ES2573479T3 - Electrically heated cigarette that includes controlled release flavoring - Google Patents

Electrically heated cigarette that includes controlled release flavoring Download PDF

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Publication number
ES2573479T3
ES2573479T3 ES03776589.8T ES03776589T ES2573479T3 ES 2573479 T3 ES2573479 T3 ES 2573479T3 ES 03776589 T ES03776589 T ES 03776589T ES 2573479 T3 ES2573479 T3 ES 2573479T3
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Spain
Prior art keywords
electrically heated
flavor
cigarette
heated cigarette
flavoring
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ES03776589.8T
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Spanish (es)
Inventor
Beverley C. Woodson
Deborah J. Newman
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Philip Morris Products SA
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Philip Morris Products SA
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Classifications

    • AHUMAN NECESSITIES
    • A24TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24BMANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
    • A24B15/00Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form
    • A24B15/18Treatment of tobacco products or tobacco substitutes
    • A24B15/28Treatment of tobacco products or tobacco substitutes by chemical substances
    • A24B15/281Treatment of tobacco products or tobacco substitutes by chemical substances the action of the chemical substances being delayed
    • A24B15/282Treatment of tobacco products or tobacco substitutes by chemical substances the action of the chemical substances being delayed by indirect addition of the chemical substances, e.g. in the wrapper, in the case
    • AHUMAN NECESSITIES
    • A24TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24BMANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
    • A24B15/00Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form
    • AHUMAN NECESSITIES
    • A24TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24BMANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
    • A24B15/00Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form
    • A24B15/18Treatment of tobacco products or tobacco substitutes
    • A24B15/28Treatment of tobacco products or tobacco substitutes by chemical substances
    • AHUMAN NECESSITIES
    • A24TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24BMANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
    • A24B15/00Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form
    • A24B15/18Treatment of tobacco products or tobacco substitutes
    • A24B15/28Treatment of tobacco products or tobacco substitutes by chemical substances
    • A24B15/281Treatment of tobacco products or tobacco substitutes by chemical substances the action of the chemical substances being delayed
    • A24B15/283Treatment of tobacco products or tobacco substitutes by chemical substances the action of the chemical substances being delayed by encapsulation of the chemical substances
    • AHUMAN NECESSITIES
    • A24TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24BMANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
    • A24B15/00Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form
    • A24B15/18Treatment of tobacco products or tobacco substitutes
    • A24B15/28Treatment of tobacco products or tobacco substitutes by chemical substances
    • A24B15/281Treatment of tobacco products or tobacco substitutes by chemical substances the action of the chemical substances being delayed
    • A24B15/283Treatment of tobacco products or tobacco substitutes by chemical substances the action of the chemical substances being delayed by encapsulation of the chemical substances
    • A24B15/284Treatment of tobacco products or tobacco substitutes by chemical substances the action of the chemical substances being delayed by encapsulation of the chemical substances the additive being bound to a host by chemical, electrical or like forces, e.g. use of precursors, inclusion complexes
    • AHUMAN NECESSITIES
    • A24TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24CMACHINES FOR MAKING CIGARS OR CIGARETTES
    • A24C5/00Making cigarettes; Making tipping materials for, or attaching filters or mouthpieces to, cigars or cigarettes
    • A24C5/01Making cigarettes for simulated smoking devices
    • AHUMAN NECESSITIES
    • A24TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24DCIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D1/00Cigars; Cigarettes
    • A24D1/08Cigars; Cigarettes with lighting means
    • AHUMAN NECESSITIES
    • A24TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24DCIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D1/00Cigars; Cigarettes
    • A24D1/20Cigarettes specially adapted for simulated smoking devices
    • AHUMAN NECESSITIES
    • A24TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24DCIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
    • A24D3/00Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
    • A24D3/17Filters specially adapted for simulated smoking devices

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)
  • Manufacture Of Tobacco Products (AREA)

Abstract

Un cigarrillo calentado eléctricamente (23) para un sistema eléctrico para fumar (21), que comprende: al menos un sorbente; y un aditivo liberador del saborizante que incluye al menos un saborizante liberable en el cigarrillo calentado eléctricamente (23) después de que el aditivo liberador del saborizante se calienta eléctricamente a al menos una temperatura mínima, en donde el aditivo liberador del saborizante es un complejo de inclusión que incluye una molécula hospedera y el saborizante es una molécula huésped en el complejo de inclusión.An electrically heated cigarette (23) for an electrical smoking system (21), comprising: at least one sorbent; and a flavor-releasing additive including at least one releasable flavor in the electrically heated cigarette (23) after the flavor-releasing additive is electrically heated to at least a minimum temperature, wherein the flavor-releasing additive is a complex of inclusion that includes a host molecule and the flavorant is a guest molecule in the inclusion complex.

Description

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DESCRIPCIONDESCRIPTION

Cigarrillo calentado electricamente que incluye saborizante con liberacion controlada AntecedentesElectrically heated cigarette that includes flavoring with controlled release Background

Los cigarrillos tradicionales se fuman encendiendo un extremo de una varilla de tabaco envuelta y aspirando el aire predominantemente a traves del extremo encendido mediante la succion en un extremo de boquilla del cigarrillo. Los cigarrillos tradicionales producen humo como resultado de la combustion, durante la cual el tabaco combustiona a temperatures que exceden tipicamente los 800 °C durante una calada. El calor de la combustion libera varios productos de la combustion gaseosos y destilados del tabaco. Cuando estos productos gaseosos se aspiran a traves del cigarrillo, se pueden enfriar y condensar para formar un aerosol, que proporciona los sabores y aromas asociados con la accion de fumar.Traditional cigarettes are smoked by lighting one end of a wrapped tobacco rod and sucking the air predominantly through the lit end by sucking at one end of the cigarette's mouthpiece. Traditional cigarettes produce smoke as a result of combustion, during which tobacco combustion at temperatures typically exceeding 800 ° C during a puff. The heat of combustion releases several combustion products gaseous and tobacco distillates. When these gaseous products are aspirated through the cigarette, they can be cooled and condensed to form an aerosol, which provides the flavors and aromas associated with the action of smoking.

Los cigarrillos tradicionales producen humo de la corriente lateral durante el ardimiento entre caladas. Una vez encendido, normalmente se consumen totalmente o se desechan. Es posible encender nuevamente un cigarrillo tradicional, pero no es conveniente por razones subjetivas que incluyen sabor, gusto y mal olor.Traditional cigarettes produce smoke from the sidestream during burning between puffs. Once turned on, they are usually consumed completely or discarded. It is possible to light a traditional cigarette again, but it is not convenient for subjective reasons that include taste, taste and bad smell.

Como una alternativa a los cigarrillos mas tradicionales esta el cigarrillo calentado electricamente usado en sistemas electricos para fumar. Comparado con los cigarrillos tradicionales, los sistemas electricos para fumar reducen significativamente el humo de la corriente lateral, y ademas permite que los fumadores suspendan y reinicien la accion de fumar cuando deseen. Los sistemas electricos para fumar ilustrativos se describen en las patentes de Estados Unidos cedidas de manera mancomunada nums. 6,026,820; 5,988,176; 5,915,387; 5,692,526; 5,692,525; 5,666,976; 5,499,636; y 5,388,594. Los sistemas electricos para fumar incluyen un encendedor energizado electricamente y un cigarrillo calentado electricamente, que se construye para cooperar con el encendedor. Es conveniente que los sistemas electricos para fumar sean capaces de suministrar humo en una manera similar a las experiencias de un fumador con cigarrillos tradicionales, proporcionando una respuesta inmediata (el suministro de humo que ocurre inmediatamente despues de la aspiracion), un nivel conveniente de suministro (que se correlaciona con nivel de alquitran de FTC), una resistencia a la aspiracion (RTD) conveniente, asf como una consistencia de calada por calada y cigarrillo por cigarrillo.As an alternative to more traditional cigarettes is the electrically heated cigarette used in electric smoking systems. Compared to traditional cigarettes, electric smoking systems significantly reduce sidestream smoke, and also allow smokers to suspend and restart the smoking action whenever they want. Illustrative smoking electrical systems are described in United States patents assigned jointly nums. 6,026,820; 5,988,176; 5,915,387; 5,692,526; 5,692,525; 5,666,976; 5,499,636; and 5,388,594. Electric smoking systems include an electrically powered lighter and an electrically heated cigarette, which is built to cooperate with the lighter. It is desirable that electrical smoking systems be able to provide smoke in a manner similar to the experiences of a smoker with traditional cigarettes, providing an immediate response (the supply of smoke that occurs immediately after aspiration), a convenient level of supply (which is correlated with FTC tar level), a suitable aspiration resistance (RTD), as well as a drag and drop consistency per cigarette.

El documento US 6,125,853 describe un dispositivo generador de sabor que comprende un cuerpo con sabor adyacente un deposito de calor. El cuerpo con sabor contiene un saborizante que se libera despues del calentamiento del cuerpo. Para usar el dispositivo, el deposito de calor y el cuerpo con sabor se calientan por un calentador electrico. El deposito de calor permite la generacion continuada de sabor cuando el dispositivo se aleja del calentador.US 6,125,853 describes a flavor generating device comprising a body with adjacent flavor a heat tank. The flavored body contains a flavoring that is released after the body warms. To use the device, the heat tank and the flavored body are heated by an electric heater. The heat tank allows the continuous generation of flavor when the device moves away from the heater.

Se han incorporado saborizantes volatiles en cigarrillos tradicionales para anadir sabores y aromas al humo de tabaco de la corriente principal y de la corriente lateral. Ver, por ejemplo, las patentes de Estados Unidos nums. 3,006,347; 3,236,244; 3,344,796; 3,426,011; 3,972,335; 4,715,390; 5,137,034; 5,144,964; y 6,325,859, y publicacion internacional de propiedad mancomunada No. WO 01/80671. Los saborizantes anadidos se volatilizan convenientemente cuando se fuma el cigarrillo. Sin embargo, los saborizantes volatiles tienden a migrar en el cigarrillo a otros componentes y posiblemente a traves de todo el cigarrillo. Los saborizantes volatiles pueden perderse de los cigarrillos durante el almacenamiento y distribucion en condiciones normales antes de que se fume el cigarrillo. El grado de migracion de los saborizantes volatiles en los cigarrillos depende de diferentes factores, que incluyen la presion de vapor del saborizante, la solubilidad del saborizante en otros componentes del cigarrillo, y la temperatura y las condiciones de humedad. Ademas, una porcion grande del saborizante anadido puede perderse hacia el humo de la corriente lateral en los cigarrillos tradicionales.Volatile flavorings have been incorporated into traditional cigarettes to add flavors and aromas to tobacco smoke from the mainstream and sidestream. See, for example, United States patents nums. 3,006,347; 3,236,244; 3,344,796; 3,426,011; 3,972,335; 4,715,390; 5,137,034; 5,144,964; and 6,325,859, and international joint ownership publication No. WO 01/80671. The added flavorings are conveniently volatilized when the cigarette is smoked. However, volatile flavorings tend to migrate in the cigarette to other components and possibly throughout the cigarette. Volatile flavorings can be lost from cigarettes during storage and distribution under normal conditions before the cigarette is smoked. The degree of migration of volatile flavorings in cigarettes depends on different factors, including the vapor pressure of the flavor, the solubility of the flavor in other components of the cigarette, and the temperature and humidity conditions. In addition, a large portion of the flavor added may be lost into the smoke from the sidestream in traditional cigarettes.

Los saborizantes que se han incorporado en los cigarrillos tradicionales pueden ademas deteriorarse qrnmica y/o ffsicamente por el contacto y/o reaccion con otros componentes del cigarrillo, asf como con el ambiente. Por ejemplo, el carbon activado se ha incorporado en los cigarrillos tradicionales para retirar los constituyentes de la fase gaseosa del humo de la corriente principal. Sin embargo, los saborizantes que se han incorporado en los cigarrillos junto con el carbon activado se han absorbido por el carbon activado, taponando los poros del carbon activado y desactivando consecuentemente el carbon activado, disminuyendo de esta manera su capacidad para filtrar el humo de tabaco.The flavorings that have been incorporated into traditional cigarettes can also deteriorate chemically and / or physically by contact and / or reaction with other components of the cigarette, as well as with the environment. For example, activated carbon has been incorporated into traditional cigarettes to remove the constituents of the gaseous phase of the smoke from the mainstream. However, the flavorings that have been incorporated into the cigarettes together with the activated carbon have been absorbed by the activated carbon, clogging the pores of the activated carbon and consequently deactivating the activated carbon, thereby decreasing its ability to filter tobacco smoke .

Por las razones anteriores, los saborizantes que se han incorporado en los cigarrillos tradicionales no se han suministrado de manera totalmente satisfactoria al fumador. Consecuentemente, los saborizantes incorporados en algunos cigarrillos tradicionales no han proporcionado satisfactoriamente el efecto de sabor deseado al fumador y los valores deseados del saborizante para la calidad subjetiva del cigarrillo han sido menos que los deseados. Debido a las perdidas de los saborizantes, la uniformidad de los cigarrillos saborizados no ha sido totalmente satisfactoria. Ademas, la sorcion de los saborizantes por los sorbentes en los cigarrillos ha desactivado los sorbentes y reducido de esta manera su capacidad para retirar los constituyentes de la fase gaseosa del humo de tabaco.For the above reasons, the flavorings that have been incorporated into traditional cigarettes have not been supplied completely satisfactorily to the smoker. Consequently, the flavorings incorporated in some traditional cigarettes have not satisfactorily provided the desired flavor effect to the smoker and the desired values of the flavoring for the subjective quality of the cigarette have been less than desired. Due to the loss of flavorings, the uniformity of flavored cigarettes has not been entirely satisfactory. In addition, the sorption of flavorings by sorbents in cigarettes has deactivated sorbents and thus reduced their ability to remove the constituents of the gaseous phase of tobacco smoke.

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ResumenSummary

De conformidad con un primer aspecto de la presente invencion, se proporciona un cigarrillo calentado electricamente por un sistema electrico para fumar, que comprende al menos un sorbente y un aditivo liberador del saborizante que incluye al menos un saborizante liberable en el cigarrillo calentado electricamente despues de que el aditivo liberador del saborizante se calienta electricamente a al menos una temperatura minima, en donde el aditivo liberador del saborizante es un complejo de inclusion que incluye una molecula hospedera y el saborizante es una molecula huesped en el complejo de inclusion.In accordance with a first aspect of the present invention, an electrically heated cigarette is provided by an electric smoking system, comprising at least one sorbent and a flavoring-releasing additive that includes at least one releasable flavoring in the electrically heated cigarette after that the flavoring-releasing additive is electrically heated to at least a minimum temperature, wherein the flavoring-releasing additive is an inclusion complex that includes a host molecule and the flavor is a host molecule in the inclusion complex.

Por lo tanto, el cigarrillo calentado electricamente comprende un sorbente y un saborizante incorporados en el cigarrillo de una manera que minimiza preferentemente la liberacion y migracion del saborizante en el cigarrillo antes de la accion de fumar, por ejemplo, en condiciones ambientales, y por lo tanto, minimiza preferentemente la desactivacion del sorbente por el saborizante. Ademas, el saborizante se libera en el cigarrillo de manera controlada durante la accion de fumar. Consecuentemente, el saborizante mejora preferentemente las caractensticas subjetivas del cigarrillo mientras que el sorbente mantiene su capacidad para retirar los constituyentes de la fase gaseosa del humo de la corriente principal.Therefore, the electrically heated cigarette comprises a sorbent and a flavoring incorporated in the cigarette in a manner that preferably minimizes the release and migration of the flavor in the cigarette before the action of smoking, for example, in environmental conditions, and therefore therefore, it preferably minimizes deactivation of the sorbent by the flavor. In addition, the flavor is released in the cigarette in a controlled manner during the smoking action. Consequently, the flavor preferably improves the subjective characteristics of the cigarette while the sorbent maintains its ability to remove the constituents of the gas phase of the smoke from the mainstream.

De conformidad con un segundo aspecto de la presente invencion, se proporciona un metodo para hacer un cigarrillo calentado electricamente como se describio anteriormente, que comprende incorporar dentro de un cigarrillo calentado electricamente el al menos un sorbente y el aditivo liberador del saborizante que incluye al menos un saborizante liberable en el cigarrillo calentado electricamente despues de que el aditivo liberador del saborizante se calienta electricamente a al menos la temperatura minima, en donde el aditivo liberador del saborizante es un complejo de inclusion que incluye una molecula hospedera y el saborizante es una molecula huesped en el complejo de inclusion.In accordance with a second aspect of the present invention, there is provided a method of making an electrically heated cigarette as described above, which comprises incorporating into an electrically heated cigarette the at least one sorbent and the flavor-releasing additive that includes at least a releasable flavoring in the electrically heated cigarette after the flavoring-releasing additive is electrically heated to at least the minimum temperature, wherein the flavoring-releasing additive is an inclusion complex that includes a host molecule and the flavoring is a host molecule in the inclusion complex.

De conformidad con un tercer aspecto de la presente invencion, se proporciona un metodo para fumar el cigarrillo calentado electricamente como se describio anteriormente, que comprende calentar electricamente una porcion del cigarrillo calentado electricamente para formar el humo y aspirar el humo a traves del cigarrillo calentado electricamente, el sorbente que retira al menos un constituyente de la fase gaseosa seleccionado del humo de la corriente principal.In accordance with a third aspect of the present invention, there is provided a method of smoking the electrically heated cigarette as described above, which comprises electrically heating a portion of the electrically heated cigarette to form the smoke and aspirating the smoke through the electrically heated cigarette , the sorbent that removes at least one constituent of the gas phase selected from the mainstream smoke.

De conformidad con un cuarto aspecto de la presente invencion, se proporciona un sistema electrico para fumar que comprende un encendedor y al menos un cigarrillo calentado electricamente que incluye al menos un sorbente y un aditivo liberador del saborizante que incluye al menos un saborizante que se libera en el cigarrillo calentado electricamente despues de que el aditivo liberador del saborizante se calienta a al menos una temperatura minima, en donde el aditivo liberador del saborizante es un complejo de inclusion que incluye una molecula hospedera y el saborizante es una molecula huesped en el complejo de inclusion.In accordance with a fourth aspect of the present invention, an electric smoking system is provided comprising a lighter and at least one electrically heated cigarette that includes at least one sorbent and a flavor-releasing additive that includes at least one flavoring that is released. in the electrically heated cigarette after the flavoring-releasing additive is heated to at least a minimum temperature, where the flavoring-releasing additive is an inclusion complex that includes a host molecule and the flavoring is a host molecule in the complex of inclusion.

De conformidad con un quinto aspecto de la presente invencion, se proporciona un cigarrillo calentado electricamente que comprende al menos un sorbente y al menos un aditivo liberador del saborizante que tiene una forma seleccionada del grupo que consiste en perlas, pelfcula, y un complejo de inclusion, cada aditivo liberador del saborizante que incluye al menos un saborizante liberable en el cigarrillo calentado electricamente despues de que el aditivo liberador del saborizante se calienta electricamente a al menos una temperatura minima, en donde el aditivo liberador del saborizante es un complejo de inclusion que incluye una molecula hospedera y el saborizante es una molecula huesped en el complejo de inclusion.In accordance with a fifth aspect of the present invention, an electrically heated cigarette is provided comprising at least one sorbent and at least one flavor-releasing additive having a shape selected from the group consisting of beads, film, and an inclusion complex , each flavor-releasing additive that includes at least one releasable flavor in the electrically heated cigarette after the flavor-releasing additive is electrically heated to at least a minimum temperature, wherein the flavor-releasing additive is an inclusion complex that includes a host molecule and the flavor is a host molecule in the inclusion complex.

De conformidad con un sexto aspecto de la presente invencion, se proporciona un metodo para hacer un cigarrillo calentado electricamente como se describio anteriormente, que comprende incorporar dentro de un cigarrillo calentado electricamente el al menos un sorbente y el al menos un aditivo liberador del saborizante en forma de un complejo de inclusion, el aditivo liberador del saborizante que incluye al menos un saborizante liberable en el cigarrillo calentado electricamente despues de que el aditivo liberador del saborizante se calienta electricamente a al menos la temperatura minima.In accordance with a sixth aspect of the present invention, there is provided a method for making an electrically heated cigarette as described above, which comprises incorporating into an electrically heated cigarette the at least one sorbent and the at least one flavoring-releasing additive in In the form of an inclusion complex, the flavor-releasing additive that includes at least one releasable flavor in the electrically heated cigarette after the flavor-releasing additive is electrically heated to at least the minimum temperature.

De conformidad con un septimo aspecto de la presente invencion, se proporciona un metodo para fumar el cigarrillo calentado electricamente como se describio anteriormente, que comprende calentar una porcion del cigarrillo calentado electricamente para formar el humo y aspirar el humo a traves del cigarrillo calentado electricamente, el sorbente que retira al menos un constituyente de la fase gaseosa seleccionado del humo de la corriente principal.In accordance with a seventh aspect of the present invention, there is provided a method of smoking the electrically heated cigarette as described above, which comprises heating a portion of the electrically heated cigarette to form the smoke and aspirating the smoke through the electrically heated cigarette, the sorbent that removes at least one constituent of the gas phase selected from the mainstream smoke.

En una modalidad preferida, dos o mas aditivos liberadores del saborizante diferentes que tienen temperaturas de liberacion del saborizante diferentes se localizan en diferentes localizaciones en un cigarrillo calentado electricamente que alcanzan diferentes temperaturas entre sf. Los aditivos liberadores del saborizante pueden localizarse en localizaciones en el cigarrillo calentado electricamente que alcanzan la temperatura de liberacion del saborizante para los aditivos liberadores del saborizante. En consecuencia, el aditivo liberador del saborizante puede proporcionar una liberacion controlada y eficiente del saborizante durante la accion de fumar.In a preferred embodiment, two or more different flavoring release additives having different flavor release temperatures are located at different locations in an electrically heated cigarette that reach different temperatures between sf. Flavoring-releasing additives can be located at locations in the electrically heated cigarette that reach the flavor-releasing temperature for flavor-releasing additives. Consequently, the flavoring-releasing additive can provide a controlled and efficient release of the flavoring during the smoking action.

El cigarrillo calentado electricamente puede comprender varios sorbentes. Proporcionando el saborizante en el aditivo liberador del saborizante, que minimiza la liberacion y/o migracion del saborizante hasta que el aditivo liberador del saborizante alcanza la temperatura de liberacion del saborizante, se evita esencialmente que elThe electrically heated cigarette may comprise several sorbents. By providing the flavor in the flavor-releasing additive, which minimizes the release and / or migration of the flavor until the flavor-releasing additive reaches the flavor-releasing temperature, it is essentially prevented that the

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saborizante se absorba por, y por lo tanto desactive el sorbente, sin afectar adversamente de esta manera la capacidad del sorbente para retirar los constituyentes de la fase gaseosa seleccionados del humo de tabaco de la corriente principal. Ademas, debido a que el saborizante se libera por medio de la temperatura en el cigarrillo, este se puede suministrar de manera efectiva a un fumador de manera controlada durante los ciclos de caladas del 5 cigarrillo.Flavoring is absorbed by, and therefore deactivates the sorbent, without adversely affecting the ability of the sorbent to remove the constituents of the gas phase selected from the tobacco smoke from the mainstream. In addition, because the flavor is released by means of the temperature in the cigarette, it can be effectively delivered to a smoker in a controlled manner during the puffing cycles of the cigarette.

Breve descripcion de las figurasBrief description of the figures

La Fig. 1 ilustra una modalidad preferida de un cigarrillo calentado electricamente para su uso en un sistema electrico para fumar con el cigarrillo en una condicion parcialmente desensamblada.Fig. 1 illustrates a preferred embodiment of an electrically heated cigarette for use in an electric system for smoking with the cigarette in a partially disassembled condition.

La Fig. 2 ilustra el cigarrillo calentado electricamente mostrado en la Fig. 1 en la condicion ensamblada con un 10 extremo del cigarrillo que entra en contacto con una pieza tope de un encendedor operado electricamente del sistema electrico para fumar.Fig. 2 illustrates the electrically heated cigarette shown in Fig. 1 in the condition assembled with an end of the cigarette that comes into contact with a stopper of an electrically operated lighter of the electric smoking system.

La Fig. 3 ilustra otra modalidad preferida de un cigarrillo calentado electricamente para su uso en un sistema electrico para fumar con el cigarrillo en una condicion parcialmente desensamblada.Fig. 3 illustrates another preferred embodiment of an electrically heated cigarette for use in an electric system for smoking with the cigarette in a partially disassembled condition.

La Fig. 4 ilustra una modalidad preferida de un sistema electrico para fumar con un cigarrillo calentado 15 electricamente insertado dentro del encendedor operado electricamente.Fig. 4 illustrates a preferred embodiment of an electric smoking system with an electrically heated cigarette 15 inserted into the electrically operated lighter.

La Fig. 5 ilustra el sistema electrico para fumar mostrado en la Fig. 4 con el cigarrillo retirado del encendedor.Fig. 5 illustrates the electric smoking system shown in Fig. 4 with the cigarette removed from the lighter.

La Fig. 6 ilustra un elemento calentador del sistema electrico para fumar.Fig. 6 illustrates a heating element of the electric smoking system.

Descripcion detallada de las modalidades preferidasDetailed description of the preferred modalities

Un cigarrillo calentado electricamente incluye uno o mas sorbentes y al menos un saborizante para actuar sobre el 20 sabor, gusto, y/o aroma del humo de tabaco. En una modalidad preferida, el saborizante se incorpora en el cigarrillo en un aditivo liberador del saborizante, que minimiza preferentemente la liberacion y/o migracion del saborizante en el cigarrillo antes de la accion de fumar. Preferentemente, el saborizante se libera desde el aditivo liberador del saborizante de manera controlada durante la accion de fumar del cigarrillo. El aditivo liberador del saborizante permite que el saborizante mejore las caractensticas subjetivas del cigarrillo mientras que evita un impacto adverso 25 sobre la efectividad del sorbente en la retirada de los constituyentes de la fase gaseosa seleccionados del humo de la corriente principal.An electrically heated cigarette includes one or more sorbents and at least one flavor to act on the taste, taste, and / or aroma of tobacco smoke. In a preferred embodiment, the flavor is incorporated into the cigarette in a flavor-releasing additive, which preferably minimizes the release and / or migration of the flavor in the cigarette before smoking. Preferably, the flavor is released from the flavor-releasing additive in a controlled manner during the smoking action of the cigarette. The flavor-releasing additive allows the flavor to improve the subjective characteristics of the cigarette while avoiding an adverse impact on the effectiveness of the sorbent in the removal of the constituents of the gas phase selected from the mainstream smoke.

En una modalidad preferida del cigarrillo calentado electricamente, el saborizante se libera en el cigarrillo despues de que el aditivo liberador del saborizante se calienta a al menos una temperatura minima (temperatura de liberacion del saborizante), lo cual ocurre cuando un fumador aspira el humo de la corriente principal a traves del cigarrillo.In a preferred embodiment of the electrically heated cigarette, the flavoring is released into the cigarette after the flavoring-releasing additive is heated to at least a minimum temperature (flavoring release temperature), which occurs when a smoker draws smoke from the mainstream through the cigarette.

30 Se ha determinado que las diferentes regiones del cigarrillo calentado electricamente alcanzan diferentes temperaturas cuando un fumador aspira el cigarrillo. En una modalidad preferida, los aditivos liberadores del saborizante diferentes se disponen selectivamente en dos o mas localizaciones en el cigarrillo calentado electricamente que alcanzan respectivamente al menos la temperatura minima a la que se libera el saborizante desde el aditivo liberador del saborizante dispuesto en la localizacion. Localizando selectivamente uno o mas 35 aditivos liberadores del saborizante en el cigarrillo, el cigarrillo puede proporcionar una liberacion controlada y eficiente del saborizante durante la accion de fumar.30 It has been determined that different regions of the electrically heated cigarette reach different temperatures when a smoker sucks the cigarette. In a preferred embodiment, the different flavoring release additives are selectively arranged in two or more locations in the electrically heated cigarette that respectively reach at least the minimum temperature at which the flavor is released from the flavoring release additive disposed at the location. By selectively locating one or more 35 flavor-releasing additives in the cigarette, the cigarette can provide a controlled and efficient release of the flavor during the smoking action.

El aditivo liberador del saborizante puede tener varias construcciones y composiciones y puede localizarse en una o mas localizaciones, y/o incorporarse en uno o mas componentes del cigarrillo calentado electricamente. Los aditivos liberadores del saborizante pueden disenarse para tener diferentes temperaturas de liberacion del saborizante 40 asociadas. En consecuencia, los aditivos liberadores del saborizante pueden incorporarse en el cigarrillo calentado electricamente en localizaciones que son mas adecuadas para proporcionar una liberacion eficiente del saborizante desde un aditivo liberador del saborizante particular.The flavor-releasing additive may have various constructions and compositions and may be located in one or more locations, and / or incorporated into one or more components of the electrically heated cigarette. The flavoring release additives may be designed to have different associated flavor release temperatures 40. Consequently, flavoring-releasing additives can be incorporated into the electrically heated cigarette in locations that are more suitable to provide efficient flavor release from a particular flavoring-releasing additive.

El cigarrillo calentado electricamente puede comprender uno o mas sorbentes capaces de retirar constituyentes de la fase gaseosa seleccionados del humo de la corriente principal. Proporcionando el saborizante en el aditivo 45 liberador del saborizante que minimiza preferentemente la liberacion y/o migracion del saborizante en el cigarrillo hasta que el aditivo liberador del saborizante alcanza al menos la temperatura minima, se evita esencialmente que el saborizante desactive el sorbente. Por lo tanto, puede mantenerse la capacidad del sorbente para retirar constituyentes de la fase gaseosa seleccionados del humo de tabaco de la corriente principal. Preferentemente, el aditivo liberador del saborizante permite que el saborizante se suministre de manera efectiva a un fumador de 50 manera controlada.The electrically heated cigarette may comprise one or more sorbents capable of removing constituents from the gas phase selected from the mainstream smoke. By providing the flavor in the flavor-releasing additive 45 which preferably minimizes the release and / or migration of the flavor in the cigarette until the flavor-releasing additive reaches at least the minimum temperature, it is essentially prevented that the flavoring deactivates the sorbent. Therefore, the ability of the sorbent to remove selected gaseous phase constituents of tobacco smoke from the mainstream can be maintained. Preferably, the flavor-releasing additive allows the flavor to be delivered effectively to a smoker in a controlled manner.

Como se usa en la presente descripcion, el termino “sorcion” denota filtracion por adsorcion y/o absorcion. La sorcion pretende abarcar las interacciones en la superficie externa del sorbente, asf como las interacciones dentro de los poros y canales del sorbente. En otras palabras, un “sorbente” es una sustancia que tiene la capacidad de condensar o sostener las moleculas de otras sustancias en su superficie, y/o la capacidad aceptar otras sustancias,As used herein, the term "sorption" denotes adsorption and / or absorption filtration. Sorption is intended to cover interactions on the external surface of the sorbent, as well as the interactions within the pores and channels of the sorbent. In other words, a "sorbent" is a substance that has the ability to condense or sustain the molecules of other substances on its surface, and / or the ability to accept other substances,

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es dedr, a traves de la penetracion de las otras sustancias dentro de su estructura interna, o dentro de sus poros. El termino “sorbente” como se usa en la presente se refiere a ya sea un adsorbente, un absorbente, o una sustancia que funciona tanto como un adsorbente y un absorbente.that is, through the penetration of the other substances within its internal structure, or into its pores. The term "sorbent" as used herein refers to either an adsorbent, an absorbent, or a substance that functions as both an adsorbent and an absorbent.

Como se usa en la presente descripcion, el termino “retirar” se refiere a adsorcion y/o absorcion de al menos algunas porciones de un componente del humo de tabaco de la corriente principal.As used herein, the term "withdraw" refers to adsorption and / or absorption of at least some portions of a tobacco smoke component of the mainstream.

El termino “humo de la corriente principal” incluye la mezcla de gases que pasan por la varilla de tabaco y la emision a traves del extremo del filtro, es decir, la cantidad de humo que se emite o aspira del extremo del lado de la boca de un cigarrillo al fumar el cigarrillo. El humo de la corriente principal contiene aire que se aspira a traves de la region calentada del cigarrillo y a traves de la envoltura de papel.The term "mainstream smoke" includes the mixture of gases that pass through the tobacco rod and the emission through the end of the filter, that is, the amount of smoke that is emitted or aspirated from the end of the side of the mouth of a cigarette when smoking the cigarette. The mainstream smoke contains air that is sucked through the heated region of the cigarette and through the paper wrapper.

El termino “tamiz molecular” como se usa en la presente descripcion se refiere a una estructura porosa que comprende de un material inorganico y/o material organico. Los tamices moleculares incluyen materiales naturales y sinteticos. Los tamices moleculares pueden sorber moleculas de cierta dimensiones, mientras que rechazan moleculas que tienen dimensiones mayores.The term "molecular sieve" as used herein refers to a porous structure comprising an inorganic material and / or organic material. Molecular sieves include natural and synthetic materials. Molecular sieves can sip molecules of a certain size, while rejecting molecules that have larger dimensions.

Las Figs. 1 y 2 ilustran una modalidad preferida del cigarrillo calentado electricamente 23. Sin embargo, debe entenderse que el cigarrillo calentado electricamente puede tener otra configuraciones adecuadas para fumarse en un encendedor energizado electricamente. El cigarrillo calentado electricamente 23 comprende una varilla de tabaco 60 y una boquilla de filtro 62 unidas por el papel boquilla 64. La varilla de tabaco 60 incluye preferentemente una trama de tabaco o “esterilla” 66 doblada en una forma tubular alrededor del filtro de flujo libre 74 en un extremo y un tapon de tabaco 80 en el otro extremo.Figs. 1 and 2 illustrate a preferred embodiment of the electrically heated cigarette 23. However, it should be understood that the electrically heated cigarette may have other configurations suitable for smoking in an electrically energized lighter. The electrically heated cigarette 23 comprises a tobacco rod 60 and a filter nozzle 62 joined by the nozzle paper 64. The tobacco rod 60 preferably includes a tobacco weft or "mat" 66 folded in a tubular shape around the flow filter Free 74 at one end and a tobacco plug 80 at the other end.

Una envoltura 71 rodea la esterilla que contiene tabaco 66 y se une a lo largo de una costura longitudinal. La envoltura 71 retiene la esterilla 66 en una condicion envuelta alrededor del filtro de flujo libre 74 y tapon de tabaco 80.A wrap 71 surrounds the tobacco-containing mat 66 and joins along a longitudinal seam. The envelope 71 retains the mat 66 in a condition wrapped around the free flow filter 74 and tobacco plug 80.

La esterilla 66 comprende preferentemente una trama base 68 y una capa de material de tabaco 70. El material de tabaco 70 puede localizarse a lo largo de la superficie interna o de la superficie externa de la trama base 68. En el extremo de boquilla de la varilla de tabaco 60, la esterilla 66 y la envoltura 71 se envuelven alrededor del tapon de filtro de flujo libre 74. Preferentemente, el tapon de tabaco 80 comprende una columna de tabaco relativamente corta 82 de picadura de tabaco, que se retiene por una envoltura interna circundante 84.The mat 66 preferably comprises a base frame 68 and a layer of tobacco material 70. The tobacco material 70 can be located along the internal surface or the external surface of the base frame 68. At the nozzle end of the tobacco rod 60, mat 66 and wrap 71 are wrapped around the free flow filter plug 74. Preferably, tobacco plug 80 comprises a relatively short tobacco column 82 of tobacco bite, which is retained by a wrap surrounding internal 84.

Hay un vado 90 entre el filtro de flujo libre 74 y el tapon de tabaco 80. El vado 90 es una porcion no rellena de la varilla de tabaco 60 y esta en comunicacion continua con la boquilla 62 a traves del filtro de flujo libre 74.There is a ford 90 between the free flow filter 74 and the tobacco plug 80. The ford 90 is an unfilled portion of the tobacco rod 60 and is in continuous communication with the nozzle 62 through the free flow filter 74.

La boquilla 62 comprende preferentemente un filtro de flujo libre 92 localizado adyacente a la varilla de tabaco 60 y un tapon de filtro de la boquilla 94 en el extremo distal de la boquilla 62 desde la varilla de tabaco 60. Preferentemente, el filtro de flujo libre 92 es tubular y transmite aire con una cafda de presion muy baja. El tapon de filtro de la boquilla 94 cierra el extremo libre de la boquilla 62.The nozzle 62 preferably comprises a free flow filter 92 located adjacent to the tobacco rod 60 and a filter cap of the nozzle 94 at the distal end of the nozzle 62 from the tobacco rod 60. Preferably, the free flow filter 92 is tubular and transmits air with a very low pressure coffee. The filter cap of the nozzle 94 closes the free end of the nozzle 62.

El cigarrillo 23 opcionalmente incluye al menos una hilera de perforaciones 12 adyacentes al extremo libre 15 del cigarrillo 23. Las perforaciones pueden formarse como hendiduras 17, que se extienden preferentemente a traves de la envoltura 71, la esterilla 66 y la envoltura interna 84.The cigarette 23 optionally includes at least one row of perforations 12 adjacent to the free end 15 of the cigarette 23. The perforations may be formed as slits 17, which preferably extend through the envelope 71, the mat 66 and the internal envelope 84.

Para mejorar aun mas el suministro, al menos una hilera adicional de perforaciones 14 que comprende las hendiduras 17 puede opcionalmente formarse en una localizacion a lo largo del tapon de tabaco 80. Las perforaciones 12 o 14 pueden comprender una unica hilera o una hilera dual de hendiduras 17. El numero y extension de las hendiduras 17 pueden seleccionarse para controlar la resistencia a la aspiracion (RTD) a lo largo de las paredes laterales del cigarrillos 23 y el suministro.To further improve the supply, at least one additional row of perforations 14 comprising the grooves 17 may optionally be formed at a location along the tobacco plug 80. The perforations 12 or 14 may comprise a single row or a dual row of slits 17. The number and extent of the slits 17 can be selected to control the aspiration resistance (RTD) along the side walls of the cigarettes 23 and the supply.

Los agujeros opcionales 16 proporcionados en la esterilla 66 se cubren por la envoltura 71. Las perforaciones 12, 14 pueden usarse para suministrar los niveles aproximados convenientes para el cigarrillo 23, con los agujeros 16 que se usan para ajustar el suministro con un efecto menor sobre la RTD.The optional holes 16 provided in the mat 66 are covered by the envelope 71. The perforations 12, 14 can be used to supply the approximate levels suitable for the cigarette 23, with the holes 16 used to adjust the supply with a minor effect on RTD

El cigarrillo 23 tiene preferentemente un diametro esencialmente constante a lo largo de su longitud. El diametro del cigarrillo 23, como la mayona de los cigarrillos tradicionales, es preferentemente entre aproximadamente 7,5 mm a 8,5 mm de manera que el sistema electrico para fumar 21 proporciona un fumador con una “sensacion en la boca” familiar durante la accion de fumar.The cigarette 23 preferably has an essentially constant diameter along its length. The diameter of the cigarette 23, like the mayona of traditional cigarettes, is preferably between about 7.5 mm to 8.5 mm so that the electric smoking system 21 provides a smoker with a familiar "mouthfeel" during the smoking action

La columna de tabaco 82 comprende preferentemente picadura de una mezcla tfpica de tabacos, tales como mezclas que comprenden tabaco brillante, Burley, y Oriental junto con, opcionalmente, tabacos reconstituidos y otros componentes mezclados, que incluyen sabores de los cigarrillos tradicionales.The tobacco column 82 preferably comprises stinging a typical mixture of tobacco, such as mixtures comprising bright, Burley, and Oriental tobacco together with, optionally, reconstituted tobacco and other mixed components, which include flavors of traditional cigarettes.

El filtro de flujo libre 92 y el tapon de filtro de la boquilla 94 se unen preferentemente como un tapon combinado con una envoltura del tapon 101. La envoltura del tapon 101 es preferentemente una envoltura del tapon porosa y de bajo peso. El tapon combinado se une a la varilla de tabaco 60 mediante el papel boquilla 64.The free flow filter 92 and the filter plug of the nozzle 94 are preferably joined as a plug combined with a wrapper of the plug 101. The wrapper of the plug 101 is preferably a wrap of the porous and low weight plug. The combined cap is attached to the tobacco rod 60 by the nozzle paper 64.

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Como se describio anteriormente, el cigarrillo calentado electricamente 23 puede comprender uno o mas sorbentes que retiran los constituyentes de la fase gaseosa de humo de tabaco. El sorbente puede comprender uno o mas materiales porosos a traves del cual puede fluir el humo de tabaco. En una modalidad preferida, el sorbente es carbon activado. Por ejemplo, el sorbente puede comprender granulos de carbon activado localizados en un vado en el filtro, o partfculas de carbon activado localizadas en un papel o material fibroso. El carbon activado puede tener varias formas que incluyen partfculas, fibras, perlas, y similares. El carbon activado puede tener diferentes caractensticas de porosidad, tal como un tamano de los poros seleccionado y volumen de poro total.As described above, the electrically heated cigarette 23 may comprise one or more sorbents that remove the constituents of the gaseous phase of tobacco smoke. The sorbent may comprise one or more porous materials through which tobacco smoke can flow. In a preferred embodiment, the sorbent is activated carbon. For example, the sorbent may comprise activated carbon granules located in a ford in the filter, or activated carbon particles located in a paper or fibrous material. Activated carbon can have various shapes that include particles, fibers, beads, and the like. Activated carbon can have different porosity characteristics, such as a selected pore size and total pore volume.

En otra modalidad preferida, el sorbente es uno o mas materiales sorbentes de tamiz molecular adecuados. Los sorbentes de tamiz molecular que pueden usarse en el cigarrillo calentado electricamente 23 incluyen, pero sin limitarse a, uno o mas de las zeolitas, silicatos mesoporosos, fosfatos de aluminio, aluminosilicatos mesoporosos, y otros materiales porosos relacionados, tales como geles de oxidos mezclados, que pueden comprender opcionalmente ademas metales y/o iones inorganico u organicos. Ver, por ejemplo, la publicacion internacional de propiedad mancomunada No. wO 01/80973.In another preferred embodiment, the sorbent is one or more suitable molecular sieve sorbent materials. Molecular sieve sorbents that can be used in electrically heated cigarette 23 include, but are not limited to, one or more of the zeolites, mesoporous silicates, aluminum phosphates, mesoporous aluminosilicates, and other related porous materials, such as mixed oxide gels , which may optionally also comprise metals and / or inorganic or organic ions. See, for example, international joint ownership publication No. wO 01/80973.

En una modalidad preferida, el sorbente es uno o mas zeolitas. Las zeolitas incluyen aluminosilicatos cristalinos que tienen poros, tales como canales y/o cavidades de dimensiones de tamano de los poros molecular uniforme. Hay muchas estructuras unicas de zeolitas conocidas que tiene diferente tamano y forma de poros, que pueden afectar significativamente las propiedades de estos materiales con respecto a los procesos de sorcion y separacion. Las moleculas pueden separarse por zeolitas por los efectos del tamano y forma relacionado con la posible orientacion de las moleculas en los poros, y/o por las diferencias en resistencias a la sorcion. Una o mas zeolitas que tienen poros mas grandes que los uno o mas componentes de la fase gaseosa seleccionados de un gas que se desea filtrar pueden usarse en el cigarrillo calentado electricamente 23, de manera que solamente las moleculas seleccionadas que son lo suficientemente pequenas para pasar a traves de los poros del material de tamiz molecular son capaces de entrar en las cavidades y sorberse en la zeolita.In a preferred embodiment, the sorbent is one or more zeolites. Zeolites include crystalline aluminosilicates that have pores, such as channels and / or cavities of uniform molecular size of the pores. There are many unique structures of known zeolites that have different size and shape of pores, which can significantly affect the properties of these materials with respect to the sorption and separation processes. The molecules can be separated by zeolites by the effects of the size and shape related to the possible orientation of the molecules in the pores, and / or by the differences in resistance to sorption. One or more zeolites having pores larger than the one or more components of the gas phase selected from a gas to be filtered can be used in the electrically heated cigarette 23, so that only the selected molecules that are small enough to pass Through the pores of the molecular sieve material they are able to enter the cavities and sip into the zeolite.

La zeolita puede ser, pero sin limitarse a, una o mas de zeolita A; zeolita X; zeolita Y; zeolita K-G; zeolita ZK-5; zeolita BETA; zeolita ZK-4 y zeolita ZSM-5. En una modalidad preferida, se usa la zeolita ZSM-5 y/o zeolita BETA. La ZSM-5 esta en la familia de clasificacion estructural MFI y representada por los datos qrnmicos del cristal [Nan(AlnSi96-nOi92)~ I6H2O, con n < 27, ortorrombico, Pnma], mientras que la zeolita BETA esta en la familia de clasificacion estructural BEA y representada por los datos qrnmicos del cristal [Na7(AlySi57Oi28) tetragonal, P4i22]. Estas dos zeolitas son termicamente estables a temperaturas hasta aproximadamente 800 °C, permitiendoles incorporarse en filtros de cigarrillos y/o la varilla de tabaco del cigarrillo calentado electricamente 23.The zeolite may be, but not limited to, one or more zeolite A; zeolite X; zeolite Y; K-G zeolite; ZK-5 zeolite; BETA zeolite; ZK-4 zeolite and ZSM-5 zeolite. In a preferred embodiment, the zeolite ZSM-5 and / or zeolite BETA is used. The ZSM-5 is in the MFI structural classification family and represented by the chemical data of the crystal [Nan (AlnSi96-nOi92) ~ I6H2O, with n <27, orthromrombic, Pnma], while the BETA zeolite is in the family of BEA structural classification and represented by the chemical data of the crystal [Na7 (AlySi57Oi28) tetragonal, P4i22]. These two zeolites are thermally stable at temperatures up to approximately 800 ° C, allowing them to be incorporated into cigarette filters and / or the tobacco rod of the electrically heated cigarette 23.

En otra modalidad preferida, el sorbente incorporado en el cigarrillo calentado electricamente 23 tiene una composicion compuesta. En tal modalidad, el sorbente comprende, por ejemplo, carbon activado y uno o mas materiales de tamiz molecular, tal como los descritos anteriormente. Por ejemplo, las fibras sorbentes pueden impregnarse con al menos un sorbente.In another preferred embodiment, the sorbent incorporated in the electrically heated cigarette 23 has a composite composition. In such an embodiment, the sorbent comprises, for example, activated carbon and one or more molecular sieve materials, such as those described above. For example, sorbent fibers can be impregnated with at least one sorbent.

Los tamices moleculares microporosos, mesoporosos, y/o macroporosos pueden usarse en el cigarrillo calentado electricamente 23, en dependencia del(de los) componente(s) seleccionado(s) que se desea(n) retirar del humo de tabaco de la corriente principal.Microporous, mesoporous, and / or macroporous molecular sieves can be used in electrically heated cigarette 23, depending on the selected component (s) desired to be removed from mainstream tobacco smoke .

El sorbente puede incorporarse en una o mas localizaciones del cigarrillo calentado electricamente 23. Por ejemplo, el sorbente puede colocarse en la trayectoria del filtro tubular de flujo libre 74, en el filtro de flujo libre 92, y/o en el espacio vacfo 90. El sorbente puede, adicional o alternativamente, incorporarse en el tapon de tabaco 80.The sorbent may be incorporated into one or more locations of the electrically heated cigarette 23. For example, the sorbent may be placed in the path of the free flow tubular filter 74, in the free flow filter 92, and / or in the empty space 90. The sorbent can, additionally or alternatively, be incorporated in the tobacco plug 80.

La Fig. 3 muestra otra modalidad preferida de un cigarrillo calentado electricamente 23 que incluye un filtro 150. El filtro 150 comprende un sorbente en forma de fibras orientadas 152 y un forro 154, tal como papel, que rodea las fibras. El sorbente puede ser, por ejemplo, uno o mas de carbon activado, gel de sflice, zeolita, y otros tamices moleculares en forma fibrosa. Los sorbentes pueden ser materiales de superficie modificada, por ejemplo, gel de sflice de superficie modificada, tal como gel de sflice de aminopropilsilil (APS). Las mezclas de sorbentes pueden proporcionar diferentes caractensticas de filtracion para lograr una composicion de humo de la corriente principal filtrada objetivo.Fig. 3 shows another preferred embodiment of an electrically heated cigarette 23 that includes a filter 150. The filter 150 comprises a sorbent in the form of oriented fibers 152 and a liner 154, such as paper, surrounding the fibers. The sorbent can be, for example, one or more of activated carbon, silica gel, zeolite, and other molecular sieves in fibrous form. Sorbents may be modified surface materials, for example, modified surface silica gel, such as aminopropylsilyl silica gel (APS). Sorbent blends can provide different filtration characteristics to achieve a smoke composition of the target filtered mainstream.

Alternativamente, las fibras 152 pueden comprender uno o mas materiales sorbentes, tales como carbon, sflice, zeolita y similares, impregnados en fibras de microcavidades, tales como la fibra de microcavidad TRIAD™, como se describe en la publicacion internacional de propiedad mancomunada No. WO 01/80973. En una modalidad preferida, las fibras tienen forma de fibras de microcavidades impregnadas con partfculas de uno o mas materiales sorbentes, o alternativamente fibras continuas de carbon activado. Las fibras tienen preferentemente un diametro de aproximadamente 10 micras a aproximadamente 100 micras. Las fibras puede tener una longitud de aproximadamente 10 micras a aproximadamente 200 micras, por ejemplo.Alternatively, the fibers 152 may comprise one or more sorbent materials, such as carbon, silica, zeolite and the like, impregnated with microcavity fibers, such as TRIAD ™ microcavity fiber, as described in the international joint ownership publication No. WO 01/80973. In a preferred embodiment, the fibers are in the form of microcavity fibers impregnated with particles of one or more sorbent materials, or alternatively continuous activated carbon fibers. The fibers preferably have a diameter of about 10 microns to about 100 microns. The fibers may have a length of about 10 microns to about 200 microns, for example.

En otra modalidad preferida, las fibras son conjuntos de fibras no continuas, que se orientan preferentemente paralelas a la direccion del humo de la corriente principal que fluye a traves del cigarrillo calentado electricamente.In another preferred embodiment, the fibers are sets of non-continuous fibers, which are preferably oriented parallel to the direction of the smoke from the main stream flowing through the electrically heated cigarette.

Los filtros 150 que incluyen fibras 152 pueden formarse, por ejemplo, estirando un conjunto de material de fibra sorbente no rizado, preferentemente que tienen un denier total y por filamento controlado, a traves de un forroFilters 150 including fibers 152 can be formed, for example, by stretching a set of non-curled sorbent fiber material, preferably having a total denier and by controlled filament, through a liner

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preformado o formado in-situ 154 durante el proceso de fabricacion del filtro. El filtro formado puede dimensionarse cortandolo a una longitud conveniente. Por ejemplo, los filtros pueden tener una longitud de aproximadamente 5 mm a aproximadamente 30 mm.preformed or formed in situ 154 during the manufacturing process of the filter. The formed filter can be sized by cutting it to a convenient length. For example, the filters may have a length of about 5 mm to about 30 mm.

El filtro 150 que incluye las fibras 152 puede incorporarse en el cigarrillo calentado electricamente en una o mas localizaciones convenientes. Con referencia ademas a las Figs. 1 y 2, en una modalidad preferida, el filtro 150 puede sustituirse por todo el filtro de flujo libre 92. En otra modalidad preferida, el filtro de flujo libre 150 puede sustituirse por una porcion del filtro de flujo libre 92. El filtro 150 puede estar en contacto con (es decir, colinda con) el filtro de flujo libre 74, posicionado entre el filtro de flujo libre 74 y el tapon de filtro de la boquilla 94, o en contacto con (es decir, colinda con) el tapon de filtro de la boquilla 94. El filtro 150 tiene preferentemente un diametro esencialmente igual al diametro externo del filtro de flujo libre 92 para minimizar la desviacion del humo durante el proceso de filtracion.The filter 150 that includes the fibers 152 may be incorporated into the electrically heated cigarette in one or more convenient locations. With reference also to Figs. 1 and 2, in a preferred embodiment, the filter 150 may be replaced by the entire free flow filter 92. In another preferred embodiment, the free flow filter 150 may be replaced by a portion of the free flow filter 92. The filter 150 may be being in contact with (i.e. adjoins) the free flow filter 74, positioned between the free flow filter 74 and the filter cap of the nozzle 94, or in contact with (i.e. adjoins with) the cap of nozzle filter 94. The filter 150 preferably has a diameter essentially equal to the external diameter of the free flow filter 92 to minimize smoke deflection during the filtration process.

Los sorbentes fibrosos tienen preferentemente un trazado alto con una densidad de empaque adecuada y longitud de fibra de manera que se crean trayectorias paralelas entre fibras. Tal estructura puede retirar de manera efectiva cantidades significativas de constituyentes de la fase gaseosa seleccionados, tal como formaldehndo y/o acrolema, mientras que se retira preferentemente solo una cantidad minima de materia de partfculas del humo, logrando de esta manera una reduccion significativa de los constituyentes de la fase gaseosa seleccionados, mientras que no afecta de manera significativa la materia de partfculas total (TPM) en el gas. Una densidad de empaque suficientemente baja y una longitud de fibra suficientemente corta se prefieren para lograr dicho rendimiento de la filtracion.Fibrous sorbents preferably have a high path with adequate packing density and fiber length so that parallel paths between fibers are created. Such a structure can effectively remove significant amounts of selected gaseous phase constituents, such as formaldehyde and / or acrolema, while preferably only a minimum amount of particulate matter is removed from the smoke, thereby achieving a significant reduction of the Selected constituents of the gas phase, while not significantly affecting the total particulate matter (TPM) in the gas. A sufficiently low packing density and a sufficiently short fiber length are preferred to achieve said filtration performance.

La cantidad de sorbente usado en las modalidades preferidas del cigarrillo calentado electricamente 23 depende de la cantidad de constituyentes de la fase gaseosa seleccionados en el humo de tabaco y la cantidad de los constituyentes que se desean retirar del humo de tabaco.The amount of sorbent used in the preferred embodiments of the electrically heated cigarette 23 depends on the amount of constituents of the gas phase selected in the tobacco smoke and the amount of the constituents that are desired to be removed from the tobacco smoke.

Como se describio anteriormente, el cigarrillo calentado electricamente 23 comprende ademas al menos un aditivo liberador del saborizante. Los saborizantes pueden ser, por ejemplo, uno o mas de saborizantes que incluyen, pero no se limitan a, mentol, menta, tal como hierbabuena y menta verde, chocolate, regaliz, sabores de dtricos y otras frutas, gamma octalactona, vainillina, etil vainillina, sabores aromatizadores del aliento, sabores de especias tales como canela, salicilato de metilo, linalool, esencia de bergamota, esencia de geranio, esencia de limon, esencia de jengibre, y sabor de tabaco. En una modalidad preferida, el saborizante es mentol y opcionalmente al menos un saborizante de menta.As described above, the electrically heated cigarette 23 further comprises at least one flavoring-releasing additive. Flavors may be, for example, one or more of flavorings that include, but are not limited to, menthol, mint, such as peppermint and spearmint, chocolate, licorice, citrus flavors and other fruits, gamma octalactone, vanillin, ethyl vanillin, breath flavoring flavors, spice flavors such as cinnamon, methyl salicylate, linalool, bergamot essence, geranium essence, lemon essence, ginger essence, and tobacco flavor. In a preferred embodiment, the flavor is menthol and optionally at least one peppermint flavor.

Como se describio anteriormente, el aditivo liberador del saborizante puede tener diferentes estructuras y composiciones en el cigarrillo calentado electricamente. En una modalidad preferida, el aditivo liberador del saborizante tiene forma de perlas. Las perlas preferentemente encapsulan el saborizante y proporcionan una liberacion controlada del saborizante en el cigarrillo durante los ciclos de caladas.As described above, the flavoring-releasing additive may have different structures and compositions in the electrically heated cigarette. In a preferred embodiment, the flavor-releasing additive is in the form of pearls. The beads preferably encapsulate the flavor and provide a controlled release of the flavor in the cigarette during the puffing cycles.

Las perlas preferentemente comprenden al menos un material de encapsulado y al menos un saborizante. El material de encapsulado comprende preferentemente un aglutinante, que puede ser, por ejemplo, uno o mas de aceite de palma, goma konjac, xilitol, zema, hidroxipropilcelulosa, sorbitol, maltitol, y hidroxipropilmetilcelulosa. Otros materiales conocidos en la tecnica que pueden mejorar las caractensticas de formacion de la perla del material de encapsulado o aumentar su estabilidad pueden anadirse opcionalmente tambien en las perlas. En una modalidad preferida, las perlas tienen una composicion esencialmente homogenea en la que el saborizante se distribuye esencialmente de manera uniforme. Mediante tal estructura, el saborizante puede liberarse desde las perlas de manera mas uniforme durante la accion de fumar.The beads preferably comprise at least one encapsulation material and at least one flavor. The encapsulation material preferably comprises a binder, which may be, for example, one or more palm oil, konjac gum, xylitol, zema, hydroxypropylcellulose, sorbitol, maltitol, and hydroxypropyl methylcellulose. Other materials known in the art that can improve the pearl formation characteristics of the encapsulation material or increase its stability can optionally also be added to the pearls. In a preferred embodiment, the beads have an essentially homogenous composition in which the flavor is essentially evenly distributed. Through such structure, the flavoring can be released from the beads more evenly during the smoking action.

En dependencia de la composicion de las perlas, puede ajustarse la temperatura minima a la que las perlas se liberan del saborizante. Las perlas que comprende una o mas de los aglutinantes antes descritos tienen preferentemente una temperatura minima a la que se libera el saborizante de al menos aproximadamente 40 °C, tal como aproximadamente 40 °C a aproximadamente 150 °C. Las perlas protegen el saborizante de la exposicion a sustancias no deseadas en la atmosfera (por ejemplo, aire ambiente dentro de un empaque) y sustancias no deseadas en el cigarrillo, y preferentemente minimizan la liberacion y/o migracion del saborizante hasta que el aditivo liberador del saborizante se calienta hasta una temperatura lo suficientemente alta durante la accion de fumar del cigarrillo. Consecuentemente, se evita preferentemente que el saborizante esencialmente migre hacia dentro del cigarrillo, que reaccione con otras sustancias en el cigarrillo o con el ambiente, y desactive el sorbente presente en el cigarrillo.Depending on the composition of the beads, the minimum temperature at which the beads are released from the flavor can be adjusted. The beads comprising one or more of the binders described above preferably have a minimum temperature at which the flavor is released from at least about 40 ° C, such as about 40 ° C to about 150 ° C. The beads protect the flavoring from exposure to unwanted substances in the atmosphere (for example, ambient air inside a package) and unwanted substances in the cigarette, and preferably minimize the release and / or migration of the flavoring until the releasing additive of the flavor is heated to a sufficiently high temperature during the smoking action of the cigarette. Consequently, it is preferably prevented that the flavoring essentially migrates into the cigarette, reacts with other substances in the cigarette or with the environment, and deactivates the sorbent present in the cigarette.

Las perlas pueden tener cualquier forma conveniente, tales como diferentes formas regulares e irregulares, que incluyen redondo, cuadrado, rectangular, ovalado, otras formas poligonales, cilmdrico, fibroso, y similares. Las perlas pueden tener varios tamanos. Preferentemente, las perlas son microperlas que tienen un tamano maximo de partfcula de menos de aproximadamente 25 micras, y con mayor preferencia menos de aproximadamente 1 micra. Disminuir el tamano de las perlas puede proporcionar una liberacion controlada y mas homogenea del saborizante proporcionando un area superficial aumentada de las perlas.The beads may have any convenient shape, such as different regular and irregular shapes, including round, square, rectangular, oval, other polygonal shapes, cylindrical, fibrous, and the like. Pearls can have several sizes. Preferably, the beads are microbeads that have a maximum particle size of less than about 25 microns, and more preferably less than about 1 microns. Decreasing the size of the beads can provide a controlled and more homogeneous release of the flavor by providing an increased surface area of the beads.

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Las perlas pueden fabricarse por cualquier proceso adecuado que produce perlas que tienen la estructura, composicion y tamano adecuados. Por ejemplo, las perlas pueden fabricarse por extrusion, secado por atomizado, revestimiento, u otros procesos adecuados. En una modalidad preferida, las perlas se forman por la formacion de una solucion, dispersion o emulsion que contiene un aglutinante, saborizante y aditivos opcionales para formar las perlas, que pueden aislarse y secarse. Los procesos para preparar perlas que contienen un ingrediente activo, tal como un saborizante, se describen en la patente de Estados Unidos num. 6,325,859.Pearls can be manufactured by any suitable process that produces pearls that have the proper structure, composition and size. For example, the beads can be manufactured by extrusion, spray drying, coating, or other suitable processes. In a preferred embodiment, the beads are formed by the formation of a solution, dispersion or emulsion containing a binder, flavoring and optional additives to form the beads, which can be isolated and dried. Processes for preparing beads containing an active ingredient, such as a flavoring, are described in US Patent No. 6,325,859.

El cigarrillo calentado electricamente 23 comprende preferentemente una cantidad de las perlas que proporcionan una cantidad conveniente del saborizante en el cigarrillo. En una modalidad preferida, el cigarrillo calentado electricamente comprende, en base al peso total de tabaco en el cigarrillo, hasta aproximadamente 20%, y con mayor preferencia aproximadamente 10% a aproximadamente 15%, de las perlas. Por ejemplo, un cigarrillo que contiene 100 mg de tabaco preferentemente contiene hasta aproximadamente 20 mg de perlas. Las perlas pueden preferentemente comprender hasta aproximadamente 20% de saborizante. El cigarrillo puede comprender, por ejemplo, de aproximadamente 1 mg a aproximadamente 15 mg de saborizante.The electrically heated cigarette 23 preferably comprises an amount of the beads that provide a convenient amount of the flavor in the cigarette. In a preferred embodiment, the electrically heated cigarette comprises, based on the total weight of tobacco in the cigarette, up to about 20%, and more preferably about 10% to about 15%, of the beads. For example, a cigarette containing 100 mg of tobacco preferably contains up to about 20 mg of pearls. The beads may preferably comprise up to about 20% flavor. The cigarette may comprise, for example, from about 1 mg to about 15 mg of flavoring.

En una modalidad preferida, las perlas se disponen en al menos una localizacion en el cigarrillo calentado electricamente 23 que alcanza al menos la temperatura minima a la que se libera el saborizante de las perlas y entra en el cigarrillo durante la accion de fumar. Por ejemplo, las perlas pueden disponerse en la varilla de tabaco 60, en el vado 90 entre el tapon de tabaco 80 y el filtro de flujo libre 74, sobre una o mas superficies del filtro de flujo libre 74, sobre o dentro de la esterilla 66, y/o sobre o dentro de la envoltura interna 84 que rodea el tapon de tabaco 80.In a preferred embodiment, the beads are arranged in at least one location in the electrically heated cigarette 23 that reaches at least the minimum temperature at which the flavoring of the beads is released and enters the cigarette during the smoking action. For example, the beads may be arranged on the tobacco rod 60, in the ford 90 between the tobacco plug 80 and the free flow filter 74, on one or more surfaces of the free flow filter 74, on or inside the mat 66, and / or on or inside the inner envelope 84 surrounding the tobacco plug 80.

En otra modalidad preferida, pueden incorporarse diferentes composiciones de perlas que tienen dos o mas temperaturas mmimas de liberacion del saborizante diferentes en dos o mas localizaciones en un cigarrillo calentado electricamente que alcanza diferentes temperaturas en tales localizaciones durante la accion de fumar. Por ejemplo, las perlas que tienen una primera temperatura de liberacion del saborizante puede localizarse en una primera localizacion en el cigarrillo que alcanza la primera temperatura de liberacion del saborizante, y las perlas que tienen una segunda temperatura de liberacion del saborizante mayor que la primera temperatura de liberacion del saborizante puede localizarse en una segunda localizacion en el cigarrillo que alcanza la segunda temperatura de liberacion del saborizante. Por ejemplo, las dos temperaturas de liberacion del saborizante pueden variar por hasta aproximadamente 100 °C. Por ejemplo, estas dos temperaturas pueden variar por hasta aproximadamente 10 °C, 20 °C, 30 °C, 40 °C, 50 °C, 60 °C, 70 °C, 80 °C, 90 °C, o 100 °C.In another preferred embodiment, different pearl compositions can be incorporated that have two or more different minimum flavor release temperatures at two or more locations in an electrically heated cigarette that reaches different temperatures at such locations during the smoking action. For example, pearls that have a first flavor release temperature can be located at a first location in the cigarette that reaches the first flavor release temperature, and pearls that have a second flavor release temperature greater than the first temperature The release of the flavor can be located in a second location in the cigarette that reaches the second temperature of release of the flavor. For example, the two flavor release temperatures may vary by up to about 100 ° C. For example, these two temperatures may vary by up to about 10 ° C, 20 ° C, 30 ° C, 40 ° C, 50 ° C, 60 ° C, 70 ° C, 80 ° C, 90 ° C, or 100 ° C.

En otra modalidad preferida, el aditivo liberador del saborizante incluye una pelfcula. La pelfcula preferentemente encapsula el saborizante y permite que la liberacion controlada mediante la temperatura del saborizante en el cigarrillo durante la accion de fumar. En una modalidad preferida, la pelfcula comprende un peso de hasta 20%, con mayor preferencia aproximadamente 10% a aproximadamente 15%, del saborizante. En una modalidad preferida, la pelfcula encapsula mentol y opcionalmente menta tambien.In another preferred embodiment, the flavor-releasing additive includes a film. The film preferably encapsulates the flavor and allows the temperature controlled release of the flavor in the cigarette during smoking. In a preferred embodiment, the film comprises a weight of up to 20%, more preferably about 10% to about 15%, of the flavor. In a preferred embodiment, the film encapsulates menthol and optionally mint as well.

El aditivo liberador del saborizante tipo pelfcula comprende preferentemente al menos un material de encapsulado y al menos un saborizante. El material de encapsulado comprende preferentemente un aglutinante, que puede ser, por ejemplo, uno o mas de carragenano, gelatina, agar, goma gellan, goma arabica, goma guar, goma xantana, y pectina. Otros materiales conocidos en la tecnica que pueden mejorar las caractensticas de formacion de la pelfcula del material de encapsulado o aumentar su estabilidad pueden opcionalmente anadirse a la pelfcula. En una modalidad preferida, la pelfcula tiene una composicion esencialmente homogenea en la que saborizante se distribuye esencialmente de manera uniforme. Mediante tal estructura, el saborizante puede liberarse desde la pelfcula de manera mas conveniente durante la accion de fumar. El material de encapsulado tipo pelfcula proporciona una barrera para la liberacion del saborizante.The film-type flavoring-releasing additive preferably comprises at least one encapsulation material and at least one flavoring. The encapsulation material preferably comprises a binder, which may be, for example, one or more of carrageenan, gelatin, agar, gellan gum, arabic gum, guar gum, xanthan gum, and pectin. Other materials known in the art that can improve the film formation characteristics of the encapsulation material or increase its stability may optionally be added to the film. In a preferred embodiment, the film has an essentially homogenous composition in which flavor is essentially uniformly distributed. Through such a structure, the flavoring can be released from the film more conveniently during the smoking action. The film-type encapsulation material provides a barrier to the release of the flavor.

En dependencia de la composicion de la pelfcula, la temperatura minima a la que la pelfcula libera el saborizante puede ajustarse/seleccionarse. Una pelfcula que comprende uno o mas de los aglutinantes antes descritos tiene preferentemente una temperatura minima a la que se libera el saborizante de al menos aproximadamente 50 °C, tal como hasta aproximadamente 120 °C. La pelfcula protege el saborizante de la exposicion a sustancias no deseadas en el cigarrillo y en la atmosfera y esencialmente evita que el saborizante se libere hasta que la pelfcula se calienta a la temperatura de liberacion del saborizante durante la accion de fumar del cigarrillo.Depending on the composition of the film, the minimum temperature at which the film releases the flavor can be adjusted / selected. A film comprising one or more of the binders described above preferably has a minimum temperature at which the flavor is released at least about 50 ° C, such as up to about 120 ° C. The film protects the flavoring from exposure to unwanted substances in the cigarette and in the atmosphere and essentially prevents the flavoring from being released until the film is heated to the flavor release temperature during the smoking action of the cigarette.

La pelfcula puede aplicarse a uno o mas componentes del cigarrillo calentado electricamente como un revestimiento lfquido, que se seca para formar una pelfcula. Las dimensiones de la pelfcula seca no estan limitadas. Preferentemente, la pelfcula seca tiene un grosor maximo de aproximadamente 50 micras a aproximadamente 150 micras, y con mayor preferencia aproximadamente 75 micras.The film can be applied to one or more components of the electrically heated cigarette as a liquid coating, which is dried to form a film. The dimensions of the dry film are not limited. Preferably, the dried film has a maximum thickness of about 50 microns to about 150 microns, and more preferably about 75 microns.

La pelfcula puede fabricarse por cualquier proceso adecuado que produce una pelfcula que tiene la estructura, composicion y dimensiones convenientes. Por ejemplo, la pelfcula puede aplicarse mediante un proceso de revestimiento, tal como revestimiento por atomizado, un proceso de esmaltado, deposicion electrostatica, aplicacion por rueda de impresion, impresion por huecograbado, aplicacion por chorro de tinta, y similares. En una modalidad preferida, se prepara una emulsion, suspension o lechada que comprende el aglutinante, saborizante, y aditivos opcionales y luego se aplica como un revestimiento a una o mas superficies seleccionadas de uno o mas componentes seleccionados del cigarrillo calentado electricamente. El revestimiento se seca preferentemente paraThe film can be manufactured by any suitable process that produces a film having the structure, composition and convenient dimensions. For example, the film can be applied by a coating process, such as spray coating, an enamelling process, electrostatic deposition, printing wheel application, gravure printing, inkjet application, and the like. In a preferred embodiment, an emulsion, suspension or slurry comprising the binder, flavoring, and optional additives is prepared and then applied as a coating to one or more selected surfaces of one or more components selected from the electrically heated cigarette. The coating is preferably dried to

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retirar el agua y/u otros solventes y formar una pelfcula solida que tiene dimensiones convenientes. Los procesos ilustrativos que pueden usarse para preparar las pelfculas se describen en las patentes de Estados Unidos nums. 3,006,347 y de propiedad mancomunada 4,715,390.remove water and / or other solvents and form a solid film that has convenient dimensions. The illustrative processes that can be used to prepare the films are described in US Pat. Nos. 3,006,347 and joint ownership 4,715,390.

El cigarrillo calentado electricamente 23 comprende preferentemente una cantidad de la pelfcula que libera una cantidad conveniente del saborizante durante la accion de fumar del cigarrillo. En una modalidad preferida, el cigarrillo calentado electricamente comprende, en base al peso total de tabaco en el cigarrillo al que se aplica la pelfcula, hasta aproximadamente 20%, y con mayor preferencia aproximadamente 10% a aproximadamente 15%, de la pelfcula. Por ejemplo, si la pelfcula se aplica a la esterilla, el peso de tabaco contenido en la esterilla preferentemente es el peso base para la cantidad de la pelfcula. Si la pelfcula se aplica a la esterilla y al tapon de tabaco, el peso total de tabaco contenido en la esterilla y el tapon de tabaco preferentemente es el peso base para la cantidad de pelfcula aplicada en el cigarrillo. Preferentemente, el peso de tabaco contenido en la esterilla es el peso base para la cantidad de pelfcula aplicada a la esterilla, y el peso de tabaco contenido en el tapon de tabaco es el peso base para la cantidad de pelfcula aplicada al tapon de tabaco. En una modalidad preferida, el cigarrillo puede comprender de aproximadamente 1 mg a aproximadamente 15 mg de saborizante.The electrically heated cigarette 23 preferably comprises an amount of the film that releases a convenient amount of the flavor during the smoking action of the cigarette. In a preferred embodiment, the electrically heated cigarette comprises, based on the total weight of tobacco in the cigarette to which the film is applied, up to about 20%, and more preferably about 10% to about 15%, of the film. For example, if the film is applied to the mat, the weight of tobacco contained in the mat is preferably the basis weight for the amount of the film. If the film is applied to the mat and the tobacco plug, the total weight of tobacco contained in the mat and the tobacco plug is preferably the basis weight for the amount of film applied in the cigarette. Preferably, the weight of tobacco contained in the mat is the basis weight for the amount of film applied to the mat, and the weight of tobacco contained in the tobacco plug is the basis weight for the amount of film applied to the tobacco plug. In a preferred embodiment, the cigarette may comprise from about 1 mg to about 15 mg of flavor.

En una modalidad preferida, la pelfcula se dispone en al menos una localizacion en el cigarrillo calentado electricamente 23 que alcanza al menos la temperatura de liberacion del saborizante. Por ejemplo, la pelfcula puede disponerse sobre el tapon de tabaco 80, sobre la envoltura interna 84 que rodea el tapon de tabaco 80, sobre la esterilla 66, y/o sobre la envoltura 71 que rodea la esterilla. Cuando la pelfcula se dispone sobre la envoltura interna 84 y/o la envoltura 71, el peso de la envoltura interna 84 y/o la envoltura 71 es el peso base para la cantidad de la pelfcula. En otra modalidad preferida, la pelfcula puede preformarse, cortarse e incorporarse en el tapon de tabaco 80, y/u otras localizaciones seleccionadas que alcanza la temperatura de liberacion del saborizante.In a preferred embodiment, the film is arranged in at least one location in the electrically heated cigarette 23 that reaches at least the flavor release temperature. For example, the film may be disposed on the tobacco plug 80, on the inner envelope 84 surrounding the tobacco plug 80, on the mat 66, and / or on the envelope 71 surrounding the mat. When the film is disposed on the inner wrap 84 and / or the wrap 71, the weight of the inner wrap 84 and / or the wrap 71 is the basis weight for the amount of the film. In another preferred embodiment, the film can be preformed, cut and incorporated into the tobacco plug 80, and / or other selected locations that reach the flavor release temperature.

En otra modalidad preferida, las pelfculas saborizadas diferentes que tienen dos o mas temperaturas mmimas de liberacion del saborizante diferentes pueden incorporarse en diferentes localizaciones en un cigarrillo calentado electricamente, donde durante la accion de fumar del cigarrillo, las temperaturas en las diferentes localizaciones exceden las temperaturas de liberacion minima de las diferentes pelfculas.In another preferred embodiment, different flavored films having two or more different minimum flavor release temperatures may be incorporated into different locations in an electrically heated cigarette, where during the smoking action of the cigarette, temperatures at different locations exceed temperatures of minimum release of the different films.

En otra modalidad preferida, el aditivo liberador del saborizante es un complejo de inclusion. El complejo de inclusion comprende una “molecula hospedera” y el saborizante es la “molecula huesped” en el complejo de inclusion. El complejo de inclusion proporciona liberacion controlada del saborizante en el cigarrillo durante la accion de fumar. En una modalidad preferida, el saborizante es un saborizante organico lipofflico, que se concentra preferentemente dentro de una cavidad hidrofobica de la molecula hospedera. Los sabores y saborizantes adecuados incluyen, pero sin limitarse a, mentol, menta, tal como hierbabuena y menta verde, chocolate, regaliz, sabores de cftricos y otras frutas, gamma octalactona, vainillina, etil vainillina, sabores aromatizadores del aliento, sabores de especias tales como canela, salicilato de metilo, linalool, esencia de bergamota, esencia de geranio, esencia de limon, esencia de jengibre, y sabor de tabaco. En una modalidad preferida, el saborizante incluye vainilla y gamma octalactona. En una modalidad preferida, el complejo de inclusion comprende, por peso, hasta aproximadamente 20%, con mayor preferencia de aproximadamente 10% a aproximadamente 15%, del saborizante.In another preferred embodiment, the flavor-releasing additive is an inclusion complex. The inclusion complex comprises a "host molecule" and the flavor is the "host molecule" in the inclusion complex. The inclusion complex provides controlled release of the flavor in the cigarette during smoking. In a preferred embodiment, the flavor is an organic lipophilic flavor, which is preferably concentrated within a hydrophobic cavity of the host molecule. Suitable flavors and flavorings include, but are not limited to, menthol, mint, such as peppermint and spearmint, chocolate, licorice, flavors of citrus and other fruits, gamma octalactone, vanillin, ethyl vanillin, breath aromatizing flavors, spice flavors such as cinnamon, methyl salicylate, linalool, bergamot essence, geranium essence, lemon essence, ginger essence, and tobacco flavor. In a preferred embodiment, the flavor includes vanilla and gamma octalactone. In a preferred embodiment, the inclusion complex comprises, by weight, up to about 20%, more preferably from about 10% to about 15%, of the flavor.

La molecula hospedera del complejo de inclusion es preferentemente una ciclodextrina. Las ciclodextrinas son oligosacaridos dclicos que incluyen subunidades de glucopiranosa, como se describe, por ejemplo, en la patente de Estados Unidos num. 3,426,011 y en la patente de Estados Unidos de propiedad mancomunada num. 5,144,964. El complejo de inclusion se forma cuando un material saborizante se mezcla con una ciclodextrina seleccionada en solucion. El saborizante reside dentro de la estructura anular de la ciclodextrina. Las ciclodextrinas y el saborizante tfpicamente se coprecipitan, se filtra y se secan.The host molecule of the inclusion complex is preferably a cyclodextrin. Cyclodextrins are cyclic oligosaccharides that include glucopyranose subunits, as described, for example, in US Pat. 3,426,011 and in United States patent joint ownership num. 5,144,964. The inclusion complex is formed when a flavoring material is mixed with a cyclodextrin selected in solution. The flavoring resides within the ring structure of the cyclodextrin. Cyclodextrins and flavor are typically coprecipitated, filtered and dried.

La alfa-ciclodextrina, beta-ciclodextrina y gamma-ciclodextrina incluyen seis, siete y ocho subunidades de glucopiranosa, respectivamente. En una modalidad preferida, el complejo de inclusion comprende beta-ciclodextrina, que puede acomodar convenientemente una amplia variedad de moleculas huespedes y esta facilmente disponible. La beta-ciclodextrina tiene una estructura anular de las subunidades unidas con una configuracion de anillo tridimensional que incluye una cavidad hidrofobica con un diametro de 7,5 A y bordes hidrofflicos superior e inferior.Alpha-cyclodextrin, beta-cyclodextrin and gamma-cyclodextrin include six, seven and eight glucopyranose subunits, respectively. In a preferred embodiment, the inclusion complex comprises beta-cyclodextrin, which can conveniently accommodate a wide variety of host molecules and is readily available. The beta-cyclodextrin has an annular structure of the joined subunits with a three-dimensional ring configuration that includes a hydrophobic cavity with a diameter of 7.5 A and upper and lower hydrophilic edges.

La temperatura minima a la que el complejo de inclusion que comprende una ciclodextrina libera el saborizante es preferentemente al menos aproximadamente 60 °C, tal como de aproximadamente 60 °C a aproximadamente 125 °C. Incorporando el saborizante en el complejo de inclusion, el saborizante puede protegerse de la exposicion a sustancias no deseadas en el cigarrillo y la liberacion a la atmosfera y/o migracion del saborizante se minimiza preferentemente hasta que el aditivo liberador del saborizante se calienta a la temperatura de liberacion del saborizante durante la accion de fumar del cigarrillo.The minimum temperature at which the inclusion complex comprising a cyclodextrin releases the flavor is preferably at least about 60 ° C, such as from about 60 ° C to about 125 ° C. By incorporating the flavor in the inclusion complex, the flavor can be protected from exposure to unwanted substances in the cigarette and the release to the atmosphere and / or migration of the flavor is preferably minimized until the flavor-releasing additive is heated to the temperature of release of the flavor during the smoking action of the cigarette.

El complejo de inclusion tiene preferentemente forma de polvo. El polvo tiene preferentemente un tamano maximo de menos de aproximadamente 200 micras.The inclusion complex preferably has a powder form. The powder preferably has a maximum size of less than about 200 microns.

El complejo de inclusion puede hacerse formando una solucion acuosa de beta-ciclodextrina y el saborizante. El complejo de inclusion puede recuperarse de una solucion en forma de polvo. Sin embargo, luna solucion puede aplicarse directamente a una o mas localizaciones seleccionadas de uno o mas componentes del cigarrillo calentadoThe inclusion complex can be made by forming an aqueous solution of beta-cyclodextrin and the flavoring. The inclusion complex can be recovered from a powder solution. However, moon solution can be applied directly to one or more selected locations of one or more components of the heated cigarette

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electricamente por cualquier proceso adecuado. El polvo del complejo de inclusion puede usarse alternativamente para formar una solucion o una suspension. El complejo de inclusion puede aplicarse por un proceso de revestimiento, tal como revestimiento en suspension, atomizado, un proceso de esmaltado, deposicion electrostatica, aplicacion por rueda de impresion, impresion por huecograbado, aplicacion de chorro de tinta, y similares. En una modalidad preferida, una solucion, suspension o lechada que comprende la ciclodextrina y el saborizante se prepara y se aplica como un revestimiento a superficies seleccionadas de los componentes seleccionados del cigarrillo calentado electricamente. Los procesos ilustrativos que pueden usarse para aplicar el complejo de inclusion en el cigarrillo calentado electricamente se describen en la patente de Estados Unidos de propiedad mancomunada num. 5,144,964.electrically by any suitable process. The powder of the inclusion complex can alternatively be used to form a solution or a suspension. The inclusion complex can be applied by a coating process, such as suspension coating, atomizing, an enamelling process, electrostatic deposition, printing wheel application, gravure printing, inkjet application, and the like. In a preferred embodiment, a solution, suspension or slurry comprising the cyclodextrin and the flavor is prepared and applied as a coating to selected surfaces of the selected components of the electrically heated cigarette. Illustrative processes that can be used to apply the inclusion complex in the electrically heated cigarette are described in United States patent jointly owned num. 5,144,964.

El cigarrillo calentado electricamente 23 comprende preferentemente una cantidad del complejo de inclusion que proporciona una cantidad conveniente del saborizante en el cigarrillo. En una modalidad preferida, el cigarrillo calentado electricamente comprende, en base al peso de la envoltura o esterilla, hasta aproximadamente 15%, y con mayor preferencia menos de aproximadamente 8%, del complejo de inclusion. Por ejemplo, si el complejo de inclusion se aplica a la esterilla, entonces el peso de la esterilla preferentemente es el peso base para la cantidad del complejo de inclusion aplicada a la esterilla. Si el complejo de inclusion se aplica a la esterilla y a la envoltura, entonces el peso total de la esterilla y la envoltura preferentemente es el peso base para la cantidad del complejo de inclusion aplicada a la esterilla y a la envoltura. El por ciento en peso del complejo de inclusion que se aplica a la esterilla y/o a la envoltura puede ser el mismo o diferente. En una modalidad preferida, el cigarrillo comprende de aproximadamente 1 mg a aproximadamente 50 mg de saborizante.The electrically heated cigarette 23 preferably comprises an amount of the inclusion complex that provides a convenient amount of the flavor in the cigarette. In a preferred embodiment, the electrically heated cigarette comprises, based on the weight of the wrap or mat, up to about 15%, and more preferably less than about 8%, of the inclusion complex. For example, if the inclusion complex is applied to the mat, then the weight of the mat is preferably the basis weight for the amount of the inclusion complex applied to the mat. If the inclusion complex is applied to the mat and the envelope, then the total weight of the mat and the envelope is preferably the basis weight for the amount of the inclusion complex applied to the mat and the envelope. The weight percent of the inclusion complex that is applied to the mat and / or the envelope may be the same or different. In a preferred embodiment, the cigarette comprises about 1 mg to about 50 mg of flavor.

En una modalidad preferida, el complejo de inclusion se dispone en al menos una localizacion en el cigarrillo calentado electricamente 23 que alcanza al menos la temperatura minima a la que se libera el saborizante del complejo de inclusion en el cigarrillo durante la accion de fumar. Por ejemplo, el complejo de inclusion puede disponerse sobre la envoltura interna 84, la esterilla 66, y/o la envoltura 71.In a preferred embodiment, the inclusion complex is arranged in at least one location in the electrically heated cigarette 23 that reaches at least the minimum temperature at which the flavor of the inclusion complex in the cigarette is released during the smoking action. For example, the inclusion complex can be arranged on the inner envelope 84, the mat 66, and / or the envelope 71.

En otra modalidad preferida, el cigarrillo calentado electricamente comprende dos o mas tipos diferentes de aditivos liberadores del saborizante, por ejemplo, una perla y una pelfcula y/o un complejo de inclusion, con cada aditivo liberador del saborizante que tiene una temperatura de liberacion del saborizante diferente. Los aditivos liberadores del saborizante diferentes pueden incorporarse en dos o mas localizaciones en el mismo cigarrillo calentado electricamente que alcanza diferentes temperaturas durante la accion de fumar para proporcionar liberacion controlada del saborizante adicional durante la accion de fumar.In another preferred embodiment, the electrically heated cigarette comprises two or more different types of flavor-releasing additives, for example, a pearl and a film and / or an inclusion complex, with each flavor-releasing additive having a temperature of release of the flavor. different flavoring Different flavoring-releasing additives may be incorporated into two or more locations in the same electrically heated cigarette that reaches different temperatures during the smoking action to provide controlled release of the additional flavor during the smoking action.

Las Figs. 4 y 5 ilustran una modalidad preferida de un sistema electrico para fumar en el que pueden usarse las modalidades preferidas del cigarrillo calentado electricamente. Sin embargo, debe entenderse que las modalidades preferidas del cigarrillo calentado electricamente pueden usarse en sistemas electricos para fumar que tienen otras construcciones, tal como las que tienen construcciones diferentes del encendedor energizado electricamente. El sistema electrico para fumar 21 incluye un cigarrillo calentado electricamente 23 y un encendedor reusable 25. El cigarrillo 23 se construye para insertarse dentro de y retirarse de un receptor de cigarrillos 27, que se abre en una porcion de extremo frontal 29 del encendedor 25. Una vez que el cigarrillo 23 se inserta, el sistema para fumar 21 se usa de manera similar a la mayona de los cigarrillos tradicionales, pero sin encender o prender el cigarrillo 23. El cigarrillo 23 se desecha despues de la accion de fumar.Figs. 4 and 5 illustrate a preferred embodiment of an electric smoking system in which preferred embodiments of the electrically heated cigarette can be used. However, it should be understood that preferred embodiments of the electrically heated cigarette can be used in electric smoking systems that have other constructions, such as those with constructions other than the electrically energized lighter. The electric smoking system 21 includes an electrically heated cigarette 23 and a reusable lighter 25. The cigarette 23 is constructed to be inserted into and removed from a cigarette receiver 27, which opens at a front end portion 29 of the lighter 25. Once the cigarette 23 is inserted, the smoking system 21 is used in a manner similar to that of traditional cigarettes, but without lighting or lighting the cigarette 23. The cigarette 23 is discarded after the smoking action.

Preferentemente, cada cigarrillo 23 proporciona un total de al menos ocho caladas (ciclos de caladas) por cigarrillo. Sin embargo, el cigarrillo 23 puede construirse para proporcionar un numero total mayor o menor de caladas disponibles.Preferably, each cigarette 23 provides a total of at least eight puffs (puff cycles) per cigarette. However, cigarette 23 can be constructed to provide a greater or lesser total number of openings available.

El encendedor 25 incluye un alojamiento 31 que tiene porciones de alojamiento frontales y trasera 33 y 35, respectivamente. Una fuente de energfa 35a, tal como una o mas batenas, se localiza dentro de la porcion de alojamiento trasera 35 y suministra energfa a un elemento calentador 39. El elemento calentador 39 incluye una pluralidad de elementos de calentamiento electricamente resistivos 37 (Fig. 6). Los elementos de calentamiento 37 se disponen dentro de la porcion de alojamiento frontal 33 para recibir de manera deslizante el cigarrillo 23. Un tope 183 localizado en el elemento calentador 39 define un extremo terminal del receptor de cigarrillos 27 (Fig. 2).The lighter 25 includes a housing 31 having front and rear housing portions 33 and 35, respectively. An energy source 35a, such as one or more bats, is located within the rear housing portion 35 and supplies power to a heating element 39. The heating element 39 includes a plurality of electrically resistive heating elements 37 (Fig. 6 ). The heating elements 37 are disposed within the front housing portion 33 to slidably receive the cigarette 23. A stop 183 located in the heating element 39 defines a terminal end of the cigarette receiver 27 (Fig. 2).

El circuito de control 41 en la porcion de alojamiento frontal 33 establece de manera selectiva una comunicacion electrica entre la fuente de energfa 35a y uno o mas de los elementos de calentamiento 37 durante cada ciclo de calada.The control circuit 41 in the front housing portion 33 selectively establishes an electrical communication between the power source 35a and one or more of the heating elements 37 during each draft cycle.

La porcion de alojamiento trasera 35 del alojamiento 31 se construye para abrirse y cerrarse para facilitar el reemplazo de la fuente de energfa 35a. Preferentemente, la porcion de alojamiento frontal 33 se une de manera que puede retirarse a la porcion de alojamiento trasera 35 por acoplamiento mecanico.The rear housing portion 35 of the housing 31 is constructed to open and close to facilitate the replacement of the energy source 35a. Preferably, the front housing portion 33 is attached so that it can be removed to the rear housing portion 35 by mechanical coupling.

Con referencia a la Fig. 5, en una modalidad preferida, el circuito de control 41 se activa por un sensor accionado por calada 45, que es sensible a cada cambio de presion o cambio en la velocidad de flujo de aire que ocurre despues de la iniciacion de una aspiracion en el cigarrillo 23 por un fumador. El sensor accionado por calada 45 se localiza preferentemente dentro de la porcion de alojamiento frontal 33 del encendedor 25 y se comunica con un espacio dentro del elemento calentador 39 mediante un puerto 45a que se extiende a traves de una porcion deWith reference to Fig. 5, in a preferred embodiment, the control circuit 41 is activated by a shed driven sensor 45, which is sensitive to each change in pressure or change in the air flow rate that occurs after the initiation of an aspiration in cigarette 23 by a smoker. The shed actuated sensor 45 is preferably located within the front housing portion 33 of the lighter 25 and communicates with a space within the heating element 39 via a port 45a that extends through a portion of

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pared lateral 182 del elemento calentador 39. Una vez que se acciona por el sensor 45, el circuito de control 41 dirige la corriente electrica a uno de los elementos de calentamiento 37 apropiados.side wall 182 of the heating element 39. Once activated by the sensor 45, the control circuit 41 directs the electric current to one of the appropriate heating elements 37.

En una modalidad preferida, un indicador 51 se proporciona en una localizacion a lo largo del exterior del encendedor 25 para indicar visualmente el numero de caladas restantes en un cigarrillo 23, u otra informacion seleccionada. El indicador 51 incluye preferentemente una pantalla de cristal lfquido. En una modalidad preferida, el indicador 51 muestra una imagen seleccionada cuando un detector de cigarrillos 57 detecta la presencia de un cigarrillo en el elemento calentador 39. El detector 57 puede comprender cualquier disposicion que sensa la presencia de un cigarrillo calentado electricamente. Por ejemplo, el detector puede comprender una bobina inductiva 1102 adyacente al receptor de cigarrillos 27 del elemento calentador 39 y los conductores electricos 1104 que comunican la bobina 1102 con un circuito oscilador dentro del circuito de control 41. En tales casos, el cigarrillo 23 puede incluir un elemento metalico (no se muestra), que puede afectar la inductancia del enrollado de la bobina 1102 de manera que cuando se inserte un cigarrillo adecuado 23 en el receptor 27, el detector 57 genera una senal al circuito 41 que indica que el cigarrillo esta presente. El circuito de control 41 proporciona una senal al indicador 51. Cuando el cigarrillo 23 se retira del encendedor 25, el detector de cigarrillos 57 ya no detecta la presencia de un cigarrillo 23 y el indicador 51 se apaga.In a preferred embodiment, an indicator 51 is provided at a location along the outside of the lighter 25 to visually indicate the number of puffs remaining on a cigarette 23, or other selected information. The indicator 51 preferably includes a liquid crystal display. In a preferred embodiment, the indicator 51 shows a selected image when a cigarette detector 57 detects the presence of a cigarette in the heating element 39. The detector 57 can comprise any arrangement that senses the presence of an electrically heated cigarette. For example, the detector may comprise an inductive coil 1102 adjacent to the cigarette receiver 27 of the heating element 39 and the electrical conductors 1104 that communicate the coil 1102 with an oscillating circuit within the control circuit 41. In such cases, the cigarette 23 may include a metal element (not shown), which can affect the coil inductance of coil 1102 so that when a suitable cigarette 23 is inserted into the receiver 27, the detector 57 generates a signal to the circuit 41 indicating that the cigarette is present The control circuit 41 provides a signal to the indicator 51. When the cigarette 23 is removed from the lighter 25, the cigarette detector 57 no longer detects the presence of a cigarette 23 and the indicator 51 goes out.

El elemento calentador 39 soporta un cigarrillo insertado 23 en una relacion de fijacion con los elementos de calentamiento 37 de manera que los elementos de calentamiento 37 se posicionan a lo largo del cigarrillo 23 en aproximadamente la misma localizacion para cada cigarrillo insertado recientemente 23. En una modalidad preferida, el elemento calentador 39 incluye ocho elementos calentadores paralelos entre sf 37, que se disponen aproximadamente de manera concentrica al eje de simetna del receptor de cigarrillos 27. A la localizacion donde cada elementos de calentamiento 37 toca un cigarrillo totalmente insertado 23 se le denomina en la presente descripcion como la zona de marca del calentador o zona de quemado 42.The heating element 39 supports an inserted cigarette 23 in a fixing relationship with the heating elements 37 so that the heating elements 37 are positioned along the cigarette 23 in approximately the same location for each recently inserted cigarette 23. In a preferred embodiment, the heating element 39 includes eight heating elements parallel to each other 37, which are arranged approximately concentrically to the symmetry axis of the cigarette receiver 27. At the location where each heating elements 37 touches a fully inserted cigarette 23, In the present description it is referred to as the heater marking zone or burn zone 42.

Como se muestra en la Fig. 6, los elementos de calentamiento 37 incluyen preferentemente cada uno al menos un primer y segundo miembros de serpentina alargados 53a y 53b que se unen en la punta 54. Las porciones de calentamiento 53a, 53b y 54 forman una lamina de calentamiento 120. Las puntas 54 son adyacentes a la abertura 55 del receptor de cigarrillos 27. Los extremos opuestos 56a y 56b de cada uno de los elementos de calentamiento 37 se conectan electricamente a los polos opuestos de la fuente de energfa 35a que se establecen de manera selectiva por el controlador 41. Una trayectoria electrica a traves de cada uno de los elementos de calentamiento 37 se establece, respectivamente, a traves de una patilla terminal 104, una conexion 121 entre la patilla 104 y una porcion de extremo libre 56a de uno de los miembros de serpentina 53a, a traves de al menos una porcion de la patilla 54 al otro miembro de serpentina 53b y su porcion de extremo 56b. Preferentemente, un anillo de conexion 110 proporciona una conexion electrica comun para cada una de las porciones de extremo 56b. En una modalidad preferida, el anillo 110 se conecta al terminal positivo de la fuente de energfa 35a a traves de una conexion 123 entre el anillo 110 y una patilla 105.As shown in Fig. 6, the heating elements 37 preferably each include at least one first and second elongated serpentine members 53a and 53b which are joined at the tip 54. The heating portions 53a, 53b and 54 form a heating sheet 120. The tips 54 are adjacent to the opening 55 of the cigarette receiver 27. The opposite ends 56a and 56b of each of the heating elements 37 are electrically connected to the opposite poles of the energy source 35a that are selectively established by the controller 41. An electrical path through each of the heating elements 37 is established, respectively, through a terminal pin 104, a connection 121 between the pin 104 and a free end portion 56a from one of the serpentine members 53a, through at least one portion of the pin 54 to the other serpentine member 53b and its end portion 56b. Preferably, a connection ring 110 provides a common electrical connection for each of the end portions 56b. In a preferred embodiment, the ring 110 is connected to the positive terminal of the power source 35a through a connection 123 between the ring 110 and a pin 105.

Preferentemente, los elementos de calentamiento 37 se energizan de manera individual por la fuente de energfa 35a bajo el control del circuito de control 41 para calentar el cigarrillo 23 preferentemente ocho veces en localizaciones separadas aproximadamente en la periferia del cigarrillo 23. El calentamiento ofrece ocho caladas del cigarrillo 23, que se logra comunmente con la accion de fumar de un cigarrillo tradicional. Puede preferirse activar mas de uno de los elementos de calentamiento simultaneamente para uno o mas o todas las caladas.Preferably, the heating elements 37 are energized individually by the power source 35a under the control of the control circuit 41 to heat the cigarette 23 preferably eight times in locations separated approximately at the periphery of the cigarette 23. The heating offers eight puffs. of cigarette 23, which is commonly achieved with the smoking action of a traditional cigarette. It may be preferred to activate more than one of the heating elements simultaneously for one or more or all of the puffs.

El elemento calentador 39 incluye un puerto de entrada de aire 1200 a traves del cual se aspira el aire hacia dentro del encendedor. Una cafda de presion se induce una vez que el aire entra en el encendedor de manera que el sensor de caladas 45 esta operativo para reconocer la iniciacion de una calada. El intervalo de cafda de presion inducida se selecciona de manera que esta dentro del intervalo de cafda de presion detectable por el sensor de presion 45.The heating element 39 includes an air inlet port 1200 through which air is drawn into the lighter. A pressure cup is induced once the air enters the lighter so that the draft sensor 45 is operative to recognize the initiation of a draft. The induced pressure coffee range is selected such that it is within the pressure coffee range detectable by the pressure sensor 45.

La longitud del tapon de tabaco 80 y su posicion relativa a lo largo de la varilla de tabaco 60 se selecciona preferentemente en base a la construccion y localizacion de los elementos de calentamiento 37 del sistema electrico para fumar 21. Cuando un cigarrillo 23 se posiciona apropiadamente contra un tope 182 (Fig. 2) dentro del encendedor del sistema electrico para fumar, una porcion de cada uno de los elementos de calentamiento entra en contacto con la varilla de tabaco 60. A esta region de contacto se le denomina como una marca de calentamiento 95, la cual es la region de la varilla de tabaco 60 donde se espera que los elementos de calentamiento 37 alcancen una temperatura lo suficientemente alta para permitir la accion de fumar del cigarrillo sin combustion del papel para cigarrillo, esterilla o tabaco. La marca de calentamiento 95 puede localizarse consistentemente a lo largo de la varilla de tabaco 60 a la misma distancia predeterminada 96 desde el extremo libre 78 de la varilla de tabaco 60 para cada cigarrillo 23 que se inserta totalmente dentro del encendedor 25.The length of the tobacco plug 80 and its relative position along the tobacco rod 60 is preferably selected based on the construction and location of the heating elements 37 of the electric smoking system 21. When a cigarette 23 is properly positioned Against a stop 182 (Fig. 2) inside the lighter of the electric smoking system, a portion of each of the heating elements comes into contact with the tobacco rod 60. This contact region is referred to as a mark of heating 95, which is the region of the tobacco rod 60 where the heating elements 37 are expected to reach a temperature high enough to allow smoking of the cigarette without combustion of the cigarette, mat or tobacco paper. The heating mark 95 can be consistently located along the tobacco rod 60 at the same predetermined distance 96 from the free end 78 of the tobacco rod 60 for each cigarette 23 that is fully inserted into the lighter 25.

Preferentemente, la longitud del tapon de tabaco 80 del cigarrillo 23, la longitud de la marca de calentamiento 95, y la distancia entre la marca de calentamiento 95 y el tope 182 se seleccionan de manera que la marca de calentamiento 95 se extiende mas alla del tapon de tabaco 80 y se superpone en una porcion del vacfo 91 por una distancia 98. A la distancia 98 se le denomina tambien como “superposicion calentador-vado” 98. A la distancia sobre la que el resto de la marca de calentamiento 95 se superpone al tapon de tabaco 80 se le denomina como la “superposicion calentador-relleno” 99.Preferably, the length of the tobacco plug 80 of the cigarette 23, the length of the heating mark 95, and the distance between the heating mark 95 and the stop 182 are selected such that the heating mark 95 extends beyond the tobacco plug 80 and is superimposed on a portion of the vacuum 91 by a distance 98. At distance 98 it is also referred to as "heater-ford overlay" 98. At the distance over which the rest of the heating mark 95 is superimposed on tobacco plug 80 is referred to as the "heater-fill superposition" 99.

La longitud del vado 91, el tapon de tabaco 80, y la distribucion de los agujeros de perforacion 263 puede ajustarse para ajustar las caractensticas de la accion de fumar del cigarrillo 23, que incluye ajustes de sabor, aspiracion y suministro. El patron de agujeros 263, la longitud del vado 90 y la cantidad de superposicion calentador-relleno 99 (y la superposicion calentador-vado 98) puede manipularse para ajustar la inmediatez de la respuesta, para promover 5 la consistencia en el suministro.The length of the ford 91, the tobacco plug 80, and the distribution of the piercing holes 263 can be adjusted to adjust the characteristics of the smoking action of the cigarette 23, which includes taste, aspiration and supply adjustments. Hole pattern 263, length of ford 90 and amount of heater-fill overlay 99 (and heater-ford overlay 98) can be manipulated to adjust the immediacy of the response, to promote consistency in supply.

Los cigarrillos calentados electricamente de conformidad con modalidades preferidas pueden proporcionar ventajas. En capsulando uno o mas saborizantes anadidos, especialmente saborizante volatil, el(los) saborizante(s) pueden retenerse en el cigarrillo hasta que se fume. Ademas, el saborizante, se libera preferentemente mediante la temperatura, de manera controlada durante la accion de fumar, proporcionando de esta manera el fumador con una 10 caractenstica subjetiva mejorada del cigarrillo. Cuando el saborizante se retiene en el aditivo liberador delElectrically heated cigarettes in accordance with preferred embodiments may provide advantages. In capping one or more added flavorings, especially volatile flavoring, the flavoring (s) may be retained in the cigarette until it is smoked. In addition, the flavoring is preferably released by temperature, in a controlled manner during the action of smoking, thereby providing the smoker with an improved subjective characteristic of the cigarette. When the flavor is retained in the release additive of the

saborizante hasta que se fuma el cigarrillo, la desactivacion del sorbente en el cigarrillo se minimiza preferentemente. Consecuentemente, el sorbente mantiene su capacidad para retirar los constituyentes de la fase gaseosa seleccionados del humo de la corriente principal.flavoring until the cigarette is smoked, deactivation of the sorbent in the cigarette is preferably minimized. Consequently, the sorbent maintains its ability to remove the constituents of the gas phase selected from the mainstream smoke.

Aunque la invencion se ha ilustrado y descrito de acuerdo con las varias modalidades preferidas, se reconoce que 15 pueden hacerse variaciones y cambios en la misma sin apartarse de la invencion como se establece en las reivindicaciones.Although the invention has been illustrated and described in accordance with the various preferred embodiments, it is recognized that variations and changes may be made therein without departing from the invention as set forth in the claims.

Claims (20)

55 1010 15fifteen 20twenty 2525 3030 3535 4040 45Four. Five 50fifty REIVINDICACIONES 1. Un cigarrillo calentado electricamente (23) para un sistema electrico para fumar (21), que comprende: al menos un sorbente; y1. An electrically heated cigarette (23) for an electric smoking system (21), comprising: at least one sorbent; Y un aditivo liberador del saborizante que incluye al menos un saborizante liberable en el cigarrillo calentado electricamente (23) despues de que el aditivo liberador del saborizante se calienta electricamente a al menos una temperatura minima, en donde el aditivo liberador del saborizante es un complejo de inclusion que incluye una molecula hospedera y el saborizante es una molecula huesped en el complejo de inclusion.a flavor-releasing additive that includes at least one releasable flavor in the electrically heated cigarette (23) after the flavor-releasing additive is electrically heated to at least a minimum temperature, where the flavor-releasing additive is an inclusion complex which includes a host molecule and the flavor is a host molecule in the inclusion complex. 2. El cigarrillo calentado electricamente (23) de conformidad con la reivindicacion 1, en donde el sorbente es carbon activado.2. The electrically heated cigarette (23) according to claim 1, wherein the sorbent is activated carbon. 3. El cigarrillo calentado electricamente (23) de conformidad con la reivindicacion 1, en donde el sorbente es zeolita.3. The electrically heated cigarette (23) according to claim 1, wherein the sorbent is zeolite. 4. El cigarrillo calentado electricamente (23) de conformidad con la reivindicacion 1, en donde el saborizante es (i) mentol, o (ii) vainilla y gamma octalactona.4. The electrically heated cigarette (23) according to claim 1, wherein the flavor is (i) menthol, or (ii) vanilla and gamma octalactone. 5. El cigarrillo calentado electricamente (23) de conformidad con la reivindicacion 1, en donde el saborizante es al menos un saborizante seleccionado del grupo que consiste en mentol, menta, chocolate, regaliz, sabores de dtricos y otras frutas, gamma octalactona, vainillina, etil vainillina, sabores aromatizadores del aliento, sabores de especias, salicilato de metilo, linalool, esencia de bergamota, esencia de geranio, esencia de limon, esencia de jengibre, y sabor de tabaco.5. The electrically heated cigarette (23) according to claim 1, wherein the flavor is at least one flavor selected from the group consisting of menthol, mint, chocolate, licorice, citrus and other fruit flavors, gamma octalactone, vanillin , ethyl vanillin, breath flavoring flavors, spice flavors, methyl salicylate, linalool, bergamot essence, geranium essence, lemon essence, ginger essence, and tobacco flavor. 6. El cigarrillo calentado electricamente (23) de conformidad con la reivindicacion 1, en donde la molecula hospedera es beta-ciclodextrina.6. The electrically heated cigarette (23) according to claim 1, wherein the host molecule is beta-cyclodextrin. 7. El cigarrillo calentado electricamente (23) de conformidad con la reivindicacion 1, que comprende, en base al peso de una envoltura (71) y/o esterilla (66), menos de aproximadamente 15% en peso del complejo de inclusion.7. The electrically heated cigarette (23) according to claim 1, comprising, based on the weight of a wrapper (71) and / or mat (66), less than about 15% by weight of the inclusion complex. 8. El cigarrillo calentado electricamente (23) de conformidad con la reivindicacion 1, en donde el complejo de inclusion comprende hasta aproximadamente 20% del saborizante.8. The electrically heated cigarette (23) according to claim 1, wherein the inclusion complex comprises up to about 20% of the flavor. 9. El cigarrillo calentado electricamente (23) de conformidad con la reivindicacion 1, en donde la temperatura minima es aproximadamente 60 °C, y el complejo de inclusion se dispone en al menos una localizacion en el cigarrillo calentado electricamente que alcanza al menos aproximadamente 60 °C durante la accion de fumar del cigarrillo (23).9. The electrically heated cigarette (23) according to claim 1, wherein the minimum temperature is approximately 60 ° C, and the inclusion complex is arranged in at least one location in the electrically heated cigarette that reaches at least about 60 ° C during the smoking action of the cigarette (23). 10. El cigarrillo calentado electricamente (23) de conformidad con la reivindicacion 1, en donde el aditivo liberador del saborizante se dispone sobre una envoltura interna (84) que rodea un tapon de tabaco (80), sobre una esterilla que contiene tabaco (66), y/o sobre una envoltura (71) que rodea la esterilla (66).10. The electrically heated cigarette (23) according to claim 1, wherein the flavoring-releasing additive is disposed on an inner envelope (84) surrounding a tobacco plug (80), on a tobacco-containing mat (66 ), and / or on a wrapper (71) surrounding the mat (66). 11. El cigarrillo calentado electricamente (23) de conformidad con la reivindicacion 1, en donde el sorbente es de fibras.11. The electrically heated cigarette (23) according to claim 1, wherein the sorbent is fiber. 12. El cigarrillo calentado electricamente (23) de conformidad con la reivindicacion 11, en donde las fibras son fibras continuas o no continuas.12. The electrically heated cigarette (23) according to claim 11, wherein the fibers are continuous or non-continuous fibers. 13. El cigarrillo calentado electricamente (23) de conformidad con la reivindicacion 11, en donde las fibras se impregnan con al menos un sorbente.13. The electrically heated cigarette (23) according to claim 11, wherein the fibers are impregnated with at least one sorbent. 14. Un metodo para hacer un cigarrillo calentado electricamente (23) de conformidad con la reivindicacion 1, que comprende incorporar dentro de un cigarrillo calentado electricamente (23) (a) el al menos un sorbente, y (b) el aditivo liberador del saborizante que incluye al menos un saborizante liberable en el cigarrillo calentado electricamente (23) despues de que el aditivo liberador del saborizante se calienta electricamente a al menos la temperatura minima, en donde el aditivo liberador del saborizante es un complejo de inclusion que incluye una molecula hospedera y el saborizante es una molecula huesped en el complejo de inclusion.14. A method of making an electrically heated cigarette (23) according to claim 1, which comprises incorporating into an electrically heated cigarette (23) (a) the at least one sorbent, and (b) the flavoring-releasing additive which includes at least one releasable flavor in the electrically heated cigarette (23) after the flavoring-releasing additive is electrically heated to at least the minimum temperature, wherein the flavor-releasing additive is an inclusion complex that includes a host molecule and the flavor is a host molecule in the inclusion complex. 15. Un metodo para fumar el cigarrillo calentado electricamente (23) de conformidad con la reivindicacion 1, que comprende calentar electricamente una porcion del cigarrillo calentado electricamente (23) para formar el humo y aspirar el humo a traves del cigarrillo calentado electricamente (23), sorbente que retira al menos un constituyente de la fase gaseosa seleccionado del humo de la corriente principal.15. A method of smoking the electrically heated cigarette (23) according to claim 1, comprising electrically heating a portion of the electrically heated cigarette (23) to form the smoke and aspirating the smoke through the electrically heated cigarette (23) , sorbent that removes at least one constituent of the gas phase selected from the mainstream smoke. 16. Un sistema electrico para fumar (21), que comprende:16. An electric smoking system (21), comprising: un encendedor (25); ya lighter (25); Y al menos un cigarrillo calentado electricamente (23) que incluye:at least one electrically heated cigarette (23) that includes: 55 1010 15fifteen 20twenty 2525 al menos un sorbente; yat least one sorbent; Y un aditivo liberador del saborizante que incluye al menos un saborizante que se libera en el cigarrillo calentado electricamente (23) despues de que el aditivo liberador del saborizante se calienta a al menos una temperatura minima, en donde el aditivo liberador del saborizante es un complejo de inclusion que incluye una molecula hospedera y el saborizante es una molecula huesped en el complejo de inclusion.a flavor-releasing additive that includes at least one flavor that is released in the electrically heated cigarette (23) after the flavor-releasing additive is heated to at least a minimum temperature, where the flavor-releasing additive is a complex of inclusion that includes a host molecule and the flavor is a host molecule in the inclusion complex. 17. Un cigarrillo calentado electricamente (23), que comprende:17. An electrically heated cigarette (23), comprising: al menos un sorbente; yat least one sorbent; Y al menos un aditivo liberador del saborizante que tiene una forma seleccionada del grupo que consiste en perlas, pelfcula, y un complejo de inclusion, cada aditivo liberador del saborizante incluye al menos un saborizante liberable en el cigarrillo calentado electricamente (23) despues de que el aditivo liberador del saborizante se calienta electricamente a al menos una temperatura minima, en donde el aditivo liberador del saborizante es un complejo de inclusion que incluye una molecula hospedera y el saborizante es una molecula huesped en el complejo de inclusion.At least one flavor-releasing additive having a form selected from the group consisting of beads, film, and an inclusion complex, each flavor-releasing additive includes at least one releasable flavor in the electrically heated cigarette (23) after the flavoring-releasing additive is electrically heated to at least a minimum temperature, where the flavoring-releasing additive is an inclusion complex that includes a host molecule and the flavor is a host molecule in the inclusion complex. 18. El cigarrillo calentado electricamente (23) de conformidad con la reivindicacion 17, en donde el aditivo liberador del saborizante comprende al menos dos aditivos liberadores del saborizante en forma de un complejo de inclusion, cada aditivo liberador del saborizante tiene una temperatura minima diferente a la que se libera el saborizante durante la accion de fumar del cigarrillo calentado electricamente (23).18. The electrically heated cigarette (23) according to claim 17, wherein the flavor-releasing additive comprises at least two flavor-releasing additives in the form of an inclusion complex, each flavor-releasing additive has a minimum temperature different from the one that releases the flavor during the smoking action of the electrically heated cigarette (23). 19. Un metodo para hacer un cigarrillo calentado electricamente (23) de conformidad con la reivindicacion 17, que comprende incorporar dentro de un cigarrillo calentado electricamente (23) (a) el al menos un sorbente, y (b) el al menos un aditivo liberador del saborizante en forma de un complejo de inclusion, el aditivo liberador del saborizante incluye al menos un saborizante liberable en el cigarrillo calentado electricamente (23) despues de que el aditivo liberador del saborizante se calienta electricamente a al menos la temperatura minima.19. A method of making an electrically heated cigarette (23) according to claim 17, which comprises incorporating into an electrically heated cigarette (23) (a) the at least one sorbent, and (b) the at least one additive flavor releasing agent in the form of an inclusion complex, the flavoring releasing additive includes at least one releasable flavoring in the electrically heated cigarette (23) after the flavoring releasing additive is electrically heated to at least the minimum temperature. 20. Un metodo para fumar el cigarrillo calentado electricamente (23) de conformidad con la reivindicacion 17, que comprende calentar una porcion del cigarrillo calentado electricamente (23) para formar el humo y aspirar el humo a traves del cigarrillo calentado electricamente (23), sorbente que retira al menos un constituyente de la fase gaseosa seleccionado del humo de la corriente principal.20. A method of smoking the electrically heated cigarette (23) according to claim 17, which comprises heating a portion of the electrically heated cigarette (23) to form the smoke and aspirating the smoke through the electrically heated cigarette (23), sorbent that removes at least one constituent of the gas phase selected from the mainstream smoke.
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