WO2010073169A1 - Ruban facilement amovible - Google Patents

Ruban facilement amovible Download PDF

Info

Publication number
WO2010073169A1
WO2010073169A1 PCT/IB2009/055628 IB2009055628W WO2010073169A1 WO 2010073169 A1 WO2010073169 A1 WO 2010073169A1 IB 2009055628 W IB2009055628 W IB 2009055628W WO 2010073169 A1 WO2010073169 A1 WO 2010073169A1
Authority
WO
WIPO (PCT)
Prior art keywords
tape
adhesive
dissolvent
blending
trigger
Prior art date
Application number
PCT/IB2009/055628
Other languages
English (en)
Inventor
Paul A. J. Ackermans
Original Assignee
Koninklijke Philips Electronics N.V.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Koninklijke Philips Electronics N.V. filed Critical Koninklijke Philips Electronics N.V.
Publication of WO2010073169A1 publication Critical patent/WO2010073169A1/fr

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J5/00—Adhesive processes in general; Adhesive processes not provided for elsewhere, e.g. relating to primers
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00—Adhesives in the form of films or foils
    • C09J7/20—Adhesives in the form of films or foils characterised by their carriers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K9/00—Use of pretreated ingredients
    • C08K9/10—Encapsulated ingredients
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2301/00—Additional features of adhesives in the form of films or foils
    • C09J2301/40—Additional features of adhesives in the form of films or foils characterized by the presence of essential components
    • C09J2301/408—Additional features of adhesives in the form of films or foils characterized by the presence of essential components additives as essential feature of the adhesive layer
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2301/00—Additional features of adhesives in the form of films or foils
    • C09J2301/40—Additional features of adhesives in the form of films or foils characterized by the presence of essential components
    • C09J2301/412—Additional features of adhesives in the form of films or foils characterized by the presence of essential components presence of microspheres
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2301/00—Additional features of adhesives in the form of films or foils
    • C09J2301/50—Additional features of adhesives in the form of films or foils characterized by process specific features
    • C09J2301/502—Additional features of adhesives in the form of films or foils characterized by process specific features process for debonding adherents

Definitions

  • the present invention relates to an easily removable tape and a method for facilitating the removal of such a tape from a surface.
  • Adhesive tapes such as tapes that use pressure sensitive adhesives are commonly used in the health care, first aid and other medical fields. These tapes are easy to apply to the skin surface, but removing them from the skin may be quite painful. The pain results from the tension applied to the skin by the adhesive during removal of the tape. This pain is especially severe in hairy areas since the tape pulls on the hair as it is removed. Beside the pain and discomfort associated with removal of the tape, it is common to shave the hair from the areas to be taped, which may result in embarrassment or inconvenience to the patient. For example, it is common to shave the chest hair before applying self-sticking ECG electrodes.
  • Pressure sensitive tapes are sometimes avoided for use over cuts, sutures, etc. because removal of the tape may break open the wound and thus interfere with the healing process.
  • One common way to avoid this problem is to provide an area on the bandage that has no adhesive. This area is then placed over the most sensitive area of the wound. With such bandages, the area of the wound that would most benefit from the adhesive by being kept in close contact, e.g., the opposing edges of a cut, so that it would heal faster, is not held in place by the adhesive.
  • patent application GB2353219A discloses an easily removable medical tape used to secure e.g. catheters and other medical devices in position on the body of a patient.
  • the tape comprises a backing layer whose one side is provided with an adhesive layer.
  • a reservoir or a conduit is provided in the adhesive layer, for supplying a liquid such that the adherence of the adhesive is reduced and removal of the tape becomes easier.
  • the conduit has a release pull strip to secrete the liquid into the adhesive layer when being pulled.
  • One drawback of this tape is that it requires the construction and the presence of the release pull strip as well as the need to pull it in order to secrete the liquid into the adhesive layer.
  • UV-light to harden the adhesive, or heat to soften the adhesive in order to ease the release of the tape or the tape.
  • Using UV-light or heat may however be damaging to the exposed skin.
  • the present invention preferably seeks to mitigate, alleviate or overcome the above-identified drawbacks and problems in the art by providing an easily removable tape and a method for facilitating the removal of such a tape according to the appended patent claims.
  • the present invention relates to a tape for attachment to a surface comprising an adhesive for attaching the tape to the surface, and a dissolvent for reducing the adhesiveness of the adhesive, the adhesive and the dissolvent being spatially separated, wherein the tape is arranged for facilitating the removal of the tape from the surface by blending the dissolvent with the adhesive when being subjected to a dedicated and contactless trigger that comprises focused energy aimed at triggering said blending.
  • the trigger comprises ultrasound.
  • ultrasound is not damaging to the exposed skin.
  • Using ultrasound provides a convenient way of triggering, in a contactless manner, the blending of the dissolvent and the adhesive.
  • the dissolvent is initially inside a capsule, the capsule being breakable by the ultrasound of the trigger.
  • the capsules are contained within the adhesive.
  • One drawback of the tape described in patent application GB2353219A is that, due to the construction of the conduit in a confined area in the adhesive layer, the liquid is not guaranteed to be distributed evenly throughout the entire adhesive layer. The effect may then be that the remaining adherence properties vary throughout the adhesive layer, which reduces the easiness of removing of the tape.
  • capsules, containers, or spheres that are filled with a dissolvent it is possible, when manufacturing the tape, to achieve a uniform distribution of the capsules in the adhesive layer. When the capsules are broken, or disrupted, with the use of focused ultrasound, the dissolvent is therefore also distributed evenly throughout the entire adhesive layer - thus alleviating the above-mentioned problem.
  • the capsules are microbubbles pref ⁇ lled with the dissolvent.
  • Microbubbles are used to carry a drug or gene until a specific area of interest is reached, and then ultrasound is used to burst the microbubbles, causing site-specific delivery of the bioactive materials. It is therefore considered advantageous in the present invention to apply this knowledge to use preloaded microbubbles as the capsules containing the dissolvent and to release the preloaded dissolvent by the ultrasound means.
  • the trigger comprises an electrical field.
  • applying an electrical field is not damaging to the exposed skin. Applying an electrical field provides another convenient way of triggering, in a contactless manner, the blending of the dissolvent and the adhesive.
  • the tape is arranged for iontophoresis of the dissolvent into the adhesive.
  • the dissolvent becomes charged and may thus be moved into the adhesive by the iontophoresis principle.
  • the tape comprises an electrode for applying the electrical field and a connector for coupling the electrode to a voltage source.
  • the voltage source may be supplied by a voltage source, such as a battery, comprised in the tape, but an external voltage source may also be connected to the electrode via said connector.
  • the electrode, the dissolvent, and the adhesive are structured in layers, and the adhesive and the dissolvent are spatially separated by a separation membrane layer.
  • the adhesive and the dissolvent may be spatially separated e.g. by capsules that contain the dissolvent.
  • the present invention relates to a method for facilitating the removal of a tape from a surface which tape comprises an adhesive for attaching the tape to the surface and a dissolvent for reducing the adhesiveness of the adhesive, the adhesive and the dissolvent being spatially separated, the method comprising the step of facilitating the removal of the tape from the surface by blending the dissolvent with the adhesive by subjecting the tape to a dedicated and contactless trigger that comprises focused energy aimed at triggering said blending.
  • the aspects of the present invention may each be combined with any of the other aspects.
  • Fig. 1 shows a cross-sectional side-view of a portion of an easily removable tape according to a preferred embodiment of the present invention
  • Fig. 2 shows a cross-sectional side-view of a portion of an easily removable tape according to another preferred embodiment of the present invention.
  • Figures 1 and 2 show, respectively, a cross-sectional side-view of a portion of an easily removable tape according to preferred embodiments of the present invention.
  • the Figures shows the portion of the tape which has the adhesive. Not shown may be those parts of the tape which also has a wound-contacting part of e.g. absorbent, i.e. there is a lack of adhesive, and thus no need for a dissolvent for reducing the adhesiveness of the adhesive.
  • Figure 1 shows a surface 10 onto which a tape is attached.
  • the tape may be a medical tape, such as a plaster, a surgical tape, or an adhesive bandage, but it could also be any kind of tape which is adhesive, such as a packaging tape, a masking tape, an electrical tape, or the like.
  • the surface 10 may be the skin of the human body, but it could also be any kind of surface 10 which is requires specific care when removing the tape, e.g. a masking tape which is attached onto a sensitive surface 10, like a painting, a painted wall, or a fabric.
  • the tape comprises an adhesive 12 for attaching the tape to the surface 10.
  • adhesives for tapes such as, for example, natural rubber, carboxylated styrene-butadiene rubber latices, acrylic latex, copolymers based on styrene end blocks and a rubbery midblock of isoprene, butadiene, ethylene-butylene and styrene- butadiene multiblock copolymers.
  • the tape further comprises a dissolvent 14 for reducing the adhesiveness of the adhesive 12.
  • the adhesive 12 may be any adhesive 12 that is weakened or released by the dissolvent 14 supplied to release the adhesive 12.
  • the adhesive 12 and the dissolvent 14 are spatially separated by the walls of capsules.
  • the tape is exposed to e.g. ultrasound, whereupon the capsules break and the adhesive 12 and the dissolvent 14 become blended.
  • the capsules are preferably made of a biodegradable material, although a biocompatible material suffices. The capsules should be large enough and numerous enough to contain sufficient dissolvent 14 and be able to be disrupted by means of focused ultrasound.
  • the dissolvent 14 may be an aqueous liquid, and accordingly the adhesive 12 should then be water-releasable.
  • Preferred pressure-sensitive adhesives include the acrylate ester copolymer, polyvinyl ethyl ether and polyurethane based pressure-sensitive adhesives conventionally used in adhesive wound dressings and medical tapes, and described for example in GB-A- 1280631.
  • the adhesive 12 could also be a non-acqueous liquid, such as the liquid used in Hollister's Medical Adhesive which is a medical grade silicone adhesive. It is designed to attach e.g.
  • Medical Adhesive is based on 1,1-Difluoro ethane and Hexamethyldisiloxane. It can be used on sensitive skin, it allows the skin to breathe and remains flexible and comfortable.
  • Hollister Adhesive Remover is a corresponding dissolvent arranged to ease the release of e.g. a tape attached to the skin.
  • Adhesive Remover is based on Isobutane and Hexamethyldisiloxane.
  • microbubbles which are prefilled with the dissolvent 14.
  • Microbubbles are typically less than 5 microns in diameter, which makes them no bigger than red blood cells.
  • Their shell is normally manufactured from albumin or a biodegradable material such as polylactic acid or galactose. Applying ultrasound on the microbubbles causes their walls to burst.
  • the tape further comprises a backing layer 16 which is substantially impermeable to liquids and microorganisms.
  • the backing layer 16 is semipermeable. That is to say, the backing layer is permeable to water vapor, but not permeable to aqueous liquids.
  • Suitable polymers for forming the backing layer 16 include polyurethanes and polyalkoxyalkyl acrylates and methacrylates, such as those disclosed in GBA 1280631.
  • Figure 2 shows a cross-sectional side-view of a portion of an easily removable tape according to another preferred embodiment of the present invention.
  • Figure 2 shows a surface 10 onto which a tape is attached.
  • the tape comprises an adhesive 12 for attaching the tape to the surface 10.
  • the tape further comprises a dissolvent 22 for reducing the adhesiveness of the adhesive 12.
  • the adhesive 12 and the dissolvent 22 are spatially separated by a separation layer 20.
  • the tape further comprises a backing layer in the form of an electrode 24 which is arranged to be electrically connected to the surface 10.
  • the electrode 24, the dissolvent 22, and the adhesive 12 are all structured in layers. By switching on an electric field over the tape the dissolvent layer 22 becomes charged and may thus be moved into the adhesive layer 12 by the iontophoresis principle.
  • the charged dissolvent 22 may either be chartered by itself, or bound to or incorporated in a suitable carrier.
  • the electrical power is available in the tape, such as in the Philips' Raven patch. It consists of an adhesive electrode system with a clip on the back of the parch. This clip holds a monitoring device, with electronics and a battery. Connection to the patch is made via flexible, conducting polymer contacts.
  • the power that is provided by the battery could be used for applying the electrical field to achieve the iontophoresis effect as well.
  • the existing electrode structure may be arranged to produce the electrical field necessary for the dissolvent 22 to be transported to the adhesive layer for blending them.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Medicinal Preparation (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Adhesive Tapes (AREA)

Abstract

La présente invention porte sur un ruban destiné à être fixé à une surface, comprenant un adhésif pour la fixation dudit ruban sur la surface et un dissolvant pour la réduction de l'adhésivité de l'adhésif, l'adhésif et le dissolvant étant spatialement séparés, le ruban étant conçu pour faciliter son retrait de la surface par mélange du dissolvant avec l'adhésif lorsqu'il est soumis à un élément déclencheur dédié et sans contact qui comprend de l'énergie focalisée destinée à déclencher ledit mélange.
PCT/IB2009/055628 2008-12-22 2009-12-09 Ruban facilement amovible WO2010073169A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP08172612 2008-12-22
EP08172612.7 2008-12-22

Publications (1)

Publication Number Publication Date
WO2010073169A1 true WO2010073169A1 (fr) 2010-07-01

Family

ID=41800416

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2009/055628 WO2010073169A1 (fr) 2008-12-22 2009-12-09 Ruban facilement amovible

Country Status (1)

Country Link
WO (1) WO2010073169A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10072525B2 (en) 2014-09-16 2018-09-11 Rolls-Royce Plc Gas turbine engine

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1280631A (en) 1968-07-09 1972-07-05 Smith & Nephew Adhesive materials
GB2353219A (en) 1999-08-16 2001-02-21 Johnson & Johnson Medical Ltd Easy to remove adhesive sheet
WO2008053713A1 (fr) * 2006-11-04 2008-05-08 Nitto Denko Corporation Feuille adhésive sensible à la pression et pelable sous l'action de la chaleur, et procédé de récupération de la surface adhésive
WO2010001157A2 (fr) * 2008-07-01 2010-01-07 De-Bonding Limited Microsphères thermoexpansibles enrobées

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1280631A (en) 1968-07-09 1972-07-05 Smith & Nephew Adhesive materials
GB2353219A (en) 1999-08-16 2001-02-21 Johnson & Johnson Medical Ltd Easy to remove adhesive sheet
WO2008053713A1 (fr) * 2006-11-04 2008-05-08 Nitto Denko Corporation Feuille adhésive sensible à la pression et pelable sous l'action de la chaleur, et procédé de récupération de la surface adhésive
EP2078740A1 (fr) * 2006-11-04 2009-07-15 Nitto Denko Corporation Feuille adhésive sensible à la pression et pelable sous l'action de la chaleur, et procédé de récupération de la surface adhésive
WO2010001157A2 (fr) * 2008-07-01 2010-01-07 De-Bonding Limited Microsphères thermoexpansibles enrobées

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10072525B2 (en) 2014-09-16 2018-09-11 Rolls-Royce Plc Gas turbine engine

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