ES2558467T3 - Película orientada de copolímero de impacto de polipropileno - Google Patents

Película orientada de copolímero de impacto de polipropileno Download PDF

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ES2558467T3
ES2558467T3 ES13702879.1T ES13702879T ES2558467T3 ES 2558467 T3 ES2558467 T3 ES 2558467T3 ES 13702879 T ES13702879 T ES 13702879T ES 2558467 T3 ES2558467 T3 ES 2558467T3
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icp
cpr
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impact copolymer
oriented polypropylene
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Kevin O. Henderson
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Avery Dennison Corp
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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
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    • C09J7/22—Plastics; Metallised plastics
    • C09J7/24—Plastics; Metallised plastics based on macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
    • C09J7/241—Polyolefin, e.g.rubber
    • C09J7/243—Ethylene or propylene polymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/10—Homopolymers or copolymers of propene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/16—Elastomeric ethene-propene or ethene-propene-diene copolymers, e.g. EPR and EPDM rubbers
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
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    • G09F3/10—Fastening or securing by means not forming part of the material of the label itself by an adhesive layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2270/00—Resin or rubber layer containing a blend of at least two different polymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
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    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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    • C09J2203/00—Applications of adhesives in processes or use of adhesives in the form of films or foils
    • C09J2203/334—Applications of adhesives in processes or use of adhesives in the form of films or foils as a label
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    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
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    • C09J2301/00—Additional features of adhesives in the form of films or foils
    • C09J2301/10—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet
    • C09J2301/16—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the structure of the carrier layer
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    • C09J2301/40—Additional features of adhesives in the form of films or foils characterized by the presence of essential components
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/28—Web or sheet containing structurally defined element or component and having an adhesive outermost layer
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/28—Web or sheet containing structurally defined element or component and having an adhesive outermost layer
    • Y10T428/2848—Three or more layers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31855—Of addition polymer from unsaturated monomers
    • Y10T428/31909—Next to second addition polymer from unsaturated monomers
    • Y10T428/31913—Monoolefin polymer
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31855—Of addition polymer from unsaturated monomers
    • Y10T428/31909—Next to second addition polymer from unsaturated monomers
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    • Y10T428/3192—Next to vinyl or vinylidene chloride polymer
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
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  • Polymers & Plastics (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Laminated Bodies (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
  • Details Of Rigid Or Semi-Rigid Containers (AREA)

Abstract

Un material frontal de etiqueta orientado axialmente que comprende una mezcla de un copolímero de impacto de polipropileno (ICP) y al menos otro material polimérico, en el que el ICP se produce en una reacción por copolimerización secuencial de polipropileno con elastómeros, en el que el ICP contiene de 8 a 20% de elastómero.

Description

imagen1
imagen2
imagen3
imagen4
particular de orientación en la dirección de la máquina. Además, la adaptabilidad de una película se puede reducir usando un grado particular de orientación en la dirección de la máquina.
Ejemplos
Se realizaron una serie de ensayos para evaluar varias propiedades y características de distintos conjuntos de
5 película de los modos de realización preferidos. Específicamente, se evaluaron características relacionadas con la fuerza de “cinta” (es decir, energía de fricción de troquelado), turbidez, claridad, brillo, rigidez o resistencia a la flexión, módulo elástico y densidad.
Las tablas 1A y 1B resumen varias estructuras de películas denominadas muestras A-E. Generalmente, cada muestra incluye una capa “de impresión” exterior, una capa central interior (“núcleo”) y una capa adhesiva. En todas
10 las muestras, la capa central interna constituye la mayor proporción de peso y grosor de las muestras. Las muestras incluían varias cantidades de ICP en la capa central y opcionalmente en la capa de impresión y en la capa adhesiva. Una muestra de control que tenía una estructura similar incluía una capa central libre de ICP.
Tabla 1A – Muestras A, B y C
Muestra
A B C
Impresión
Núcleo Adhesivo Impresión Núcleo Adhesivo Impresión Núcleo Adhesivo
% de capa
5,0% 90,0% 5,0% 5,0% 90,0% 5,0% 5,0% 90,0% 5,0%
AB
3,0% 1,0% 10,0% 5,0% 10,0% 10,0%
AO
EVA (18%)
25,05%
HPP
23,0% 60,0% 70,0%
ICP
48,5% 100,0% 74,0% 40,0% 20,0%
LLDPE
42,0% 10,0% 80,0% 80,0%
mPE
25,0% 15,0%
RCP
80,0%
Ión Zn
48,5%
a-PE/PP
10,0%
Relación MDO
5:50:1 5:30:1 5.00:1
15 Tabla 1B – Muestras D y E
Muestra
A B
Impresión
Núcleo Adhesivo Impresión Núcleo Adhesivo
% de capa
5,0% 90,0% 5,0% 7,6% 84,4% 7,6%
AB
10,0% 7,0% 10,0% 7,0%
AO
2,0%
EVA (18%)
HPP
24,0% 15,0% 70,0% 23,0% 60,0% 70,0%
ICP
40,0%
LLDPE
40,0% 9,0% 42,0% 9,0%
mPE
24,0% 15,0% 14,0% 25,0% 14,0%
6
imagen5
5
10
15
20
25
30
35
40
La figura 4 muestra los valores del brillo a 60º para varias muestras. Todas las muestras A, B, C y E presentaron valores de brillo mayores en comparación con la muestra de control. Generalmente se desean valores de brillo mayores para revestimientos superiores y aplicaciones de tintas metálicas.
La figura 5 muestra la rigidez o resistencia a la flexión en la dirección de la máquina (MD) y en la dirección transversal (CD) para las muestras y el control. Todas las muestras presentaron mayor rigidez tanto en la dirección de la máquina como en la dirección transversal en comparación con la muestra de control. Típicamente, se prefiere una rigidez mayor para operaciones de distribución.
La figura 6 muestra varios valores del módulo elástico tanto en la dirección de la máquina (MD) como en la dirección transversal (CD) para las muestras en comparación con la muestra de control. Como se comprenderá, el módulo elástico es una medida de la resistencia a la deformación. Todas las muestras, A, B, C y E presentaron un módulo mayor en la dirección de la máquina, en comparación con la muestra de control. Y todas las muestras presentaron valores del módulo mayores o esencialmente el mismo en la dirección transversal en comparación con la muestra de control. Generalmente se prefieren valores del módulo elástico mayores para impresión. Y generalmente los valores de módulo elástico bajos indican una buena adaptabilidad a un sustrato no plano tal como una botella.
La figura 7 muestra la densidad de las muestras en comparación con el control. Todas las muestras presentaron mayores densidades que la muestra.
Los resultados y los datos indicados previamente demostraron sorprendentemente que la incorporación de ICP a un sustrato, por ejemplo en una o ambas capa de impresión y/o capa central, no afecta significativamente a la claridad, mejora el troquelado y parece que suprime la cantidad mínima de energía (es decir, temperatura y tensión) necesaria para orientar a los polímeros más cristalinos. Los ejemplos de polímeros más cristalinos incluyen homopolímero de polipropileno (HPP) y copolímero aleatorio de polipropileno (RCP). Se cree que proporcionar una superficie de PE orientada sin defectos significativos es un avance importante en la técnica.
Se realizaron otra serie de ensayos para evaluar las muestras de película formadas a partir de mezclas de un solo componente y varios componentes de copolímero aleatorio de polipropileno (RCP) y copolímero de impacto de polipropileno (ICP). Específicamente las muestras se prepararon con 100% de RCP, una mezcla de 75% de RCP y 25% de ICP, 50% de RCP y 50% de ICP, 25% de RCP y 75% de ICP y 100% de ICP. Las distintas muestras se compararon con controles de materiales disponibles comercialmente de PE-85 disponibles en Charter Films of Superior, Wisconsin, y de TC-BOPP disponibles en ExxonMobil Chemical. La tabla 4 resume y describe cada una de las distintas muestras.
Tabla 4-Muestras F-L
Muestra
Descripción
F
100% de RCP
G
75% de RCP y 25% de ICP
H
50% de RCP y 50% de ICP
I
25% de RCP y 75% de ICP
J
100% de ICP
K
Control de PE-85
L
Control de BOPP
La figura 8 muestra el comportamiento frente al troquelado de mezclas de ICP orientadas en la dirección de la máquina (MD) con RCP. Generalmente es adecuado reducir la resistencia al troquelado. Por lo tanto, como se demuestra en los datos de la figura 8, la resistencia al troquelado de los materiales de RCP se puede reducir incorporando cantidades de ICP en la mezcla de RCP e ICP.
La figura 9 muestra la adaptabilidad calculada de mezclas de ICP orientadas en la dirección de la máquina con RCP. Generalmente se prefiere reducir la resistencia a la adaptabilidad. Como es evidente en la figura 9, la resistencia a la adaptabilidad de los materiales de RCP se puede reducir incorporando cantidades de ICP en ellos.
La figura 10 muestra la turbidez medida de mezclas de ICP orientadas en la dirección de la máquina con RCP. Generalmente es adecuado proporcionar películas con un porcentaje de turbidez bajo. Como se muestra en la figura 10, se pueden usar proporciones relativamente grandes de ICP, tales como hasta aproximadamente 50%, en una mezcla de RCP e ICP sin aumentar significativamente la turbidez de la mezcla resultante.
8
La figura 11 muestra el efecto calculado del aumento de la orientación en la dirección de la máquina sobre el troquelado. Para muchas aplicaciones, se prefiere que la resistencia al troquelado sea relativamente baja. Y por lo tanto, se puede observar que una orientación en la dirección de la máquina de aproximadamente 4,50X a aproximadamente 5,25X proporciona una resistencia al troquelado reducida en comparación con las muestras
5 correspondientes, teniendo sin embargo dichas muestras orientaciones de 5,25X o más u orientaciones de 4,50X o menos.
La figura 12 muestra el efecto calculado del aumento de la orientación en la dirección de la máquina sobre la adaptabilidad. Generalmente es adecuado que la resistencia a la adaptabilidad sea relativamente baja. Como es evidente en la figura 12 se pueden obtener adaptabilidades a orientaciones menores de aproximadamente 5,00X.
10 La figura 13 muestra la resistencia al troquelado calculada de diferentes grados de ICP orientado en la dirección de la máquina mezclados con RCP. Los diferentes materiales de ICP eran todos resinas de ICP comercialmente disponibles con las siguientes denominaciones: (i) TOTAL 5759, (ii) LyondellBasell SG702, (iii) ChevronPhillips AGN120, (iv) Flint Hills AP 7310-HS, ( v) Flint Hills AP 7710-HS y (vi) LyondellBasell Profax 8523. Cada grado de ICP se mezcló con 25% de RCP.
15 La figura 14 muestra la adaptabilidad calculada para diferentes grados de ICP orientado en la dirección de la máquina mezclados con RCP. Se mezclaron con 25% de RCP los mismos grados de ICP disponibles comercialmente que se han descrito con respecto a la figura 13.
Comparando las figuras 13 y 14, es evidente que las mezclas de ICP y RCP para mejorar, es decir reducir, la resistencia al troquelado, y para mejorar, es decir reducir, la resistencia a la adaptabilidad, están generalmente en
20 oposición entre ellas.
9

Claims (1)

  1. imagen1
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JP6247642B2 (ja) * 2012-01-31 2017-12-13 エーブリー デニソン コーポレイションＡｖｅｒｙ Ｄｅｎｎｉｓｏｎ Ｃｏｒｐｏｒａｔｉｏｎ インパクトコポリマーポリプロピレン延伸フィルム
WO2015187646A1 (en) 2014-06-02 2015-12-10 Avery Dennison Corporation Films with enhanced scuff resistance, clarity, and conformability
JP2018505266A (ja) 2014-12-30 2018-02-22 アベリー・デニソン・コーポレイションＡｖｅｒｙ Ｄｅｎｎｉｓｏｎ Ｃｏｒｐｏｒａｔｉｏｎ フィルムおよびフィルムレーザー変換装置
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