# US 2006/0154056 A1 · Pressure-sensitive adhesive product and substrate for pressure-sensitive adhesive product

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- Number: US 2006/0154056 A1
- Document ID: US20060154056A1
- Status: Published application
- Kind: A1
- Application number: 11/329,055
- Filed: 2006-01-11
- Published: 2006-07-13
- Earliest claimed: 2005-01-13
- Assignees: Nitto Denko Corporation
- Inventors: Takashi Imoto; Tsuneyuki Amano
- Web page: https://patentgrep.com/patent/US20060154056A1

## CPC

- C09J 155/02: ABS [Acrylonitrile-Butadiene-Styrene] polymers
- C08F 265/04: on to polymers of esters
- C08L 51/003: {grafted on to macromolecular compounds obtained by reactions only involving unsaturated carbon-to-carbon bonds (C08L51/04, C08L51/06 take precedence)}
- C08L 55/02: ABS [Acrylonitrile-Butadiene-Styrene] polymers
- C09J 7/24: based on macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
- C09J 133/20: Homopolymers or copolymers of acrylonitrile (C09J155/02 takes precedence)
- C09J 135/04: Homopolymers or copolymers of nitriles (C09J135/06, C09J135/08 take precedence)
- C09J 135/06: Copolymers with vinyl aromatic monomers
- C09J 151/003: {grafted on to macromolecular compounds obtained by reactions only involving unsaturated carbon-to-carbon bonds (C09J151/04, C09J151/06 take precedence)}
- C08L 33/20: Homopolymers or copolymers of acrylonitrile (C08L55/02 takes precedence)
- C08L 35/06: Copolymers with vinyl aromatic monomers
- C08L 2666/02: Organic macromolecular compounds, natural resins, waxes or and bituminous materials
- C08L 2666/04: Macromolecular compounds according to groups C08L7/00 - C08L49/00, or C08L55/00 - C08L57/00; Derivatives thereof
- C09J 2301/302: the adhesive being pressure-sensitive, i.e. tacky at temperatures inferior to 30°C
- C09J 2451/006: in the substrate
- Y10T 428/2883: including addition polymer of diene monomer [e.g., SBR, SIS, etc.]
- Y10T 428/2887: including nitrogen containing polymer [e.g., polyacrylonitrile, polymethacrylonitrile, etc.]
- Y10T 428/2891: including addition polymer from alpha-beta unsaturated carboxylic acid [e.g., acrylic acid, methacrylic acid, etc.] Or derivative thereof
- C09J: ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES (preparation of glue or gelatine C09H)
- C08F: MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08L: COMPOSITIONS OF MACROMOLECULAR COMPOUNDS (compositions based on polymerisable monomers C08F, C08G; artificial filaments or fibres D01F; textile treating compositions D06)
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

The pressure-sensitive adhesive product has a constitution wherein a pressure-sensitive adhesive layer is formed on at least one surface of a substrate, the substrate being formed from a resin composition containing an acrylonitrile-styrene copolymer and an acrylonitrile-styrene-acrylic rubber copolymer as main components and the weight ratio of the acrylonitrile-styrene copolymer to the acrylonitrile-styrene-acrylic rubber copolymer being 90/10 to 20/80. The above resin composition preferably has a form where the acrylonitrile-styrene-acrylic rubber copolymer is dispersed in the acrylonitrile-styrene copolymer.

## Claims

### Claim 1

A pressure-sensitive adhesive product comprising a substrate having formed on at least one surface thereof a pressure-sensitive adhesive layer, wherein the substrate is formed from a resin composition containing an acrylonitrile-styrene copolymer and an acrylonitrile-styrene-acrylic rubber copolymer as main components and the weight ratio of the acrylonitrile-styrene copolymer to the acrylonitrile-styrene-acrylic rubber copolymer is 90/10 to 20/80.

### Claim 2 (depends on 1)

The pressure-sensitive adhesive product according to claim 1, wherein the resin composition has a form where the acrylonitrile-styrene-acrylic rubber copolymer is dispersed in the acrylonitrile-styrene copolymer.

### Claim 3 (depends on 1)

The pressure-sensitive adhesive product according to claim 1, wherein the ratio of the acrylic rubber unit as a constitutional unit is 30 to 70% by weight relative to the acrylonitrile-styrene-acrylic rubber copolymer in the acrylonitrile-styrene-acrylic rubber copolymer.

### Claim 4 (depends on 1)

The pressure-sensitive adhesive product according to claim 1, wherein the acrylonitrile-styrene-acrylic rubber copolymer is a graft acrylonitrile-styrene-acrylic rubber copolymer having a form where an acrylonitrile-styrene copolymer is grafted to an acrylic rubber.

### Claim 5 (depends on 4)

The pressure-sensitive adhesive product according to claim 4, wherein the molar ratio of an acrylonitrile unit to a styrene unit is 30/70 to 45/55 in an acrylonitrile-styrene copolymer unit in the graft acrylonitrile-styrene-acrylic rubber copolymer.

### Claim 6 (depends on 1)

The pressure-sensitive adhesive product according to claim 1, wherein the molar ratio of an acrylonitrile unit to a styrene unit is 30/70 to 45/55 in the acrylonitrile-styrene copolymer.

### Claim 7 (depends on 1)

The pressure-sensitive adhesive product according to claim 1, wherein the thickness of the substrate is 20 to 200 μm.

### Claim 8

A substrate for a pressure-sensitive adhesive product having a pressure-sensitive adhesive layer, which is formed from a resin composition containing an acrylonitrile-styrene copolymer and an acrylonitrile-styrene-acrylic rubber copolymer as main components and the weight ratio of the acrylonitrile-styrene copolymer to the acrylonitrile-styrene-acrylic rubber copolymer being 90/10 to 20/80.

### Claim 9 (depends on 8)

The substrate for a pressure-sensitive adhesive product according to claim 8, wherein the resin composition has a form where the acrylonitrile-styrene-acrylic rubber copolymer is dispersed in the acrylonitrile-styrene copolymer.

### Claim 10 (depends on 8)

The substrate for a pressure-sensitive adhesive product according to claim 8, wherein the ratio of the acrylic rubber unit as a constitutional unit is 30 to 70% by weight relative to the acrylonitrile-styrene-acrylic rubber copolymer in the acrylonitrile-styrene-acrylic rubber copolymer.

### Claim 11 (depends on 8)

The substrate for a pressure-sensitive adhesive product according to claim 8, wherein the acrylonitrile-styrene-acrylic rubber copolymer is a graft acrylonitrile-styrene-acrylic rubber copolymer having a form where an acrylonitrile-styrene copolymer is grafted to an acrylic rubber.

### Claim 12 (depends on 11)

The substrate for a pressure-sensitive adhesive product according to claim 11, wherein the molar ratio of an acrylonitrile unit to a styrene unit is 30/70 to 45/55 in an acrylonitrile-styrene copolymer unit in the graft acrylonitrile-styrene-acrylic rubber copolymer.

### Claim 13 (depends on 8)

The substrate for a pressure-sensitive adhesive product according to claim 8, wherein the molar ratio of an acrylonitrile unit to a styrene unit is 30/70 to 45/55 in the acrylonitrile-styrene copolymer.

### Claim 14 (depends on 8)

The substrate for a pressure-sensitive adhesive product according to claim 8, whose thickness is 20 to 200 μm.