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1. WO2012132520 - PRESSURE SENSITIVE ADHESIVE SHEET

Publication Number WO/2012/132520
Publication Date 04.10.2012
International Application No. PCT/JP2012/051474
International Filing Date 24.01.2012
IPC
C09J 7/02 2006.01
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
7Adhesives in the form of films or foils
02on carriers
B32B 27/00 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
27Layered products essentially comprising synthetic resin
B32B 27/30 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
27Layered products essentially comprising synthetic resin
30comprising vinyl resin; comprising acrylic resin
C09J 123/22 2006.01
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
123Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers
02not modified by chemical after-treatment
18Homopolymers or copolymers of hydrocarbons having four or more carbon atoms
20having four to nine carbon atoms
22Copolymers of isobutene; Butyl rubber
C09J 133/00 2006.01
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
133Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Adhesives based on derivatives of such polymers
C09J 175/04 2006.01
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
175Adhesives based on polyureas or polyurethanes; Adhesives based on derivatives of such polymers
04Polyurethanes
CPC
B32B 2405/00
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
2405Adhesive articles, e.g. adhesive tapes
B32B 27/00
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
27Layered products comprising ; a layer of; synthetic resin
B32B 27/30
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
27Layered products comprising ; a layer of; synthetic resin
30comprising vinyl ; (co)polymers; comprising acrylic (co)polymers
B32B 27/36
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
27Layered products comprising ; a layer of; synthetic resin
36comprising polyesters
B32B 7/12
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
7Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
04Interconnection of layers
12using interposed adhesives or interposed materials with bonding properties
C08G 18/4825
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
GMACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
18Polymeric products of isocyanates or isothiocyanates
06with compounds having active hydrogen
28characterised by the compounds used containing active hydrogen
40High-molecular-weight compounds
48Polyethers
4825Polyethers containing two hydroxy groups
Applicants
  • リンテック株式会社 LINTEC CORPORATION [JP]/[JP] (AllExceptUS)
  • 稲男 洋一 INAO, Youichi [JP]/[JP] (UsOnly)
  • 山口 征太郎 YAMAGUCHI, Seitaro [JP]/[JP] (UsOnly)
  • 樫尾 幹広 KASHIO, Mikihiro [JP]/[JP] (UsOnly)
  • 川田 智史 KAWADA, Satoshi [JP]/[JP] (UsOnly)
Inventors
  • 稲男 洋一 INAO, Youichi
  • 山口 征太郎 YAMAGUCHI, Seitaro
  • 樫尾 幹広 KASHIO, Mikihiro
  • 川田 智史 KAWADA, Satoshi
Agents
  • 大谷 保 OHTANI, Tamotsu
Priority Data
2011-07791031.03.2011JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) PRESSURE SENSITIVE ADHESIVE SHEET
(FR) FEUILLE ADHÉSIVE SENSIBLE À LA PRESSION
(JA) 粘着シート
Abstract
(EN)
The present invention relates to a pressure sensitive adhesive sheet having a pressure sensitive adhesive layer on at least one surface of a backing, wherein: the pressure sensitive adhesive layer has a two-layer configuration of a first pressure sensitive adhesive layer and a second pressure sensitive adhesive layer, in order from the backing; the first pressure sensitive adhesive that configures the first pressure sensitive adhesive layer has a loss tangent (tan δ) value at 0°C of 0.25 or more, and a storage modulus value at 0°C of 0.01 - 0.80 MPa; and the resin component contained in the second pressure sensitive adhesive that configures the second pressure sensitive adhesive layer contains 10 - 100 mass% of an acrylic copolymer having cross-linking functional groups. This pressure sensitive adhesive sheet has excellent adhesive strength even when the pressure sensitive adhesive layer is made thin.
(FR)
Cette invention concerne une feuille adhésive sensible à la pression portant une couche adhésive sensible à la pression sur au moins une surface d'un support, ladite couche adhésive sensible à la pression ayant une configuration à deux couches constituée d'une première couche adhésive sensible à la pression et d'une seconde couche adhésive sensible à la pression, dans cet ordre à partir du support. Le premier adhésif sensible à la pression qui constitue la première couche adhésive sensible à la pression a une valeur de tangente de perte (tan δ) à 0°C de 0,25 ou plus, et une valeur de module de stockage à 0°C de 0,01 à 0,80 MPa et le composant de résine contenu dans le second adhésif sensible à la pression qui constitue la seconde couche adhésive sensible à la pression contient 10 à 100 % en poids d'un copolymère acrylique ayant des groupes de réticulation fonctionnels. La feuille adhésive sensible à la pression selon l'invention a une excellente force d'adhérence même quand la couche adhésive sensible à la pression formée est mince.
(JA)
 本発明は、基材の少なくとも片面に、粘着剤層を有する粘着シートであって、前記粘着剤層が基材側より第1の粘着剤層、及び第2の粘着剤層の2層構造からなり、第1の粘着剤層を構成する第1の粘着剤について、0℃における損失正接(tanδ)の値が0.25以上であり、かつ0℃における貯蔵弾性率の値が0.01~0.80MPaであり、第2の粘着剤層を構成する第2の粘着剤に含まれる樹脂成分中、架橋性官能基を有するアクリル系共重合体を10~100質量%含む、粘着シートに関する。本発明の粘着シートは、粘着剤層を薄膜化しても、優れた粘着力を有する。
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