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1. WO2020110489 - ADHESIVE SHEET

Publication Number WO/2020/110489
Publication Date 04.06.2020
International Application No. PCT/JP2019/040493
International Filing Date 15.10.2019
IPC
C09J 7/38 2018.01
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
30characterised by the adhesive composition
38Pressure-sensitive adhesives
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 183/07 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
183Adhesives based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Adhesives based on derivatives of such polymers
04Polysiloxanes
07containing silicon bound to unsaturated aliphatic groups
C09J 201/00 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
201Adhesives based on unspecified macromolecular compounds
CPC
C09J 133/00
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 MATERIAL 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 201/00
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 MATERIAL AS ADHESIVES
201Adhesives based on unspecified macromolecular compounds
C09J 7/38
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 MATERIAL AS ADHESIVES
7Adhesives in the form of films or foils
30characterised by the adhesive composition
38Pressure-sensitive adhesives [PSA]
Applicants
  • 日東電工株式会社 NITTO DENKO CORPORATION [JP]/[JP]
Inventors
  • 家田 博基 IEDA, Hiroki
  • 鈴木 立也 SUZUKI, Tatsuya
  • 仲野 武史 NAKANO, Takeshi
Agents
  • 大井 道子 OI, Michiko
Priority Data
2018-22541230.11.2018JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) ADHESIVE SHEET
(FR) FEUILLE ADHÉSIVE
(JA) 粘着シート
Abstract
(EN)
Provided is an adhesive sheet containing an adhesive layer. The adhesive layer contains: a polymer A constituted by a polymerized product of a monomer feedstock A; and a polymer B constituted by a polymerized product of a monomer feedstock B containing a monomer, having a polyorganosiloxane skeleton, and a (meth)acrylic monomer. The polymer B has an Mw of 7 × 104 or higher. The relationship between the adhesive strength N50 of the adhesive sheet as measured at 23°C after being applied to a stainless steel plate and kept at 50°C for 30 minutes and the adhesive strength N80 of the sheet as measured at 23°C after being applied to a stainless steel plate and kept at 80°C for 5 minutes satisfy the formula (N80/N50) ≥ 3.
(FR)
L'invention concerne une feuille adhésive contenant une couche adhésive. La couche adhésive contient : un polymère A constitué d'un produit polymérisé d'une charge monomère A ; et un polymère B constitué d'un produit polymérisé d'une charge monomère B contenant un monomère ayant un squelette polyorganosiloxane et un monomère (méth)acrylique. Le polymère B a une Mw de 7 × 104 ou plus. La relation entre la force d'adhérence N50 de la feuille adhésive, telle que mesurée à 23 °C après avoir été appliquée sur une plaque d'acier inoxydable et maintenue à 50 °C pendant 30 minutes, et la force d'adhérence N80 de la feuille telle que mesurée à 23 °C après avoir été appliquée sur une plaque d'acier inoxydable et maintenue à 80 °C pendant 5 minutes, satisfait à la formule (N80/N50) ≥ 3.
(JA)
粘着剤層を含む粘着シートが提供される。上記粘着剤層は、モノマー原料Aの重合物であるポリマーAと、ポリオルガノシロキサン骨格を有するモノマーおよび(メタ)アクリル系モノマーを含むモノマー原料Bの重合物であるポリマーBとを含む。上記ポリマーBのMwは7×10以上である。上記粘着シートは、ステンレス鋼板に貼り合わせて50℃に30分間保持した後に23℃において測定される粘着力N50と、ステンレス鋼板に貼り合わせて80℃で5分間加熱した後に23℃において測定される粘着力N80との関係が、次式:(N80/N50)≧3;を満たす。
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