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1. WO2020136614 - MULTI-LAYER ADHESIVES AND ARTICLES

Publication Number WO/2020/136614
Publication Date 02.07.2020
International Application No. PCT/IB2019/061399
International Filing Date 27.12.2019
IPC
C09J 7/30 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
CPC
C09J 2301/204
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
2301Additional features of adhesives in the form of films or foils
20characterized by the structural features of the adhesive itself
204the adhesive coating being discontinuous
C09J 2301/208
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
2301Additional features of adhesives in the form of films or foils
20characterized by the structural features of the adhesive itself
208the adhesive layer being constituted by at least two or more adjacent or superposed adhesive layers, e.g. multilayer adhesive
C09J 2301/302
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
2301Additional features of adhesives in the form of films or foils
30characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier
302the adhesive being pressure-sensitive, i.e. tacky at temperatures inferior to 30°C
C09J 2301/414
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
2301Additional features of adhesives in the form of films or foils
40characterized by the presence of essential components
414presence of a copolymer
C09J 2433/00
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
2433Presence of (meth)acrylic polymer
C09J 7/30
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
Applicants
  • 3M INNOVATIVE PROPERTIES COMPANY [US]/[US]
Inventors
  • SHERMAN, Audrey A.
  • ELLIS, Mark F.
  • KELLEN, Barbara L.
  • CADALBERT, David A.
Agents
  • OLOFSON, Jeffrey M.,
  • BLANK, Colene H.,
  • FLORCZAK, Yen Tong,
  • HARTS, Dean M. ,
  • LEVINSON, Eric D.,
  • NOWAK, Sandra K.,
  • MAKI, Eloise J.,
  • RINGSRED, Ted K.,
Priority Data
62/785,45027.12.2018US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) MULTI-LAYER ADHESIVES AND ARTICLES
(FR) ADHÉSIFS MULTICOUCHES ET ARTICLES
Abstract
(EN)
Adhesive articles with multi-layer adhesive constructions include a substrate and a multi-layered adhesive. The multi-layered adhesive includes a layer of a first adhesive in contact with the surface of the substrate, and a layer of siloxane-based pressure sensitive adhesive in contact with the first adhesive. The siloxane-based pressure sensitive adhesive includes a siloxane-(meth)acrylate co-polymer. The thickness of the siloxane-based pressure sensitive adhesive layer is less than the thickness of the first adhesive layer.
(FR)
Des articles adhésifs dotés de constructions adhésives multicouches comprennent un substrat et un adhésif multicouche. L'adhésif multicouche comprend une couche d'un premier adhésif en contact avec la surface du substrat, et une couche d'adhésif sensible à la pression à base de siloxane en contact avec le premier adhésif. L'adhésif sensible à la pression à base de siloxane comprend un copolymère de siloxane-(méth) acrylate. L'épaisseur de la couche d'adhésif sensible à la pression à base de siloxane est inférieure à l'épaisseur de la première couche adhésive.
Latest bibliographic data on file with the International Bureau