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1. WO2022090833 - AN ISOLATOR FOR PROTECTING DISSIMILAR SUBSTRATES FROM GALVANIC CORROSION

Publication Number WO/2022/090833
Publication Date 05.05.2022
International Application No. PCT/IB2021/059006
International Filing Date 30.09.2021
IPC
C09J 7/24 2018.1
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
20characterised by their carriers
22Plastics; Metallised plastics
24based on macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
C09J 7/30 2018.1
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
B32B 7/12 2006.1
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
CPC
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
C09J 2301/312
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
312parameters being the characterizing feature
C09J 2427/006
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
2427Presence of halogenated polymer
006in the substrate
C09J 2463/00
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
2463Presence of epoxy resin
C09J 7/245
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
20characterised by their carriers
22Plastics; Metallised plastics
24based on macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
245Vinyl resins, e.g. polyvinyl chloride [PVC]
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
  • SALNIKOV, Dmitriy
  • SCHMID, Matthew J.
  • BOLTON, Justin M.
Agents
  • KNECHT, Harold C., III
  • BLANK, Colene H.,
  • EHRICH, Dena M.
  • GEISE, C. Michael,
  • LEVINSON, Eric D.,
  • NOWAK, Sandra K.,
Priority Data
63/108,82502.11.2020US
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) AN ISOLATOR FOR PROTECTING DISSIMILAR SUBSTRATES FROM GALVANIC CORROSION
(FR) ISOLATEUR DESTINÉ À PROTÉGER DES SUBSTRATS DISSEMBLABLES CONTRE LA CORROSION GALVANIQUE
Abstract
(EN) An isolator for protecting adjacently located dissimilar material substrates from galvanic corrosion. The isolator includes a backing layer having opposite major surfaces and a thickness, and an optional uncured adhesive layer having one major surface bonded to one of the major surfaces of the backing layer and another major exposed surface for being adhesively bondable to a surface of one of the dissimilar material substrates. In its cured state, the adhesive layer and the backing layer are each not permanently compressible. At least one or both of the cured adhesive layer and the backing layer is polar solvent resistant enough to prevent polar solvent transported metal ions from passing all the way through its thickness. In preferred embodiments the backing layer comprises a tetrafluoroethylene, hexafluoropropylene and vinylidene fluoride (THV) material, and the adhesive layer comprises an epoxy resin.
(FR) L'invention concerne un isolateur destiné à protéger des substrats de matériau dissemblables situés de manière adjacente contre la corrosion galvanique. L'isolateur comprend une couche de support ayant des surfaces principales opposées et une épaisseur, et une couche adhésive non durcie facultative ayant une surface principale liée à l'une des surfaces principales de la couche de support et une autre surface exposée principale destinée à être collée sur une surface de l'un des substrats de matériau dissemblables. Dans leur état durci, la couche adhésive et la couche de support ne sont pas compressibles de manière permanente. Au moins l'une ou les deux parmi la couche adhésive durcie et la couche de support sont suffisamment résistantes au solvant polaire pour empêcher les ions métalliques transportés par solvant polaire de passer à travers leur épaisseur. Dans des modes de réalisation préférés, la couche de support comprend un matériau de tétrafluoroéthylène, d'hexafluoropropylène et de fluorure de vinylidène (THV), et la couche adhésive comprend une résine époxyde.
Latest bibliographic data on file with the International Bureau