EP0429250A2
Expired / Lapsed
EP
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Tacky photopolymerizable adhesive compositions
Assignee: 3M Co
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Filing: 1990-11-15
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Granted: —
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Expires: 2010-11-15
Abstract
Abstract The presence of organic materials having nitrile or vinyl ether groups thereon extends the open time of acid initiated epoxide resin compositions.
Inventors
- 👤 Stefan C/O 3M Canada Inc. Weigl
- 👤 Kam C. C/O 3M Canada Inc. Wu
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 06:24
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C09; C09J; C09J163/00; C08L; C08L2666/00; C08L2666/02; C08L2666/04
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
71 words
A photosensitive, curable epoxy resin adhesive composition comprising at least one epoxide resin, a photoinitiator for said epoxide resin which generates a Lewis acid upon initiation, and an epoxide cure retardant selected from the group consisting of an organic material substituted with nitrile or vinyl ether in sufficient amount to extend the open time for said epoxide resin composition to at least twice that of the composition without said cure retardant.
Claim 2
Dependent Claim
71 words
A photosensitive, curable epoxy resin adhesive composition comprising at least one epoxide resin, a photoinitiator for said epoxide resin which generates a Lewis acid upon initiation, and an epoxide cure retardant selected from the group consisting of an organic material substituted with nitrile or vinyl ether in sufficient amount to extend the open time for said epoxide resin composition to at least twice that of the composition without said cure retardant.
Claim 3
Dependent Claim
62 words
A photosensitive, curable epoxide resin adhesive composition comprising at least one epoxide resin, a photoinitiator for said epoxide resin which generates a Lewis acid upon initiation, and an epoxide cure retardant selected from the group consisting of an organic material substituted with nitrile or vinyl ether groups in a weight percent of from 0.5 to 35% by weight of said epoxide resin.
Claim 4
Dependent Claim
62 words
A photosensitive, curable epoxide resin adhesive composition comprising at least one epoxide resin, a photoinitiator for said epoxide resin which generates a Lewis acid upon initiation, and an epoxide cure retardant selected from the group consisting of an organic material substituted with nitrile or vinyl ether groups in a weight percent of from 0.5 to 35% by weight of said epoxide resin.
Claim 5
Dependent Claim
20 words
The composition of claimS 1 or 2 wherein said photoinitiator comprises a photosensitive onium photoinitiator capable of curing epoxy resins.
Claim 6
Dependent Claim
20 words
The composition of claims 1 or 2 wherein said photoinitiator is selected from the group of iodonium and sulfonium photoinitiators:
Claim 7
Dependent Claim
18 words
The composition of claims 1 or 2 wherein said cure retardant is an organic compound with nitrile groups.
Claim 8
Dependent Claim
38 words
The composition of claim 3 wherein said cure retardant is an organic polymeric compound with nitrile groups having a molecular weight between 1000 and 5000 in an amount of 1 to 50% by weight of said epoxy resin.
Claim 9
Dependent Claim
16 words
The composition of claims 1 or 2 wherein said cure retardant comprises a vinyl ether material.
Claim 10
Dependent Claim
14 words
The composition of claim 3 wherein said cure retardant comprises a vinyl ether material.
Claim 11
Dependent Claim
14 words
The composition of claim 4 wherein said cure retardant comprises a vinyl ether material.
Claim 12
Dependent Claim
17 words
The composition of claims 1 or 2 wherein said cure retardant comprises a polymer bearing nitrile groups.
References Cited (Backward Citations)
No citation records indexed.
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