Photopolymerizable adhesive for preventing peeling and separatio

Details Photopolymerizable adhesive for preventing peeling and separatio Photopolymerizable adhesive for preventing peeling and separatio

1994-08-29

1996-01-16

Berman, Susan W.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Compositions to be polymerized by wave energy wherein said...

522103, 522121, 522152, 522153, 522102, C08F 250, C08F22026, C08F22034, G01D 1516

Patent

active

054848237

ABSTRACT:
A photopolymerizable adhesive comprises (A) an acrylic resin having groups represented by the formulae: --COOH, --OH and --NHCH.sub.2 OR (wherein R represents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms), a number average molecular weight of from 3,000 to 200,000 and a glass transition temperature of at least 70.degree. C., (B) a photopolymerizable oligomer containing at least one member selected from the group consisting of (a) an acrylate or a methacrylate of a novolak epoxy resin, (b) an acrylate or a methacrylate of a bisphenol epoxy resin and (c) an urethane acrylate of aromatic alcohol or cycloaliphatic alcohol, and (C) a photoinitiator capable of discharging radicals with the action of activation energy.

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