Photopolymerisable liquid compositions for forming heat curable

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Compositions to be polymerized by wave energy wherein said...

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522 95, 522 94, 522 16, 522105, 522106, 522111, 522 40, 522 44, 525134, 528 87, 528129, 528219, C08F 248, C09J12914, C09J16707, C09J17516

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054516161

ABSTRACT:
A liquid composition which on exposure to actinic radiation polymerizes to form a heat-curable solid film adhesive, said composition comprising (A) a heat-curable phenol-aldehyde resol resin, (B) a photopolymerizable polyurethane or polyester having, on average, more than one polymerizable acrylic group per molecule, or a mixture of said polyurethane and said polyester, (C) a photopolymerization initiator for (B) and (D) a polyvinylacetal.

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