PHOTOPOLYMERISABLE LIQUID COMPOSITIONS

摘要

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