| abstract |
PURPOSE: The titled resin composition which difficultly undergoes thermal embrittlement (caused by heating at about 150°C for several hours), prepared by mixing polyethylene terephthalate resin with a cation-polymerizable compound and a photopolymerization initiator at a predetermined ratio. n CONSTITUTION: An ultraviolet-curable resin composition is obtained by mixing a resin based on polyethylene terephthalate (which may be used in conjunction with about 30wt% or below polybutylene terephthalate resin or polycarbonate resin) with 50wt% or below, based on said resin, cation-polymerizable compound having a plurality of oxirane rings (e.g., bisphenol A epoxy resin) and 0.1W 10wt%, based on said polymerizable compound, photopolymerizable initiator (i.e., a compound which can release a Lewis acid catalyst upon irradiation with ultraviolet rays, e.g., aromatic diazonium salt). n COPYRIGHT: (C)1985,JPO&Japio |