PHOTOCURABLE RESIN COMPOSITION FOR THERMAL DECOMPOSITION MASTER MODEL MOLD OF PRECISION CASTING

摘要

The present invention relates to a photocurable composition for molding a thermal decomposition master model of precision casting. A photocurable composition made of an acrylate or methacrylate compound needed for manufacturing a thermal decomposition master model during precision casting has to pyrolyze the master model at high temperature when the master model is manufactured by injection molding or a three-dimensional printer and pyrolyzed in a mold. Also, hydrolysis speed is slow, and residue and gas remain after hydrolysis so that quality of a molded product drops. To this end, a photocurable composition for molding a thermal decomposition master model of precision casting is rapidly pyrolyzed at low temperature by inducing a methyl group to a main chain of the acrylate or methacrylate compound and forming a propylene group. Also, residue and gas do not remain after hydrolysis.