METHOD FOR DECOMPOSING/RECOVERING UNSATURATED POLYESTER RESIN

摘要

PROBLEM TO BE SOLVED: To provide a method for decomposing/recovering an unsaturated polyester resin which permits decomposition, recovery and reuse of the unsaturated polyester resin. SOLUTION: The unsaturated polyester resin is hydrolyzed to depolymerize an unsaturated alkyd chain. The depolymerized resin is subsequently treated with a critical fluid to depolymerize a styrene chain. The unsaturated polyester resin is thus decomposed into a monomer or an oligomer. Then, the monomer or the oligomer is recovered. COPYRIGHT: (C)2005,JPO&NCIPI