| 摘要 |
PURPOSE:To provide the title foam which is used for a vehicle, a building material, furniture, etc., and which can be molded in a shorter time, has a density changable more widely, and can be formed into a desired shape more freely than the conventional unsatd. polyester resin foam. CONSTITUTION:The title foam is prepd. by thermally blowing a compsn. comprising an unsatd. polyester resin, a crosslinker, a polymn. initiator, and a blowing agent. |
