| 摘要 |
PURPOSE:To obtain the subject foam uniform and fine in foam and little in shrinkage when the amt. of trichloromonofluoromethane used is decreased, by using a plurality of specific compds. in the preparation of the subject foam by mixing a plurality of given starting materials. CONSTITUTION:A polyol compd. (e.g. SBU-P-0517 manufactured by Sumitomo Bayer Urethane Co., Ltd), an isocyanate (e.g., tolylene diisocyanate), a catalyst (e.g. dimethylcyclohexylamine and pentamethyldiethylenetriamine), trichloromonofluoromethane, and a foam stabilizer are mixed together as the starting materials for the preparation of the objective foam, wherein a polyoxyalkylenesilicone polymer is used as the foam stabilizer with further addition of phthalic anhydride to the starting materials. |
