发明授权
US4133781A Smoke-retardant polyisocyanurate foam 失效
阻燃聚异氰脲酸酯泡沫

Smoke-retardant polyisocyanurate foam
摘要:
A smoke-retardant polyisocyanurate foam which contains an organosilicate having hydroxypolyoxyalkylene group which is obtained by reacting a polyoxyalkyleneglycol with at least one of metallic silicon, halosilicon compounds and lower alkyl silicates.
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