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US4243755A Process for the manufacture of reinforced polyurethane foams 失效
制造增强聚氨酯泡沫的方法

Process for the manufacture of reinforced polyurethane foams
摘要:
The invention relates to a process for the manufacture of reinforced polyurethane foams based on the reaction of organic polyisocyanates and polyols in the presence of filler dispersions. These dispersions are prepared by in situ crushing of the filler in the polyisocyanate or polyol to a particle size of less than 7 microns.
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