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US5804099A Polysiloxane-polyoxyethylene-polyoxypropylene triblock copolymers and defoaming compounds containing them 失效
聚硅氧烷 - 聚氧乙烯 - 聚氧丙烯三嵌段共聚物和含有它们的消泡化合物

Polysiloxane-polyoxyethylene-polyoxypropylene triblock copolymers and
defoaming compounds containing them
摘要:
Polysiloxane-polyoxyethylene-polyoxypropylene triblock copolymers having the general formula: ##STR1## as well as compounds for the defoaming of aqueous dispersion paints that are disclosed contain the copolymers as effective defoaming components.
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