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Polymer/polyol compositions made from preformed polymer/polyols, processes for making same and processes for making polyurethane products therefrom
Polymer/polyol compositions made from preformed polymer/polyols, processes for making same and processes for making polyurethane products therefrom
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机译:由预制的聚合物/多元醇制得的聚合物/多元醇组合物,其制备方法和由其制备聚氨酯产品的方法
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摘要
Novel improved polymer/polyol composition made by polymerizing one or more ethylenically unsaturated monomers in situ in a blend of a polyol having a number average molecular weight of at least about 76 and a preformed polymer/polyol prepared by the in situ polymerization of one or more polymerizable ethylenically unsaturated monomers in a polyol, said preformed polymer/polyl having a viscosity of not more than 40,000 cps at 25 DEG C., to form a highly stable dispersion of small polymer particles in said polyols, wherein said preformed polymer/polyol and said improved polymer/polyol composition are more stable than the polymer/polyol having the same chemical composition as said improved polymer/polyol composition but made in the absence of said preformed polymer/polyol. The novel compositions are highly useful in the production of polyurethane products.
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