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Epoxy-modified polyols and polymer-polyols useful in the preparation of improved plastics, including polyurethane foams, elastomers and the like
Epoxy-modified polyols and polymer-polyols useful in the preparation of improved plastics, including polyurethane foams, elastomers and the like
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机译:环氧改性的多元醇和聚合物多元醇可用于制备改进的塑料,包括聚氨酯泡沫,弹性体等
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摘要
Polyurethane which is reaction product of mixture comprising polyisocyanate and polymer-polyol comprising reaction product of polyol of average molecular weight of at least 500 and that is essentially free of ethylenic unsaturation, epoxy co-reactant essentially free of ethylenic unsaturation, and at least one ethylenically unsaturated monomer reactive with free hydroxyl groups of the polyol and which has been polymerized in the presence of said polyol and epoxy or of an adduct of the polyol and epoxy by free radical addition polymerization to a substantially linear polymer having a molecular weight of at least 5000.
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