发明名称 Hardener composition for the production of polyurethane shaped articles
摘要 The invention relates to compositions comprising a) a polyol having on average 3 to 8 hydroxyl groups per molecule and an average molecular weight per hydroxyl group of up to 150; b) a polyether-polyol having on average 2 to 3 hydroxyl groups per molecule and an average molecular weight per hydroxyl group of 150 to 500 and c) a poly(oxyalkylene)polyamine having on average 2 to 4 amino groups per molecule and an average total molecular weight of between 1000 and 3000. The compositions described are distinguished by a low tendency to demix, even during prolonged storage. Reaction mixtures of the compositions described, as hardeners, and polyisocyanates of the diphenylmethane series cure fully without passing through a brittle phase. The shaped articles formed have good mechanical properties.
申请公布号 US5340900(A) 申请公布日期 1994.08.23
申请号 US19930096136 申请日期 1993.07.22
申请人 CIBA-GEIGY CORPORATION 发明人 SPITZER, MARTIN;FREISTAEDTER, HANS
分类号 C08G18/48;C08G18/50;C08G18/66;C08G18/76;C08J5/00;C08L71/02;(IPC1-7):C08L75/00 主分类号 C08G18/48
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