发明名称 |
Hardener composition for the production of polyurethane shaped articles |
摘要 |
The invention relates to compositions comprising a) a polyol containing on average from 3 to 8 hydroxyl groups per molecule and having a mean molecular weight per hydroxyl group of up to 150; b) a polyether-polyol containing on average from 2 to 3 hydroxyl groups per molecule and having a mean molecular weight per hydroxyl group of from 150 to 500, and c) a poly(oxyalkylene)polyamine containing on average from 2 to 4 amino groups per molecule and having a mean total molecular weight of between 1000 and 3000. The compositions described are distinguished by a low tendency to separate, even on extended storage. Reaction mixtures of the above compositions as curing agents and polyisocyanates from the diphenylmethane series cure without passing through a brittle phase. Mouldings formed have good mechanical properties. |
申请公布号 |
ZA9305470(B) |
申请公布日期 |
1994.02.03 |
申请号 |
ZA19930005470 |
申请日期 |
1993.07.29 |
申请人 |
CIBA-GEIGY A.G. |
发明人 |
MARTIN SPITZER;HANS FREISTAEDTER |
分类号 |
C08G18/48;C08G18/50;C08G18/66;C08G18/76;C08J5/00;C08L71/02 |
主分类号 |
C08G18/48 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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