发明名称 |
Moisture resistant polyurethanes derived from non-aromatic diisocyanates |
摘要 |
The reduction in tensile strength exhibited in high humidity environments by "soft" polyurethanes prepared from aliphatic or cycloaliphatic diisocyanates can be substantially reduced if the molar ratio of diisocyanate and chain extender to isocyanate-reactive species other than said chain extender in the reaction mixtures from which said polyurethanes are prepared is at least 4.
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申请公布号 |
US4631329(A) |
申请公布日期 |
1986.12.23 |
申请号 |
US19850802880 |
申请日期 |
1985.11.29 |
申请人 |
DOW CORNING CORPORATION |
发明人 |
GORNOWICZ, GERALD A.;LEE, CHI-LONG |
分类号 |
C08G18/00;C08G18/61;C08G18/65;C08G18/75;(IPC1-7):C08G18/38 |
主分类号 |
C08G18/00 |
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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