发明名称 |
Method for the preparation of silicone-modified polyoxyalkylene polyethers and room temperature-curable compositions therewith |
摘要 |
The present invention provides a novel room temperature-curable composition based on a polyoxyalkylene polyether, e.g. polyoxypropylene, admixed with a curing agent which is very stable when kept in a dry atmosphere or in a hermetically sealed condition but is readily cured when exposed to atmospheric air containing moisture into a rubber-like elastomer. The polyoxyalkylene polyether is terminated at both molecular chain ends with organosilyl groups having alkenyloxy groups bonded to the silicon atoms and can be prepared by the addition reaction of an allyl-terminated polyoxyalkylene polyether with an organosilane or organopolysiloxane compound having at least one silicon-bonded hydrogen atom and at least one silicon-bonded alkenyloxy group in a molecule in the presence of a platinum catalyst.
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申请公布号 |
US4323488(A) |
申请公布日期 |
1982.04.06 |
申请号 |
US19800130565 |
申请日期 |
1980.03.14 |
申请人 |
SHIN-ETSU CHEMICAL COMPANY LIMITED |
发明人 |
TAKAGO, TOSHIO;ARAI, MASATOSHI;FUTATSUMORI, KOJI |
分类号 |
C08G65/336;C08G77/46;C08L3/12;C08L83/12;(IPC1-7):C08L91/00 |
主分类号 |
C08G65/336 |
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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