发明名称 |
WERKWIJZE TER BEREIDING VAN NIEUWE POLYSILOXAN- -POLYOXYALKYLEEN-COPOLYMEREN. |
摘要 |
The invention relates to a method of making branched polysiloxane-polyoxyalkylene copolymers and to their use as stabilizers in the production of polyurethane foam plastics. The copolymers are made by reacting specified organopolysiloxanes with polyisocyanates, heat treating the NCO-containing addition products to cause branching and reacting the branched NCO-containing addition products with monofunctional polyethers. The copolymers can be used to stabilize polyurethane foam reaction mixtures. |
申请公布号 |
NL7614355(A) |
申请公布日期 |
1977.06.28 |
申请号 |
NL19760014355 |
申请日期 |
1976.12.23 |
申请人 |
BAYER AKTIENGESELLSCHAFT TE LEVERKUSEN- -BAYERWERK, BONDSREPUBLIEK DUITSLAND. |
发明人 |
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分类号 |
C08G18/00;C08G18/10;C08G18/61;C08G77/46;C08G81/00;C08J9/00;(IPC1-7):08G77/46 |
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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