发明名称 |
Preparation of urethane elastomers from epoxy resin, polyols and polyisocyanates using a catalyst composition of an organometal salt with either nitrogen or phosphorus compounds |
摘要 |
Elastomers are prepared from a mixture comprising a 1600 equivalent weight polyether polyol such as a glycerine initiated polyoxypropylene glycol end-capped with ethylene oxide, a diol such as diethylene glycol, a liquid polyepoxide such as the diglycidyl ether of bisphenol A and a catalyst mixture containing a quaternary ammonium or phosphonium salt and an organometal salt of the metal tin or lead such as tetrabutyl ammonium bromide and lead octoate.
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申请公布号 |
US4118373(A) |
申请公布日期 |
1978.10.03 |
申请号 |
US19770793569 |
申请日期 |
1977.05.04 |
申请人 |
THE DOW CHEMICAL COMPANY |
发明人 |
ORVIK, JON A. |
分类号 |
C08G18/16;C08G18/66;C08L75/08;(IPC1-7):C08G18/18 |
主分类号 |
C08G18/16 |
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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