发明名称 |
Method for manufacturing polyurethane foam |
摘要 |
A method for manufacturing polyurethane foam by mixing (a) polyisocyanate, (b) polyol, (c) blowing agent, (d) catalyst and, as required (e) surface active agent, filler, or other such additive, the said method being characterized in that the polyisocyanate (a) is a prepolymer with isocyanate end groups produced from a polyester polyol and a blended polyisocyanate component comprising 45-95 weight % of diphenylmethane diisocyanate and 55-5 weight % of a polymethylene polyphenyl polyisocyanate with a functionality of 3 or more.
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申请公布号 |
US4792575(A) |
申请公布日期 |
1988.12.20 |
申请号 |
US19870004071 |
申请日期 |
1987.01.16 |
申请人 |
IMPERIAL CHEMICAL INDUSTRIES PLC |
发明人 |
TAKAO, SHOJI;YAMASHITA, HIDEO;SUETSUGU, KATSUYOSHI;TOYAMA, YASUNORI;SASAKI, KAZUKI |
分类号 |
C08G18/10;C08G18/42;C08G18/76;(IPC1-7):C08G18/30 |
主分类号 |
C08G18/10 |
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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