发明名称 |
METHOD FOR PREPARING POLYMERIC FOAMS AND CHEMICAL COMPOSITIONS USED THEREFOR |
摘要 |
A method for the preparation of rigid foams by reacting an organic polyisocyanate with an isocyanate-reactive material in the presence of a blowing promoter characterised in that the isocyanate-reactive material comprises at least one isocyanate-reactive cyclic carbonate or isocyanate-reactive cyclic urea, the reaction being performed in the presence of an inert insoluble organic liquid which is present as the disperse phase of an emulsion or a microemulsion, and in the presence of a metal salt catalyst. 0801at1/92/av - BOT
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申请公布号 |
CA2060530(A1) |
申请公布日期 |
1992.08.05 |
申请号 |
CA19922060530 |
申请日期 |
1992.02.03 |
申请人 |
IMPERIAL CHEMICAL INDUSTRIES PLC |
发明人 |
GILLIS, HERBERT R.;POSTEMA, AALDRIK R.;STANSSENS, DIRK;RANDALL, DAVID;DE VOS, RIK |
分类号 |
C08G18/30;C08G18/32;C08G18/38;C08G18/65;C08G101/00;C08J9/00;C08J9/02;C08J9/14;(IPC1-7):C08G18/22 |
主分类号 |
C08G18/30 |
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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