发明名称 |
RIGID CELLULAR FOAMS AND PRODUCTION THEREOF |
摘要 |
<p>Rigid cellular foam compositions are prepared by catalytically condensing an organic polyisocyanate in the presence of a blowing agent, from 0.01 to 0.5 equivalent per equivalent of isocyanate of a primary hydroxy-terminated polyoxyalkylene or polyester polyol and a catalyst system comprising (a) furfuryl alcohol or methanol, (b) a tertiary amine trimerization catalyst, and (c) a urethane catalyst. The resulting foam compositions are characterized by carbodiimide, isocyanurate and urethane linkages and exhibit unexpectedly low friability, improved strength properties, and good flame retardancy.</p> |
申请公布号 |
CA1024299(A) |
申请公布日期 |
1978.01.10 |
申请号 |
CA19750227139 |
申请日期 |
1975.05.16 |
申请人 |
BASF WYANDOTTE CORPORATION |
发明人 |
NARAYAN, THIRUMURTI L.;CENKER, MOSES |
分类号 |
C08G18/00;C08G18/02;C08G18/09;C08G18/16;C08G18/28;C08G18/67;(IPC1-7):08G/ |
主分类号 |
C08G18/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|