发明名称 |
Process for production of low density water-blown rigid foams with flow and dimensional stability |
摘要 |
The invention provides a methods for making water-blown closed cell rigid foams comprising using as a polymer base a polyol selected from the group consisting of: (a) a polyester polyol with an average functionality of at least 1.6 and an OH value of at least 200; and (b) a polyether polyol with an average functionality of at least 2 and an OH value of at least 200. The invention also provides water-blown closed cell rigid foams comprising a polymer base selected from the group consisting of: (a) a polyester polyol with an average functionality of at least 1.6 and an OH value of at least 200; and (b) a polyether polyol with an average functionality of at least 2 and an OH value of at least 200.
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申请公布号 |
US5420169(A) |
申请公布日期 |
1995.05.30 |
申请号 |
US19940222073 |
申请日期 |
1994.04.04 |
申请人 |
STEPAN COMPANY |
发明人 |
SCHUMACHER, DONALD W.;MAGNUS, GEORGE;MOSTER, JOANNE M. |
分类号 |
C08G18/18;C08G18/40;C08G18/42;C08G18/48;C08G18/63;(IPC1-7):C08G18/06 |
主分类号 |
C08G18/18 |
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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