发明名称 |
Polyester resins for polyurethane foams |
摘要 |
The machine processing character as well as the stress-strain properties of polyester polyurethane foam are improved by the use of a cross-linking polyol, a viscosity increasing dicarboxylic acid or anhydride such as phthalic anhydride, and by the use of specific minor amounts of poly(oxyethylene) glycol, in the esterification formula of foam grade polyester resins. A nonhydrophillic flexible polyester based polyurethane foam is produced.
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申请公布号 |
US4404295(A) |
申请公布日期 |
1983.09.13 |
申请号 |
US19820398459 |
申请日期 |
1982.07.14 |
申请人 |
WITCO CHEMICAL CORPORATION |
发明人 |
BERNSTEIN, CARL;STOGIS, JAMES;RIDDLE, TRAVIS;KUFRIN, ROBERT |
分类号 |
C08G18/42;C08G63/66;(IPC1-7):C08G18/14 |
主分类号 |
C08G18/42 |
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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