发明名称 |
Blowing reaction catalyst composition that provides cell opening of the resulting polyurethane foam |
摘要 |
A method for preparing a polyurethane foam which comprises reacting inorganic polyisocyanate and a polyol in the presence of a catalyst composition comprising a blowing catalyst and a gelling catalyst, the improvement which comprises employing a blowing catalyst consisting essentially of (a) 25 to 80 wt % pentamethyldiethylenetriamine and (b) 20 to 75 wt % bis(dimethylaminopropyl)methylamine. The catalyst composition provides the resulting polyurethane foam with improved breathability.
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申请公布号 |
US5057480(A) |
申请公布日期 |
1991.10.15 |
申请号 |
US19910667998 |
申请日期 |
1991.03.12 |
申请人 |
AIR PRODUCTS AND CHEMICALS, INC. |
发明人 |
PETRELLA, ROBERT G. |
分类号 |
C08G18/18 |
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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