发明名称 |
METHOD OF PREPARING FOAM USING A PARTIALLY FLUORINATED ALKANE HAVING A TERTIARY STRUCTURE AS A BLOWING AGENT |
摘要 |
A method for preparing polyurethane and polyisocyanurate foams which comprises reacting and foaming a mixture of ingredients which will react to form the polyurethane or polyisocyanurate foams in the presence of a blowing agent comprising a partially fluorinated alkane having four or five carbon atoms and a tertiary structure. The method is advantageous because partially fluorinated alkanes having a tertiary structure have zero ozone depletion potentials, are nonflammable, and have higher solvency toward polyols.
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申请公布号 |
US5130345(A) |
申请公布日期 |
1992.07.14 |
申请号 |
US19900546173 |
申请日期 |
1990.06.29 |
申请人 |
ALLIED-SIGNAL INC. |
发明人 |
LI, CHIEN C.;SUKORNICK, BERNARD |
分类号 |
C08J9/14 |
主分类号 |
C08J9/14 |
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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