发明名称 |
Carbodiimide-isocyanurate all water blown open celled foam |
摘要 |
A polycarbodiimide-polyisocyanurate foam is prepared by reacting (A) mixture of a polyol blend comprising (a) 25 to 100% of an aromatic polyester polyol having the following structure: <IMAGE> where n=1, 2, or 3 and having hydroxyl number 150 to 330, (b) 0 to 35% of a flexible polyether polyol with hydroxyl number 20 to 70, (c) 0 to 25% of a toluene diamine ethoxylated polyol, optionally with some propoxylate, and having hydroxyl number 330 to 480, (d) 0 to 25% of a nonyl phenol ethoxylate and having hydroxyl number 70 to9 150, and with surfactant, catalyst, and water; and reacting with (B) a polyphenyl polymethylene polyisocyanate such that the mixture of A is reacted with B at a 1:1 by volume mix ratio.
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申请公布号 |
US5214076(A) |
申请公布日期 |
1993.05.25 |
申请号 |
US19920946596 |
申请日期 |
1992.09.18 |
申请人 |
TIDESWELL, RICHARD B.;COSTA, JR., J. S. |
发明人 |
TIDESWELL, RICHARD B.;COSTA, JR., J. S. |
分类号 |
C08G18/08;C08G18/28;C08G18/32;C08G18/48;C08G18/66;C08G18/76 |
主分类号 |
C08G18/08 |
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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