发明名称 |
A PROCESS FOR THE PRODUCTION OF OPEN-CELL, COLD-FORMABLE RIGID POLYURETHANE FOAMS AND THEIR USE FOR THE PRODUCTION OF MOLDED ARTICLES |
摘要 |
Open-celled, cold-formable polyurethane foams are made by reacting a specific crude MDI with a polyol component which includes hydroxyl polyethers having an OH number of from about 28 to about 600, a difunctional phthalic acid hydroxyl polyester having an OH number of from about 150 to about 440, glycerol, a blowing agent (water is preferred), a tertiary amine catalyst and optionally a silicone. foam stabilizer. These foams generally have a density of from about 23 to about 30 kg/m3 and may be molded into articles having intricate shapes (e.g., roofs for automobiles) using known-cold-forming techniques.
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申请公布号 |
CA2032737(C) |
申请公布日期 |
1999.07.13 |
申请号 |
CA19902032737 |
申请日期 |
1990.12.19 |
申请人 |
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发明人 |
KONIG, EBERHARD;WEBER, CHRISTIAN |
分类号 |
B32B5/24;B32B37/10;B60R13/02;C08G18/08;C08G18/18;C08G18/28;C08G18/40;C08G18/42;C08G18/48;C08G18/66;C08G18/72;C08G18/76;C08G101/00;C08J9/02;C08L75/08;D06N7/00;(IPC1-7):C08G18/70;B29C44/32;B32B17/10;B32B31/20 |
主分类号 |
B32B5/24 |
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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