发明名称 |
Method for producing open cell rigid polyurethane foam |
摘要 |
A method of producing an open cell rigid polyurethane foam which comprises reacting a polymethylene polyphenylisocyanate prepolymer with a polyol at an NCO/OH equivalent ratio of 1.3 to 3.0 by use of a blowing agent substantially comprising water in the presence of a catalyst, a foam stabilizer and a cell opening agent.
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申请公布号 |
US5457138(A) |
申请公布日期 |
1995.10.10 |
申请号 |
US19920989561 |
申请日期 |
1992.12.11 |
申请人 |
TAKEDA CHEMICAL INDUSTRIES, LTD. |
发明人 |
YUGE, KIYOHIRO;MURAMATSU, HITOSHI |
分类号 |
C08G18/10;C08G18/76;C08G18/80;C08J9/02;(IPC1-7):C08J9/08 |
主分类号 |
C08G18/10 |
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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