发明名称 |
Method for producing low-fuming rigid polyurethane foam |
摘要 |
It is to provide a method for producing a low-fuming rigid polyurethane foam, which is superior in initial activity at low temperature and requires a small amount of a stock liquid. A method for producing a rigid polyurethane foam, which comprises mixing (a) a polyisocyanate component with a polyol component comprising (b) a polyol mixture, (c) a catalyst and (d) a blowing agent, then foaming the mixture; wherein the polyisocyanate component (a) is polymethylenepolyphenyl polyisocyanate or a modified material thereof; the polyol mixture (b) comprises (b-1) an aromatic polyester polyol and (b-2) an aromatic polyether polyol; the catalyst (c) is at least one metallic catalyst; and the blowing agent (d) is an adduct of a primary or secondary amine compound with carbon dioxide.
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申请公布号 |
US5872156(A) |
申请公布日期 |
1999.02.16 |
申请号 |
US19980134064 |
申请日期 |
1998.08.13 |
申请人 |
SUMITOMO BAYER URETHANE LTD. |
发明人 |
INAZAWA, YASUO;ODANI, KEI |
分类号 |
C08G18/06;C08G18/00;C08G18/28;C08G18/32;C08G18/40;C08G18/42;C08G18/48;C08G18/66;C08G18/72;C08G18/76;C08G101/00;C08J9/12;(IPC1-7):C08G18/18;C08G18/34 |
主分类号 |
C08G18/06 |
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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