发明名称 |
PRODUCTION OF EXPANDED SYNTHETIC RESIN |
摘要 |
PURPOSE:To obtain the subject resin without a fear of destroying ozonosphere by reacting an active hydrogen compound with a polyisocyanate compound in the presence of a specific low-boiling halogenated hydrocarbon-based foaming agent. CONSTITUTION:An active hydrogen compound (e.g. polyether-based polyol) having >=2 active hydrogen-containing functional groups reactive with isocyanate groups is reacted with a polyisocyanate compound (e.g. tolylene diisocyanate) in the presence of a low-boiling halogenated hydrocarbon-based foaming agent. In the process, a mixed foaming agent composed of CCl3F and CCl2FCH3 is used as the above mentioned foaming agent. |
申请公布号 |
JPH02263841(A) |
申请公布日期 |
1990.10.26 |
申请号 |
JP19890084021 |
申请日期 |
1989.04.04 |
申请人 |
ASAHI GLASS CO LTD |
发明人 |
AOYANAGI MINAKO;KAMEMURA ICHIRO;ODAKA HIROMITSU;YAMAGUCHI YOSHIYUKI |
分类号 |
C08J9/14;C08G18/00;C08G18/42;(IPC1-7):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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