发明公开
EP0371680A1 Method for preparing polyurea-polyurethane flexible foams
失效
Verfahren zur Herstellung von Polyharnstoff-Polyurethanweichschäumen。
- 专利标题： Method for preparing polyurea-polyurethane flexible foams
- 专利标题（中）： Verfahren zur Herstellung von Polyharnstoff-Polyurethanweichschäumen。
-
申请号： EP89312087.3申请日： 1989-11-21
-
公开(公告)号： EP0371680A1公开(公告)日： 1990-06-06
- 发明人: Frigo, Roberto , Bagaglio, Gian-Carlo , Verhelst, Gabriel , de Witte, Mireille
- 申请人： IMPERIAL CHEMICAL INDUSTRIES PLC , ATLAS EUROPOL SpA
- 申请人地址： Imperial Chemical House, Millbank London SW1P 3JF GB
- 专利权人： IMPERIAL CHEMICAL INDUSTRIES PLC,ATLAS EUROPOL SpA
- 当前专利权人： IMPERIAL CHEMICAL INDUSTRIES PLC,ATLAS EUROPOL SpA
- 当前专利权人地址： Imperial Chemical House, Millbank London SW1P 3JF GB
- 代理机构： Baken, Philippus Johannes L. H.
- 优先权： GB8827589 19881125; GB8923354 19891017
- 主分类号： C08G18/65
- IPC分类号： C08G18/65
摘要：
A method to prepare polyurethane and/or polyurea flexible foams which comprises reacting :
A. an organic polyisocyanate composition
B. at least one high Mw isocyanate-reactive compound
C₁. an amino-chain extender of Mw below 1000 having at least 2 amino groups of which at least one is directly attached to a cyclic hydrocarbon residue, in an amount of less than 1 % by wt of high Mw isocyanate-reactive compound(s) or
C₂. a mixture of at least 2 chain extenders wherein at least one is an amino chain extender of Mw below 1000, having at least 2 amino groups of which at least one is directly attached to a cyclic hydrocarbon residue, said mixture being used in an amount of 0.1 % to 10 % by wt of high Mw isocyanate-reactive compound(s)
D. H₂O
E. optionally catalysts
F. optionally further blowing agents which are different from H₂O
G. optionally further conventional additives
A. an organic polyisocyanate composition
B. at least one high Mw isocyanate-reactive compound
C₁. an amino-chain extender of Mw below 1000 having at least 2 amino groups of which at least one is directly attached to a cyclic hydrocarbon residue, in an amount of less than 1 % by wt of high Mw isocyanate-reactive compound(s) or
C₂. a mixture of at least 2 chain extenders wherein at least one is an amino chain extender of Mw below 1000, having at least 2 amino groups of which at least one is directly attached to a cyclic hydrocarbon residue, said mixture being used in an amount of 0.1 % to 10 % by wt of high Mw isocyanate-reactive compound(s)
D. H₂O
E. optionally catalysts
F. optionally further blowing agents which are different from H₂O
G. optionally further conventional additives
公开/授权文献
- EP0371680B1 Method for preparing polyurea-polyurethane flexible foams 公开/授权日：1993-12-22
信息查询
