Invention Application
- Patent Title: PROCESS FOR PREPARING A POLYURETHANE FOAM
- Patent Title (中): 制备聚氨酯泡沫的方法
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Application No.: US13394208Application Date: 2010-09-07
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Publication No.: US20120214888A1Publication Date: 2012-08-23
- Inventor: Els Van Eetvelde , Michiel Barend Eleveld , Waltherus Petrus Casparus Mineur , Christophe Martin Swan , Tiew Imm Tan
- Applicant: Els Van Eetvelde , Michiel Barend Eleveld , Waltherus Petrus Casparus Mineur , Christophe Martin Swan , Tiew Imm Tan
- Priority: EP09169634.4 20090907
- International Application: PCT/EP10/63080 WO 20100907
- Main IPC: C08J9/228
- IPC: C08J9/228 ; C09K3/00 ; C08G18/48
Abstract:
The invention relates to a process for preparing a polyurethane foam, wherein a polyether polyol and a polyisocyanate are reacted in the presence of: a blowing agent; of from 1 to 30 ppmw, based on the polyether polyol, of metals derived from a composite metal cyanide complex catalyst; and of from 0.5 to 100 ppmw, based on the polyether polyol, of a phosphoric acid compound comprising a phosphoric acid selected from orthophosphoric acid, polyphosphoric acid and polymetaphosphoric acid, and/or a partial ester of such a phosphoric acid.
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