发明名称 Process for the preparation of flexible polyurethane foams
摘要 A process for the preparation of flexible polyurethane foams comprising the steps of : (a) bringing together a polyol component, a polyisocyanate component, a blowing agent comprising liquid carbon dioxide, a suitable catalyst and optionally ancillary chemicals at sufficient pressure to maintain the carbon dioxide in a liquid state, and (b) releasing the pressure and allowing the mixture obtained in step (a) to react into a flexible polyurethane foam. The polyol component comprises a polymer polyol consisting of at least one polyether polyol having an average nominal functionality of at least 2.5 with dispersed therein from 2 to 50 wt% of polymer particles based on total weight of polymer polyol. The particle size of none of the polymer particles exceeds 50 micron.
申请公布号 NZ512682(A) 申请公布日期 2003.07.25
申请号 NZ20000512682 申请日期 2000.01.18
申请人 SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B 发明人 MAAS, WILFRIDUS PETRUS MARIA;VANDICHEL, JEAN-CLAUDE NOEL ELIANE
分类号 C08G18/46;C08G18/48;C08G18/63;C08G101/00;C08J9/00;C08J9/12;C08L75/04;(IPC1-7):C08J9/12 主分类号 C08G18/46
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