Foamable polyurethane compositions with a good flow behaviour and process for the preparation of foamed polyurethane mouldings

摘要

A foamable polyurethane resin composition (I) comprises (A) 100 wt. % of a polyol component consisting of (A1) 50-99 wt % castor oil (A2) 0.9-49.9 wt.% chain extenders and/or cross-linking agents with reactive hydrogen groups (A3) 0.1-5 wt.% water (A4) optionally processing aids and additives such as catalysts, release agents, cell stabilisers and defoamers and (B) an isocyanate component and (C) optionally additives and fillers. Also claimed is a moulded foam article (II) (density 0.01-1.1 tonne/m3) prepared from (I) and a process for making (II).