| 摘要 |
The invention relates to a polyol composition comprising by weight 60-97% of b1) a polyoxyethylene-polyoxypropylene polyol, having a functionality of 2-6, with 10-25% tipped EO, 3-40% of b2) a polyoxyethylene-polyoxypropylene polyol, having a functionality of 2-6, with 20-50% total EO and 10-20% tipped EO; and 0-25% of b3) a polyol, having a functionality of 2-6, with at least 50% random EO. The invention also relates to a process for preparing a flexible polyurethane foam by reacting a) a polyisocyanate composition; b) a polyol composition of the invention; c) water; and d) additives and auxiliaries known per se. The invention finally relates to a reaction system comprising A) a polyisocyanate and B) an isocyanate-reactive component comprising the polyol of the invention. |
