首页>
外国专利>
ADDITIVE FOR ADJUSTING THE GLASS TRANSITION TEMPERATURE OF VISCO-ELASTIC POLYURETHANE SOFT FOAMS
ADDITIVE FOR ADJUSTING THE GLASS TRANSITION TEMPERATURE OF VISCO-ELASTIC POLYURETHANE SOFT FOAMS
展开▼
机译:调整粘弹性聚氨酯软泡沫玻璃的转变温度的添加剂
展开▼
页面导航
摘要
著录项
相似文献
摘要
The present invention is directed to the use of a disalt of malic acid in the production of a polyurethane foam to lower the glass transition temperature of the polyurethane foam obtained, wherein the disalt of malic acid is added to the reaction mixture comprising at least a polyol component, an isocyanate component, a catalyst to catalyse urethane or isocyanurate bond formation, an optional blowing agent and optionally further additives, and also to a polyurethane foam having a glass transition temperature of 20° C. to 15° C., which polyurethane foam is characterized in that it comprises disalts of malic acid or reaction products thereof with an isocyanate component, wherein the fraction accounted for by the disalts and the reaction products thereof with an isocyanate component is below 0.08 wt % based on the polyurethane foam.
展开▼