公开(公告)号：US4956439A

公开(公告)日：1990-09-11

申请号：US404501

申请日：1989-09-08

申请人： Shen-Nan Tong ,  Shih-Jung Tsai ,  Jyi-Shang Lii

发明人： Shen-Nan Tong ,  Shih-Jung Tsai ,  Jyi-Shang Lii

IPC分类号： C08G18/32 ,  C08G18/38 ,  C08G18/66

CPC分类号： C08G18/3872 ,  C08G18/3215 ,  C08G18/3221 ,  C08G18/6607 ,  C08G2120/00

摘要： Modified polyurethane products, exhibiting good physical strength and excellent heat resistance, and especially improved heat sag properties, are prepared by blending a polyol component containing at least 1% of at least one polynuclear aromatic polyol or a derivative thereof, or a mononuclear diol or a derivative thereof, at a temperature of 100.degree.-180.degree. C., to form a first liquid component; admixing the first liquid component with a second liquid component containing a diisocyanate or polyisocyanate, one of the two liquid components containing a catalyst; and reacting and molding the admixture in a mold kept at a temperature of from 80.degree.-140.degree. C. by reaction injection molding.

摘要翻译： 通过将含有至少1％的至少一种多核芳香族多元醇或其衍生物或单核二醇或多元醇二醇的多元醇成分，或 衍生物，在100-180℃的温度下形成第一液体组分; 将第一液体组分与含有二异氰酸酯或多异氰酸酯的第二液体组分混合，两种液体组分中的一种含有催化剂; 并通过反应注射成型将混合物在温度为80-140℃的模具中反应和模塑。