公开(公告)号：US5652291A

公开(公告)日：1997-07-29

申请号：US502082

申请日：1995-07-14

申请人： Shinichi Oshita ,  Kunihiro Iwaizumi ,  Iwao Sugiyama

发明人： Shinichi Oshita ,  Kunihiro Iwaizumi ,  Iwao Sugiyama

IPC分类号： C08F283/00 ,  C08G18/10 ,  C08G18/67 ,  C08L75/04 ,  C08J3/05 ,  C09D175/04

CPC分类号： C08G18/672 ,  C08F283/006 ,  C08G18/10

摘要： An aqueous dispersion containing urethane vinyl composite resin which exhibits superior dispersability properties. The composite resin is obtained by graft polymerizing vinyl monomers with dispersable polyurethane. The polyurethane exhibits an acid value of at least 20. The dispersable polyurethane is obtained by reacting a urethane prepolymer having isocyanate groups at its end with a polyol compound obtained by the semi-esterification of polycarboxylic acid with benzene rings or its anhydride with trimethylol ethane or trimethylol propane. The urethane prepolymer is produced by reacting polyol compounds with poly-isocyanate compounds and ranges in molecular weight of from about 800 to 3000.

摘要翻译： 含有聚氨酯乙烯基复合树脂的水性分散体，其表现出优异的分散性。 复合树脂通过将乙烯基单体与可分散的聚氨酯接枝聚合而获得。 所述聚氨酯的酸值至少为20.所述可分散聚氨酯通过其端部具有异氰酸酯基的氨基甲酸酯预聚物与通过多元羧酸与苯环或其酸酐与三羟甲基乙烷的半酯化得到的多元醇化合物反应而获得，或 三羟甲基丙烷。 氨基甲酸酯预聚物是通过使多元醇化合物与聚异氰酸酯化合物反应而得到的，分子量为约800至3000。