公开(公告)号：US5137961A

公开(公告)日：1992-08-11

申请号：US244397

申请日：1988-09-14

申请人： Hendricus C. Goos ,  Gerardus C. Overbeek

发明人： Hendricus C. Goos ,  Gerardus C. Overbeek

IPC分类号： C08G18/63 ,  C08F2/16 ,  C08F2/44 ,  C08F283/00 ,  C08G18/00 ,  C08G18/08 ,  C08L75/00 ,  C08L75/04 ,  C09D175/00 ,  C09D175/04 ,  C09J175/00 ,  C09J175/04

CPC分类号： C08G18/0819 ,  C08F283/006 ,  C09D175/04

摘要： A surfactant-free aqueous polymer dispersion containing an anionic water-dispersible polyurethane and a vinyl polymer in a weight ratio of from 10:90 to 90:10, said dispersion having been obtained by:(A) forming a solution of an anionic water-dispersible isocyanate-terminated polyurethane in at least one vinyl monomer;(B) dispersing the solution in an aqueous medium;(C) chain extending the polyurethane, and either(D) adding further vinyl monomer, and(E) initiating polymerization of the vinyl monomer, or(F) initiating polymerization of the vinyl monomer, or(G) adding further vinyl monomer during polymerization.

公开(公告)号：US4730021A

公开(公告)日：1988-03-08

申请号：US4230

申请日：1987-01-05

申请人： Walter M. W. Zom ,  Hendricus C. Goos ,  Johan Stijntjes

发明人： Walter M. W. Zom ,  Hendricus C. Goos ,  Johan Stijntjes

IPC分类号： C08F2/00 ,  C08F2/22 ,  C08F290/00 ,  C08F290/06 ,  C08F299/00 ,  C08F299/06 ,  C08G18/00 ,  C08G18/10 ,  C08G18/67 ,  C08G18/81 ,  C08L57/00 ,  C08F283/00

CPC分类号： C08G18/8175 ,  C08F299/065 ,  C08G18/10

摘要： Ethylenically unsaturated aqueous urethane dispersions of controlled molecular weight are prepared by first reacting an active hydrogen atom containing polymerizable vinyl compound with a diisocyanate to produce a monoacrylated diisocyanate adduct in the presence of excess diisocyanate.The adduct thus formed, being a nearly selectively made mono-ethylenically unsaturated mono-isocyanate compound, is used in preparing an aqueous urethane polymer dispersion by reacting this adduct with polyisocyanates, organic compounds containing active hydrogen atoms like polyols and polyamines and organic compounds containing at least one active hydrogen atom and at least one group capable of saltformation, followed by neutralizing, dispersing in water and chain-extending the prepolymer.This ethylenically unsaturated aqueous urethane polymer dispersion is subjected to an emulsionpolymerization by conventional techniques with acrylate, methacrylate and related polymerizable compounds, yielding an aqueous dispersion of an urethane-acrylate graft copolymer.These urethane-acrylate graft copolymers are particularly useful as binders for coatings, printing inks and related applications.

摘要翻译： 通过首先使含有可聚合乙烯基化合物的活性氢原子与二异氰酸酯反应以在过量二异氰酸酯存在下制备单丙烯酸酯化二异氰酸酯加合物来制备受控分子量的烯键式不饱和水性聚氨酯分散体。 由此形成的加合物是几乎选择性制备的单烯属不饱和单异氰酸酯化合物，用于通过使该加合物与多异氰酸酯，含有活性氢原子的有机化合物如多元醇和多胺以及含有 至少一个活性氢原子和至少一个能够进行盐形成的基团，然后中和，分散在水中并链延长预聚物。 该烯键式不饱和水性聚氨酯聚合物分散体通过常规技术与丙烯酸酯，甲基丙烯酸酯和相关的可聚合化合物进行乳液聚合，得到氨基甲酸酯 - 丙烯酸酯接枝共聚物的水分散体。 这些氨基甲酸酯 - 丙烯酸酯接枝共聚物特别可用作涂料，印刷油墨和相关应用的粘合剂。