公开(公告)号：US5700862A

公开(公告)日：1997-12-23

申请号：US451491

申请日：1995-05-26

申请人： Katsuhiko Sho ,  Yasuhiro Shibata ,  Keizou Ishii ,  Tsuyoshi Imamura ,  Kunihiko Takeuchi

发明人： Katsuhiko Sho ,  Yasuhiro Shibata ,  Keizou Ishii ,  Tsuyoshi Imamura ,  Kunihiko Takeuchi

IPC分类号： C09D133/06 ,  C08K3/08

CPC分类号： C09D133/066

摘要： An aqueous coating composition comprising: (A) 10 to 95% by weight (based on solid content) of a film forming polymer which is prepared by neutralizing at least a part of acid groups contained in a copolymer having a number average molecular weight ranging from 6,000 to 50,000 prepared by copolymerizing (A1) 5 to 40% by weight of an amide group-containing ethylenically unsaturated monomer, (A2) 3 to 15% by weight of an acid group-containing ethylenically unsaturated monomer, (A3) 10 to 40% by weight of a hydroxyl group-containing ethylenically unsaturated monomer, and (A4) a remainder amount of ethylenically unsaturated monomers other than the monomers (A1) to (A3); and (B) 5 to 90% by weight (based on solid content) of an aqueous dispersion of carboxyl group-containing acrylic resin particles having a particle size ranging from 0.01 to 1.0 .mu.m and an acid value ranging from 20 to 80. An aqueous metallic-base coating composition which enables to form a coating film of an improved appearance at a high workability almost free from "sagging" and "unevenness" is provided.

摘要翻译： 一种水性涂料组合物，其包含：（A）10至95重量％（基于固体含量）的成膜聚合物，其通过中和包含在数均分子量范围内的共聚物中的至少一部分酸基而制备 通过共聚合（A1）5〜40重量％的含酰胺基的烯属不饱和单体（A2）3〜15重量％的含酸基的烯属不饱和单体，（A3）10〜40 （A4）除单体（A1）〜（A3）以外的剩余量的烯键式不饱和单体;（A4）除了单体 和（B）5至90重量％（基于固体含量）的含有羧基的丙烯酸树脂颗粒的水分散体，其粒径范围为0.01至1.0μm，酸值为20至80。 提供了能够以几乎没有“下垂”和“不均匀”的高加工性形成改进外观的涂膜的水性金属基涂料组合物。

公开(公告)号：US5643977A

公开(公告)日：1997-07-01

申请号：US512488

申请日：1995-08-08

申请人： Katsuhiko Sho ,  Masahiro Nishio ,  Koichi Saitoh ,  Kei Aoki ,  Tohru Yagi

发明人： Katsuhiko Sho ,  Masahiro Nishio ,  Koichi Saitoh ,  Kei Aoki ,  Tohru Yagi

IPC分类号： C09D4/06 ,  C08K3/20

CPC分类号： C09D4/06

摘要： A water-based coating composition which cures through a Michael reaction at room temperature is provided. The composition comprises (a) an aqueous emulsion of an acrylic copolymer having a plurality of activated methylene groups in the molecule, (b) an aqueous dispersion or solution of a compound having a plurality of ethylenic unsaturations in the molecule, and (c) a compound capable of catalyzing the Michael reaction.

摘要翻译： 提供通过迈克尔反应在室温下固化的水性涂料组合物。 该组合物包含（a）在分子中具有多个活化亚甲基的丙烯酸共聚物的水性乳液，（b）分子中具有多个烯属不饱和基团的化合物的水性分散体或溶液，（c） 能够催化迈克尔反应的化合物。