C - Chemistry – Metallurgy – 09 – D
Patent
C - Chemistry, Metallurgy
09
D
C09D 133/00 (2006.01) B05D 1/36 (2006.01) C09D 133/02 (2006.01) C09D 133/06 (2006.01) C09D 157/10 (2006.01) C09D 157/12 (2006.01) C08L 33/06 (2006.01)
Patent
CA 2125597
-1- Abstract The present invention is directed to 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 portion of the 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 µm and an acid value ranging from 5 to 80. The invention is further directed to an aqueous metallic-base coating composition which is able to form a coating film having an improved appearance at a high workability almost free from "sagging and unevenness".
Imamura Tsuyoshi
Ishii Keizou
Shibata Yasuhiro
Sho Katsuhiko
Takeuchi Kunihiko
Kirby Eades Gale Baker
Nippon Paint Co. Ltd.
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