Aqueous coating composition
US5700862A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 26, 1995 |
| Grant date | Dec 23, 1997 |
| Priority date | — |
| Expiry date | May 26, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D133/066
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.