Clear coating for top coating of automobiles, method of forming multilayer coating and automotive body
US6562903B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jun 1, 2001 |
| Grant date | May 13, 2003 |
| Priority date | — |
| Expiry date | Jun 1, 2021 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L43/04
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A clear coating for top coating of automobileswhich comprises a half-esterified acid group-containing acrylic copolymer (I) and a silicate-grafted acrylic copolymer (II) as resin constituents,said half-esterified acid group-containing acrylic copolymer (I) being obtainable by:preparing a copolymer from an acid anhydride group-containing, radical-polymerizable monomer (I-a) and another radical-polymerizable monomer (I-b) and then half-esterifying said acid anhydride group with a low-molecular alcohol compound,said silicate-grafted copolymer (II) being obtainable by grafting a silicate compound (II-B) onto a hydrolyzable silyl-containing copolymer (II-A),the amount of said silicate compound (II-B) grafted being 5 to 50% by mass (on solids basis) relative to the total amount of said resin constituents.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.