Curable composition for coating, and articles coated with it
US6265470A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 8, 1999 |
| Grant date | Jul 24, 2001 |
| Priority date | — |
| Expiry date | Apr 8, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G59/42
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The curable composition for coating of the invention comprises (A) 100 parts by weight of a resin having at least 2 epoxy groups in one molecule and having an epoxy equivalent of from 200 to 2,000 g/mol, and (B) from 0.001 to 100 parts by weight of a compound having at least 2 carboxyl groups in one molecule, in a molar ratio of the epoxy group to the carboxyl group (epoxy group/carboxyl group) of from 0.2/1 to 5.0/1, and contains (C) at least one organic solvent selected from glycol monoalkyl ethers, vinyl ethers and cyclic ethers, and at least one selected from monoalkyl alcohol compounds and compounds capable of giving alcohols through hydrolysis, each in an amount of from 1.0 to 50 parts by weight relative to 100 parts by weight of the total solid resin content of the composition. The composition has good storage stability and good thermal curability, and the coating films from it have good acid resistance, scratch resistance and weather resistance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.