Thermosetting powder coating composition
US7247677B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 4, 2002 |
| Grant date | Jul 24, 2007 |
| Priority date | — |
| Expiry date | Jul 9, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/205
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
There is provided a thermosetting powder coating composition comprising (A1) a fluorine-containing copolymer and (B) a curing agent, in which the copolymer contains, as essential structural units, a fluoroolefin unit, an alkene unit and cyclohexyl vinyl ether unit and/or p-tertiary butyl vinyl benzoate unit, has a sum of cyclohexyl vinyl ether unit and p-tertiary butyl vinyl benzoate unit of from 5 to 45% by mole, has a thermal transition temperature of from 45° to 120° C. and has a crosslinkable reaction group. The thermosetting powder coating composition is excellent in storage stability and provides a coating film possessing a smooth surface and enhanced impact resistance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.