Powder coating compositions containing a carboxylic acid functional polyester
US6069221A · kind A · utility
55Cited by
7References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 31, 1998 |
| Grant date | May 30, 2000 |
| Priority date | — |
| Expiry date | Jul 31, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L83/04
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Disclosed are improved curable powder coating compositions comprised of a particulate, film-forming mixture of a polymer having reactive functional groups, and a curing agent therefor having functional groups reactive with the functional groups of the polymer and present in an amount sufficient to cure the coating composition, wherein the inclusion of a particular polyester which has carboxylic acid functional groups improves adhesion to metal, particularly aluminum, and filiform corrosion resistance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.