Heat-curable coating composition comprising plurality of binder resins
US5741602A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 23, 1995 |
| Grant date | Apr 21, 1998 |
| Priority date | — |
| Expiry date | Aug 23, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31794
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A heat-curable, epoxy-free coating composition comprises a dry blend of at least two different binder resins, each binder resin comprising of (a) a carboxyl-terminated polyester resin having an acid value from 20 to 200 mg KOH/g and a glass transition temperature of at least 40.degree. C., and (b) a .beta.-hydroxylalkylamide with at least two .beta.-hydroxylalkylamide groups per molecule; the at least two different binder resins differing in functionality, or in other words in the number of carboxyl and/or .beta.-hydroxylalkylamide groups per binder resin molecule. Along with the binder resins, the coating composition optionally includes further additives that are typical for the processing and use of powder coatings.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.