Powder coating composition
US5576389A · kind A · utility
6Cited by
8References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 14, 1995 |
| Grant date | Nov 19, 1996 |
| Priority date | — |
| Expiry date | Aug 14, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S525/934
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A powder coating comprising a thermosetting resinous composition comprising a base resin having 2 or more oxirane groups in its molecule and a hardener for epoxy resin, which is characterized by further containing 0.5 to 10% by weight based on the base resin weight of a vinyl resin containing 1 to 10% by weight of at least one aliphatic dicarboxylic acid selected from thiomalic acid, maleic acid, fumaric acid and itaconic acid and having a number average molecular weight of 1000 to 8000 and a glass transition temperature of -40.degree. to 100.degree. C. The coating obtained is excellent in smoothness, gloss and image clarity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.