Metal pigments stabilized against gassing with fatty acid or a maleinized alpha-olefin modified gassing inhibitor
US5755869A · kind A · utility
3Cited by
9References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 15, 1997 |
| Grant date | May 26, 1998 |
| Priority date | — |
| Expiry date | May 15, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01P2004/20
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
In accordance with the present invention, metal pigments are provided which are normally reactive with water or moisture to release hydrogen gas ("gassing") and which have been stabilized against such gassing by having their surfaces treated with an adduct of a maleinized fatty acid and/or a maleinized alpha-olefin and a polyol. Waterborne film-forming compositions which comprise an aqueous diluent medium, a film-forming polymer, and metal pigment stabilized against gassing by treatment with an adduct of a maleinized fatty acid or a maleinized alpha-olefin and a polyol are also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.