Black topcoating composition
US5006597A · kind A · utility
8Cited by
2References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 12, 1989 |
| Grant date | Apr 9, 1991 |
| Priority date | — |
| Expiry date | Jun 12, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D5/08
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention relates particularly to a one-package, black-pigmented, corrosion resistant coating composition, of excellent storage stability and being especially suitable for application over metal that has been coated with a composition containing chromium in non-elemental form. More specifically, the coating composition of the invention is formulated from an intimate blend of aqueous carbon black colloidal dispersion in aqueous medium, which is in further mixture with thickening agent aqueous acrylic resin dispersion and silica sol having a pH of not above about 10.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.