Color-clear composite coatings having improved hardness, acid etch resistance, and mar and abrasion resistance
US5565243A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 1, 1995 |
| Grant date | Oct 15, 1996 |
| Priority date | — |
| Expiry date | May 1, 2015 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05D7/53
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A process for applying a color-plus-clear composite coating to a substrate is provided. The process comprises applying to the substrate a pigmented or colored film-forming composition to form a base coat and applying to the base coat a transparent film-forming composition to form a clear coat over the base coat. The base coat comprises a resinous binder; a tricarbamoyl triazine compound having the formula C.sub.3 N.sub.3 (NHCOXR).sub.3, wherein X is nitrogen, oxygen, sulfur, phosphorus, or carbon, and R is a lower alkyl group having 1 to 12 carbon atoms, of mixtures of lower alkyl groups; and a pigment to act as the colorant. In a second embodiment of the invention, the base coat comprises a resinous binder, a capped polyisocyanate, and a pigment; and the clear coat comprises a polyepoxide and a polyacid crosslinking agent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.