Process for the production of a multi-layer coating
US9573166B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 1, 2014 |
| Grant date | Feb 21, 2017 |
| Priority date | — |
| Expiry date | Feb 5, 2035 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05D2503/00
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A process for the production of a multi-layer coating includes applying a coating layer from an aqueous pigmented coating composition A onto a substrate provided with an EDC primer and applying a base coat layer from an aqueous coating composition B overlying the coating layer. A clear coat layer is applied onto the base coat layer and the three coating layers are jointly bake-cured. The coating compositions A and B are different from each other and coating composition A comprises (i) binder solids, (ii) free polyisocyanate, (iii) a pigment content free of special effect pigments and comprising carbon black pigment and/or titanium dioxide pigment, and (iv) talcum filler.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.