Process for forming a coating having a metallic finish
US4139672A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 14, 1976 |
| Grant date | Feb 13, 1979 |
| Priority date | — |
| Expiry date | Dec 14, 1996 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31928
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A process for forming a coating having a metallic finish, which comprises (I) coating an undercoat paint (A) by electrodeposition on an article to be coated, (II) coating a water-thinnable intermediate coat paint (B) containing metallic scales on the coated surface of the undercoat before the undercoat is baked, (III) baking the undercoat and the intermediate coat, (IV) coating a powdery top coat paint (C) on the baked surface of the intermediate coat, and then (V) baking the top coat, said intermediate coat paint (B) containing a solid resin component at least 60% by weight of the entire resin solids which consists of a (meth)acrylate ester copolymer containing at least 0.1 equivalent, per 1,000 g of the solids content of the copolymer, of carboxyl or carboxyl ion groups and having a number average molecular weight of at least 3,000, and said top coat paint (C) containing a (meth)acrylate ester copolymer containing a glycidyl or .beta.-methlglycidyl group and a polycarboxylic acid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.