Multiple electrocoating process
US4968399A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 4, 1988 |
| Grant date | Nov 6, 1990 |
| Priority date | — |
| Expiry date | Jan 4, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31678
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Disclosed is a multiple electrocoating process comprising coating once or more on a substrate a first electrocoating composition, coating a second electrocoating composition on the uncured first electrocoating composition and then curing all electrodeposited coatings, characterized in that the first electrocoating composition is an aqueous dispersion containing micro gel particles having an electric charge which is specifically prepared; and the second electrocoating composition comprises an anionic or cationic film-forming aqueous resin (C) and a thermosetting crosslinking agent (D) which is self-crosslinked or crosslinked with said aqueous resin (C).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.