Method for preparing multi-layered coated articles and the coated articles prepared by the method
US4822685A · kind A · utility
34Cited by
30References
33Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 10, 1987 |
| Grant date | Apr 18, 1989 |
| Priority date | — |
| Expiry date | Dec 10, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31554
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A method of forming a multilayered coating on a substrate involves the steps of: PA0 (I) applying to the surface of a substrate an aqueous based film forming composition comprising color pigments and an aqueous polyurethane dispersion comprising the reaction product of: PA1 (a) a substantially branched, isocyanate containing prepolymer; and PA1 (b) a polyamine having primary and/or secondary amino groups; PA0 (II) applying a clear film forming composition over the basecoat of step (I); PA0 (III) allowing the clear composition of step (II) to at least partially dry or cure to form a transparent topcoat over said basecoat.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.