Flexible primer composition and method of providing a substrate with a flexible multilayer coating
US4680346A · kind A · utility
12Cited by
24References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 13, 1985 |
| Grant date | Jul 14, 1987 |
| Priority date | — |
| Expiry date | Dec 13, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S525/939
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A coating composition contains an organic polyol, a polyepoxide, a blocked polyisocyanate crosslinking agent, and a phenolic resin. The coating composition also can be formulated as a two package coating composition with a free polyisocyanate crosslinking agent. The composition is flexible, having an elongation of at least 10 percent when cured. This coating composition is particularly suitable as a primer in preparing substrates with a multilayer coating having good flexibility.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.