Chlorine-free, zero VOC, waterborne adhesion promoter for polyolefinic substrates
US5709946A · kind A · utility
12Cited by
10References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 1, 1995 |
| Grant date | Jan 20, 1998 |
| Priority date | — |
| Expiry date | Feb 1, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31913
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A zero VOC aqueous coating composition comprising a halogen-free propylene/.alpha.-olefin copolymer having an .alpha.,.beta.-unsaturated dicarboxylic acid or anhydride grafted thereon, a base, and a water-dispersible resin containing at least two epoxy groups is applied to a plastic substrate comprising a propylene polymer. The dried coating promotes adhesion of a subsequent coating to the polypropylene-based surface of the article.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.