Process for surface modification of polymer articles
US4919972A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 28, 1988 |
| Grant date | Apr 24, 1990 |
| Priority date | — |
| Expiry date | Jul 28, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2327/06
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A composition and process for modifying the surface region of a polymer article. The composition is a mixture of a resin surface modifier ingredient, a resin-swellable organic solvent and a surfactant additive. The composition is contacted with the surface of a resin article, while the article is immersed in a liquid which may also contain a surfactant which is non-aggressive toward the article and immiscible with the solvent. The surfactant alters the wetting characteristics of the air-liquid, or liquid-surface modifier interfaces, or both interfaces, so that a film of the modifier ingredient does not form on the surface of the liquid layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.