Process for surface modification of polymer articles
US4868011A · kind A · utility
7Cited by
9References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 21, 1988 |
| Grant date | Sep 19, 1989 |
| Priority date | — |
| Expiry date | Jun 21, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J7/065
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
An improvement in the process of incorporating a modifier ingredient into the surface region of a resinous article is described herein. The basic process includes immersing the article in a liquid such as water and contacting the immersed article with a solution of a modifier ingredient in a solvent which is immiscible with the liquid. The improvement herein comprises removing a substantial amount of air dissolved in the water layer to prevent droplets of solution from rising to the surface of the water layer during the process, thereby preventing solid modifier material from accumulating on the water surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.