Process for surface modification of polymer articles
US4990369A · kind A · utility
14Cited by
24References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 22, 1989 |
| Grant date | Feb 5, 1991 |
| Priority date | — |
| Expiry date | Sep 22, 2009 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05D7/02
- 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 running the process at a temperature lower than ambient or room temperature whereat substantially no solid material is formed on the surface of the water layer during the process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.