Process for surface modification of polymer articles
US5091213A · kind A · utility
16Cited by
23References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 31, 1989 |
| Grant date | Feb 25, 1992 |
| Priority date | — |
| Expiry date | Aug 31, 2009 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05D7/02
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A process for modifying the surface region of a polymer article by incorporating one or more ingredients therein. Such ingredients may be ultraviolet light stabilizers, antioxidants, anti-static agents, pigments and the like. The polymer article, e.g. a sheet of polyvinyl chloride, is immersed in a liquid (e.g. water) and the immersed article is contacted with a solution of the ingredient in a solvent. The liquid must be one which is non-aggressive towards the article and must also be immiscible with the solvent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.