Method for improving surface properties of shaped articles of synthetic resins
US4396641A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 3, 1981 |
| Grant date | Aug 2, 1983 |
| Priority date | — |
| Expiry date | Sep 3, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J7/126
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The invention provides a novel and efficient method for the improvement of the surface properties of a shaped article of a synthetic resin such as a vinyl chloride-based resin. In particular, the outstanding defective point of the plastic resin articles toward accumulation of static electricity on the surface is greatly reduced by the inventive method, in which the surface of the article is exposed to the low temperature plasma generated in a gaseous atmosphere containing an organic silicon compound followed, preferably, by contacting treatment with a halogen or a halogen compound such as hydrogen halides and halogen-containing organic compounds in a gaseous phase. The organic silicon compound in the gaseous plasma atmosphere is preferably diluted with a diluent gas which may be nitrogen, nitrogen oxides, ammonia or rare gases at a specified partial pressure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.