Method for modifying surface properties of a shaped article of an acrylic resin
US4317788A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 2, 1981 |
| Grant date | Mar 2, 1982 |
| Priority date | — |
| Expiry date | Feb 2, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2333/06
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A novel method is proposed for improving the surface properties or, in particular, for increasing the affinity to water of and for reducing accumulation of static electricity on the surface of a shaped article made of an acrylic resin. The inventive method comprises first exposing the surface of the shaped article to low temperature plasma of a gas having no polymerizability in plasma and then bringing the plasma-treated surface into contact with an aqueous solution containing a surface active agent. The effect of the inventive method is so strong and durable that the treated surface remains antistatic even 6 months after the treatment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.