Plasma treated tubing
US6053171A · kind A · utility
11Cited by
11References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 4, 1999 |
| Grant date | Apr 25, 2000 |
| Priority date | — |
| Expiry date | Mar 4, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2031/7542
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Polymeric tubing having an outer surface with a reduced coefficient of friction. The outer surface is treated by an exposure to a plasma glow discharge in the presence of an inert gas, and by deposition of a monomer during exposure to the plasma glow discharge for a time sufficient to modify the slip characteristics of the surface of the tube. The tube is preferably exposed to plasma glow discharge for a time sufficient to reduce the coefficient of friction by at least 70%. The tubing may be fabricated of silicone rubber, and the monomer deposited may be N-vinyl-2-pyrrolidone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.