Method for surface modification of 3-dimensional bulk polymers
US6403167B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 1, 2000 |
| Grant date | Jun 11, 2002 |
| Priority date | — |
| Expiry date | Dec 14, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29K2995/0005
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A method for surface modification of 3-dimensional bulk polymers is provided to improve surface properties and surface conductivity of 3-dimensional bulk polymers by using plasma source ion implantation technique. The plasma source ion implantation technique is to modify the surface by implanting ions into the surface of the 3-dimensional samples uniformly. When negative high voltage pulse is applied to a metallic grid around the bulk polymer samples, ions are extracted from the plasma; most of ions passing the grid and collide with the surface of the bulk polymer samples in high energy. Therefore, through the method for applying high voltage pulse to the grid around samples, ions are implanted into the surface of the 3-dimensional bulk polymer samples uniformly, and thereby the ions implanted in high energy modify the bulk polymer surface to improve the electrical conductivity effectively.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.