Process for treating the outer-inner surfaces of a porous non-conductor
US5792517A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 24, 1997 |
| Grant date | Aug 11, 1998 |
| Priority date | — |
| Expiry date | Apr 24, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/249958
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A process for treating outer-inner surfaces of a porous non-conductor, comprising steps of: PA1 placing said porous non-conductor between a pair of electrodes which are located opposite to each other and carry a dielectric layer on a surface facing the other electrode, respectively, so that said porous non-conductor is brought into contact with both dielectric layers without coming into contact with said electrodes; and then, PA1 applying an alternating current voltage having a frequency of about 0.1 KHz to about 100 KHz between said electrodes to thereby induce an electric discharge in voids contained in said porous non-conductor and sandwiched between a pair of said electrodes is disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.