Surface treatment method
US5041304A · kind A · utility
84Cited by
0References
6Claims
0Family size
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Key dates
| Filing date | Dec 10, 1990 |
| Grant date | Aug 20, 1991 |
| Priority date | — |
| Expiry date | Dec 10, 2010 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C2059/145
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Plates, sheets, fibers and other articles can be rendered water repellent by subjecting the articles at their surface to a glow discharge plasma under atmospheric pressure. The treating gas is a mixture of an inert gas and a fluorinated compound in the form of a cyclic or unsaturated hydrocarbon having some or all of the hydrogen atoms thereof replaced by halogen groups including fluorine atoms. The surface treatment lowers the surface energy of the articles in a long lasting manner.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.