Film having water, grease, gas and water vapor barrier properties
US9255193B2 · kind B2 · utility
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2References
10Claims
0Family size
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Key dates
| Filing date | Dec 30, 2013 |
| Grant date | Feb 9, 2016 |
| Priority date | — |
| Expiry date | Dec 30, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/3188
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Film having liquid-water, grease, gas and water-vapor barrier properties, comprising a PVA film grafted on the surface with a fatty acid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.