Crosslinked polyvinyl alcohol-based polymer membrane and a process of its preparation
US7449112B2 · kind B2 · utility
12Cited by
10References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 29, 2005 |
| Grant date | Nov 11, 2008 |
| Priority date | — |
| Expiry date | May 11, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/249961
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A novel polyvinyl alcohol-based polymer membrane is disclosed. The novel polyvinyl alcohol-based polymer membrane of the present invention comprises two different compounds which are crosslinked by irradiating light such as UV or electronic beams or heat treatment to form a covalent bond between double bonds thereby providing improved properties such as chemical resistance and durability. This invention also relates to a process its preparation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.