Method for grafting preformed hydrophillic polymers onto hydrophobic polymer substrates
US5429839A · kind A · utility
28Cited by
6References
3Claims
0Family size
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Key dates
| Filing date | Jul 19, 1993 |
| Grant date | Jul 4, 1995 |
| Priority date | — |
| Expiry date | Jul 19, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31938
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Coatings of hydrophilic organic polymers such as polyvinyl alcohol are grafted to substrates formed from hydrophobic organic polymers and polyorganosiloxanes by exposing the surface of the substrate to an aqueous solution of the hydrophilic poller in the presence of a solubilized compound of tetravalent cerium that preferably contains hydroxyl or amino groups as ligands.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.