Method for grafting preformed hydrophilic polymers onto hydrophobic polymer substrates
US5527618A · kind A · utility
6Cited by
2References
3Claims
0Family size
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Key dates
| Filing date | Apr 4, 1995 |
| Grant date | Jun 18, 1996 |
| Priority date | — |
| Expiry date | Apr 4, 2015 |
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 polymer 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.