Surface coating of polymer objects
US5135297A · kind A · utility
238Cited by
20References
33Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 27, 1990 |
| Grant date | Aug 4, 1992 |
| Priority date | — |
| Expiry date | Nov 27, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31906
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A method of modifying surfaces of polymeric objects which comprises immersing the polymeric object in an aqueous dispersion of a polymerizable surfactant, a cross-linking agent, and a free radical initiator and exposing the immersant to ultraviolet light to form a permanent, cross-linked surface coating on the object. Also disclosed are coated objects prepared by this method, which is particularly suited for coating contact lenses.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.