Polysiloxane composition with improved surface wetting characteristics and biomedical devices made thereof
US4652622A · kind A · utility
34Cited by
6References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 23, 1984 |
| Grant date | Mar 24, 1987 |
| Priority date | — |
| Expiry date | Jul 23, 2004 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B1/043
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The surface wetting characteristics of polysiloxanes prepared from monomeric polysiloxanes endcapped with activated unsaturated groups and modulus modifiers are improved by the inclusion of small amounts of an N-alkenoyl trialkylsilyl aminate. The improved polymeric compositions can be used to form hard, gas permeable contact lenses and other biomedical devices.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.