Polysiloxane composition with improved surface wetting characteristics and biomedical devices made thereof
US4495361A · kind A · utility
19Cited by
3References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 29, 1983 |
| Grant date | Jan 22, 1985 |
| Priority date | — |
| Expiry date | Apr 29, 2003 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2/24
- 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.