Polyparaffinsiloxane shaped article for use in biomedical applications
US4208506A · kind A · utility
52Cited by
16References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 22, 1979 |
| Grant date | Jun 17, 1980 |
| Priority date | — |
| Expiry date | Feb 22, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S128/21
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Monomeric polyparaffinsiloxanes end-capped with activated unsaturated groups and polymers and copolymers thereof are disclosed herein for use as contact lenses and biomedical devices with improved properties, such as, oxygen transportability, hydrolytic stability, biological inertness, transparency and improved strength without the use of fillers. The polymer composition comprises a poly(organoparaffinsiloxane) monomer .alpha.,.omega. terminally bonded through divalent hydrocarbon groups to polymerized free radical polymerizably activated unsaturated groups.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.