Polysiloxane composition and biomedical devices
US4341889A · kind A · utility
171Cited by
9References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 26, 1981 |
| Grant date | Jul 27, 1982 |
| Priority date | — |
| Expiry date | Feb 26, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F283/124
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Monomeric polysiloxanes endcapped with activated unsaturated groups are copolymerized with a modulus modifier and tear film stabilizers to form hard, gas permeable, polysiloxane contact lenses and other biomedical devices.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.