Silicone-containing prepolymers and low water materials
US5981669A · kind A · utility
111Cited by
4References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 29, 1998 |
| Grant date | Nov 9, 1999 |
| Priority date | — |
| Expiry date | Apr 29, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G77/442
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Low water silicone-containing elastomers are based on a hydroxy- or amino-terminated prepolymer derived from an ethylenically unsaturated silicon-containing monomer, and at least one monomer reactive with hydroxyl- or amino-functional radicals of the prepolymer. The elastomers are especially useful as contact lens materials.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.