Hydrophilic modifier monomers
US5162530A · kind A · utility
1Cited by
3References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 10, 1991 |
| Grant date | Nov 10, 1992 |
| Priority date | — |
| Expiry date | Jun 10, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B1/043
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Hydrophilic modifier monomers of the formula [X-T].sub.z' H' are disclosed wherein X is a reactive group, H' is a hydrophilic group and T is a divalent linking group, z' being a number up to the available valence of H', excess H' valences being taken up by hydrogen. The monomers of the invention can be used to boost the hydrophilic nature of a wide variety of polymeric materials or be polymerized themselves with varying degrees of copolymerizable monomers. They are particularly suited for making hydrophilic contact lens materials.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.