Surface modification of polymeric objects
US5525691A · kind A · utility
62Cited by
32References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 1, 1995 |
| Grant date | Jun 11, 1996 |
| Priority date | — |
| Expiry date | Jun 1, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B1/043
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A class of polymerizable surfactants are described by the formula EQU DC(A.sub.x B.sub.y) wherein A is a monomer unit derived from at least one ethylenically unsaturated hydrophilic monomer, B is a monomer unit derived from at least one ethylenically unsaturated hydrophobic monomer, C is a functional chain transfer agent, D is an ethylenically unsaturated end group, y is within the range from about 0.1 to about 0.9, and x+y=1. The polymerizable surfactants are useful for modifying the surfaces of polymeric objects, especially contact lenses.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.