| US 7,482,416 B2 | ||
| Prepolymers for improved surface modification of contact lenses | ||
| Yu-Chin Lai, Pittsford, N.Y. (US); and Edmond T. Quinn, Rochester, N.Y. (US) | ||
| Assigned to Bausch & Lomb Incorporated, Rochester, N.Y. (US) | ||
| Filed on Dec. 13, 2007, as Appl. No. 11/955,683. | ||
| Application 11/955683 is a division of application No. 10/876969, filed on Jun. 25, 2004, abandoned. | ||
| Prior Publication US 2008/0097002 A1, Apr. 24, 2008 | ||
| Int. Cl. C08F 130/08 (2006.01) | ||
| U.S. Cl. 526—279 [528/32; 523/107] | 46 Claims |
| 21. A medical device comprising a copolymer prepared by polymerizing a monomer mixture comprising, as main components,
(A) 10 to 90 weight % of at least one prepolymer selected from the group consisting of compounds having the following formula:
YOC—CH═CHCOW(R1)(SiR2R3O)m(SiR2R3)(R1)WOCCH═CH—COY
CH2═C(CH2COY)COW(R1)(SiR2R3O)m(SiR2R3)(R1)WOC(CH2COY)C═CH2 and
CH2═C(CH2COY)COW(R1)(SiR2R3O)m(SiR2R3)(R1)WOC(CH2COY)C═CH2 wherein R1 is selected from the group consisting of alkylenes and alkylenes containing ether linkages, R2 and R3 are independently alkyl or phenyl groups, unsubstituted or substituted with halogen and ether linkages, W is O or NH, m is
an integer between 2 and 200, and Y is a residue derived from a reactive oligomer of hydrophilic monomers, and
(B) 10 to 90 weight % of at least one copolymerizable device-forming monomer.
|