Patent Number: 6,166,236

Title: Vinyl carbonate and vinyl carbamate contact lens material monomers

Abstract: Novel monomers of the general formula ##STR1## where b is 0 or 1, a is 1, 2, 3 or 4, R.sup.2 is a monovalent alkyl radical and R is an organic radical. The novel monomers may be employed to produce novel copolymers useful as hydrogel, soft non-hydrogel and/or rigid gas permeable contact lens materials.

Inventors: Bambury; Ronald E. (Fairport, NY), Seelye; David E. (Rochester, NY)

Assignee: Bausch & Lomb Incorporated

International Classification: C07C 271/16 (20060101); C07C 271/18 (20060101); C07C 271/28 (20060101); C07C 271/20 (20060101); C07C 271/00 (20060101); C07C 271/14 (20060101); C07D 207/27 (20060101); C07C 271/24 (20060101); C07D 207/404 (20060101); C07D 207/00 (20060101); C08F 30/00 (20060101); C07F 7/18 (20060101); C08F 18/24 (20060101); C08F 18/00 (20060101); C08F 218/00 (20060101); C07F 7/08 (20060101); C07F 7/00 (20060101); C07C 69/00 (20060101); C07C 69/96 (20060101); C08F 30/08 (20060101); G02B 1/04 (20060101); C07F 007/08 (); C07F 007/10 ()

Expiration Date: 12/26/2013