Monomer, polymers, and ophthalmic lenses and contact lenses...

Details Monomer, polymers, and ophthalmic lenses and contact lenses... Monomer, polymers, and ophthalmic lenses and contact lenses...

2006-09-26

2006-09-26

Pezzuto, Helen L. (Department: 1713)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C526S279000, C526S321000, C526S333000

Reexamination Certificate

active

07112641

ABSTRACT:
A monomer as represented by general formula (a) or (a′) below, with which a polymer having high oxygen permeability and transparency and suited to an ophthalmic lens is obtained, is provided. Suitable monomers include:wherein A is a siloxanyl group; R1is H or a methyl group; R2is a substituted group that is selected from the group consisting of alkyl groups with 1 to 20 carbon atoms that may be substituted, aryl groups with 6 to 20 carbon atoms that may be substituted and formula (c) below.

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patent: 2001-48939 (2001-02-01), None

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