Oxygen permeable contact lens material comprising copolymers of

Details Oxygen permeable contact lens material comprising copolymers of Oxygen permeable contact lens material comprising copolymers of

1981-09-08

1983-11-08

Marquis, Melvyn I.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526 79, 526264, 526265, 526273, 526279, C08F23008

Patent

active

044143753

ABSTRACT:
An oxygen permeable contact lens fabricated from a copolymer of a multifunctional siloxanyl alkylester a monomer selected from the group consisting of, an ester of acrylic or methacrylic acid and from an ester of itaconic acid or mixture thereof. The copolymer can be made either hard, soft, or elasticmeric with improved oxygen permeability.

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patent: 4235985 (1980-11-01), Tanaka et al.
patent: 4246389 (1981-01-01), LeBoeuf
patent: 4254248 (1981-03-01), Friends et al.
patent: 4260725 (1981-04-01), Keogh et al.
patent: 4276402 (1981-06-01), Chromecek et al.
patent: 4277595 (1981-07-01), Deichert et al.
patent: 4306042 (1981-12-01), Neefe
patent: 4327203 (1982-04-01), Deichert et al.

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