SILICONE ACRYLAMIDE COPOLYMER Russian patent published in 2019 - IPC C08F222/38 C08F230/08 C08F30/08 G02B1/04 G02C7/04 

Abstract RU 2682256 C2

FIELD: medicine.

SUBSTANCE: invention relates to silicone acrylamide copolymers applicable in medical devices. Copolymer for use in ophthalmic lenses, formed from a reactive mixture containing radically polymerisable components and comprising (A) a multifunctional (meth)acrylamide monomer having at least one siloxane bond and at least two (meth)acrylamide groups within the molecule, (B) monofunctional linear silicone (meth)acrylamide monomer and (C) non-silicone hydrophilic monomer as a copolymerisation component. Ophthalmic lens material, an ophthalmic lens, and contact lenses made from the disclosed copolymer are also disclosed.

EFFECT: disclosed copolymer has a high acrylamide monomer content, is transparent and has a low modulus of elasticity at the same time.

26 cl, 2 tbl, 22 ex

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RU 2 682 256 C2

Authors

Tamiya, Ryuta

Fujisawa, Kazuhiko

Nakamura, Masataka

Maggio, Thomas L.

Turnage, Michelle Carman

Clark, Michael R.

Dates

2019-03-18Published

2015-03-30Filed