SILICONE HYDROGEL CONTACT LENSES Russian patent published in 2022 - IPC B29D11/00 G02B1/04 G02C7/04 C08L83/10 C08G77/20 C08G77/388 

Abstract RU 2769703 C2

FIELD: medical equipment.

SUBSTANCE: invention relates to naturally wettable silicone hydrogel contact lenses. Disclosed is a silicone-hydrogel contact lens comprising a silicone-hydrogel matrix material, which contains a polysiloxane-vinyl cross-linking agent containing fragments, which are H-donors, a siloxane-containing vinyl monomer with fragments, which are H-donors, or without them, and N-vinylamide monomer. Also disclosed is a method of producing such lenses.

EFFECT: naturally wettable silicone hydrogel contact lenses are characterized by a combination of the desired contact lens properties, including relatively high oxygen permeability, relatively high water content, relatively low modulus and relatively low percentage of atomic Si on the surface.

40 cl, 1 dwg, 8 tbl, 76 ex

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RU 2 769 703 C2

Authors

Zhang, Steve Yun

Wu, Daqing

Ge, Junhao

Breitkopf, Richard Charles

Qian, Xinming

Munoz, Zach

Nelson, Matthew D.

Kumi, Augustine Twum

Lang, Weihong

Zheng, Ying

Jing, Feng

Chang, Frank

Dates

2022-04-05Published

2018-06-06Filed