CONTACT LENSES CONTAINING WATER-SOLUBLE POLYMERS OR COPOLYMERS OF N-(2-HYDROXYALKYL)METHACRYLAMIDE Russian patent published in 2018 - IPC C08F293/00 C08F220/58 C08L53/00 C08J7/00 G02B1/04 B82Y30/00 

FIELD: medicine.

SUBSTANCE: ophthalmic article is made of hydrogel as a cross-linked polymer matrix and contains at least one water-soluble, non-reactive hydrophilic polymer containing less than 20 mole % of anionic repeating units and repeating units derived from a compound of formula I where R¹ is hydrogen or methyl; R² is H or C_1-4 alkyl substituted by at least one hydroxyl group; R³ is C_1-4 alkyl substituted by at least one hydroxyl group. The water-soluble hydrophilic polymer has a polymerization degree of 100 to 100,000, and is free of end hydrophobic polymer units. Method for ophthalmic article wettability improvement includes ophthalmic article contacting with a solution containing at least one of the above water-soluble nonreactive hydrophilic polymer, under conditions sufficient for inclusion of an effective lubricant quantity of hydrophilic polymer into the ophthalmic article. The ophthalmic solution contains from 10 m. p. and to 10 wt % of at least one water-soluble, nonreactive hydrophilic polymer.

EFFECT: invention allows to increase the wettability of an ophthalmic article without surface treatment.

29 cl, 1 tbl, 1 ex