COPOLYMER AND OPHTHALMOLOGICAL COMPOSITION

摘要

The invention relates to a copolymer, which has 20 to 95 % by weight of structural units derived from at least one hydrophilic monomer based on the total weight of the copolymers and 5 to 80 % by weight of structural units derived from at least one monomer of general formula (I), where R1, R2 and R3 independently = H or alkyl, Y = O or NR4 with R4 selected from H or alkyl, X = O, S, SO or SO2, S = a structural unit selected from CHR5 or (CHR5CHR5O)iCH2, where all R5 groups independently = H or alkyl, n and i independently = a whole number from 1 to 10 and m = a whole number from 2 to 6 and the copolymer has a water content of 1 to 59 % by weight based on the total weight of the copolymer. The invention further relates to an ophthalmological composition.