Patent ID: 11912964
Assignee: NOF CORPORATION
Field: Basic materials chemistry (Chemistry)
Classification: CPC C | IPC C

Claim 0:
1. A contact lens treatment solution comprising the following copolymer A and copolymer B in a ratio of A/B=1000/1 to 2/1 by weight:
Copolymer A: a copolymer obtained by copolymerization of a monomer (a) represented by the following formula (1) and a monomer (b) represented by the following formula (2), in which the copolymerization ratio of the monomer (a) to the monomer (b), a/b=7/3 to 9/1 by mol, and having a weight-average molecular weight of 400,000 to 700,000;
Copolymer B; a copolymer obtained by copolymerization of a monomer (c) represented by the following formula (3) and a monomer (d) represented by the following formula (4), in which the copolymerization ratio of the monomer (c) to the monomer (d), c/d=1/4 to 9/1 by mol, and having a weight-average molecular weight of 20,000 to 90,000;, wherein R1 represents a hydrogen atom or a methyl group;, wherein R2 represents a hydrogen atom or a methyl group, and R3 represents an alkyl group having 2 to 6 carbon atoms;, wherein R4 represents a hydrogen atom or a methyl group, and n represents an integer of 1 to 4,, wherein R5 represents a hydrogen atom or a methyl group, and R6 represents a hydrocarbon group having 8 to 22 carbon atoms.