US 11,912,964 B2
Contact lens treatment solution
Hirotaka Suzuki, Yokohama (JP); Hiroko Kawasaki, Kawasaki (JP); and Shunsuke Sakurai, Yokosuka (JP)
Assigned to NOF CORPORATION, Shibuya-ku (JP)
Appl. No. 17/275,955
Filed by NOF CORPORATION, Shibuya-ku (JP)
PCT Filed Sep. 11, 2019, PCT No. PCT/JP2019/035676
§ 371(c)(1), (2) Date Mar. 12, 2021,
PCT Pub. No. WO2020/059593, PCT Pub. Date Mar. 26, 2020.
Claims priority of application No. 2018-173282 (JP), filed on Sep. 18, 2018.
Prior Publication US 2021/0269748 A1, Sep. 2, 2021
Int. Cl. C11D 3/37 (2006.01); C08F 120/36 (2006.01); C11D 11/00 (2006.01); C11D 3/26 (2006.01); C11D 3/30 (2006.01); C11D 3/36 (2006.01)
CPC C11D 3/3784 (2013.01) [C08F 120/36 (2013.01); C11D 3/26 (2013.01); C11D 3/30 (2013.01); C11D 3/36 (2013.01); C11D 3/3761 (2013.01); C11D 3/3769 (2013.01); C11D 3/3773 (2013.01); C11D 11/0017 (2013.01); C08F 2800/10 (2013.01)] 2 Claims
 
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;

OG Complex Work Unit Chemistry
wherein R1 represents a hydrogen atom or a methyl group;

OG Complex Work Unit Chemistry
wherein R2 represents a hydrogen atom or a methyl group, and R3 represents an alkyl group having 2 to 6 carbon atoms;

OG Complex Work Unit Chemistry
wherein R4 represents a hydrogen atom or a methyl group, and n represents an integer of 1 to 4,

OG Complex Work Unit Chemistry
wherein R5 represents a hydrogen atom or a methyl group, and R6 represents a hydrocarbon group having 8 to 22 carbon atoms.