	US 11,746,308 B2
	Soft contact lens treatment solution
Shunsuke Sakurai, Kawasaki (JP); Masatomo Takahashi, Oita (JP); Norio Iwakiri, Oita (JP); Koji Miyamoto, Kawasaki (JP); and Takanori Fujita, Oita (JP)
Assigned to NOF CORPORATION, Tokyo (JP)
Appl. No. 16/767,370
Filed by NOF CORPORATION, Tokyo (JP)
PCT Filed Dec. 3, 2018, PCT No. PCT/JP2018/044333 § 371(c)(1), (2) Date May 27, 2020, PCT Pub. No. WO2019/111838, PCT Pub. Date Jun. 13, 2019.
Claims priority of application No. 2017-232917 (JP), filed on Dec. 4, 2017.
Prior Publication US 2020/0385653 A1, Dec. 10, 2020
Int. Cl. C11D 3/00 (2006.01); C08F 230/02 (2006.01); C08L 43/02 (2006.01); G02C 7/04 (2006.01)

CPC C11D 3/0078 (2013.01) [C08F 230/02 (2013.01); C08L 43/02 (2013.01); G02C 7/04 (2013.01)]

4 Claims

1. A soft contact lens treatment method, comprising subjecting a soft contact lens to surface treatment with a treating solution containing a copolymer (P) consisting of a combination of 50 mol % to 99 mol % of a hydrophilic monomer represented by the formula (1a) and 1 mol % to 50 mol % of 2-aminoethyl methacrylate hydrochloride, and that has a weight-average molecular weight of from 10,000 to 5,000,000:

in the formula (1a), R¹represents a hydrogen atom or a methyl group.