Title:
SURFACE TREATMENT AGENT FOR SOFT CONTACT LENS
Document Type and Number:
WIPO Patent Application WO/2021/070862
Kind Code:
A1
Abstract:
The present invention is a surface treatment agent for a soft contact lens, the surface treatment agent containing a reaction product obtained by reacting a poly(meth)acrylic acid and a copolymer (P), which are both disclosed below. Poly(meth)acrylic acid: A poly(meth)acrylic acid having an average molecular weight of 1,000-2,000,000. Copolymer (P): A copolymer obtained by polymerizing a specific hydrophilic monomer (nA) and a specific reactive monomer (nB). In the copolymer, the content of the hydrophilic monomer (nA) is 80-99 mol%, the content of the reactive monomer (nB) is 1-20 mol%, and the weight average molecular weight is 10,000-5,000,000. According to the present invention, it is possible to provide a surface treatment agent, for a soft contact lens, capable of dramatically improving the surface hydrophilicity of the soft contact lens and ameliorating discomfort.
Inventors:
TAKAHASHI MASATOMO (JP)
SAKURAI SHUNSUKE (JP)
KAWASAKI HIROKO (JP)
FUJITA TAKANORI (JP)
SAKURAI SHUNSUKE (JP)
KAWASAKI HIROKO (JP)
FUJITA TAKANORI (JP)
Application Number:
PCT/JP2020/037995
Publication Date:
April 15, 2021
Filing Date:
October 07, 2020
Export Citation:
Assignee:
NOF CORP (JP)
International Classes:
C08F220/36; G02C7/04; C08G81/02
Domestic Patent References:
| WO2019111838A1 | 2019-06-13 |
Foreign References:
| JP2013533518A | 2013-08-22 | |||
| JP2017146334A | 2017-08-24 | |||
| JPH07502053A | 1995-03-02 | |||
| CN109796616A | 2019-05-24 | |||
| US20190263971A1 | 2019-08-29 |
Other References:
WALLINE J. J.: "Long-term Contact Lens Wear of Children and Teens", EYE & CONTACT LENS, vol. 39, 2013, pages 283 - 289
"Japanese Pharmacopoeia"
"Japanese Pharmacopoeia"
Attorney, Agent or Firm:
TAGUCHI, Masahiro et al. (JP)
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