Title:
MATERIAL FOR SOFT CONTACT LENS HAVING CONTRAST IMPROVEMENT FUNCTION
Document Type and Number:
WIPO Patent Application WO/2023/068316
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing a polymer which is suitable for use as a material for a soft contact lens that can improve anti-glare properties and contrast. This polymer is obtained by copolymerizing an organic colorant having the ability to absorb light in the yellow region and one or more polymerizable monomers. The polymerizable monomers include one or more types selected from among acrylamide-based monomers and vinyl-based monomers. The polymerizable monomers also include a silicon-containing monomer.
Inventors:
OSHITA TAKAHIDE (JP)
SUZUKI HIRONORI (JP)
SUZUKI HIRONORI (JP)
Application Number:
PCT/JP2022/039021
Publication Date:
April 27, 2023
Filing Date:
October 20, 2022
Export Citation:
Assignee:
KOWA CO (JP)
International Classes:
C08F2/44; C08F20/56; C08F26/00; C08F30/08; G02B1/04; G02B5/22; G02C7/04; G02C7/10
Domestic Patent References:
| WO2019111969A1 | 2019-06-13 |
Foreign References:
| JP2013533518A | 2013-08-22 | |||
| JP2014523542A | 2014-09-11 | |||
| JP6307209B1 | 2018-04-04 | |||
| JPH095682A | 1997-01-10 | |||
| JP6290170B2 | 2018-03-07 | |||
| JP2017165941A | 2017-09-21 | |||
| JP2022071514A | 2022-05-16 |
Attorney, Agent or Firm:
IP FIRM SHUWA (JP)
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