Title:
OPHTHALMIC MEDICAL INSTRUMENT INCLUDING PHOTOCHROMIC POLYMER AND PRODUCTION METHOD FOR OPHTHALMIC MEDICAL INSTRUMENT
Document Type and Number:
WIPO Patent Application WO/2020/261502
Kind Code:
A1
Abstract:
Provided is an ophthalmic medical instrument including a photochromic polymer that is obtained from a photochromic monomer and that exhibits high transparency in a non-active state. The ophthalmic medical instrument according to one embodiment of the present invention includes a photochromic polymer obtained by polymerizing monomer components including a photochromic monomer and a lactam ring-containing monomer, wherein the content proportion of said lactam ring-containing monomer in said monomer components is 10-50 wt%. This ophthalmic medical instrument is provided typically in the form of a contact lens or an intraocular lens.
Inventors:
TOMIDA TOMOMI (JP)
NAKADA KAZUHIKO (JP)
BABA MASAKI (JP)
NIIDA SATOMU (JP)
MOMODA JUNJI (JP)
MIYAZAKI MASAYUKI (JP)
TAKENAKA JUNJI (JP)
NAKADA KAZUHIKO (JP)
BABA MASAKI (JP)
NIIDA SATOMU (JP)
MOMODA JUNJI (JP)
MIYAZAKI MASAYUKI (JP)
TAKENAKA JUNJI (JP)
Application Number:
PCT/JP2019/025687
Publication Date:
December 30, 2020
Filing Date:
June 27, 2019
Export Citation:
Assignee:
MENICON CO LTD (JP)
TOKUYAMA CORP (JP)
TOKUYAMA CORP (JP)
International Classes:
G02C7/04; A61F2/16; G02B1/04; G02B5/23
Domestic Patent References:
| WO2004068215A1 | 2004-08-12 | |||
| WO2012057096A1 | 2012-05-03 | |||
| WO2001060881A2 | 2001-08-23 | |||
| WO2005028465A1 | 2005-03-31 | |||
| WO2000070388A1 | 2000-11-23 | |||
| WO2018021455A1 | 2018-02-01 |
Foreign References:
| JP2007524857A | 2007-08-30 | |||
| JP2017049615A | 2017-03-09 | |||
| JPH08501504A | 1996-02-20 | |||
| EP0277639A2 | 1988-08-10 | |||
| JP2011219513A | 2011-11-04 | |||
| JP2015503631A | 2015-02-02 | |||
| JP2006291006A | 2006-10-26 | |||
| JP2005181730A | 2005-07-07 |
Other References:
See also references of EP 3992695A4
Attorney, Agent or Firm:
MOMII Takafumi (JP)
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