Title:
OPTICAL MATERIAL COMPOSITION AND OPTICAL MATERIAL
Document Type and Number:
WIPO Patent Application WO/2020/129933
Kind Code:
A1
Abstract:
The present invention involves: an optical material composition characterized by containing (A) 100 parts by weight of a polymerizable monomer, and (B) and 0.001 to 0.3 parts by weight of a UV absorber having a specific structure and a maximum absorption wavelength of 360 nm to less than 380 nm; and an optical material comprising the composition. The present invention makes it possible to provide an optical material composition containing a UV absorber having excellent long-term storage stability, and an optical material comprising the composition, and more specifically, to provide an optical material composition with which it possible to form plastic lenses having a high blue light reduction rate.
Inventors:
OHARA AYAKO (JP)
HANASAKI TAICHI (JP)
TAKENAKA JUNJI (JP)
MOMODA JUNJI (JP)
HANASAKI TAICHI (JP)
TAKENAKA JUNJI (JP)
MOMODA JUNJI (JP)
Application Number:
PCT/JP2019/049279
Publication Date:
June 25, 2020
Filing Date:
December 17, 2019
Export Citation:
Assignee:
TOKUYAMA CORP (JP)
International Classes:
C08F20/10; C08F2/44; C08F2/48; G02C7/00
Domestic Patent References:
| WO2005095490A1 | 2005-10-13 |
Foreign References:
| JP2018016778A | 2018-02-01 | |||
| JP2012173704A | 2012-09-10 | |||
| JP2012041333A | 2012-03-01 | |||
| JP2003327583A | 2003-11-19 |
Other References:
See also references of EP 3901184A4
Attorney, Agent or Firm:
TAGUCHI, Masahiro et al. (JP)
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