Title:
ULTRAVIOLET ABSORBER, RESIN COMPOSITION, CURED OBJECT, OPTICAL MEMBER, METHOD FOR PRODUCING ULTRAVIOLET ABSORBER, AND COMPOUND
Document Type and Number:
WIPO Patent Application WO/2022/059544
Kind Code:
A1
Abstract:
An ultraviolet absorber comprising a compound represented by formula (1) and, in an ethyl acetate solution, having a maximum-absorption wavelength in the wavelength range of 350-390 nm, wherein a value obtained by dividing an absorbance at a wavelength of 430 nm by an absorbance at the maximum-absorption wavelength is 0.01 or less; a resin composition containing the ultraviolet absorber; a cured object; an optical member; a method for producing the ultraviolet absorber; and the compound. In formula (1), X1 and X2 each independently represent a cyano group, etc., R1 and R2 each independently represent an alkyl group, etc., and R3 and R4 each independently represent a hydrogen atom, a halogen atom, an alkyl group, an aryl group, an alkoxy group, or an aryloxy group.
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Inventors:
SASAKI DAISUKE (JP)
FURUYAMA HIDETOMO (JP)
SAKAI YUSUKE (JP)
HAYASHI SHINYA (JP)
JIMBO YOSHIHIRO (JP)
AZUMA ATSUSHI (JP)
FURUYAMA HIDETOMO (JP)
SAKAI YUSUKE (JP)
HAYASHI SHINYA (JP)
JIMBO YOSHIHIRO (JP)
AZUMA ATSUSHI (JP)
Application Number:
PCT/JP2021/032668
Publication Date:
March 24, 2022
Filing Date:
September 06, 2021
Export Citation:
Assignee:
FUJIFILM CORP (JP)
International Classes:
C08K5/45; C08L101/00; C09K3/00
Foreign References:
| JP2009096974A | 2009-05-07 | |||
| JP2009096971A | 2009-05-07 | |||
| JP2011074070A | 2011-04-14 | |||
| JP2010254949A | 2010-11-11 | |||
| JPS4911155B1 | 1974-03-15 |
Attorney, Agent or Firm:
SIKs & Co. (JP)
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