Title:
ULTRAVIOLET ABSORBER
Document Type and Number:
Japanese Patent JP2009096984
Kind Code:
A
Abstract:
To provide a low-volatility ultraviolet absorber excellent in ultraviolet absorbing power in the UV-A and UV-B range and having no absorption in the visible range.
The ultraviolet absorber is represented by general formula (UL), wherein A represents at least one type of ultraviolet absorbing residue which has a maximum absorption wavelength of 360-400 nm, a half-value width of 55 nm, and a molar absorbance coefficient of 20,000 at the maximum absorption wavelength; B represents at least one type of ultraviolet absorbing residue which has, at 320 nm, an absorbance of 30% of that at the maximum absorption wavelength, and has the maximum absorption wavelength of 360 nm; La represents a linking group; and y represents an integer of 1.
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Inventors:
HANAKI NAOYUKI
YAHATA TOSHIHIKO
KANEKO AKIHIRO
MIKOSHIBA TAKASHI
YAHATA TOSHIHIKO
KANEKO AKIHIRO
MIKOSHIBA TAKASHI
Application Number:
JP2008154084A
Publication Date:
May 07, 2009
Filing Date:
June 12, 2008
Export Citation:
Assignee:
FUJIFILM CORP
International Classes:
C09K3/00; C07D249/20; C07D251/16; C07D295/14; C07D339/06; C07D409/12; C07D495/04
Attorney, Agent or Firm:
Toshizo Iida
Wataru Sasaki
Naosuke Miyamae
Wataru Sasaki
Naosuke Miyamae