Title:
LUMINANCE IMPROVER AND METHOD OF IMPROVING LUMINANCE FOR PHOSPHORESCENT SUBSTANCE, HIGH-LUMINANCE PHOSPHORESCENT COMPOSITIONS, AND HIGH-LUMINANCE PHOSPHORESCENT SHEET MADE USING THE SAME
Document Type and Number:
WIPO Patent Application WO/2000/060025
Kind Code:
A1
Abstract:
A luminance improver for phosphorescent substances which comprises at least one of a fluorescent pigment having a fluorescence peak at a wavelength in the range of 300 to 480 nm, benzotriazole, and a benzophenone compound; a high-luminance phosphorescent composition comprising the luminance improver and a phosphorescent substance; and a high-luminance phosphorescent composition comprising the composition and a transparent resin. Thus, the luminance of a phosphorescent substance can be heightened without increasing the amount thereof.
Inventors:
HAYASHI TORAO (JP)
MASHIMA SHIGERU (JP)
SAKAGUCHI HIROSHI (JP)
ASAI SATOSHI (JP)
MASHIMA SHIGERU (JP)
SAKAGUCHI HIROSHI (JP)
ASAI SATOSHI (JP)
Application Number:
PCT/JP1999/002345
Publication Date:
October 12, 2000
Filing Date:
April 30, 1999
Export Citation:
Assignee:
SOMAR CORP (JP)
HAYASHI TORAO (JP)
MASHIMA SHIGERU (JP)
SAKAGUCHI HIROSHI (JP)
ASAI SATOSHI (JP)
HAYASHI TORAO (JP)
MASHIMA SHIGERU (JP)
SAKAGUCHI HIROSHI (JP)
ASAI SATOSHI (JP)
International Classes:
C09K11/02; C09K11/64; (IPC1-7): C09K11/08; C08K3/00; C08K5/07; C08L101/00; C09K5/3457
Foreign References:
| JPH1036834A | 1998-02-10 | |||
| JPH07247391A | 1995-09-26 | |||
| JPH08183955A | 1996-07-16 | |||
| JPH0940944A | 1997-02-10 | |||
| JPH0995671A | 1997-04-08 |
Attorney, Agent or Firm:
Ikeura, Toshiaki (Yoyogi 1-chome Shibuya-ku Tokyo, JP)
Download PDF: