Title:
PHOTOCHROMIC MATERIAL
Document Type and Number:
WIPO Patent Application WO/2002/070624
Kind Code:
A1
Abstract:
A photochromic material which has a quantum yield in ring-opening reaction of 10?-3¿ or lower and suffers no color fading in the ambient light. This material comprises a diheteroarylethene compound, in which each heteroaryl group has an alkoxyl group and an aryl group.
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Inventors:
IRIE MASAHIRO (JP)
Application Number:
PCT/JP2002/001946
Publication Date:
September 12, 2002
Filing Date:
March 04, 2002
Export Citation:
Assignee:
JAPAN SCIENCE & TECH CORP (JP)
IRIE MASAHIRO (JP)
IRIE MASAHIRO (JP)
International Classes:
C07D277/34; C07D307/58; C07D333/32; C09K9/02; G03C1/73; G11B7/244; (IPC1-7): C09K9/02; C07D307/58; G03C1/73
Foreign References:
JP2001049244A | 2001-02-20 | |||
JP2001048875A | 2001-02-20 | |||
JP2000321714A | 2000-11-24 | |||
JP2000256665A | 2000-09-19 | |||
JP2000256664A | 2000-09-19 |
Other References:
KATSUNORI SHIBATA ET AL., CHEMISTRY LETTERS, vol. 7, 5 July 2001 (2001-07-05), pages 618 - 619, XP008000406
See also references of EP 1367111A4
See also references of EP 1367111A4
Attorney, Agent or Firm:
Shigeno, Tsuyoshi (9th floor 5-1, Shinjuku 2-chome Shinjuku-ku Tokyo, JP)
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