Title:
PHOTOCHROMIC MATERIAL
Document Type and Number:
WIPO Patent Application WO/2011/096643
Kind Code:
A1
Abstract:
Photochromic dyes are disclosed. A photochromic dye can include a first photo-reactive group and a second photo- reactive group. A first photochromic reaction can be induced in the first photo-reactive group of the photochromic dye by radiation having a first wavelength, and a second photochromic reaction can be induced in the second photo- reactive group of the photochromic dye by radiation having a second wavelength. The second wavelength may be greater than the first wavelength.
Inventors:
CHOI DONG HOON (KR)
Application Number:
PCT/KR2010/009128
Publication Date:
August 11, 2011
Filing Date:
December 20, 2010
Export Citation:
Assignee:
UNIV KOREA RES & BUS FOUND (KR)
CHOI DONG HOON (KR)
CHOI DONG HOON (KR)
International Classes:
G03C1/73; C09B57/00; C09K9/02; G03C1/685; G09B19/00
Domestic Patent References:
| WO2010020770A1 | 2010-02-25 |
Foreign References:
| US20030045714A1 | 2003-03-06 | |||
| JPH0565477A | 1993-03-19 | |||
| JPH0543870A | 1993-02-23 | |||
| EP1433620A2 | 2004-06-30 | |||
| US20080055686A1 | 2008-03-06 |
Other References:
GUGLIELMETTI R.: "New polyphotochromic systems involving spirooxazine and/or chromene joined by a (Z) ethylenic bridge", ADVANCES IN COLOUR SCIENCE AND TECHNOLOGY, vol. 5, no. 4, 2002, pages 113 - 116
ORTICA F. ET AL: "Photokinetic behaviour of biphotochromic supramolecular systems Part 2. A bis-benzo-[2H]-chromene and a spirooxazine-chromene with a (Z-)ethenic bridge between each moiety", J. PHOTOCHEM. PHOTOBIOL. A: CHEMISTRY, vol. 139, 2001, pages 133 - 141, XP002970272, DOI: doi:10.1016/S1010-6030(01)00371-9
YIP W.T. ET AL: "Energy Transfer in Bichromophoric Molecules: The Effect of Symmetry and Donor/Acceptor Energy Gap", J. PHYS. CHEM. A, vol. 103, 1999, pages 10 - 20
ORTICA F. ET AL: "Photokinetic behaviour of biphotochromic supramolecular systems Part 2. A bis-benzo-[2H]-chromene and a spirooxazine-chromene with a (Z-)ethenic bridge between each moiety", J. PHOTOCHEM. PHOTOBIOL. A: CHEMISTRY, vol. 139, 2001, pages 133 - 141, XP002970272, DOI: doi:10.1016/S1010-6030(01)00371-9
YIP W.T. ET AL: "Energy Transfer in Bichromophoric Molecules: The Effect of Symmetry and Donor/Acceptor Energy Gap", J. PHYS. CHEM. A, vol. 103, 1999, pages 10 - 20
Attorney, Agent or Firm:
DANA PATENT LAW FIRM (BYC Bldg. 648-1,Yeoksam-dong, Gangnam-gu, Seoul 135-080, KR)
Download PDF:
Claims: