Stock material or miscellaneous articles – Liquid crystal optical display having layer of specified...
Reexamination Certificate
2006-10-17
2006-10-17
Wu, Shean C (Department: 1756)
Stock material or miscellaneous articles
Liquid crystal optical display having layer of specified...
C252S299010, C252S299200, C252S299610, C252S299620, C252S299630, C252S299640, C252S299650, C252S299660, C252S299670, C560S076000, C560S085000
Reexamination Certificate
active
07122227
ABSTRACT:
The invention relates to chiral photoisomerizable compounds of formula (I) wherein X1, X2, X3, X4, X5and X6have the meanings given in claim1, to liquid crystalline mixtures and polymers containing them, and to the use of chiral photoisomerizable compounds, liquid crystalline mixtures and polymers containing them in optical and electrooptical devices like liquid crystal displays or projection systems, in optical elements like polarizers, retardation films, compensators, color filters or holographic elements, in liquid crystal pigments and colored films or coatings for decorative or security applications, cosmetic and pharmaceutical compositions, in nonlinear optics and optical information storage.
REFERENCES:
patent: 6319963 (2001-11-01), Coates et al.
patent: 6495217 (2002-12-01), Farrand
patent: 6511719 (2003-01-01), Farrand
patent: 6680003 (2004-01-01), Chuard et al.
patent: 6905739 (2005-06-01), Cherkaoui et al.
patent: 6953611 (2005-10-01), Hammond-Smith et al.
patent: 2328207 (1999-02-01), None
patent: 08-020641 (1996-01-01), None
Yun, Y-K; Ko, D-H; Jin, J-I; Kang, Y.S.; Zin, W-C; Jo, B-W. “Synthesis and Characterization fo New Chiral Side Chain Liquid Crystalline Polyoxetanes”, Macromolecules 2000, 33, 6653-6663 (web published Aug. 10, 2000).
Hattori, H.; Uryu, T., “Photochromic chiral liquid crystalline systems containing spiro-oxazine with a chiral substituent I. Synthesis and characterization of compounds”, Liquid Crystals, 2001, vol. 28, No. 1, pp. 25-34.
Ritter, O.M.S; Merlo, A.A.; Pereira, F.V.; Da Silveira, N.P.; Geissler, E.; Zukerman-Schpector, J. “Synthesis and characterization of new chiral liquid crystalline polyacrylates from L-isoleucine”, Liquid Crystals, 2002, No. 9, 1187-1200.
English translation of Yusuke et al.
K. Yokota et al., “Chirality induction in cyclopolymerization XI. Bulkiness effect of 1,2-diol templateson cyclopolymerations of bis(4-vinylbenzoate)s with styrene,” Polymer Journal, 1999, pp. 1037-1040, vol. 31, No. 11-2, XP001053658, Scheme 1, Compound 1e.
S. M. Kelly et al., “Four-unit linking groups V. optically active dopants,” Liquid Crystals, 1992, pp. 761-771, vol. 11, No. 5, XP002192313, table 3.
Witte Van De P et al., “Modification of the pitch of chiral nematic liquid crystals by means of photisomerization of chiral dopants,” Liquid Crystals, Jun. 1, 1998, pp. 819-827, vol. 24, No. 6, XP000773004, ISSN: 0267-8292, cited in the application, the whole document, Taylor and Francis Ltd, London, GB.
Deussenn H-J et al., “New 6,-6-disubstituted-binaphthol derivatives as chiral dopants: Synthesis and temperature dependence of molecular conformations,” Liquid Crystals, Sep. 1, 1996, p. 327-340, vol. 21, No. 3, XP000629493, ISSN: 0267-8292, cited in the application, the whole document, Taylor and Francis Ltd, London, GB.
Dunn Christopher
Greenfield Simon
Harding Richard
Hassall Ian Victor Edward
Jenkins Tony
Merck Patent Gesellschaft
Millen White Zelano & Branigan P.C.
Wu Shean C
LandOfFree
Chiral photoisomerizable compounds does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Chiral photoisomerizable compounds, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Chiral photoisomerizable compounds will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3718357