Nitrogen Or Halogen Bonded Directly To The Anthracene Configured Ring System Patents (Class 552/235)
  • Patent number: 7351451
    Abstract: A liquid crystal composition comprising at least one liquid crystal compound and at least one anthraquinone compound represented by formula (1) below: Formula (1) (wherein R2 to R8 each independently represents a hydrogen or substituent; Het is a sulfur or oxygen; B1 and B2 each independently represents an optionally substituted arylene, heteroarylene, cycloalkan-diyl or cycloalken-diyl; Q1 is a bivalent linking group; C1 is an optionally substituted alkyl, cycloalkyl, alkoxy, alkokycarbonyl or acyloxy; p, q and r each represents a number from 0 to 5 and n is a number from 1 to 3 satisfying 3?(p+r)×n?10; when plural {(B1)p-(Q1)q-(B2)r} are present, these may be the same or different) was disclosed
    Type: Grant
    Filed: July 2, 2002
    Date of Patent: April 1, 2008
    Assignee: Fujifilm Corporation
    Inventors: Hisashi Okamura, Takashi Katoh
  • Patent number: 7220465
    Abstract: A novel liquid crystal composition is disclosed. The composition comprises at least one liquid crystal and at least one compound represented by a formula (1), wherein R1 and R2 respectively represent an optionally substituted aryl group and optionally substituted heteroaryl group; R7 and R8 respectively represent an optionally substituted aryl group; R3, R4, R5 and R6 respectively represent a hydrogen atom or a substituent.
    Type: Grant
    Filed: November 10, 2004
    Date of Patent: May 22, 2007
    Assignee: Fujifilm Corporation
    Inventor: Hirotaka Kitagawa
  • Patent number: 6870063
    Abstract: Disclosed are thermally-stable, anthraquinone colorant compounds (dyes) which contain one or more vinyl groups which render the compounds copolymerizable with reactive vinyl monomers to produce colored, polymeric compositions such as acrylate and methacrylate polymeric materials. The compounds possess good fastness (stability) to ultraviolet (UV) light, good solubility in vinyl monomers, good color strength and excellent thermal stability. Also disclosed are (1) coating composition comprising (i) one or more polymerizable vinyl compounds, (ii) one or more of the dye compounds described above, and (iii) a photoinitiator and (2) polymeric materials, i.e., polymers derived from one or more acrylic acid esters, one or more methacrylic acid esters, one or more other polymerizable vinyl compounds or mixtures of any two or more thereof, having copolymerized therein one or more of the anthraquinone colorant compounds.
    Type: Grant
    Filed: November 21, 2003
    Date of Patent: March 22, 2005
    Assignee: Eastman Chemical Company
    Inventors: Michael John Cyr, Max Allen Weaver, Gerry Foust Rhodes, Jason Clay Pearson, Phillip Michael Cook, Jos Simon De Wit, Larry Keith Johnson
  • Patent number: 6787658
    Abstract: Disclosed are thermally-stable, anthraquinone colorant compounds (dyes) which contain one or more vinyl groups which render the compounds copolymerizable with reactive vinyl monomers to produce colored, polymeric compositions such as acrylate and methacrylate polymeric materials. The compounds possess good fastness (stability) to ultraviolet (UV) light, good solubility in vinyl monomers, good color strength and excellent thermal stability. Also disclosed are (1) coating composition comprising (i) one or more polymerizable vinyl compounds, (ii) one or more of the dye compounds described above, and (iii) a photoinitiator and (2) polymeric materials, i.e., polymers derived from one or more acrylic acid esters, one or more methacrylic acid esters, one or more other polymerizable vinyl compounds or mixtures of any two or more thereof, having copolymerized therein one or more of the anthraquinone colorant compounds.
    Type: Grant
    Filed: November 21, 2003
    Date of Patent: September 7, 2004
    Assignee: Eastman Chemical Company
    Inventors: Michael John Cyr, Max Allen Weaver, Gerry Foust Rhodes, Jason Clay Pearson, Phillip Michael Cook, Jos Simon De Wit, Larry Keith Johnson
  • Patent number: 6033742
    Abstract: A liquid crystal display device comprises, a pair of substrates having an electrode on a surface thereof, and a liquid crystal layer containing a liquid crystal and a dichroic dye, wherein the dichroic dye is an anthraquinone dye exhibiting 0.08 or less of Y value represented by the following equation,Y={.SIGMA..DELTA.H tr,m/268-.SIGMA..DELTA.S tr,m}(kJK.sup.-1 kg.sup.-1)wherein .SIGMA..DELTA.H tr,m is a sum of an enthalpy change of transition from -5.degree. C. to the melting point of and an enthalpy change of melting per unit weight, and .SIGMA..DELTA.S tr,m is a sum of an entropy change of transition from -5.degree. C. to the melting point and an entropy change of melting per unit weight.
    Type: Grant
    Filed: March 30, 1998
    Date of Patent: March 7, 2000
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Hiroki Iwanaga, Katsuyuki Naito
  • Patent number: 5493036
    Abstract: The invention relates to fibre-reactive anthraquinone dyes of formula ##STR1## wherein R.sub.1, R.sub.2, B, U, R and n are as defined in claim 1. The anthraquinone dyes of formula (1) are suitable for dyeing or printing hydroxyl group containing or nitrogen-containing fibre materials and give dyeings or prints of good allround fastness properties.
    Type: Grant
    Filed: September 19, 1994
    Date of Patent: February 20, 1996
    Assignee: Ciba-Geigy Corporation
    Inventor: Jean-Marie Adam
  • Patent number: 5480873
    Abstract: Pharmaceutical compounds of the formula ##STR1## in which R.sup.1 and R.sup.2 are each hydrogen, hydroxyl, halo, C.sub.1-4 alkyl, C.sub.1-4 alkoxy, acyloxy, --O-glucoside, optionally substituted phenyl or optionally substituted phenyl-C.sub.1-4 alkoxy;R.sup.3 istetrazolyl, orand R.sup.4 and R.sup.5 are each hydrogen, hydroxy, acyloxy, nitro, C.sub.1-4 alkyl, C.sub.1-4 alkoxy, halo, optionally substituted phenyl, --SO.sub.3 H or --NR'R" where R' and R" are each hydrogen or C.sub.1-4 alkyl;provided that when R.sup.3 is --CR'R".CHR'"CO.sub.2 H or tetrazolyl, R.sup.1 and R.sup.2 are each hydroxyl, halo, C.sub.1-4 alkyl, C.sub.1-4 alkoxy, acyloxy, --O-glucoside, optionally substituted phenyl or optionally substituted phenyl C.sub.1-4 alkoxy; andor a pharmaceutically acceptable salt or ester thereof.
    Type: Grant
    Filed: February 25, 1993
    Date of Patent: January 2, 1996
    Assignee: Lilly Industries Limited
    Inventors: Michael Brunavs, Colin P. Dell, David R. Dobson, Peter T. Gallagher, Terence A. Hicks, William M. Owton, Colin W. Smith
  • Patent number: 5352247
    Abstract: Anthraquinone dyes of the formula ##STR1## in which A, R.sub.1, R.sub.2, R.sub.3 and n are as defined in claim 1, produce dyeings having good fastness properties on nitrogen-containing or hydroxyl-containing fibre materials.
    Type: Grant
    Filed: November 30, 1993
    Date of Patent: October 4, 1994
    Assignee: Ciba-Geigy Corporation
    Inventor: Jean-Marie Adam
  • Patent number: 5034547
    Abstract: New anthraquinone dyes, free of water-solubilizing groups such as --SO.sub.3 H and --CO.sub.2 H comprise anthraquinone substituted with one or more identical or different groups of the formula --NHSO.sub.2 R, wherein R is a substituted or unsubstituted linear, branched, cyclic or polycyclic alkyl group having up to 20 carbon atoms, and wherein the remaining nuclear aromatic carbon atoms of the anthraquinone may be substituted with substituents selected from the group: alkyl; the halogens F, Cl, and Br; cyano; nitro; aminosulfonyl; arylsulfonylamino; and --NHCOQ; wherein Q is hydrogen, an alkyl, an aryl, or a heterocyclic group.These dyes have improved solubility, lowered melting point, and possess outstanding resistance to light-induced fading.
    Type: Grant
    Filed: July 21, 1989
    Date of Patent: July 23, 1991
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Terrance P. Smith, Krzysztof A. Zaklika
  • Patent number: 5030387
    Abstract: An organic conductive complex comprising an electron donor and an electron acceptor, the electron donor being an anthraquinone derivative represented by formula (1): ##STR1## wherein X.sup.1, X.sup.2, X.sup.3 and X.sup.4, which may be the same or different, each represents an electron donating group.
    Type: Grant
    Filed: June 27, 1989
    Date of Patent: July 9, 1991
    Assignee: Sumitomo Electric Industries Ltd.
    Inventors: Masaru Matsuoka, Teijiro Kitao, Yo Shimizu
  • Patent number: 4921959
    Abstract: An anthraquinone compound represented by formula: ##STR1## wherein R and X are as defined in the specification, and a polarizing film containing the same. The anthraquinone compound exhibits satisfactory compatibility with organic polymers and high dichroism, and the polarizing films have excellent performance characteristics.
    Type: Grant
    Filed: April 27, 1989
    Date of Patent: May 1, 1990
    Assignee: Mitsubishi Chemical Industries Limited
    Inventors: Konoe Miura, Tetsuo Ozawa, Seigo Okumura, Shinji Kubo
  • Patent number: 4883611
    Abstract: Dichroic coloring agents which have a blue to blue-violet hue and have not been used to date for liquid crystal displays are disclosed. These coloring agents are represented by the following formula: ##STR1## wherein X is S or NH; R.sub.1 is a hydrogen atom, halogen atom, alkyl group or alkoxy group; and R.sub.2 is a hydrogen atom, alkyl group, aryl group or aralkyl group.
    Type: Grant
    Filed: September 9, 1988
    Date of Patent: November 28, 1989
    Assignee: Mitsui Toatsu Chemicals, Incorporated
    Inventors: Keisuke Takuma, Sizuo Kuroda, Tsukasa Oyama, Hiroshi Aiga