Benzene Ring Containing Patents (Class 570/127)
  • Patent number: 7943567
    Abstract: Production processes and systems are provided that include reacting halogenated compounds, dehalogenating compounds, reacting alcohol's, reacting olefins and a saturated compounds, reacting reactants having at least two —CF3 groups with reactants having cyclic groups. RF-compositions such as RF-intermediates, RF-surfactants, RF-monomers, RF-monomer units, RF-metal complexes, RF-phosphate esters, RF-glycols, RF-urethanes, and/or RF-foam stabilizers. The RF portion can include at least two —CF3 groups, at least three —CF3 groups, and/or at least two —CF3 groups and at least two —CH2— groups. Detergents, emulsifiers, paints, adhesives, inks, wetting agents, foamers, and defoamers including the RF-surfactant composition are provided. Acrylics, resins, and polymers are provided that include a RF-monomer unit. Compositions are provided that include a substrate having a RF-composition thereover.
    Type: Grant
    Filed: January 28, 2005
    Date of Patent: May 17, 2011
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Janet Boggs, Stephan Brandstadter, John Chien, Vimal Sharma, E. Bradley Edwards, Vicki Hedrick, Andrew Jackson, Gregory Leman, Edward Norman, Robert Kaufman
  • Patent number: 7939697
    Abstract: A method for producing a fluorine-containing organic compound represented by the formula (7): R—Fm??(7) wherein R represents a substituted or unsubstituted saturated hydrocarbon group, or a substituted or unsubstituted aromatic group and m represents an integer satisfying the inequality: 1?m?n, which comprises reacting a fluorinating agent represented by the formula (1): wherein R1 and R3 are the same or different, and represent an optionally substituted alkyl group, R2, R4 and R5 are the same or different, and represent a hydrogen atom or an optionally substituted alkyl group, x satisfies 0<x?1, and Y? represents a monovalent anion other than a fluoride ion, with an organic compound of the formula (6): R-Ln??(6) wherein R is the same as defined above, L represents a leaving group and n represents an integer of 1 or more, and a fluorinating agent using the same are described.
    Type: Grant
    Filed: July 23, 2009
    Date of Patent: May 10, 2011
    Assignee: Sumitomo Chemical Company, Limited
    Inventor: Koji Hagiya
  • Patent number: 7879911
    Abstract: Compounds having the formula wherein the symbols have the meaning described in the specification are hydroxamic acid derivatives of phenoxy-acetic acids and analogs capable of inhibiting the lethal effects of infection by anthrax bacteria and are useful in the treatment of poisoning by anthrax.
    Type: Grant
    Filed: January 30, 2008
    Date of Patent: February 1, 2011
    Inventors: Alan T. Johnson, Guan-Sheng Jiao, Seongjin Kim
  • Publication number: 20110009638
    Abstract: Disclosed is a method for preparing a compound of Formula 1 wherein Q and Z are as defined in the disclosure comprising distilling water from a mixture comprising a compound of Formula 2, a compound of Formula 3, a base comprising at least one compound selected from the group consisting of alkaline earth metal hydroxides of Formula 4 wherein M is Ca, Sr or Ba, alkali metal carbonates of Formula 4a wherein M1 is Li, Na or K, 1,5-diazabicyclo[4.3.0]non-5-ene and 1,8-diazabicyclo[5.4.0]undec-7-ene, and an aprotic solvent capable of forming a low-boiling azeotrope with water.
    Type: Application
    Filed: April 8, 2009
    Publication date: January 13, 2011
    Applicant: E.I. DU PONT DE NEMOURS AND COMPANY
    Inventor: Gary David Annis
  • Patent number: 7846513
    Abstract: A compound represented by the following formula (1), a liquid crystal composition containing the compound and a liquid crystal display device containing the composition: all the symbols in the formula (1) are defined in the specification.
    Type: Grant
    Filed: November 9, 2005
    Date of Patent: December 7, 2010
    Assignees: Chisso Corporation, Chisso Petrochemical Corporation
    Inventor: Yasuyuki Sasada
  • Patent number: 7838087
    Abstract: Known compounds showing negative dielectric anisotropy show negative dielectric anisotropy of relatively large values but are not satisfactory in view of the balance of the physical property as the liquid crystal material such as having low clearing point and showing high viscosity. The present invention intends to provide a liquid crystalline compound showing a negative dielectric anisotropy, as well as having excellent balance for physical property such as having relatively high clearing point, relatively low viscosity, appropriate optical anisotropy, and excellent compatibility with other liquid crystalline compounds. The compound of the invention is a compound represented by Formula (1) or Formula (2).
    Type: Grant
    Filed: March 29, 2005
    Date of Patent: November 23, 2010
    Assignees: Chisso Corporation, Chisso Petrochemical Corporation
    Inventors: Syuichi Matsui, Yasuyuki Sasada
  • Patent number: 7767277
    Abstract: Disclosed are compounds of formula I processes for the preparation thereof, and liquid-crystalline media and electro-optical displays containing said compounds.
    Type: Grant
    Filed: September 12, 2007
    Date of Patent: August 3, 2010
    Assignee: Merck Patent Gesellschaft mit beschrankter Haftung
    Inventors: Lars Lietzau, Markus Czanta, Harald Hirschmann, Michael Wittek
  • Patent number: 7758931
    Abstract: Such a liquid crystal compound is provided that has stability to heat, light and so forth, has a nematic phase in a wide temperature range, has a small viscosity, a suitable optical anisotropy, and suitable elastic constants K33 and K11 (K33: bend elastic constant, K11: splay elastic constant), and has suitable negative dielectric anisotropy and excellent compatibility with other liquid crystal compounds. A liquid crystal composition containing the liquid crystal compound, and a liquid crystal display device containing the liquid crystal composition are also provided.
    Type: Grant
    Filed: June 29, 2009
    Date of Patent: July 20, 2010
    Assignees: Chisso Corporation, Chisso Petrochemical Corporation
    Inventors: Yasuyuki Goto, Teru Shimada, Teruyo Sugiura
  • Patent number: 7695777
    Abstract: A liquid crystal compound selected from a group of compounds represented by formula (a): wherein Ra and Rb are each independently alkyl having 1 to 10 carbons, alkoxy having 1 to 9 carbons, alkoxyalkyl having 2 to 9 carbons, alkenyl having 2 to 10 carbons, alkenyloxy having 2 to 9 carbons, fluoroalkyl having 1 to 10 carbons or fluoroalkoxy having 1 to 9 carbons; ring A1, ring A2 and ring A3 are each independently trans-1,4-cyclohexylene, trans-1,3-dioxane-2,5-diyl, trans-tetrahydropyran-2,5-diyl, 1,4-phenylene, 2-fluoro-1,4-phenylene, 2,3-difluoro-1,4-phenylene, 2,5-difluoro-1,4-phenylene, 2,6-difluoro-1,4-phenylene, pyridine-2,5-diyl, 6-fluoropyridine-2,5-diyl or pyridazine-2,5-diyl; Z1, Z2 and Z3 are each independently a single bond, —(CH2)2—, —CH?CH—, —C?C—, —CH2O, —OCH2—, —COO—, —OCO—, —OCF2—, —CF2O—, —CH2CH2OCF2— or —CF2OCH2CH2—; l, m and n are each independently 0, 1 or 2, provided that l+m+n is 0, 1, 2 or 3; one of X1 and X2 is fluorine, and the other is chlorine; Q is and atoms comprising the
    Type: Grant
    Filed: September 5, 2007
    Date of Patent: April 13, 2010
    Assignees: Chisson Corporation, Chisso Petrochemical Corporation
    Inventors: Yasuyuki Goto, Teru Shimada, Hiroaki Fujita, Norikatsu Hattori
  • Patent number: 7652178
    Abstract: A composition comprising perfluoro-[2,2]-paracyclophane dimer compound is disclosed. The synthesis reaction of the paracyclophane dimer from 1,4-bis(chlorodifluoromethane)-2,3,5,6-tetrafluorobenzene involves heating in the presence of a metal catalyst and a solvent. A perfluorinated paraxylylene coating formed from the perfluorinated paracyclophane dimer is also disclosed.
    Type: Grant
    Filed: February 26, 2007
    Date of Patent: January 26, 2010
    Assignee: Specialty Coating Systems, Inc.
    Inventors: William R. Dolbier, Jr., Puhui Xie, Rakesh Kumar
  • Publication number: 20100016607
    Abstract: The subject invention relates to a process for the synthesis of highly active binary metal fluoride system for the fluorination of aromatic compounds. Fluorinated aromatic compounds are valuable synthons for the chemical synthesis of pharmaceutical drugs and novel polymers. Fluorobenzene is used to control carbon content in steel manufacturing, is an intermediate for pharmaceuticals, pesticides and other organic compounds. Fluorobenzene is typically produced by the reaction of aniline and sodium nitrite in the presence of hydrogen fluoride. The present invention relates to a process for the synthesis of highly active binary metal fluoride system consists of copper (II) fluoride and aluminum (III) fluoride for the fluorination of aromatic compounds in gas phase and recycling of the reagent, in situ, using O2 and HF.
    Type: Application
    Filed: December 11, 2007
    Publication date: January 21, 2010
    Applicant: University of Florida Research Foundation Inc.
    Inventors: William R. Dolbier, JR., Krishna Murthy Janmanchi
  • Publication number: 20090287025
    Abstract: A method for producing a fluorine-containing organic compound represented by the formula (7): R—Fm??(7) wherein R represents a substituted or unsubstituted saturated hydrocarbon group, or a substituted or unsubstituted aromatic group and m represents an integer satisfying the inequality: 1?m?n, which comprises reacting a fluorinating agent represented by the formula (1): wherein R1 and R3 are the same or different, and represent an optionally substituted alkyl group, R2, R4 and R5 are the same or different, and represent a hydrogen atom or an optionally substituted alkyl group, x satisfies 0<x?1, and Y? represents a monovalent anion other than a fluoride ion, with an organic compound of the formula (6): R-Ln??(6) wherein R is the same as defined above, L represents a leaving group and n represents an integer of 1 or more, and a fluorinating agent using the same are described.
    Type: Application
    Filed: July 23, 2009
    Publication date: November 19, 2009
    Inventor: Koji Hagiya
  • Patent number: 7612243
    Abstract: The present invention relates to cyclopenta[b]naphthalene derivatives to the use thereof in liquid-crystalline or mesogenic media, to liquid-crystalline or mesogenic media comprising at least one of these cyclopenta[b]naphthalene derivatives, and to electro-optical display elements containing these liquid-crystalline or mesogenic media.
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: November 3, 2009
    Assignee: Merck Patent GmbH
    Inventors: Lars Lietzau, Matthias Bremer, Melanie Klasen-Memmer, Michael Heckmeier
  • Publication number: 20090264683
    Abstract: Such a liquid crystal compound is provided that has stability to heat, light and so forth, has a nematic phase in a wide temperature range, has a small viscosity, a suitable optical anisotropy, and suitable elastic constants K33 and K11 (K33: bend elastic constant, K11: splay elastic constant), and has suitable negative dielectric anisotropy and excellent compatibility with other liquid crystal compounds. A liquid crystal composition containing the liquid crystal compound, and a liquid crystal display device containing the liquid crystal composition are also provided.
    Type: Application
    Filed: June 29, 2009
    Publication date: October 22, 2009
    Applicants: CHISSO CORPORATION, CHISSO PETROCHEMICAL CORPORATION
    Inventors: YASUYUKI GOTO, Teru Shimada, Teruyo Sugiura
  • Patent number: 7597959
    Abstract: A fluorescent nanoparticle includes a core comprising an alkenylbenzene; an intermediate layer, an outer shell layer, and a fluorescent portion. The fluorescent portion includes a structure represented by the following formula: wherein L is a direct bond or a linker group, and F is any fluorescent moiety. The fluorescent portion is located in at least one of the following locations: the core, the intermediate layer, or the shell layer of the nanoparticle. Methods for making the fluorescent nanoparticle are also described.
    Type: Grant
    Filed: December 19, 2006
    Date of Patent: October 6, 2009
    Assignee: Bridgestone Corporation
    Inventors: Xiaorong Wang, Christine Rademacher
  • Patent number: 7569258
    Abstract: Such a liquid crystal compound is provided that has stability to heat, light and so forth, has a nematic phase in a wide temperature range, has a small viscosity, a suitable optical anisotropy, and suitable elastic constants K33 and K11 (K33: bend elastic constant, K11: splay elastic constant), and has suitable negative dielectric anisotropy and excellent compatibility with other liquid crystal compounds. A liquid crystal composition containing the liquid crystal compound, and a liquid crystal display device containing the liquid crystal composition are also provided.
    Type: Grant
    Filed: March 3, 2006
    Date of Patent: August 4, 2009
    Assignees: Chisso Corporation, Chisso Petrochemical Corporation
    Inventors: Yasuyuki Goto, Teru Shimada, Teruyo Sugiura
  • Publication number: 20090171130
    Abstract: A method for producing 1,4-bis(bromodifluoromethyl)tetrafluorobenzene (BFTFB) is disclosed. The target compound is predicted as a very potent monomer for low dielectric constant material. This method comprises the following steps: (a) mixing 1,4-bis(bromodifluoromethyl)tetrafluorobenzene (DFMTFB), a bromination agent, and a solvent (with or without) to form a mixture; (b) heating the mixture under UV radiation; and (c) purifying the resultant to obtain 1,4-bis(bromodifluoromethyl)tetrafluorobenzene (BFTFB) with high purity.
    Type: Application
    Filed: July 29, 2008
    Publication date: July 2, 2009
    Applicants: Chung-shan Institute of Science and Technology. Armaments Bureau. M.N.D., Yuan-Shin Materials Technology Corp.
    Inventors: Chuan-Yu Chou, Po-Chen Chang, Chun-Hsu Lin, Shieh-Jun Wang
  • Patent number: 7544400
    Abstract: The invention relates to bimesogenic compounds of formula (I): R1-MG1-X1-Sp-X2-MG2-R2 wherein R1, R2, MG1, MG2, X1, X2 and Sp have the meaning given in claim 1, to the use of bimesogenic compounds of formula (I) in liquid crystal media and devices, in particular in flexoelectric liquid crystal devices, to liquid crystal media and devices, in particular flexoelectric devices, comprising bimesogenic compounds of formula (I) and to improvements in flexoelectric devices.
    Type: Grant
    Filed: November 28, 2005
    Date of Patent: June 9, 2009
    Assignee: Merck Patent GmbH
    Inventors: Mark John Goulding, Kevin Aldem, Warren Duffy, Patricia Eileen Saxton
  • Publication number: 20090137773
    Abstract: Compositions and methods for making compositions such as RF(R?)nQ are provided. The RF group can include at least two —CF3 groups, the R? group can be a group having at least two carbons, n can be at least 1, and the Q group can include one or more atoms of the periodic table of elements. RF-intermediates (RF(RT)nQg); Surfactants (RF(RT)nQs); Foam stabilizers (RF(RT)IIQFS); Metal complexes (RF(RT)IIQMC); Phosphate ester (RF(RT)HQPE); Polymers (RF(RT)IIQMU); Monomers (RF(RT)IIQM); Urethanes (RF(R?)nQu); and/or Glycols (RF(RT)IIQH) and methods for making the same are provided.
    Type: Application
    Filed: July 28, 2006
    Publication date: May 28, 2009
    Inventors: Andrew Jackson, Vimal Sharma, Bradley E. Edwards, Janet Boggs, Victoria Hedrick, Stephan Brandstadter, John Chien, Edward Norman, Robert Kaufman, Bruno Ameduri, George K. Kostov
  • Patent number: 7524998
    Abstract: A dendron (2) comprising a focal point (4) and a plurality of fluorinated end groups (9) is disclosed, including one having a thiol, a silane, a carboxylic acid, a phosphonate or another moiety at the focal point suitable for chemisorption to a substrate (3). A self-assembled monolayer comprising a plurality of dendrons bonded to a substrate and a device comprising the self-assembled monolayer are also disclosed.
    Type: Grant
    Filed: June 30, 2005
    Date of Patent: April 28, 2009
    Assignees: Seiko Epson Corporation, Cambridge University Technical Service, Ltd.
    Inventors: Hitoshi Fukushima, Satoshi Nebashi, Masaya Ishida, Wilhelm J S Huck, Andrew B Holmes, Christine K Luscombe
  • Patent number: 7524619
    Abstract: A coloring matter absorbing a near-infrared ray which comprises a diimonium salt containing a sulfonimide as an anion moiety, represented by the general formula (1): wherein R may be the same or different and represents a moiety selected from the group consisting of an alkyl group, a halogenated alkyl group, a cyanoalkyl group, an aryl group, a hydroxyl group, a phenyl group, and a phenylalkylene group, and R1 and R2 may be the same or different and each represent a fluoroalkyl group, or together form a fluoroalkylene group. The coloring matter absorbing a near-infrared ray is excellent in the resistance to heat and moisture, and thus exhibits an ability of absorbing a near-infrared ray not lowering for a long period of time.
    Type: Grant
    Filed: November 18, 2003
    Date of Patent: April 28, 2009
    Assignee: Japan Carlit Co., Ltd.
    Inventors: Susumu Yamanobe, Masaaki Tamura, Yoji Yamaguchi, Hideo Yamamoto
  • Publication number: 20090103041
    Abstract: A compound represented by the following general formula (I). (In the formula, R1 is hydrogen or C1-8 alkyl; ring A is 1,4-phenylene, 1,4-trans-cyclohexylene, or 2,6-naphthylene; Z1 and Z2 each are —COO—, —OCO—, —CH2O—, —OCH2—, —CH2CH2—, —CH|CH—, —C?C—, or a single bond; m is 1 or 2; n is 0 or 1; X1 and X2 each are C1-3 alkyl or alkoxy or hydrogen, provided that when one of X1 and X2 is hydrogen, the other must not be hydrogen; Y1 and Y2 each are hydrogen, fluorine, or chlorine; Q is C1-8 saturated or unsaturated alkyl in which all or part of the hydrogen atoms are replaced by a halogen atom; and L is oxygen atom or a single bond.
    Type: Application
    Filed: March 14, 2006
    Publication date: April 23, 2009
    Applicant: ADEKA CORPORATION
    Inventors: Masatomi Irisawa, Tomohisa Miura, Hirokatsu Shinano
  • Patent number: 7498468
    Abstract: 4-Aminopicolinic acids having tri- and tetra-substituted aryl substituents in the 6-position, and their amine and acid derivatives, are potent herbicides demonstrating a broad spectrum of weed control.
    Type: Grant
    Filed: October 4, 2007
    Date of Patent: March 3, 2009
    Assignee: Dow AgroSciences LLC
    Inventors: Terry W. Balko, John F. Daeuble, Thomas L. Siddall
  • Patent number: 7462750
    Abstract: Fluorinated paracyclophane compounds represented by the formula where least one of R1 and R2 comprises a fluorinated moiety is disclosed. These compounds can be utilized as precursor dimer compounds to produce polymeric coatings comprising copolymers of trifluorinated paraxylylene.
    Type: Grant
    Filed: October 31, 2005
    Date of Patent: December 9, 2008
    Assignee: Specialty Coating Systems, Inc.
    Inventors: Phillip Hanefeld, Sven Horst, Markus Meise, Michael Bognitzki, Andreas Greiner, Rakesh Kumar
  • Publication number: 20080182986
    Abstract: The present invention relates to an improved process for preparing ring-fluorinated aromatics of the general formula (I) by a halogen exchange reaction (halex reaction) of a plurality of halogen substituents in one stage in the presence of a catalyst.
    Type: Application
    Filed: March 11, 2008
    Publication date: July 31, 2008
    Inventors: Axel Pleschke, Albrecht Marhold
  • Patent number: 7385067
    Abstract: The invention relates to a process for the preparation of compounds containing at least one —CF2—O— bridge in the molecule, in which a) an acid is added onto at least one ketene dithioketal, b) the resultant bis(alkylthio)carbenium salt is reacted with at least one compound having at least one hydroxyl group in the presence of a base, c) and subsequently, preferably in situ, the resultant dithioorthoester is subjected to oxidative fluorodesulfurisation using a fluorinating agent and an oxidant to give the compound containing at least one —CF2—O— bridge in the molecule.
    Type: Grant
    Filed: June 2, 2006
    Date of Patent: June 10, 2008
    Assignee: Merck Patent GmbH
    Inventors: Peer Kirsch, Andreas Taugerbeck, Alexander Hahn
  • Patent number: 7335803
    Abstract: Methods and compositions for the treatment of pain and intraocular pressure. Particularly disclosed are new compositions for the treatment of chronic pain, glaucoma and methods for their use.
    Type: Grant
    Filed: October 19, 2001
    Date of Patent: February 26, 2008
    Assignee: Allergan, Inc.
    Inventors: Ken Chow, Daniel W. Gil, Wenkui Ken Fang, Michael E. Garst, Larry A. Wheeler
  • Patent number: 7318950
    Abstract: The invention relates to chiral compounds of formula (I) R1—X1-(A1-Z1)m-G-(Z2-A2)n-X2—R2, wherein R1, R2, X1, X2, A1, A2, Z1, Z2, G, m and n have the meaning given in claim 1, to liquid crystalline mixtures comprising at least one chiral compound of formula (I), to chiral linear or crosslinked liquid crystalline polymers obtainable by polymerizing a polymerizable mixture comprising at least one chiral compound of formula (I), to the use of chiral compounds of formula (I) and mixtures and polymers obtained thereof in liquid crystal displays, active and passive optical elements, adhesives, synthetic resins with anisotropic mechanical properties, cosmetic and pharmaceutical compositions, diagnostics, liquid crystal pigments, for decorative and security applications, nonlinear optics, optical information storage or as chiral dopants, and to a liquid crystal display comprising a mixture comprising at least one chiral compound of formula (I).
    Type: Grant
    Filed: June 25, 2001
    Date of Patent: January 15, 2008
    Assignee: Merck GmbH
    Inventors: Peer Kirsch, Andreas Tangerbeck, Detlef Pauluth, Joachim Krause, Michael Heckmeier, Kazuaki Tarumi
  • Publication number: 20070257603
    Abstract: A novel fluorene compound is provided which has at least one fluorene group represented by the following general formula [III] or [IV]:
    Type: Application
    Filed: January 29, 2007
    Publication date: November 8, 2007
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Koichi Suzuki, Kazunori Ueno, Hiroshi Tanabe, Satoru Shiobara
  • Patent number: 7291474
    Abstract: Disclosed are compounds of the general formulas: wherein Y is a moiety capable of being cleaved by a hydrolytic enzyme; L is a detectable label; X is a linking group; Z is a halogen; and R is hydrogen, an alkyl, or a halogen. Compounds of this general formula can be used as substrates in an analyte-dependent enzyme activation system, such as that employed in connection with catalyzed reporter depositions. Also disclosed are assays using the compounds, and kits for carrying out the assays.
    Type: Grant
    Filed: June 10, 2004
    Date of Patent: November 6, 2007
    Assignee: PerkinElmer LAS, Inc.
    Inventor: Mark N. Bobrow
  • Patent number: 7270856
    Abstract: The invention relates to novel cyclobutane derivatives of the formula (I), in which R1, R2, A, Z, m, n and o have the meaning indicated in claim 1, to the use thereof as components of liquid-crystalline media, and to liquid-crystal and electro-optical display elements which contain the liquid-crystalline media according to the invention
    Type: Grant
    Filed: November 5, 2003
    Date of Patent: September 18, 2007
    Assignee: Merck Patent GmbH
    Inventors: Andreas Taugerbeck, Michael Heckmeier, Peer Kirsch, Georg Luessem, Eike Poetsch
  • Patent number: 7268248
    Abstract: The present invention relates to 3-cyano-2,4,5-trifluorobenzoyl fluoride and to intermediates for its preparation and to the process for the preparation of 3-cyano-2,4,5-trifluoro-benzoyl fluoride, which starts from 5-fluoro-1,3-xylene (VIII); which is bichlorinated in the ring in the presence of a catalyst under ionic conditions to give 2,4-dichloro-5-fluoro-1,3-dimethylbenzene (VII). The latter is chlorinated in the side chains under free-radical conditions to give 2,4-dichloro-5-fluoro-3-dichloromethyl-1-trichloromethylbenzene (VI).
    Type: Grant
    Filed: December 31, 2003
    Date of Patent: September 11, 2007
    Assignee: Bayer Aktiengesellschaft
    Inventors: Albrecht Marhold, Peter Wolfrum
  • Patent number: 7220784
    Abstract: The present invention relates to stilbene and quinone compounds related to combretastatin A-4 and their use as anticancer compounds and prodrugs. The compounds include those with an alkyl group on the double bond of cis or trans-stilbenes, compounds with one or more (and preferably 2 or 3) alkyl group substituents on the stilbene A ring, compounds with an alkoxy group other than methoxy at position 3, 4, and/or 5 of the stilbene A ring, compounds (or prodrugs) in which BOC amino acid esters are formed with the phenolic hydroxyl at the 3-position of the B ring and compounds (or prodrugs) based on a benzoquinone B ring. The present invention further relates to the photochemical reactions of stilbene compounds, either the above compounds disclosed for the first time herein or compounds based on prior art stilbenes.
    Type: Grant
    Filed: December 20, 2001
    Date of Patent: May 22, 2007
    Inventors: John Anthony Hadfield, Alan Thomson McGown, Stephen Patrick Mayalarp, Edward John Land, Ian Hamblett, Keira Gaukroger, Nicholas James Lawrence, Lucy Annette Hepworth, John Butler
  • Patent number: 7182885
    Abstract: Fluorinated indenes and 1,7-dihydroindacenes of the general formulae (I) and (II) of negative dielectric anisotropy (??<0) in which T, A, R, L, X, Y, U, W, Z, n, m, p and q are as defined herein are suitable for use in liquid crystal display elements.
    Type: Grant
    Filed: April 4, 2003
    Date of Patent: February 27, 2007
    Assignee: Merck Patent GmbH
    Inventors: Lars Lietzau, Melanie Klasen-Memmer, Matthias Bremer
  • Patent number: 7135210
    Abstract: The invention relates to liquid crystal compounds of formula (I), where X1, X2, X3, Z1, Z2, L1, L2, L3, L4, L5, L6, L7, L8, L9, L10, L11 and a have the meanings given in claim 1, and liquid crystal media containing at least one compound of formula (I) and electro-optical displays comprising such a liquid crystal medium
    Type: Grant
    Filed: October 14, 2002
    Date of Patent: November 14, 2006
    Assignee: Merck Patent GmbH
    Inventors: Peer Kirsch, Detlef Pauluth, Andreas Ruhl, Joachim Krause, Kazuaki Tarumi, Michael Heckmeier
  • Patent number: 7125589
    Abstract: A compound represented by the following formula (1), a composition comprising the composition and an element comprising the composition: Ra is alkyl having 1 to 15 carbons and so forth; A1, A2 and A3 are 1,4-cyclohexylene and so forth; Z1, Z2 and Z3 are a single bond and so forth; n and m are 0 or 1; and phenyl having (F)p is phenyl, 2-fluorophenyl and so forth.
    Type: Grant
    Filed: April 9, 2003
    Date of Patent: October 24, 2006
    Assignees: Chisso Corporation, Chisso Petrochemical Corporation
    Inventors: Keiji Kimura, Shuichi Matsui
  • Patent number: 7122228
    Abstract: The invention relates to indanes having negative ?? of the formula Ia or Ib in which R, A, Z, X, Y, V, W, n and m are as defined in claim 1. The compounds are particularly suitable for producing VA-TFT displays.
    Type: Grant
    Filed: July 19, 2002
    Date of Patent: October 17, 2006
    Assignee: Merck Patent GmbH
    Inventors: Volker Reiffenrath, Michael Heckmeier, Matthias Bremer
  • Patent number: 7087272
    Abstract: The invention relates to fluorinated fluorene derivatives of negative DC anisotropy, of the formula I R1—(—A1—Z1—)k1—(—A2—Z2—)k2—W—(—Z3—A3—)k3—(—Z4—A4—)k4—R2I in which W denotes the sub-formula L1 and L2, independently of one another, are H, F, Cl, —CH2F, —CHF2 or —CF3, with the proviso that L1 and L2 are not both H, L3 and L4, independently of one another, are H or F, and R1, R2, A1, A2, A3, A4, Z1, Z2, Z3, Z4, k1, k2, k3 and k4 are as defined above. The invention furthermore relates to liquid-crystalline media and to optical and electro-optical display elements.
    Type: Grant
    Filed: March 7, 2002
    Date of Patent: August 8, 2006
    Assignee: Merck Patent GmbH
    Inventors: Matthias Bremer, Detlef Pauluth, Melanie Klasen-Memmer
  • Patent number: 7083832
    Abstract: The invention provides LC compositions that exhibit V-shaped switching when aligned in an analog device configuration and exhibit bistability when aligned in a bookshelf-type device configuration. The invention more specifically provides LC compositions of formula 1 and particularly chiral nonracemic compounds of formula 1 which exhibit bistable switching as well as V-shaped switching when aligned in appropriate device configurations. The invention also provides methods of using the compounds of the invention in making LC compositions and electooptical devices comprising an aligned layer of the compositions of this invention.
    Type: Grant
    Filed: May 11, 2001
    Date of Patent: August 1, 2006
    Assignee: Displaytech, Inc.
    Inventors: Michael Wand, Neil Gough, Xin Hua Chen
  • Patent number: 7081279
    Abstract: Liquid crystalline compounds having a large negative ?? low viscosity, a large K33/K11 value, a small ??/?? and mutually excellent solubility even at low temperature, compositions containing at least one of the compounds and liquid crystal display devices containing such a liquid crystal compositions are disclosed.
    Type: Grant
    Filed: August 29, 2003
    Date of Patent: July 25, 2006
    Assignee: Chisso Corporation
    Inventors: Takashi Kato, Tomoyuki Kondo, Henry Bernhardt, Shuichi Matsui, Hiroyuki Takeuchi, Yasuhiro Kubo, Fusayuki Takeshita, Etsuo Nakagawa
  • Patent number: 7070838
    Abstract: The present invention provides a compound represented by formula (1) defined in the specification and a liquid crystal composition comprising the compound. The invention further provides a polymer obtained by polymerization of compound or composition above, and further the present invention provides a film, an optical anisotropic material, A ¼ or ½ wavelength functional plate, an optical compensation element, an optical element and a liquid crystal display element employing the polymer.
    Type: Grant
    Filed: June 23, 2004
    Date of Patent: July 4, 2006
    Assignees: Chisso Petrochemical Corporation, Chisso Corporation
    Inventors: Yasuyuki Sasada, Motoki Yanai
  • Patent number: 7033652
    Abstract: Liquid-crystalline media comprising at least one compound of the formula I in which X, L1, L2 and L3 are as defined herein, are useful for use in electro-optical displays.
    Type: Grant
    Filed: November 8, 2002
    Date of Patent: April 25, 2006
    Assignee: Merck Patent GmbH
    Inventors: Michael Heckmeier, Martin Engel, Brigitte Schuler, Volker Reiffenrath
  • Patent number: 7029730
    Abstract: The invention relates to CF2O-bridged cyclohexane derivatives, in particular compounds of formula (I), R1-(-A1-Z1-)k1-Q-CF2O-A2-(-Z3-A3-)K3-R2, wherein Q represents group (a); W1, W2 represent —CH2— and/or —O— independendy from each other, X1, X2, X3, X4 represent H, F, —CH3—CH2F—CH2F and/or —CF3 independently from each other, provided that at least one substituent X1, X2, X3 and/or X4 does not represent H, Z2 represents a simple bond, —CH2—CH2— or —CF2—CF2—, m represents 0 or 1 and R1, R2, A1, A2, A3, Z1, Z3, k1 and k3 have the meaning cited in the description. The invention further relates to liquid crystal substances such as optical and electro-optical display elements.
    Type: Grant
    Filed: May 2, 2002
    Date of Patent: April 18, 2006
    Assignee: Merck Patent GmbH
    Inventors: Peer Kirsch, Andreas Taugerbeck, Detlef Pauluth, Joachim Krause, Kazuaki Tarumi, Georg Lüssem
  • Patent number: 7012165
    Abstract: The subject invention provides methods of fluorinating an aromatic or chloroaromatic compound comprising combining an aromatic compound, a chloroaromatic compound, a mixture of aromatic compounds, a mixture of chloroaromatic compounds, or a mixture of chloroaromatic and aromatic compounds and a fluorinating composition comprising at least one active fluorinating agent selected from the group consisting of CuF2, AgF, HgF2, TeF4, MnF4, FeF3, and CoF2-4 and at least one support selected from the group consisting of activated carbon, ZnF2, CaF2, MgF2, AlF3, and combinations of activated carbon, ZnF2, CaF2, MgF2, or AlF3.
    Type: Grant
    Filed: October 31, 2003
    Date of Patent: March 14, 2006
    Assignee: University of Florida
    Inventors: William R. Dolbier, Jr., Buvaneswari Gopal
  • Patent number: 6992199
    Abstract: The invention concerns a method for sulphonylating a hydroxylated organic compound. The invention concerns in particular aliphatic hydroxylated compounds and more particularly those which comprise on their aliphatic chain, an electroattractive group. The method for sulphonylating a hydroxylated organic compound is characterised in that it consists in reacting said compound, with a sulphonylating agent, in the presence of a sufficient amount of a Lewis acid.
    Type: Grant
    Filed: October 2, 2001
    Date of Patent: January 31, 2006
    Assignee: Rhodia Chimie
    Inventors: Johann Vastra, Laurent Saint-Jalmes
  • Patent number: 6943257
    Abstract: The present invention provides a process for preparing an aromatic bromide or aromatic iodide from an aromatic amine derivative using nitrite anion and halodimethylsulfonium halide generated in situ from hydrobromic acid/DMSO or hydriodic acid/DMSO. The process for producing compounds of the formula (1) is disclosed (1) wherein X is bromine or iodine: Y is carbon or nitrogen; R1, R2, R3, R4 and R5 which may be the same or different and are selected independently from the group consisting of a hydrogen, a hologen, a C1-C8 alkyl, a C1-C10 alkoxy, a nitro, a formyl, an aryl, a benzyl, a C2-C10 alkylcarbonyl and an arylcarbonyl, provided that adjacent groups as selected from R1, R2, R3, R4 and R5 may combine to form a ring.
    Type: Grant
    Filed: September 21, 2001
    Date of Patent: September 13, 2005
    Inventors: Woon Phil Baik, Jung Min Kim, Young Sam Kim, Cheol Hun Yoon, Shin Jong Kim, Seok Woo Lee
  • Patent number: 6916959
    Abstract: The present invention relates to halogen-containing aromatic compounds and methods thereof. The present invention relates a halogen-containing aromatic acid dianhydride, halogen-containing aromatic tetranitrile compound, halogen-containing m-phenylenediamine compound and fluorine compound, and a method thereof.
    Type: Grant
    Filed: April 26, 2002
    Date of Patent: July 12, 2005
    Assignee: Nippon Shokubai Co., Ltd.
    Inventors: Masayoshi Kuwabara, Yasunori Okumura
  • Patent number: 6903230
    Abstract: It is to provide a process for synthesizing an intended fluorine-containing compound having a geminal difluoro structure with a high yield, by subjecting a carbonyl compound which is readily available to a two-stage reaction.
    Type: Grant
    Filed: July 30, 2003
    Date of Patent: June 7, 2005
    Assignee: Asahi Glass Company, Limited
    Inventors: Shuzhong Wang, Kazuhiko Hayashi, Shinsuke Kaga, Kazuya Oharu
  • Patent number: 6890619
    Abstract: Optical systems such as, for example, optical switches, are disclosed comprising a solid component and a refractive index-matching liquid composition interfaced with the solid component. The liquid composition has a refractive-index that is substantially equal to that of the solid component. In one approach the liquid composition is a saturated cyclic compound consisting essentially of carbon and hydrogen and optionally oxygen such as, e.g., cyclic alkanes, alcohols or ketones. In another approach the liquid composition is benzene substituted with one or more electron-donating groups attached directly to the ring and one of more fluoro groups attached to the ring or to the electron-donating groups. In yet another approach the liquid composition is a combination comprising one or more of benzene or substituted benzene and optionally at least one of an alkane or substituted alkane having a boiling point less than about 130° C.
    Type: Grant
    Filed: November 13, 2001
    Date of Patent: May 10, 2005
    Assignee: Agilent Technologies, Inc.
    Inventor: Mark Troll
  • Patent number: 6844032
    Abstract: The compound (1) having 2,3-bis(trifluoromethyl)-1,4-phenylene is stable chemically and has excellent miscibility with other liquid crystal compounds, large and negative dielectric anisotropy and proper optical anisotropy. A liquid crystal composition comprising the compound has large specific resistance and a large voltage holding ratio, and that the composition is useful for a liquid crystal display element.
    Type: Grant
    Filed: March 29, 2002
    Date of Patent: January 18, 2005
    Assignees: Chisso Corporation, Chisso Petrochemical Corporation
    Inventors: Kazutoshi Miyazawa, Takashi Kato, Yasuhiro Kubo, Kanetsugu Terashima