Benzene Ring Containing Patents (Class 570/127)
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Patent number: 7943567Abstract: 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: GrantFiled: January 28, 2005Date of Patent: May 17, 2011Assignee: E.I. du Pont de Nemours and CompanyInventors: Janet Boggs, Stephan Brandstadter, John Chien, Vimal Sharma, E. Bradley Edwards, Vicki Hedrick, Andrew Jackson, Gregory Leman, Edward Norman, Robert Kaufman
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Patent number: 7939697Abstract: 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: GrantFiled: July 23, 2009Date of Patent: May 10, 2011Assignee: Sumitomo Chemical Company, LimitedInventor: Koji Hagiya
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Patent number: 7879911Abstract: 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: GrantFiled: January 30, 2008Date of Patent: February 1, 2011Inventors: Alan T. Johnson, Guan-Sheng Jiao, Seongjin Kim
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Publication number: 20110009638Abstract: 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: ApplicationFiled: April 8, 2009Publication date: January 13, 2011Applicant: E.I. DU PONT DE NEMOURS AND COMPANYInventor: Gary David Annis
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Patent number: 7846513Abstract: 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: GrantFiled: November 9, 2005Date of Patent: December 7, 2010Assignees: Chisso Corporation, Chisso Petrochemical CorporationInventor: Yasuyuki Sasada
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Patent number: 7838087Abstract: 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: GrantFiled: March 29, 2005Date of Patent: November 23, 2010Assignees: Chisso Corporation, Chisso Petrochemical CorporationInventors: Syuichi Matsui, Yasuyuki Sasada
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Patent number: 7767277Abstract: Disclosed are compounds of formula I processes for the preparation thereof, and liquid-crystalline media and electro-optical displays containing said compounds.Type: GrantFiled: September 12, 2007Date of Patent: August 3, 2010Assignee: Merck Patent Gesellschaft mit beschrankter HaftungInventors: Lars Lietzau, Markus Czanta, Harald Hirschmann, Michael Wittek
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Patent number: 7758931Abstract: 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: GrantFiled: June 29, 2009Date of Patent: July 20, 2010Assignees: Chisso Corporation, Chisso Petrochemical CorporationInventors: Yasuyuki Goto, Teru Shimada, Teruyo Sugiura
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Patent number: 7695777Abstract: 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 theType: GrantFiled: September 5, 2007Date of Patent: April 13, 2010Assignees: Chisson Corporation, Chisso Petrochemical CorporationInventors: Yasuyuki Goto, Teru Shimada, Hiroaki Fujita, Norikatsu Hattori
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Patent number: 7652178Abstract: 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: GrantFiled: February 26, 2007Date of Patent: January 26, 2010Assignee: Specialty Coating Systems, Inc.Inventors: William R. Dolbier, Jr., Puhui Xie, Rakesh Kumar
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Publication number: 20100016607Abstract: 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: ApplicationFiled: December 11, 2007Publication date: January 21, 2010Applicant: University of Florida Research Foundation Inc.Inventors: William R. Dolbier, JR., Krishna Murthy Janmanchi
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Publication number: 20090287025Abstract: 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: ApplicationFiled: July 23, 2009Publication date: November 19, 2009Inventor: Koji Hagiya
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Patent number: 7612243Abstract: 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: GrantFiled: October 31, 2007Date of Patent: November 3, 2009Assignee: Merck Patent GmbHInventors: Lars Lietzau, Matthias Bremer, Melanie Klasen-Memmer, Michael Heckmeier
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Publication number: 20090264683Abstract: 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: ApplicationFiled: June 29, 2009Publication date: October 22, 2009Applicants: CHISSO CORPORATION, CHISSO PETROCHEMICAL CORPORATIONInventors: YASUYUKI GOTO, Teru Shimada, Teruyo Sugiura
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Patent number: 7597959Abstract: 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: GrantFiled: December 19, 2006Date of Patent: October 6, 2009Assignee: Bridgestone CorporationInventors: Xiaorong Wang, Christine Rademacher
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Patent number: 7569258Abstract: 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: GrantFiled: March 3, 2006Date of Patent: August 4, 2009Assignees: Chisso Corporation, Chisso Petrochemical CorporationInventors: Yasuyuki Goto, Teru Shimada, Teruyo Sugiura
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Publication number: 20090171130Abstract: 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: ApplicationFiled: July 29, 2008Publication date: July 2, 2009Applicants: 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
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Patent number: 7544400Abstract: 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: GrantFiled: November 28, 2005Date of Patent: June 9, 2009Assignee: Merck Patent GmbHInventors: Mark John Goulding, Kevin Aldem, Warren Duffy, Patricia Eileen Saxton
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Publication number: 20090137773Abstract: 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: ApplicationFiled: July 28, 2006Publication date: May 28, 2009Inventors: Andrew Jackson, Vimal Sharma, Bradley E. Edwards, Janet Boggs, Victoria Hedrick, Stephan Brandstadter, John Chien, Edward Norman, Robert Kaufman, Bruno Ameduri, George K. Kostov
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Patent number: 7524998Abstract: 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: GrantFiled: June 30, 2005Date of Patent: April 28, 2009Assignees: 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
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Patent number: 7524619Abstract: 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: GrantFiled: November 18, 2003Date of Patent: April 28, 2009Assignee: Japan Carlit Co., Ltd.Inventors: Susumu Yamanobe, Masaaki Tamura, Yoji Yamaguchi, Hideo Yamamoto
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Publication number: 20090103041Abstract: 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: ApplicationFiled: March 14, 2006Publication date: April 23, 2009Applicant: ADEKA CORPORATIONInventors: Masatomi Irisawa, Tomohisa Miura, Hirokatsu Shinano
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Patent number: 7498468Abstract: 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: GrantFiled: October 4, 2007Date of Patent: March 3, 2009Assignee: Dow AgroSciences LLCInventors: Terry W. Balko, John F. Daeuble, Thomas L. Siddall
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Patent number: 7462750Abstract: 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: GrantFiled: October 31, 2005Date of Patent: December 9, 2008Assignee: Specialty Coating Systems, Inc.Inventors: Phillip Hanefeld, Sven Horst, Markus Meise, Michael Bognitzki, Andreas Greiner, Rakesh Kumar
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Publication number: 20080182986Abstract: 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: ApplicationFiled: March 11, 2008Publication date: July 31, 2008Inventors: Axel Pleschke, Albrecht Marhold
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Patent number: 7385067Abstract: 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: GrantFiled: June 2, 2006Date of Patent: June 10, 2008Assignee: Merck Patent GmbHInventors: Peer Kirsch, Andreas Taugerbeck, Alexander Hahn
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Patent number: 7335803Abstract: 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: GrantFiled: October 19, 2001Date of Patent: February 26, 2008Assignee: Allergan, Inc.Inventors: Ken Chow, Daniel W. Gil, Wenkui Ken Fang, Michael E. Garst, Larry A. Wheeler
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Patent number: 7318950Abstract: 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: GrantFiled: June 25, 2001Date of Patent: January 15, 2008Assignee: Merck GmbHInventors: Peer Kirsch, Andreas Tangerbeck, Detlef Pauluth, Joachim Krause, Michael Heckmeier, Kazuaki Tarumi
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Publication number: 20070257603Abstract: A novel fluorene compound is provided which has at least one fluorene group represented by the following general formula [III] or [IV]:Type: ApplicationFiled: January 29, 2007Publication date: November 8, 2007Applicant: CANON KABUSHIKI KAISHAInventors: Koichi Suzuki, Kazunori Ueno, Hiroshi Tanabe, Satoru Shiobara
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Patent number: 7291474Abstract: 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: GrantFiled: June 10, 2004Date of Patent: November 6, 2007Assignee: PerkinElmer LAS, Inc.Inventor: Mark N. Bobrow
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Patent number: 7270856Abstract: 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 inventionType: GrantFiled: November 5, 2003Date of Patent: September 18, 2007Assignee: Merck Patent GmbHInventors: Andreas Taugerbeck, Michael Heckmeier, Peer Kirsch, Georg Luessem, Eike Poetsch
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Patent number: 7268248Abstract: 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: GrantFiled: December 31, 2003Date of Patent: September 11, 2007Assignee: Bayer AktiengesellschaftInventors: Albrecht Marhold, Peter Wolfrum
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Patent number: 7220784Abstract: 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: GrantFiled: December 20, 2001Date of Patent: May 22, 2007Inventors: John Anthony Hadfield, Alan Thomson McGown, Stephen Patrick Mayalarp, Edward John Land, Ian Hamblett, Keira Gaukroger, Nicholas James Lawrence, Lucy Annette Hepworth, John Butler
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Patent number: 7182885Abstract: 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: GrantFiled: April 4, 2003Date of Patent: February 27, 2007Assignee: Merck Patent GmbHInventors: Lars Lietzau, Melanie Klasen-Memmer, Matthias Bremer
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Patent number: 7135210Abstract: 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 mediumType: GrantFiled: October 14, 2002Date of Patent: November 14, 2006Assignee: Merck Patent GmbHInventors: Peer Kirsch, Detlef Pauluth, Andreas Ruhl, Joachim Krause, Kazuaki Tarumi, Michael Heckmeier
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Patent number: 7125589Abstract: 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: GrantFiled: April 9, 2003Date of Patent: October 24, 2006Assignees: Chisso Corporation, Chisso Petrochemical CorporationInventors: Keiji Kimura, Shuichi Matsui
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Patent number: 7122228Abstract: 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: GrantFiled: July 19, 2002Date of Patent: October 17, 2006Assignee: Merck Patent GmbHInventors: Volker Reiffenrath, Michael Heckmeier, Matthias Bremer
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Patent number: 7087272Abstract: 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: GrantFiled: March 7, 2002Date of Patent: August 8, 2006Assignee: Merck Patent GmbHInventors: Matthias Bremer, Detlef Pauluth, Melanie Klasen-Memmer
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Patent number: 7083832Abstract: 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: GrantFiled: May 11, 2001Date of Patent: August 1, 2006Assignee: Displaytech, Inc.Inventors: Michael Wand, Neil Gough, Xin Hua Chen
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Patent number: 7081279Abstract: 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: GrantFiled: August 29, 2003Date of Patent: July 25, 2006Assignee: Chisso CorporationInventors: Takashi Kato, Tomoyuki Kondo, Henry Bernhardt, Shuichi Matsui, Hiroyuki Takeuchi, Yasuhiro Kubo, Fusayuki Takeshita, Etsuo Nakagawa
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Patent number: 7070838Abstract: 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: GrantFiled: June 23, 2004Date of Patent: July 4, 2006Assignees: Chisso Petrochemical Corporation, Chisso CorporationInventors: Yasuyuki Sasada, Motoki Yanai
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Patent number: 7033652Abstract: 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: GrantFiled: November 8, 2002Date of Patent: April 25, 2006Assignee: Merck Patent GmbHInventors: Michael Heckmeier, Martin Engel, Brigitte Schuler, Volker Reiffenrath
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Patent number: 7029730Abstract: 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: GrantFiled: May 2, 2002Date of Patent: April 18, 2006Assignee: Merck Patent GmbHInventors: Peer Kirsch, Andreas Taugerbeck, Detlef Pauluth, Joachim Krause, Kazuaki Tarumi, Georg Lüssem
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Patent number: 7012165Abstract: 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: GrantFiled: October 31, 2003Date of Patent: March 14, 2006Assignee: University of FloridaInventors: William R. Dolbier, Jr., Buvaneswari Gopal
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Patent number: 6992199Abstract: 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: GrantFiled: October 2, 2001Date of Patent: January 31, 2006Assignee: Rhodia ChimieInventors: Johann Vastra, Laurent Saint-Jalmes
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Patent number: 6943257Abstract: 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: GrantFiled: September 21, 2001Date of Patent: September 13, 2005Inventors: Woon Phil Baik, Jung Min Kim, Young Sam Kim, Cheol Hun Yoon, Shin Jong Kim, Seok Woo Lee
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Patent number: 6916959Abstract: 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: GrantFiled: April 26, 2002Date of Patent: July 12, 2005Assignee: Nippon Shokubai Co., Ltd.Inventors: Masayoshi Kuwabara, Yasunori Okumura
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Patent number: 6903230Abstract: 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: GrantFiled: July 30, 2003Date of Patent: June 7, 2005Assignee: Asahi Glass Company, LimitedInventors: Shuzhong Wang, Kazuhiko Hayashi, Shinsuke Kaga, Kazuya Oharu
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Patent number: 6890619Abstract: 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: GrantFiled: November 13, 2001Date of Patent: May 10, 2005Assignee: Agilent Technologies, Inc.Inventor: Mark Troll
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Patent number: 6844032Abstract: 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: GrantFiled: March 29, 2002Date of Patent: January 18, 2005Assignees: Chisso Corporation, Chisso Petrochemical CorporationInventors: Kazutoshi Miyazawa, Takashi Kato, Yasuhiro Kubo, Kanetsugu Terashima