Halogen Containing Patents (Class 568/647)
  • Patent number: 8999197
    Abstract: The invention provides a liquid crystal compound that has an excellent compatibility with other liquid crystal compounds and also has at least one of characteristics such as a high stability to heat, light or the like, a suitable refractive index anisotropy (?n), a low threshold voltage and a suitable dielectric anisotropy (??). A compound represented by formula (1) For example, R1 is alkyl having 1 to 10 carbons, R2 is halogen or alkenyl having 2 to 10 carbons; the ring A1, the ring A2 and the ring A3 are 1,4-cyclohexylene or 1,4-phenylene; Z1, Z2 and Z3 are a single bond or alkylene having 1 to 4 carbons; G is —CH2— or —O—; and m is 1, and n and p is 0 or 1.
    Type: Grant
    Filed: October 24, 2013
    Date of Patent: April 7, 2015
    Assignees: JNC Corporation, JNC Petrochemical Corporation
    Inventors: Tokifumi Masukawa, Yasuyuki Goto, Tomohiro Yano
  • Patent number: 8956552
    Abstract: To provide a compound, when the compound has both a high clearing point and a low crystallization temperature, having a wide temperature range of a liquid crystal phase and also an excellent solubility in other liquid crystal compounds, and further having general physical properties necessary for the compound, namely, stability to heat, light and so forth, a suitable optical anisotropy and a suitable dielectric anisotropy. A compound is represented by formula (1): wherein, for example, Ra and Rb are alkyl having 1 to 10 carbons; A1, A2, A3 and A4 are 1,4-phenylene; Z1, Z2, Z3 and Z4 are a single bond or alkylene having 1 to 4 carbons; and m, n, q and r are independently 0, 1, or 2, and a sum of m, n, q and r is 1, 2, 3 or 4.
    Type: Grant
    Filed: June 17, 2013
    Date of Patent: February 17, 2015
    Assignees: JNC Corporation, JNC Petrochemical Corporation
    Inventor: Yasuyuki Sasada
  • Publication number: 20150038574
    Abstract: Compounds and compositions are disclosed that are useful for treating ophthalmic conditions caused by or related to production of toxic visual cycle products that accumulate in the eye, such as dry adult macular degeneration, as well as conditions caused by or related to the misfolding of mutant opsin proteins and/or the mis-localization of opsin proteins. Compositions of these compounds alone or in combination with other therapeutic agents are also described, along with therapeutic methods of using such compounds and/or compositions. Methods of synthesizing such agents are also disclosed.
    Type: Application
    Filed: November 29, 2012
    Publication date: February 5, 2015
    Applicant: Bikam Pharmaceuticals, Inc.
    Inventors: David S. Garvey, Judd Berman, Tan Quach
  • Publication number: 20150021520
    Abstract: Disclosed is a liquid crystal compound. The compound has a general structural formula as shown by formula I. Such a compound has good thermal and UV stability, large positive dielectric anisotropy ??, and can achieve a low threshold voltage when used in optics, thereby having great significance to the fast response of display devices, and therefore being very suitable for formulating a liquid crystal mixture. A liquid crystal mixture containing such a liquid crystal unit can be applied to various display devices, and is especially suitable for TN-TFT and STN display devices, but can also be used in IPS (in-plane switching) and VA (vertically aligned) display devices.
    Type: Application
    Filed: November 21, 2012
    Publication date: January 22, 2015
    Applicant: Shijiazhuang Chengzhi Yonghua Display Materials Co., Ltd.
    Inventors: Guoliang Yun, Gang Wen, Zhian Liang, Ruimao Hua, Kui Wang, Xing Zhang, Zhiguo Xia, Yaohua Han
  • Publication number: 20150004110
    Abstract: The 1-aryl-2-aryloxyethane compounds of Formula 1 in which n and m are zero or equal to 1, provided that n+m=1, R1 and R2 in particular representing hydrogen atoms, R3 and R4 in particular representing hydrogen atoms, halogen atoms, hydroxy or alkoxy groups, and R5 in particular representing hydrogen atoms, hydroxy, alkyl, alkoxy, amino or nitro groups, in cosmetic compositions intended for anti-ageing and/or depigmenting and/or anti-inflammatory and/or wound-healing care.
    Type: Application
    Filed: December 18, 2012
    Publication date: January 1, 2015
    Applicant: DIVERCHIM
    Inventors: Natacha Frison, Benoit Folleas, Jean-Louis Brayer, Florence Wafflart
  • Patent number: 8916063
    Abstract: A liquid crystal composition and an AM liquid crystal display device are described. The liquid crystal composition has a negative dielectric anisotropy, contains a specific compound having a large negative dielectric anisotropy as a first component and a two-ring compound having a small viscosity as a second component, and may further contain a specific compound having a large negative dielectric anisotropy as a third component, a specific compound having a small viscosity as a fourth component and a specific compound having a large negative dielectric anisotropy as a fifth component. The AM liquid crystal display device includes the liquid crystal composition.
    Type: Grant
    Filed: February 8, 2013
    Date of Patent: December 23, 2014
    Assignees: JNC Corporation, JNC Petrochemical Corporation
    Inventors: Yasuyuki Goto, Kazuhiko Saigusa, Norikatsu Hattori
  • Patent number: 8846164
    Abstract: A liquid crystal compound is described, which has stability to heat, light and so forth, keeps a nematic phase in a wide temperature range, has a small viscosity, a suitable optical anisotropy and a suitable elastic constant K33, and further has a large negative dielectric anisotropy and an excellent compatibility with other liquid crystal compounds. The liquid crystal compound is represented by formula (1): wherein, for example, R1 is alkyl having 1 to 10 carbons, R2 is alkoxy having 1 to 10 carbons; ring A1, ring A2 and ring A5 are 1,4-cyclohexylene, 1,4-phenylene, or 1,4-phenylene in which arbitrary hydrogen is replaced by fluorine; Z1 and Z4 are a single bond, —CH2CH2— or —CH?CH—; a, b and e are 0 or 1, and c and d is 0; X1, X2 and X4 are hydrogen, and X3 is fluorine; and L1 and L2 are fluorine.
    Type: Grant
    Filed: July 27, 2011
    Date of Patent: September 30, 2014
    Assignees: JNC Corporation, JNC Petrochemical Corporation
    Inventors: Takahiro Kubo, Hiroyuki Tanaka
  • Publication number: 20140275577
    Abstract: The present invention relates to a compound having a 2-fluorophenyloxymethane structure and useful for organic electronic materials and medical and agricultural chemicals, particularly materials for liquid crystal display elements. A problem to be solved by the invention is to provide a compound having relatively large ??, relatively high T?i, low viscosity (?), and high miscibility with other liquid crystal compounds, and also provide a liquid crystal composition containing the compound as a constituent component. The present invention provides a compound having a 2-fluorophenyloxymethane structure and also provides a liquid crystal composition containing the compound and a liquid crystal display device using the liquid crystal composition.
    Type: Application
    Filed: May 22, 2012
    Publication date: September 18, 2014
    Applicant: DIC CORPORATION
    Inventors: Kenta Tojo, Kiyofumi Takeuchi, Masashi Osawa, Masakazu Kaneoya, Tetsuo Kusumoto
  • Publication number: 20140166931
    Abstract: A liquid crystal composition and an AM liquid crystal display device are described. The liquid crystal composition has a negative dielectric anisotropy, contains a specific compound having a large negative dielectric anisotropy as a first component and a two-ring compound having a small viscosity as a second component, and may further contain a specific compound having a large negative dielectric anisotropy as a third component, a specific compound having a small viscosity as a fourth component and a specific compound having a large negative dielectric anisotropy as a fifth component. The AM liquid crystal display device includes the liquid crystal composition.
    Type: Application
    Filed: February 8, 2013
    Publication date: June 19, 2014
    Applicants: JNC PETROCHEMICAL CORPORATION, JNC CORPORATION
    Inventors: Yasuyuki Goto, Kazuhiko Saigusa, Norikatsu Hattori
  • Publication number: 20140145113
    Abstract: A liquid crystal compound having high stability to heat, light and so forth, a high clearing point, a low minimum temperature of a liquid crystal phase, small viscosity, suitable optical anisotropy, large dielectric anisotropy, a suitable elastic constant and excellent compatibility with other liquid crystal compounds, a liquid crystal composition containing the compound, and a liquid crystal display device including the composition. The compound is represented by formula (1-1): wherein, for example, R1 is hydrogen, halogen or alkyl having 1 to 20 carbons; ring A1, ring A2, ring A3, ring A4 and ring A5 are independently 1,4-cyclohexylene or 1,4-phenylene; Z1, Z2, Z3 and Z4 are independently a single bond, —(CH2)2—, —CH?CH— or —CF?CF—: and a, b, c and d are independently 0 or 1, and a sum of a, b, c and d is one or more.
    Type: Application
    Filed: November 26, 2013
    Publication date: May 29, 2014
    Applicants: JNC PETROCHEMICAL CORPORATION, JNC CORPORATION
    Inventors: Tomohiro YANO, Junichi YAMASHITA
  • Publication number: 20140138582
    Abstract: A liquid crystal compound having high stability to heat, light and so forth, a high clearing point, a low minimum temperature of a liquid crystal phase, small viscosity, suitable optical anisotropy, large negative dielectric anisotropy, a suitable elastic constant and excellent compatibility with other liquid crystal compounds, a liquid crystal composition containing the compound, and a liquid crystal display device including the composition. The compound is represented by formula (1-1): wherein, for example, R1 is alkyl having 1 to 10 carbons, alkoxy having 1 to 9 carbons or alkenyl having 2 to 10 carbons; R2 is alkyl having 1 to 10 carbons, alkoxy having 1 to 9 carbons or alkenyl having 3 to 10 carbons; ring A1 is 1,4-cyclohexylene or 1,4-phenylene; ring A2 is 1,4-cyclohexylene, 1,4-phenylene or 2,3-difluoro-1,4-phenylene; Z1 and Z2 are single bonds; L1 and L2 are fluorine; and 1 is 0, 1 or 2.
    Type: Application
    Filed: November 15, 2013
    Publication date: May 22, 2014
    Applicants: JNC PETROCHEMICAL CORPORATION, JNC CORPORATION
    Inventors: Yasuyuki GOTOH, Masahide KOBAYASHI
  • Patent number: 8685274
    Abstract: The invention provides a liquid crystal compound that has an excellent compatibility with other liquid crystal compounds and also has at least one of characteristics such as a high stability to heat, light or the like, a suitable refractive index anisotropy (?n), a low threshold voltage and a suitable dielectric anisotropy (??). A compound represented by formula (1). For example, R1 is alkyl having 1 to 10 carbons, R2 is halogen or alkenyl having 2 to 10 carbons; the ring A1, the ring A2 and the ring A3 are 1,4-cyclohexylene or 1,4-phenylene; Z1, Z2 and Z3 are a single bond or alkylene having 1 to 4 carbons; G is —CH2— or —O—; and m is 1, and n and p is 0 or 1.
    Type: Grant
    Filed: June 10, 2011
    Date of Patent: April 1, 2014
    Assignees: JNC Corporation, JNC Petrochemical Corporation
    Inventors: Tokifumi Masukawa, Yasuyuki Goto, Tomohiro Yano
  • Patent number: 8680341
    Abstract: An arylalkenyl ether oligomer is produced by the reaction of a polyhaloalkene with a polyhydroxyaryl compound. Halogenation of the resultant oligomer produces a flame retardant having both aromatic and aliphatic bromine groups.
    Type: Grant
    Filed: June 14, 2010
    Date of Patent: March 25, 2014
    Assignee: Chemtura Corporation
    Inventors: Frank Liu, Kenneth Bol, Mark V. Hanson, Larry Timberlake
  • Publication number: 20140054499
    Abstract: The invention provides a liquid crystal compound that has an excellent compatibility with other liquid crystal compounds and also has at least one of characteristics such as a high stability to heat, light or the like, a suitable refractive index anisotropy (?n), a low threshold voltage and a suitable dielectric anisotropy (??). A compound represented by formula (1). For example, R1 is alkyl having 1 to 10 carbons, R2 is halogen or alkenyl having 2 to 10 carbons; the ring A1, the ring A2 and the ring A3 are 1,4-cyclohexylene or 1,4-phenylene; Z1, Z2 and Z3 are a single bond or alkylene having 1 to 4 carbons; G is —CH2— or —O—; and m is 1, and n and p is 0 or 1.
    Type: Application
    Filed: October 24, 2013
    Publication date: February 27, 2014
    Applicants: JNC PETROCHEMICAL CORPORATION, JNC CORPORATION
    Inventors: Tokifumi MASUKAWA, Yasuyuki GOTO, Tomohiro YANO
  • Publication number: 20140018538
    Abstract: The present invention provides novel high-valent palladium complexes. The complexes typically include multi-dentate ligands that stabilize the octahedral coordination sphere of the palladium(IV) atom. These complexes are useful in fluorinating organic compounds and preparing high-valent palladium fluoride complexes. The invention is particularly useful for fluorinating compounds with 19F for PET imaging.
    Type: Application
    Filed: August 19, 2011
    Publication date: January 16, 2014
    Applicant: PRESIDENT AND FELLOWS OF HARVARD COLLEGE
    Inventors: Eunsung Lee, Adam Seth Kamlet, David C. Powers, Takeru Furuya, Tobias Ritter
  • Publication number: 20130337196
    Abstract: The present invention discloses a liquid crystal (LC) molecule having a five-membered ring structure and a mixture thereof. A traditional LC molecule is modified into the LC molecule having the five-membered ring structure. The rotational viscosity of the LC molecule within an LC panel is decreased by properties of the five-membered ring structure, so that the LC molecule having the five-membered ring structure has a fast off-time than that of the traditional LC molecule. The present invention can decrease the rotational viscosity of the LC molecule within the LC panel by modification of the five-membered ring structure of the LC molecule, and thus the problem of cross-talk effect produced from switching a two-dimensional mode to a three-dimensional mode in an LC display can be improved.
    Type: Application
    Filed: July 2, 2012
    Publication date: December 19, 2013
    Applicant: Shenzhen China Star Optopelectronics Technology Co., Ltd.
    Inventor: Chung-Ching Hsieh
  • Publication number: 20130324718
    Abstract: This invention relates to processes and reagents for making diaryliodonium salts, which are useful for the preparation of fluorinated and radiofluorinated aromatic compounds.
    Type: Application
    Filed: May 30, 2013
    Publication date: December 5, 2013
    Inventor: Stephen DiMagno
  • Patent number: 8580146
    Abstract: A liquid crystal compound having a high stability to heat, light or the like, a wide temperature range of a nematic phase, a small viscosity, a suitable optical anisotropy, a large elastic constant K33, a large negative dielectric anisotropy and an excellent compatibility with other liquid crystal compounds. Also, a liquid crystal composition having characteristics similar to these of the compound. Additionally, a liquid crystal display device having a short response time, low electric power consumption, a low driving voltage, a large contrast and a wide temperature range in which the device can be used. The compound is a 2,3-difluorobenzene derivative (1) having a combination of a cyclohexane ring, a cyclohexene ring or a benzene ring phenyl and a butene bonding group. The liquid crystal composition includes this compound, and the liquid crystal display device contains this composition.
    Type: Grant
    Filed: January 27, 2012
    Date of Patent: November 12, 2013
    Assignees: JNC Corporation, JNC Petrochemical Corporation
    Inventor: Masahide Kobayashi
  • Patent number: 8580142
    Abstract: The invention provides a liquid crystal compound having stability to heat, light and so forth, a wide temperature range of a nematic phase, a small viscosity, a suitable optical anisotropy, a suitable elastic constant K33, a suitable and negative dielectric anisotropy, and an excellent compatibility with other liquid crystal compounds. The invention provides a liquid crystal composition containing the compound described above and having stability to heat, light and so forth, a small viscosity, a suitable optical anisotropy, a suitable and negative dielectric anisotropy, a suitable elastic constant K33, a low threshold voltage, a high maximum temperature of a nematic phase, and a low minimum temperature of the nematic phase. The invention also provides a liquid crystal display device having a short response time, a small power consumption, a low driving voltage, and a large contrast, and containing the composition described above which can be used in a large temperature range.
    Type: Grant
    Filed: September 1, 2008
    Date of Patent: November 12, 2013
    Assignees: JNC Corporation, JNC Petrochemical Corporation
    Inventors: Teru Shimada, Masahide Kobayashi
  • Publication number: 20130277612
    Abstract: To provide a compound, when the compound has both a high clearing point and a low crystallization temperature, having a wide temperature range of a liquid crystal phase and also an excellent solubility in other liquid crystal compounds, and further having general physical properties necessary for the compound, namely, stability to heat, light and so forth, a suitable optical anisotropy and a suitable dielectric anisotropy. A compound is represented by formula (1): wherein, for example, Ra and Rb are alkyl having 1 to 10 carbons; A1, A2, A3 and A4 are 1,4-phenylene; Z1, Z2, Z3 and Z4 are a single bond or alkylene having 1 to 4 carbons; and m, n, q and r are independently 0, 1, or 2, and a sum of m, n, q and r is 1, 2, 3 or 4.
    Type: Application
    Filed: June 17, 2013
    Publication date: October 24, 2013
    Applicants: JNC CORPORATION
    Inventor: Yasuyuki SASADA
  • Publication number: 20130270480
    Abstract: To provide a compound, when the compound has both a high clearing point and a low crystallization temperature, having a wide temperature range of a liquid crystal phase and also an excellent solubility in other liquid crystal compounds, and further having general physical properties necessary for the compound, namely, stability to heat, light and so forth, a suitable optical anisotropy and a suitable dielectric anisotropy. A compound is represented by formula (1): wherein, for example, Ra and Rb are alkyl having 1 to 10 carbons; A1, A2, A3 and A4 are 1,4-phenylene; Z1, Z2, Z3 and Z4 are a single bond or alkylene having 1 to 4 carbons; and m, n, q and r are independently 0, 1, or 2, and a sum of m, n, q and r is 1, 2, 3 or 4.
    Type: Application
    Filed: October 13, 2011
    Publication date: October 17, 2013
    Applicants: JNC PETROCHEMICAL CORPORATION, JNC CORPORATION
    Inventor: Yasuyuki Sasada
  • Publication number: 20130208227
    Abstract: The present invention relates to a switch element, which is thermoresponsive and which switches between a less transmissive state for radiant energy and a more transmissive state for radiant energy, and which comprises a liquid-crystalline medium. The invention furthermore relates to the use of the switch element for the regulation of radiant energy flow between interior spaces and the environment and for the regulation of the temperature of interior spaces. The invention furthermore relates to a liquid-crystalline medium, characterised in that it comprises a compound of the formula (I), in particular for use in the switch elements according to the invention.
    Type: Application
    Filed: September 21, 2011
    Publication date: August 15, 2013
    Applicant: Merck Patent GmbH
    Inventor: Michael Junge
  • Publication number: 20130172191
    Abstract: A method to inhibit the ethylene response in plants with cyclopropene compounds by first generating stable cyclopropane precursor compounds and then converting these compounds to the gaseous cyclopropene antagonist compound by use of a reducing or nucleophilic agent.
    Type: Application
    Filed: February 25, 2013
    Publication date: July 4, 2013
    Inventors: Richard Martin Jacobson, Martha Jean Kelly, William Nixon James
  • Publication number: 20130109855
    Abstract: A method for the synthesis of carbon-based structures, particularly graphene substructures and ribbons, from oligo- and poly-alkyne starting materials.
    Type: Application
    Filed: October 24, 2012
    Publication date: May 2, 2013
    Applicant: The Florida State University Research Foundation, Inc.
    Inventor: The Florida State University Research Foundation,
  • Patent number: 8398887
    Abstract: A nematic phase liquid crystal compound with negative dielectric constant has a structure represented by wherein R1 represents a hydrogen atom or linear alkyl having 1 to 8 carbon atoms or linear alkenyl having 1-8 carbon atoms, or an alkoxy or alykenoxy formed by substituting one or nonadjacent two CH2 in the linear alkyl or alkenyl with oxygen atom, wherein 0 to 4 hydrogen atoms of R1 group can be substituted with fluorine; R2 represents a hydrogen atom or linear alkyl having 1 to 8 carbon atoms, or R2 represents a linear fluoroalkyl having 1 to 8 carbon atoms, in which group 1 to 4 hydrogens can be substituted with fluorine atoms; A represents a benzene ring or 1,4-cyclohexane ring, if A is a benzene ring 0 to 4 hydrogen atoms on the benzene ring may be substituted with fluorine; n=1 to 2, and m=0 to 2.
    Type: Grant
    Filed: June 3, 2009
    Date of Patent: March 19, 2013
    Assignee: Yantai Valiant Fine Chemicals Co., Ltd.
    Inventors: Baohua Hu, Hu Yuan, Yinbo Zhou, Xuesong Jiang, Tingting Zhang, Haichao Fu, Xueming Song
  • Patent number: 8357738
    Abstract: A flame retardant blend comprises at least first and second halogenated non-polymeric phenyl ethers having the general formula (I): wherein each X is independently Cl or Br, each m is independently an integer of 1 to 5, each p is independently an integer of 1 to 4, n is an integer of 1 to 5 and wherein the values of n for the first and second ethers are different.
    Type: Grant
    Filed: November 24, 2009
    Date of Patent: January 22, 2013
    Assignee: Chemtura Corporation
    Inventors: Larry D. Timberlake, James D. Siebecker
  • Publication number: 20120326085
    Abstract: The invention relates to liquid-crystalline mixtures comprising at least one compound of the formula I, in which X, L1, L2, L3, L4 and alkenyl have the meanings indicated in claim 1, in order to increase the pretilt at the polyimide surface, and to liquid-crystalline media comprising one or more compounds of the formula I in electro-optical liquid-crystal displays and in LC lenses.
    Type: Application
    Filed: February 15, 2011
    Publication date: December 27, 2012
    Applicant: Merck Patent Gesellschaft Mit Beschrankter Haftung
    Inventors: Michael Wittek, Brigitte Schuler, Volker Reiffenrath
  • Publication number: 20120313043
    Abstract: To provide a liquid crystal composition satisfying at least one of characteristics such as a high maximum temperature of a nematic phase, a low minimum temperature thereof, a small viscosity, a large optical anisotropy, a large dielectric anisotropy, a large specific resistance, a large elastic constant, a high stability to ultraviolet light and heat, or a liquid crystal composition having a suitable balance regarding at least two of the characteristics; and an AM device having a short response time, a large voltage holding ratio, a large contrast ratio, a long service life and so forth; wherein a liquid crystal composition has a nematic phase and contains a specific compound having a high maximum temperature and a large dielectric anisotropy as a first component, and a specific compound having a small viscosity as a second component, and may contain a specific compound having a large dielectric anisotropy as a third component.
    Type: Application
    Filed: June 11, 2012
    Publication date: December 13, 2012
    Applicants: JNC PETROCHEMICAL CORPORATION, JNC CORPORATION
    Inventors: Taketo MAEDA, Takayoshi YANAI, Hiroyuki TANAKA, Norikatsu HATTORI
  • Publication number: 20120307177
    Abstract: The invention relates to an electro-optical liquid-crystal display which contains, as dielectric, a liquid-crystalline medium having negative dielectric anisotropy and includes a backlight which essentially only emits light having a wavelength of 400 nm or more or has, between the liquid-crystal layer and the backlight, a cut-off filter which essentially only allows light having a wavelength of 420 nm or more to pass through. In particular, the liquid-crystalline medium comprises a) a (first) dielectrically negative component (component A) which consists of one or more dielectrically negative compounds of the formula I in which the parameters have the meanings indicated in claim 2, and a further (second) dielectrically negative component (component B).
    Type: Application
    Filed: January 17, 2011
    Publication date: December 6, 2012
    Applicant: MERCK PATENT GESELLSCHAFT MIT BESCHRANKTER HAFTUNG
    Inventors: Atsutaka Manabe, Kazuaki Tarumi, Hubert Spreitzer, Axel Jansen, Melanie Klasen-Memmer
  • Patent number: 8293947
    Abstract: The present invention concerns a method for the preparation of therapeutically valuable triphenylbutene derivatives, especially ospemifene or fispemifene.
    Type: Grant
    Filed: September 16, 2010
    Date of Patent: October 23, 2012
    Assignee: Hormos Medical Ltd.
    Inventors: Marja Sodervall, Maire Eloranta, Arja Kalapudas
  • Patent number: 8283001
    Abstract: Disclosed is a liquid crystal composition suitable for producing a liquid crystal electrooptical element which can be driven at a low voltage in a wide temperature range and has high display quality. Also disclosed is a liquid crystal electrooptical element produced by using the liquid crystal composition. Further disclosed is a liquid crystal compound useful in preparing this composition.
    Type: Grant
    Filed: May 2, 2011
    Date of Patent: October 9, 2012
    Assignee: AGC Seimi Chemical Co., Ltd.
    Inventors: Atsushi Kawamata, Tomoyuki Asai, Hidemasa Koh
  • Patent number: 8273420
    Abstract: Disclosed is a liquid crystal composition suitable for producing a liquid crystal electrooptical element which can be driven at a low voltage in a wide temperature range and has high display quality. Also disclosed is a liquid crystal electrooptical element produced by using the liquid crystal composition. Further disclosed is a liquid crystal compound represented by the formula [R1-(A1)a-Z1-(A2)b-Z2-(A7)e-Z5-A3-CF?CFCF2O-A4-Z3-(A5)c-Z4-(A6)d-R2].
    Type: Grant
    Filed: May 2, 2011
    Date of Patent: September 25, 2012
    Assignee: AGC Seimi Chemical Co., Ltd.
    Inventors: Atsushi Kawamata, Tomoyuki Asai, Hidemasa Koh
  • Patent number: 8263693
    Abstract: The present invention provides a flame retardant resin composition comprising (A) 100 weight part of a basic resin comprising acrylonitrile-butadiene-styrene copolymer resin and styrene-acrylonitrile copolymer resin; and (B) 10-30 weight part of a bromine-based organic compound flame retardant, and selectively comprising (C) 1-20 weight part of an antimony-based auxiliary flame retardant and (D) 1-10 weight part of one or more compounds selected from the group consisting of metalstearate and stearamide compounds, wherein the bromine-based organic compound flame retardant (B) is octabromodiphenyl ethane. The flame retardant resin composition of the present invention has excellent flame retardancy, impact strength and melt flow index.
    Type: Grant
    Filed: August 29, 2008
    Date of Patent: September 11, 2012
    Assignee: LG Chem, Ltd.
    Inventors: You-seok Seo, Ki-young Nam, Yong-yeon Hwang, Je-sun Yoo, Hyeon-gook Kim, Myeong-soo Song
  • Publication number: 20120193577
    Abstract: The invention provides a liquid crystal compound having a high stability to heat, light or the like, a wide temperature range of a nematic phase, a small viscosity, a suitable optical anisotropy, a large elastic constant K33, a large negative dielectric anisotropy and an excellent compatibility with other liquid crystal compounds. The invention provides a liquid crystal composition having characteristics similar to these of the compound. The invention provides a liquid crystal display device having a short response time, low electric power consumption, a low driving voltage, a large contrast and a wide temperature range in which the device can be used. The compound is a 2,3-difluorobenzene derivative (1) having a combination of a cyclohexane ring, a cyclohexene ring or a benzene ring phenyl and a butene bonding group. The liquid crystal composition includes this compound, and the liquid crystal display device contains this composition.
    Type: Application
    Filed: January 27, 2012
    Publication date: August 2, 2012
    Applicants: JNC PETROCHEMICAL CORPORATION, JNC CORPORATION
    Inventor: Masahide KOBAYASHI
  • Publication number: 20120105792
    Abstract: Disclosed is a liquid crystal composition suitable for producing a liquid crystal electrooptical element which can be driven at a low voltage in a wide temperature range and has high display quality. Also disclosed is a liquid crystal electrooptical element produced by using the liquid crystal composition. Further disclosed is a liquid crystal compound represented by the formula [R1-(A1)a-Z1-(A2)b-Z2-(A7)e-Z5-A3—CF?CFCF2O-A4-Z3-(A5)c-Z4-(A6)d-R2].
    Type: Application
    Filed: May 2, 2011
    Publication date: May 3, 2012
    Applicant: AGC Seimi Chemical Co., Ltd.
    Inventors: Atsushi Kawamata, Tomoyuki Asai, Hidemasa Koh
  • Patent number: 8137583
    Abstract: The invention provides a liquid crystal compound having stability to heat, light and so forth, a wide temperature range of the nematic phase, a small viscosity, a suitable optical anisotropy, a suitable dielectric anisotropy and an excellent compatibility with other liquid crystal compounds. The invention also provides a liquid crystal composition containing this liquid crystal compound and a liquid crystal display device containing this liquid crystal composition. The compound is represented by formula (a). Ra is, for example, alkyl having 1 to 10 carbons, and Rb is, for example, alkenyl having 2 to 10 carbons; La is, for example, hydrogen; and Z1, Z2 and Z3 are, for example, a single bond. The liquid crystal composition comprises this compound. The liquid crystal display device comprises this liquid crystal composition.
    Type: Grant
    Filed: May 21, 2009
    Date of Patent: March 20, 2012
    Assignees: JNC Corporation, Chisso Petrochemical Corporation
    Inventors: Takahiro Kubo, Teru Shimada
  • Publication number: 20120050661
    Abstract: Disclosed is a liquid crystal composition suitable for producing a liquid crystal electrooptical element which can be driven at a low voltage in a wide temperature range and has high display quality. Also disclosed is a liquid crystal electrooptical element produced by using the liquid crystal composition. Further disclosed is a liquid crystal compound useful in preparing this composition.
    Type: Application
    Filed: May 2, 2011
    Publication date: March 1, 2012
    Applicant: AGC Seimi Chemical Co., Ltd.
    Inventors: Atsushi KAWAMATA, Tomoyuki Asai, Hidemasa Koh
  • Publication number: 20110309300
    Abstract: The invention provides a liquid crystal compound that has an excellent compatibility with other liquid crystal compounds and also has at least one of characteristics such as a high stability to heat, light or the like, a suitable refractive index anisotropy (?n), a low threshold voltage and a suitable dielectric anisotropy (??). A compound represented by formula (1). For example, R1 is alkyl having 1 to 10 carbons, R2 is halogen or alkenyl having 2 to 10 carbons; the ring A1, the ring A2 and the ring A3 are 1,4-cyclohexylene or 1,4-phenylene; Z1, Z2 and Z3 are a single bond or alkylene having 1 to 4 carbons; G is —CH2— or —O—; and m is 1, and n and p is 0 or 1.
    Type: Application
    Filed: June 10, 2011
    Publication date: December 22, 2011
    Applicants: CHISSO PETROCHEMICAL CORPORATION, JNC CORPORATION
    Inventors: Tokifumi MASUKAWA, Yasuyuki GOTO, Tomohiro YANO
  • Publication number: 20110313170
    Abstract: This disclosure relates to reagents and methods useful in the synthesis of aryl fluorides, for example, in the preparation of 18F labeled radiotracers. The reagents and methods provided herein may be used to access a broad range of compounds, including aromatic compounds, heteroaromatic compounds, amino acids, nucleotides, and synthetic compounds.
    Type: Application
    Filed: June 30, 2011
    Publication date: December 22, 2011
    Inventor: Stephen Gregory DiMagno
  • Publication number: 20110260106
    Abstract: A nematic phase liquid crystal compound with negative dielectric constant has a structure represented by wherein R1 represents a hydrogen atom or linear alkyl having 1 to 8 carbon atoms or linear alkenyl having 1-8 carbon atoms, or an alkoxy or alykenoxy formed by substituting one or nonadjacent two CH1 in the linear alkyl or alkenyl with oxygen atom, wherein 0 to 4 hydrogen atoms of R1 group can be substituted with fluorine; R2 represents a hydrogen atom or linear alkyl having 1 to 8 carbon atoms, or R2 represents a linear fluoroalkyl having 1 to 8 carbon atoms, in which group 0 to 4 hydrogens can be substituted with fluorine atoms; A represents a benzene ring or 1,4-cyclohexane ring, if A is a benzene ring 0 to 4 hydrogen atoms on the benzene ring may be substituted with fluorine; n=1 to 2, and m=0 to 2.
    Type: Application
    Filed: June 3, 2009
    Publication date: October 27, 2011
    Inventors: Baohua Hu, Hu Yuan, Yinbo Zhou, Xuesong Jiang, Tingting Zhang, Haichao Fu, Xueming Song
  • Publication number: 20110240919
    Abstract: The subject is to provide a liquid crystal that has a high stability to heat, light and so forth, a wide temperature range of a nematic phase, a small viscosity, a large optical anisotropy and a suitable elastic constant K33, and further has a large negative dielectric anisotropy and an excellent compatibility with any other liquid crystal compound. The invention provides the compound (1): wherein, for example, R1 and R2 are hydrogen, alkyl having 1 to 10 carbons, alkenyl having 2 to 10 carbons, alkoxy having 1 to 9 carbons, alkoxyalkyl having 2 to 9 carbons or alkenyloxy having 2 to 9 carbons; when one of the ring A1, the ring A2 and the ring A3 is 1,4-phenylene or 2,3-difluoro-1,4-phenylene, the other two are 1,4-cyclohexylene or 1,4-cyclohexenylene; and Z1 is a single bond, —(CH2)2—, —CH2O—, —OCH2—, —COO— or —OCO—.
    Type: Application
    Filed: March 28, 2011
    Publication date: October 6, 2011
    Applicants: CHISSO CORPORATION, CHISSO PETROCHEMICAL CORPORATION
    Inventor: Masahide KOBAYASHI
  • Patent number: 7951432
    Abstract: A liquid crystal compound represented by formula (1), a liquid crystal composition comprising the compound, and a liquid crystal display device comprising the composition: For example, R1 is alkyl having 1 to 20; ring A1, ring A2, ring A3, ring A4, ring A5, and ring A6 are 1,4-cyclohexylene or 1,4-phenylene; Z1, Z2, Z3, Z4, Z5, and Z6 is a single bond; X1 is hydrogen or halogen; l, m, n, o, p, and q are 0 or 1, and l+m+n+o+p+q is 3.
    Type: Grant
    Filed: June 4, 2009
    Date of Patent: May 31, 2011
    Assignees: Chisso Corporation, Chisso Petrochemical Corporation
    Inventor: Hiroyuki Tanaka
  • Publication number: 20110079753
    Abstract: The invention provides a liquid crystal compound having stability to heat, light and so forth, a wide temperature range of the nematic phase, a small viscosity, a suitable optical anisotropy, a suitable dielectric anisotropy and an excellent compatibility with other liquid crystal compounds. The invention also provides a liquid crystal composition containing this liquid crystal compound and a liquid crystal display device containing this liquid crystal composition. The compound is represented by formula (a). Ra is, for example, alkyl having 1 to 10 carbons, and Rb is, for example, alkenyl having 2 to 10 carbons; La is, for example, hydrogen; and Z1, Z2 and Z3 are, for example, a single bond. The liquid crystal composition comprises this compound. The liquid crystal display device comprises this liquid crystal composition.
    Type: Application
    Filed: May 21, 2009
    Publication date: April 7, 2011
    Inventors: Takahiro Kubo, Teru Shimada
  • Publication number: 20110037024
    Abstract: The invention provides a liquid crystal compound represented by the following formula having stability to heat, light and so forth, a wide temperature range of a nematic phase, a small viscosity, a large optical anisotropy and a suitable elastic constant K33 (K33: bend elastic constant), and further having a suitable and negative dielectric anisotropy and an excellent compatibility with other liquid crystal compounds, and provides a liquid crystal composition including the compound, wherein R1 and R2 are hydrogen, alkyl or the like, ring A1 is trans-1,4-cyclohexylene, 1,4-phenylene or the like, L1 to L4 are hydrogen or fluorine, and at least three of them are fluorine; when the ring A1 is trans-1,4-cyclohexylene or the like, Z1 is a single bond, —(CH2)2— or the like, when ring A1 is 1,4-phenylene, Z1 is —(CH2)2— or the like.
    Type: Application
    Filed: March 25, 2009
    Publication date: February 17, 2011
    Applicants: CHISSO CORPORATION, CHISSO PETROCHEMICAL CORPORATION
    Inventor: Masahide Kobayashi
  • Publication number: 20100328600
    Abstract: The invention provides a liquid crystal compound having stability to heat, light and so forth, a wide temperature range of a nematic phase, a small viscosity, a suitable optical anisotropy, a suitable elastic constant K33, a suitable and negative dielectric anisotropy, and an excellent compatibility with other liquid crystal compounds. The invention provides a liquid crystal composition containing the compound described above and having stability to heat, light and so forth, a small viscosity, a suitable optical anisotropy, a suitable and negative dielectric anisotropy, a suitable elastic constant K33, a low threshold voltage, a high maximum temperature of a nematic phase, and a low minimum temperature of the nematic phase. The invention also provides a liquid crystal display device having a short response time, a small power consumption, a low driving voltage, and a large contrast, and containing the composition described above which can be used in a large temperature range.
    Type: Application
    Filed: September 1, 2008
    Publication date: December 30, 2010
    Applicants: CHISSO CORPORATION, CHISSO PETROCHEMICAL CORPORATION
    Inventors: Teru Shimada, Masahide Kobayashi
  • Publication number: 20100314582
    Abstract: The present invention relates to dielectrically positive liquid-crystalline media comprising one or more compounds of the formula I in which the parameters have the meaning indicated in the specification, and optionally one or more compounds selected from the group of the compounds of the formulae II and III in which the parameters have the meaning indicated in the specification, and optionally one or more compounds of the formula IV in which the parameters have the meaning indicated in the specification, and to liquid-crystal displays containing these media, especially to active-matrix displays and in particular to TN, IPS and FFS displays.
    Type: Application
    Filed: January 23, 2009
    Publication date: December 16, 2010
    Inventors: Michael Wittek, Markus Czanta, Atsutaka Manabe, Lars Lietzau, Marcus Reuter, Brigitte Schuler, Elisabeth Meyer
  • Patent number: 7846514
    Abstract: The invention provides a liquid crystal compound which has stability to heat, light and so forth, shows liquid crystal phases in a wide temperature range, and has a small viscosity, an appropriate optical anisotropy, a large dielectric anisotropy, and an excellent compatibility with other liquid crystal compounds. The invention provides a liquid crystal composition which has an appropriate optical anisotropy, an appropriate dielectric anisotropy, a low threshold voltage, and a high maximum temperature and a low minimum temperature of a nematic phase. The invention provides a liquid crystal display device which has a short response time, a small power consumption, a small driving voltage, and a large contrast, and can be used in a wide temperature range. The liquid crystal compound is a halogeno-benzene derivative having a trifluoropropenyl group or trifluoropropynyl group at a side chain, such as, for example, trans-4?-[3,5-difluoro-4-(3,3,3-trifluoropropenyl)phenyl]-trans-4-propylbicyclohexyl.
    Type: Grant
    Filed: January 15, 2008
    Date of Patent: December 7, 2010
    Assignees: Chisso Corporation, Chisso Petrochemical Corporation
    Inventor: Teru Shimada
  • Patent number: 7820251
    Abstract: The disclosed is a liquid crystal compound and method for manufacturing the same. The liquid crystal compound can be used alone or mixed with commercially available liquid crystal compounds. Because low rotational viscosity of the liquid crystal compound of the invention, it can be used as positive or negative dielectric anisotropic liquid crystal composition.
    Type: Grant
    Filed: September 21, 2009
    Date of Patent: October 26, 2010
    Assignee: Industrial Technology Research Institute
    Inventors: An-Cheng Chen, Pei-Chen Huang, Kung-Lung Cheng, Shih-Hsien Liu
  • Publication number: 20100237285
    Abstract: The invention relates to liquid-crystalline compounds of the formula I in which R1, R2, A1, A2, A3, A4, Z1, Z2, Z3, V, a, b and c have the meanings indicated in Claim 1, and to liquid-crystalline media comprising at least one compound of the formula I, and to electro-optical displays containing a liquid-crystalline medium of this type.
    Type: Application
    Filed: July 18, 2007
    Publication date: September 23, 2010
    Inventors: Lars Lietzau, Markus Czanta, Atsutaka Manabe, Kai Jaehrling
  • Patent number: 7785675
    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: Grant
    Filed: March 14, 2006
    Date of Patent: August 31, 2010
    Assignee: Adeka Corporation
    Inventors: Masatomi Irisawa, Tomohisa Miura, Hirokatsu Shinano