Patents Assigned to Chisso Corporation
  • Patent number: 7943207
    Abstract: A liquid crystal composition having a nematic phase that includes two components, wherein the first component is a specific four-membered ring compound having a large maximum temperature, and the second component is a specific four-membered ring compound having a large dielectric anisotropy and a large optical anisotropy, and a liquid crystal display device containing the composition.
    Type: Grant
    Filed: August 26, 2009
    Date of Patent: May 17, 2011
    Assignees: Chisso Corporation, Chisso Petrochemical Corporation
    Inventors: Takashi Yoshino, Makoto Hamano, Masayuki Saito
  • Publication number: 20110109867
    Abstract: A liquid crystal composition is provided that satisfies at least one of characteristics such as a high maximum temperature of a nematic phase, a low minimum temperature of a nematic phase, a small viscosity, a suitable optical anisotropy, a negatively large dielectric anisotropy, a large specific resistance, a high stability to ultraviolet light and a high stability to heat, or that is suitably balanced regarding at least two of the characteristics. The crystal liquid display device using the composition is suitable for an AM device that has a short response time, a large voltage holding ratio, a large contrast ratio, a long service life and so forth, and can be used for a liquid crystal projector, a liquid crystal television and so forth.
    Type: Application
    Filed: July 23, 2009
    Publication date: May 12, 2011
    Applicants: CHISSO CORPORATION, CHISSO PETROCHEMICAL CORPORATION
    Inventors: Norikatsu Hattori, Masayuki Saito
  • Patent number: 7939617
    Abstract: A polysiloxane represented by the formula (1) or (2): where R, R1, R2, m and n are defined in the specification.
    Type: Grant
    Filed: December 14, 2007
    Date of Patent: May 10, 2011
    Assignee: Chisso Corporation
    Inventors: Nobumasa Ootake, Kazuhiro Yoshida, Kenichi Watanabe, Yasuhito Yamaryo
  • Publication number: 20110095228
    Abstract: The invention is to provide a liquid crystal composition that satisfies at least one characteristic among the characteristics such as a high maximum temperature of a nematic phase, a low minimum temperature of a nematic phase, a small viscosity, a large optical anisotropy, a large dielectric anisotropy, a large specific resistance, a high stability to ultraviolet light and a high stability to heat, or that is suitably balanced concerning at least two characteristics. The invention is to provide an AM device that has a short response time, a large voltage holding ratio, a large contrast ratio, a long service life and so forth. The invention is to provide a liquid crystal composition having a nematic phase that contains a specific five-membered ring compound having a large optical anisotropy and a large dielectric anisotropy as a first component and a specific compound having a small viscosity as a second component, and a liquid crystal display device containing the composition.
    Type: Application
    Filed: August 20, 2008
    Publication date: April 28, 2011
    Applicants: CHISSO CORPORATION, CHISSO PETROCHEMICAL CORPORATION
    Inventors: Masayuki Saito, Shigeru Kibe
  • Publication number: 20110097519
    Abstract: Subject The subject is to provide a liquid crystal composition that satisfies at least one of characteristics such as a high maximum temperature of the nematic phase, a low minimum temperature of the nematic phase, a small viscosity, a suitable optical anisotropy, a large negative dielectric anisotropy, a large specific resistance, a high stability to ultraviolet light and a high stability to heat, or that is suitably balanced regarding at least two of the characteristics. The subject is also to provide the AM device that has a short response time, a large voltage holding ratio, a large contrast ratio, a long service life, and so forth.
    Type: Application
    Filed: August 13, 2010
    Publication date: April 28, 2011
    Applicants: CHISSO CORPORATION, CHISSO PETROCHEMICAL CORPORATION
    Inventors: Takayoshi Yanai, Masayuki Saito
  • Publication number: 20110096285
    Abstract: The subject is to provide a liquid crystal composition that satisfies at least one of characteristics such as a high maximum temperature of a nematic phase, a low minimum temperature of a nematic phase, a small viscosity, a suitable optical anisotropy, a large dielectric anisotropy, a large specific resistance, a high stability to ultraviolet light and a high stability to heat, or that is suitably balanced regarding at least two characteristics. The subject is to provide an AM device that has a short response time, a large voltage holding ratio, a large contrast ratio, a long service life and so forth. The invention provides a liquid crystal composition having a negative dielectric anisotropy that contains a specific compound having negatively large dielectric anisotropy as the first component, and has a specific two ring compound having a low viscosity as the second component, and provides a liquid crystal display device containing the composition.
    Type: Application
    Filed: October 21, 2010
    Publication date: April 28, 2011
    Applicants: CHISSO CORPORATION, CHISSO PETROCHEMICAL CORPORATION
    Inventor: Masayuki SAITO
  • Publication number: 20110089373
    Abstract: The subject is to provide a liquid crystal composition that satisfies at least one of characteristics such as a high maximum temperature of a nematic phase, a low minimum temperature of a nematic phase, a small viscosity, a large optical anisotropy, a negatively large dielectric anisotropy, a large specific resistance, a high stability to ultraviolet light and a high stability to heat, or that is suitably balanced regarding at least two of the characteristics. The subject is to provide a AM device that has a short response time, a large voltage holding ratio, a large contrast ratio, a long service life and so forth.
    Type: Application
    Filed: August 20, 2010
    Publication date: April 21, 2011
    Applicants: CHISSO CORPORATION, CHISSO PETROCHEMICAL CORPORATION
    Inventors: Takayoshi Yanai, Masayuki Saito
  • Publication number: 20110091693
    Abstract: A material of cured film, a thermosetting film and a display device are provided. The thermosetting composition includes a solvent and at least one siloxane polymer selected from the group consisting of siloxane polymer (A) obtained by hydrolyzing or condensing a silane mixture containing a monofunctional silane represented by formula (1) and a trifunctional silane represented by formula (2), and siloxane polymer (B) obtained by hydrolyzing or condensing a silane mixture containing a bifunctional silane represented by formula (3) and a tetrafunctional silane represented by formula (4). R independently represents hydrogen, an alkyl group having 1 to 10 carbons whose arbitrary hydrogen can be replaced by a halogen, an aryl group having 6 to 10 carbons whose arbitrary hydrogen can be replaced by a halogen, or an alkenyl group having 2 to 10 carbons whose arbitrary hydrogen can be replaced by a halogen. R? independently represents a hydrolyzable group.
    Type: Application
    Filed: September 29, 2010
    Publication date: April 21, 2011
    Applicant: CHISSO CORPORATION
    Inventors: YUKI OKAMOTO, YUUKI KIMURA, TOMOHIRO ETOU
  • Publication number: 20110091703
    Abstract: A material of cured film, a thermosetting film and a display device are provided. The thermosetting composition includes a solvent and at least one siloxane polymer selected from the group consisting of siloxane polymer (A) obtained by hydrolyzing or condensing a silane mixture containing a mono functional silane represented by formula (1) and a trifunctional silane represented by formula (2), and siloxane polymer (B) obtained by hydrolyzing or condensing a silane mixture containing a bifunctional silane represented by formula (3) and a tetrafunctional silane represented by formula (4). R independently represents hydrogen, an alkyl group having 1 to 10 carbons whose arbitrary hydrogen can be replaced by a halogen, an aryl group having 6 to 10 carbons whose arbitrary hydrogen can be replaced by a halogen, or an alkenyl group having 2 to 10 carbons whose arbitrary hydrogen can be replaced by a halogen. R? independently represents a hydrolyzable group.
    Type: Application
    Filed: September 16, 2010
    Publication date: April 21, 2011
    Applicant: CHISSO CORPORATION
    Inventors: YUKI OKAMOTO, YUUKI KIMURA, TOMOHIRO ETOU
  • Patent number: 7926930
    Abstract: The invention relates to a method for manufacturing an inkjet ink including a polyamic acid (A), including a step of at least reacting one or more compounds selected from the group of a monoamine (a3) and a compound having one acid anhydride group (a4) with a compound having two or more acid anhydride groups (a1) and a diamine (a2).
    Type: Grant
    Filed: August 30, 2007
    Date of Patent: April 19, 2011
    Assignee: Chisso Corporation
    Inventors: Hiroyuki Satou, Setsuo Itami, Takayuki Hattori
  • Patent number: 7927671
    Abstract: The invention includes compounds represented by Formula (1): wherein Ra is a polymerizable group such as (meth)acryloyloxy, an oxirane ring, an oxetane ring or the like; A is 1,4-cyclohexylene, 1,4-phenylene or the like; Z is a single bond, alkylene having 1 to 20 carbon atoms or the like; Y is a single bond, alkylene having 1 to 20 carbon atoms or the like; and m and n are an integer of 0 to 5.
    Type: Grant
    Filed: September 21, 2007
    Date of Patent: April 19, 2011
    Assignees: Chisso Corporation, Chisso Petrochemical Corporation
    Inventor: Takashi Kato
  • Publication number: 20110086185
    Abstract: Subject The main aim of the invention is to provide a polymerizable liquid crystal compound that has a liquid crystal phase with a wide temperature range, an excellent compatibility with another polymerizable liquid crystal compound and an excellent solubility in organic solvent, and is polymerizable by heat and light even in air.
    Type: Application
    Filed: September 30, 2010
    Publication date: April 14, 2011
    Applicants: CHISSO CORPORATION, CHISSO PETROCHEMICAL CORPORATION
    Inventors: DAISUKE OOTSUKI, JUNICHI INAGAKI
  • Patent number: 7922814
    Abstract: In the production process of the present invention for high purity polycrystal silicon, using a vertical reactor having a silicon chloride gas-feeding nozzle and a reducing agent gas-feeding nozzle which are disposed at an upper part and a waste gas discharge pipe, a silicon chloride gas and a reducing agent gas are fed into the reactor to form polycrystal silicon at a tip part of the silicon chloride gas-feeding nozzle by the reaction of the silicon chloride gas with the reducing agent gas, and the polycrystal silicon is allowed to grow from the tip part of the silicon chloride gas-feeding nozzle toward a lower part thereof.
    Type: Grant
    Filed: November 3, 2006
    Date of Patent: April 12, 2011
    Assignee: Chisso Corporation
    Inventors: Shuichi Honda, Minoru Yasueda, Satoshi Hayashida, Masatsugu Yamaguchi, Toru Tanaka
  • Patent number: 7919648
    Abstract: The invention relates to compounds represented by Formula (1): wherein Ra is alkyl or the like; Rb is fluorine or —CF3; A is 1,4-cyclohexylene, 1,4-phenylene or the like; Z is a single bond, alkylene or the like; Y is a single bond, alkylene or the like; and m and n are an integer of approximately 0 to approximately 5.
    Type: Grant
    Filed: December 7, 2006
    Date of Patent: April 5, 2011
    Assignees: Chisso Corporation, Chisso Petrochemical Corporation
    Inventor: Takashi Kato
  • Patent number: 7914862
    Abstract: A liquid crystal compound is provided that has excellent characteristics, such as a negatively large dielectric anisotropy. A liquid crystal composition containing the compound, and a liquid crystal display device containing the composition are also provided. A compound having the three factors, i.e., (1) a tetrahydropyran ring, (2) —CH2O— or —OCH2— and (3) exhibits excellent characteristics including a negatively large dielectric anisotropy. The use of the compound having the characteristics provides an excellent liquid crystal composition and an excellent liquid crystal display device.
    Type: Grant
    Filed: May 4, 2009
    Date of Patent: March 29, 2011
    Assignees: Chisso Corporation, Chisso Petrochemical Corporation
    Inventor: Tokifumi Masukawa
  • Patent number: 7914860
    Abstract: A liquid crystal composition is provided that has a wide temperature range of a nematic phase, has a suitable optical anisotropy, has a large negative dielectric anisotropy and has a large specific resistance, and a liquid crystal composition is provided that can increase an optical anisotropy and has a low minimum temperature of a nematic phase, preferably ?20° C. or less, while satisfying the aforementioned characteristics. A liquid crystal display device containing the liquid crystal composition is also provided. The liquid crystal composition of the invention has a negative dielectric anisotropy and contains a liquid crystal compound having terphenyl having one or two fluorines replacing hydrogen as a first component and a liquid crystal compound having phenylene having two halogens replacing hydrogens as a second component. The liquid crystal display device of the invention contains the liquid crystal composition.
    Type: Grant
    Filed: March 5, 2007
    Date of Patent: March 29, 2011
    Assignees: Chisso Corporation, Chisso Petrochemical Corporation
    Inventors: Hiroaki Fujita, Norikatsu Hattori
  • Publication number: 20110062383
    Abstract: Disclosed are: a liquid crystal composition which satisfies at least one property selected from a high upper limit temperature in a nematic phase, a low lower limit temperature in a nematic phase, a low viscosity, high optical anisotropy, high dielectric anisotropy, a high specific resistance, high stability against ultraviolet ray, high stability against heat and the like or has a proper balance between at least two properties selected from the above-mentioned properties; and an AM element having a short response time, a high voltage holding ratio, a high contrast ratio, a long service life and the like.
    Type: Application
    Filed: August 25, 2008
    Publication date: March 17, 2011
    Applicant: CHISSO CORPORATION
    Inventors: Shigeru Kibe, Masayuki Saito
  • Publication number: 20110062384
    Abstract: Subject The subject is to provide a liquid crystal composition that satisfies at least one of characteristics such as a high maximum temperature of a nematic phase, a low minimum temperature of a nematic phase, a small viscosity, a suitable optical anisotropy, a large dielectric anisotropy, a large elastic constant ratio, a small temperature dependence of the threshold voltage, a small frequency dependence of the dielectric anisotropy and a short helical pitch, or that is suitably balanced regarding at least two of the characteristics. The subject is to provide a STN device that has a short response time, a large contrast ratio, a low threshold voltage, a small electric power consumption, a steep voltage-transmission curve and a small light leak.
    Type: Application
    Filed: August 24, 2010
    Publication date: March 17, 2011
    Applicants: CHISSO CORPORATION, CHISSO PETROCHEMICAL CORPORATION
    Inventors: Takayoshi YANAI, Takashi HIRAOKA, Masayuki SAITO
  • Patent number: 7902173
    Abstract: The present invention provides a compound selected from sulfated cellulose and salts thereof which can be used as an active ingredient for a cutaneous external preparation produced intending to prevent, soften, improve or cure atopic cutaneous symptoms and the like and which are excellent in a hydrolytic resistance, and dermatitis therapeutic agents and cosmetics using the same.
    Type: Grant
    Filed: February 28, 2006
    Date of Patent: March 8, 2011
    Assignees: Chisso Corporation, Chisso Petrochemical Corporation
    Inventors: Naoyuki Yoshida, Kazushi Ishida, Shuji Sasaki, Takuo Ikeda, Jun Hiraki, Shigeyuki Aoyama
  • Patent number: RE42221
    Abstract: A polymerizable liquid crystal composition containing compounds represented by the formula (1-1) and the formula (1-2), compounds represented by the formula (2-1) and the formula (2-2), and a compound represented by the formula (3-1): the polymerizable liquid crystal composition having homogeneous, homeotropic, or hybrid alignment, which can be coated on a support substrate, for example, of a transparent plastic film such as a triacetyl cellulose film or cycloolefin polymer film, or glass, and is aligned on a substrate as a polymer film while maintaining the alignment.
    Type: Grant
    Filed: November 5, 2009
    Date of Patent: March 15, 2011
    Assignees: Chisso Corporation, Chisso Petrochemical Corporation
    Inventors: Maiko Ito, Masami Kimura, Ryushi Shundo