Patents Assigned to Chisso Corporation
  • Patent number: 8105503
    Abstract: It is intended to provide an aqueous solution of a thermoresponsive polymer, which shows an upper critical solution temperature (UCST) and is capable of maintaining a dissolved state, even if it is stored for a long period of time at a temperature at which a ligand such as an antibody or an antigen is not inactivated. A UCST lowering agent is incorporated in a predetermined amount in an aqueous solution of a thermoresponsive polymer which shows a UCST in a state of containing water, thereby lowering the UCST of the aqueous solution to less than the storage temperature, and the resulting aqueous solution is stored.
    Type: Grant
    Filed: May 31, 2011
    Date of Patent: January 31, 2012
    Assignee: Chisso Corporation
    Inventors: Masaru Eguchi, Noriyuki Ohnishi
  • Patent number: 8105654
    Abstract: To provide thermoadhesive conjugate fibers, nonwoven fabrics and cellulosic fiber blended nonwoven fabrics employing them, and wipers and absorbers employing the fabrics, thermoadhesive conjugate fibers comprise a thermoplastic resin (I) containing a modified polyolefin with at least one type of reactive functional group as a first component and having a second component composed of a thermoplastic resin (II) with a higher melting point than the thermoplastic resin (I) of the first component combined in a conjugate therewith, the first component being formed continuously along the length of at least a portion of the fiber surface, wherein the fiber surfaces are coated with a fiber treating agent containing a multifunctional compound capable of reacting with the reactive functional group of the modified polyolefin.
    Type: Grant
    Filed: November 3, 2008
    Date of Patent: January 31, 2012
    Assignees: Chisso Corporation, Chisso Polypro Fiber Compound Ltd.
    Inventors: Yoshihiro Nakai, Masuo Iwata
  • Patent number: 8088372
    Abstract: A thrombin mutant in which at least serine at position 205 among amino acids in the active center of the thrombin B chain has been replaced with another amino acid, and further at least one of the following replacements have been introduced: (I) replacement of arginine at position 89 in the B-chain with another amino acid; (II) replacement of threonine at position 69 or serine at position 22 in the B-chain with another amino acid; (III) replacement of alanine at position 200 in the B-chain with another amino acid; and (IV) replacement of lysine at position 65 in the B-chain with threonine.
    Type: Grant
    Filed: November 15, 2007
    Date of Patent: January 3, 2012
    Assignees: Chisso Corporation, Fujimori Kogyo Co., Ltd.
    Inventors: Kazuya Hosokawa, Tomoko Wada
  • Publication number: 20110274925
    Abstract: A poly(N-alkylcarbazole) columnar structure having electroconductivity is provided. The poly(N-alkylcarbazole) columnar structure having electroconductivity may be produced by electrolytically polymerizing an N-alkylcarbazole in a particular solvent.
    Type: Application
    Filed: March 4, 2011
    Publication date: November 10, 2011
    Applicants: NATIONAL UNIVERSITY CORPORATION CHIBA UNIVERSITY, CHISSO CORPORATION
    Inventors: Katsuyoshi HOSHINO, Kazuki TAKIZAWA, Katsuyuki MURASHIRO, Toshiki KOMATSU
  • Patent number: 8048336
    Abstract: A polymerizable cholesteric liquid crystal composition in the invention includes at least one compound selected from the group consisting of a polymerizable ester compound (1) having a residue of a hydrolysate of ?-oryzanol (A) and having a ring structure, a polymerizable ester compound (2) having a residue of a hydrolysate of ?-oryzanol (A) and having no ring structures, and a polymerizable ester compound (3) having a residue of a hydrogenated product of ?-oryzanol.
    Type: Grant
    Filed: April 16, 2010
    Date of Patent: November 1, 2011
    Assignees: Chisso Corporation, Chisso Petrochemical Corporation
    Inventor: Mayumi Tanabe
  • Patent number: 8048335
    Abstract: A cholesteric liquid crystal composition containing at least one esterified product selected from the group consisting of (1) an esterified product of a hydrolysate of (A) a ?-oryzanol and (B1) a carboxylic acid compound, (2) an esterified product of a hydrogenated product of a hydrolysate of (A) a ?-oryzanol and (B2) a carboxylic acid compound, and (3) an esterified product of a hydrogenated product of (A) a ?-oryzanol and (B3) a carboxylic acid compound. The ?-oryzanol (A) is a mixture containing at least one ferulate ester of a vegetable sterol and at least one ferulate ester of a triterpene alcohol, and the hydrolysate of the ?-oryzanol (A) is a mixture containing at least one vegetable sterol and at least one triterpene alcohol.
    Type: Grant
    Filed: October 2, 2009
    Date of Patent: November 1, 2011
    Assignees: Chisso Corporation, Chisso Petrochemical Corporation
    Inventor: Mayumi Tanabe
  • Publication number: 20110261312
    Abstract: A liquid crystal composition is provided 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 is properly balanced regarding at least two characteristics. An AM device is provided that has a short response time, a large voltage holding ratio, a large contrast ratio, a long service life and so forth. A liquid crystal composition having a nematic phase, wherein the first component contains a specific five ring compound having a large optical anisotropy and a large dielectric anisotropy, the second component contains a specific compound having a small viscosity, and the third component contains a specific four ring compound having a high maximum temperature.
    Type: Application
    Filed: August 20, 2008
    Publication date: October 27, 2011
    Applicants: Chisso Petrochemical Corporatioon, CHISSO CORPORATION
    Inventors: Masayuki Saito, Shigeru Kibe
  • Publication number: 20110260104
    Abstract: The invention 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 large elastic constant, a high stability to ultraviolet light and a high stability to heat, or that is suitably balanced regarding at least two of the characteristics; and 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 that has a nematic phase and includes a specific three-ring compound having a large dielectric anisotropy as a first component and a specific four-ring compound having a high maximum temperature and a large dielectric anisotropy as a second component, and a liquid crystal display device containing the composition.
    Type: Application
    Filed: March 28, 2011
    Publication date: October 27, 2011
    Applicants: CHISSO PETROCHEMICAL CORPORATION, CHISSO CORPORATION
    Inventors: Taketo MAEDA, Norikatsu HATTORI, Hiroaki FUJITA
  • Publication number: 20110244749
    Abstract: A composite material as a sheet material is described, being relatively cheap, most useful as a raw material of a sanitary product or the like, such as underwear, dust-proof mask or dispensable paper diaper, etc., and good in processability, stretchability, gas-permeability, softness, and touch. The composite material is formed by laminating a stretchable layer and a conjugate spunbonded nonwoven fabric including conjugate fibers including a low-melting-point component and a high-melting-point component. The conjugate fibers are partially bonded to each other by thermocompression, wherein each bonded portion has fine folded structures including alternate hill and valley regions in the CD, and the distance between neighboring hills is 100-400 ?m in average. The conjugate spunbonded nonwoven fabric exhibits stretchability through the spread of the fine folded structures, and has, at 5% elongation, a CD-strength of 0.1 N/5 cm or less and an MD/CD strength ratio of 200 or more.
    Type: Application
    Filed: March 30, 2011
    Publication date: October 6, 2011
    Applicants: CHISSO CORPORATION, CHISSO POLYPRO FIBER COMPANY LIMITED
    Inventors: Toshikatsu Fujiwara, Taiju Terakawa
  • Publication number: 20110240918
    Abstract: An optically active compound having a polymerizable group which is represented by formula (1) or (2). P1-Q1-(A1-Z1)m—X1—(Z1-A1)m-Q1-P2??(1) P1-Q1-(A1-Z1)m—X2??(2) For example, A1 is independently divalent group having ring; Z1 is independently bonding group; m is independently an integer from 1 to 5; Q1 is independently alkylene having 1 to 20 carbons; X1 is a divalent group having chirality; X2 is a monovalent group having chirality, and P1 and P2 are polymerizable groups; and concerns a polymerizable liquid crystal composition, a polymer, an optical device and an article.
    Type: Application
    Filed: March 25, 2011
    Publication date: October 6, 2011
    Applicants: CHISSO CORPORATION, CHISSO PETROCHEMICAL CORPORATION
    Inventors: Daisuke OOTSUKI, Junichi INAGAKI
  • 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
  • Publication number: 20110233453
    Abstract: It is intended to provide an aqueous solution of a thermoresponsive polymer, which shows an upper critical solution temperature (UCST) and is capable of maintaining a dissolved state, even if it is stored for a long period of time at a temperature at which a ligand such as an antibody or an antigen is not inactivated. A UCST lowering agent is incorporated in a predetermined amount in an aqueous solution of a thermoresponsive polymer which shows a UCST in a state of containing water, thereby lowering the UCST of the aqueous solution to less than the storage temperature, and the resulting aqueous solution is stored.
    Type: Application
    Filed: May 31, 2011
    Publication date: September 29, 2011
    Applicant: CHISSO CORPORATION
    Inventors: MASARU EGUCHI, NORIYUKI OHNISHI
  • Publication number: 20110193021
    Abstract: A liquid crystal compound is to be obtained that has stability to heat, light and so forth, a high clearing point, a suitable optical anisotropy, a large negative dielectric anisotropy, and excellent compatibility with other liquid crystal compounds. A liquid crystal composition containing the compound is also to be obtained that has a low viscosity, a suitable optical anisotropy, a suitable negative dielectric anisotropy, a low threshold voltage, a high maximum temperature of a nematic phase (phase transition temperature from a nematic phase to an isotropic phase), and a low minimum temperature of a nematic phase. A compound having a hydrocoumarin skeleton is synthesized, and a liquid crystal composition containing the compound is produced.
    Type: Application
    Filed: April 11, 2011
    Publication date: August 11, 2011
    Applicants: CHISSO CORPORATION, CHISSO PETROCHEMICAL CORPORATION
    Inventors: Mayumi GOTO, Teruyo SUGIURA, Norikatsu HATTORI, Kouki SAGOU
  • Publication number: 20110189470
    Abstract: The curable resin composition of the present invention contains inorganic particles and a curable resin. The inorganic particles includes an inorganic particle (a-1) having a Mohs hardness of 7 or more and an average particle diameter of 1 ?m or less, an inorganic particle (a-2) having a Mohs hardness of 4 or more to less than 7 and an average particle diameter of 1 ?m or less, and an inorganic particle (a-3) having a Mohs hardness of less than 4 and an average particle diameter of 1 ?m or less. The curable resin is at least one selected from a group consisting of a thermosetting resin and an active energy ray-curable resin.
    Type: Application
    Filed: October 20, 2010
    Publication date: August 4, 2011
    Applicant: CHISSO CORPORATION
    Inventors: Hiroyuki Iizuka, Kenya Ito, Koji Ohguma, Mikio Yamahiro
  • Patent number: 7989560
    Abstract: A polymer containing: a constitutional unit A that is derived from fluorosilsesquioxane having one addition polymerizable functional group in a molecule; a constitutional unit B that is derived from organopolysiloxane having an addition polymerizable functional group; and a constitutional unit C that is derived from an addition polymerizable functional monomer containing a group having active hydrogen, and optionally containing a constitutional unit D that is derived from an addition polymerizable monomer other than the fluorosilsesquioxane having one addition polymerizable functional group in a molecule, the organopolysiloxane having an addition polymerizable functional group and the addition polymerizable monomer containing a group having active hydrogen.
    Type: Grant
    Filed: December 17, 2007
    Date of Patent: August 2, 2011
    Assignee: Chisso Corporation
    Inventors: Hisao Oikawa, Koji Ohguma, Kenya Ito, Mikio Yamahiro
  • Publication number: 20110180756
    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, a high stability to heat and a large elastic constant, or that is suitably balanced regarding at least two of the 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 that has a nematic phase and includes a specific four-ring compound having a high maximum temperature and a large dielectric anisotropy as a first component and a specific compound having a small dielectric anisotropy as a second component, and also provides a liquid crystal display device containing this composition.
    Type: Application
    Filed: January 24, 2011
    Publication date: July 28, 2011
    Applicants: CHISSO CORPORATION, CHISSO PETROCHEMICAL CORPORATION
    Inventors: Shuichi GOTO, Kouki SAGOU, Hiroaki FUJITA
  • Publication number: 20110175027
    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 negatively large dielectric anisotropy, a large specific resistance and a high stability to ultraviolet light or 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: January 13, 2011
    Publication date: July 21, 2011
    Applicants: CHISSO CORPORATION, CHISSO PETROCHEMICAL CORPORATION
    Inventors: Norikatsu HATTORI, Eriko KURIHARA
  • Publication number: 20110163269
    Abstract: The subject is to provide a liquid crystal composition that satisfies at least one characteristic 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 two characteristics thereof. 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 includes a specific four-ring compound replaced by fluorine having a high maximum temperature as a first component, and a specific compound having a negatively large anisotropy as a second component, and provides a liquid crystal display device containing the composition.
    Type: Application
    Filed: June 3, 2009
    Publication date: July 7, 2011
    Applicants: CHISSO CORPORATION, CHISSO PETROCHEMICAL CORPORATION
    Inventors: Makoto Daigo, Hiroaki Fujita
  • Publication number: 20110165032
    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: Application
    Filed: January 25, 2011
    Publication date: July 7, 2011
    Applicant: CHISSO CORPORATION
    Inventors: SHUICHI HONDA, Minoru Yasueda, Satoshi Hayashida, Masatsugu Yamaguchi, Toru Tanaka
  • Publication number: 20110158885
    Abstract: An object of the present invention is to provide more inexpensive high purity crystalline silicon which can satisfy not only a quality required to a raw material of silicon for a solar cell but also a part of a quality required to silicon for an up-to-date semiconductor and a production process for the same and provide high purity silicon tetrachloride used for production of high purity crystalline silicon and a production process for the same. The high purity crystalline silicon of the present invention has a boron content of 0.015 ppmw or less and a zinc content of 50 to 1000 ppbw. The production process for high purity crystalline silicon according to the present invention is characterized by that a silicon tetrachloride gas and a zinc gas are supplied to a vertical reactor to react them at 800 to 1200° C.
    Type: Application
    Filed: September 4, 2009
    Publication date: June 30, 2011
    Applicants: Chisso Corporation, JX Nippon Mining & Metals Corporation, Toho Titanium Co., Ltd.
    Inventors: Satoshi Hayashida, Wataru Kato