Patents Assigned to Dai-Ichi Kogyo Seiyaku Co., Ltd.
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Publication number: 20170073570Abstract: A cellulose fiber nano-dispersion pressing-in device for pressing a liquid, in which a cellulose fiber of a conifer-derived pulp is nano-dispersed, into a stratum, includes a grinding means for grinding the conifer-derived pulp in water, a dilution means for diluting a cellulose fiber-containing liquid obtained in the grinding means and a pressing-in means for pressing a nano-dispersion of the cellulose fiber obtained in the dilution means into a well. Therefore, it is applicable to water-stopping operation in a civil engineering process or to a process of industrial production of hydrocarbons such as crude oil, gas and the like for improving the recovery rate thereof.Type: ApplicationFiled: November 25, 2014Publication date: March 16, 2017Applicant: DAI-ICHI KOGYO SEIYAKU CO., LTD.Inventors: Yosuke GOI, Mineo SABI, Kazuhito JINNO, Koji NODA, Yoshitake KATO, Norihiko TOGASHI, Yosuke KUNISHI
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Patent number: 9593229Abstract: A polylactic acid resin composition excellent in impact resistance, migration resistance, and heat resistance, and excellent in productivity at the time of the mold forming thereof, and a resin molded article thereof. The polylactic acid resin composition includes a polylactic acid; a reaction product of at least one selected from the group consisting of sorbitol, mannitol, and dehydration condensates thereof, an alkylene oxide mainly formed of ethylene oxide, and a fatty acid having 12 to 24 carbon atoms; and a crystal nucleating agent comprising at least one compound selected from: an organic phosphonic acid salt compound, an amide compound having a ring structure, an organic hydrazide compound, an organic sulfonic acid salt compound, a phthalocyanine compound, and a melamine compound.Type: GrantFiled: December 11, 2013Date of Patent: March 14, 2017Assignee: DAI-ICHI KOGYO SEIYAKU CO., LTD.Inventor: Ken Morishita
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Publication number: 20160372752Abstract: A binder for an electrode of a lithium secondary battery contains a polyurethane aqueous dispersion. The polyurethane aqueous dispersion contains a hydrophilic group-containing polyurethane obtained by using at least (A) an organic polyisocyanate and (B) a compound having one or more active hydrogen groups. (A) the organic polyisocyanate has a content of 50 mass % or more and 80 mass % or less based on the hydrophilic group-containing polyurethane. (B) the compound having one or more active hydrogen groups contains (B1) a compound having one or more active hydrogen groups and (B2) a compound having one or more active hydrogen groups and one or more ionic hydrophilic groups.Type: ApplicationFiled: July 1, 2014Publication date: December 22, 2016Applicant: DAI-ICHI KOGYO SEIYAKU CO., LTD.Inventors: Katsuo TAKAHASHI, Takeshi MIYAMURA
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Patent number: 9518169Abstract: Provided are a polylactic acid resin composition excellent in impact resistance, migration resistance, and heat resistance, and excellent in productivity at the time of the mold forming thereof, and a resin molded article thereof. The polylactic acid resin composition includes a polylactic acid; a reaction product of at least one of a polyol and a polyol dehydration condensate, an alkylene oxide mainly formed of ethylene oxide, and a fatty acid having 12 to 24 carbon atoms; and a fatty acid amide.Type: GrantFiled: January 22, 2015Date of Patent: December 13, 2016Assignee: DAI-ICHI KOGYO SEIYAKU CO., LTD.Inventors: Hideaki Onishi, Ken Morishita
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Patent number: 9518168Abstract: Provided are a polylactic acid resin composition excellent in transparency, heat resistance, and migration resistance, and excellent in productivity at the time of the mold forming thereof, and a resin molded article thereof. The polylactic acid resin composition includes a polylactic acid; a reaction product of at least one selected from the group consisting of sorbitol, mannitol, and dehydration condensates thereof, an alkylene oxide mainly formed of ethylene oxide, and a fatty acid having 8 to 24 carbon atoms; and a fatty acid amide having a hydroxyl group.Type: GrantFiled: January 22, 2015Date of Patent: December 13, 2016Assignee: DAI-ICHI KOGYO SEIYAKU CO., LTD.Inventors: Hideaki Onishi, Ken Morishita
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Patent number: 9487707Abstract: A flame retardant composition for flammable plastic materials and a method for producing the same are disclosed. The flame retardant composition comprises 2,4,6-tris(2,4,6-tribromophenoxy)-1,3,5-triazine that contains 1 to 1000 ppm of a metal species of a water-insoluble polyvalent metal compound selected from the group consisting of oxide, hydroxide, carbonate, phosphate, sulfate and silicate present in the particles of 2,4,6-tris(2,4,6-tribromophenoxy)-1,3,5-triazine. The flame retardant composition is produced by reacting an alkali metal salt of 2,4,6-tribromophenol and cyanuric chloride in the presence of said water-insoluble polyvalent metal compound.Type: GrantFiled: May 1, 2009Date of Patent: November 8, 2016Assignees: BROMINE COMPOUNDS LTD., DAI-ICHI KOGYO SEIYAKU CO., LTD.Inventors: Hideaki Onishi, Michael Peled
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Publication number: 20160244634Abstract: The present invention provides a curable resin composition excellent in dispersion stability and capable of bettering various physical properties of hard coating films to be formed through curing, without requiring surface treatment of inorganic microparticles of silica or the like and use of dispersant. The curable resin composition contains an alkylene oxide-modified dipentaerythritol (meth)acylate and, as dispersed therein, surface-untreated inorganic microparticles having a mean particle size of from 1 to 150 nm. A ratio of inorganic microparticles in a total weight of these is from 10 to 45% by weight and a content of solvent is 1% by weight or less.Type: ApplicationFiled: September 8, 2014Publication date: August 25, 2016Applicant: DAI-ICHI KOGYO SEIYAKU CO., LTD.Inventor: Naohiro TAKAMURA
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Patent number: 9422410Abstract: Provided is a recyclable flame-retardant foamed styrene resin composition having high flame-retardancy and heat stability by adding little bromine-containing flame retardant. A flame-retardant foamed styrene resin composition containing (A) a styrene resin, (B) a mixture of (B1) tetrabromobisphenol A-bis(2,3-dibromo-2-methylpropyl ether) and (B2) another bromine-containing flame retardant, (C) zinc-modified hydrotalcite, (D) zeolite, and (G) a foaming agent, containing 0.005-0.08 parts by weight of (C) the zinc-modified hydrotalcite per 100 parts by weight of (A) the styrene resin.Type: GrantFiled: December 13, 2013Date of Patent: August 23, 2016Assignee: DAI-ICHI KOGYO SEIYAKU CO., LTD.Inventors: Masahito Nishiura, Hideaki Onishi, Hisanori Semori, Naomi Toyoshima
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Publication number: 20160200958Abstract: To provide an additive for drilling mud, used in drilling for petroleum, natural gas, civil engineering, mines, etc., which has high heat resistance and high mechanical shear resistance, of which the viscous property does not degrade even under high-temperature and high-shear conditions; has high pseudoplastic flowability and therefore secures high flowability during discharging; and is a naturally-derived one and is therefore highly biodegradable and has least adverse impact on environment. An additive for drilling mud, which contains cellulose fibers having a number-average fiber diameter of from 2 to 500 nm and a fiber aspect ratio of 50 or more and having a cellulose I-type crystal structure.Type: ApplicationFiled: August 26, 2014Publication date: July 14, 2016Applicant: DAI-ICHI KOGYO SEIYAKU CO., LTD.Inventors: Yousuke GOI, Mineo SABI, Kazuhito JINNO, Koji NODA
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Publication number: 20160200964Abstract: To provide an additive for crude oil recovery, used in secondary/tertiary recovery of crude oil, which has high heat resistance and high mechanical shear resistance, of which the viscous property does not degrade even under high-temperature and high-shear conditions; has high pseudoplastic flowability and therefore has a light transfer workload; and is a naturally-derived one and is therefore highly biodegradable and has least adverse impact on environment. An additive for crude oil recovery, which contains cellulose fibers having a number-average fiber diameter of from 2 to 500 nm and a fiber aspect ratio of 50 or more and having a cellulose I-type crystal structure, and, in the cellulose fibers, a hydroxyl group on a surface of the cellulose fibers is preferably chemically modified.Type: ApplicationFiled: August 26, 2014Publication date: July 14, 2016Applicant: DAI-ICHI KOGYO SEIYAKU CO., LTD.Inventors: Yousuke GOI, Mineo SABI, Kazuhito JINNO, Koji NODA
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Patent number: 9376546Abstract: Provided are a polylactic acid resin composition excellent in transparency, heat resistance, and migration resistance, and excellent in productivity at the time of the mold forming thereof, and a resin molded article thereof. The polylactic acid resin composition includes a polylactic acid; a reaction product of glycerin, an alkylene oxide mainly formed of ethylene oxide, and a fatty acid having 12 to 24 carbon atoms; and a fatty acid amide having a hydroxyl group.Type: GrantFiled: January 22, 2015Date of Patent: June 28, 2016Assignee: DAI-ICHI KOGYO SEIYAKU CO., LTD.Inventors: Hideaki Onishi, Ken Morishita
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Patent number: 9376510Abstract: A reactive emulsifier comprising a compound of formula (I), which makes polymerization stability satisfactory and is capable of improving the water resistance etc. of the polymer film to be obtained. In the formula (I), D represents a polymerizable unsaturated group represented by the chemical formula D-1 or D-2; m1 represents a number of 1 or larger; R1 represents an alkyl group having 1 to 12 carbon atoms; m2 represents a number of 0 to 4; and the sum of m1 and m2 is 1 to 5. R2 represents a hydrocarbon group having 6 to 30 carbon atoms; A represents either an alkylene group or a substituted alkylene group which has 2 to 4 carbon atoms; and n is in the range of 0 to 1,000. X represents a hydrogen atom or an anionic hydrophilic group which is —(CH2)a—SO3M etc. R3 represents a hydrogen atom or methyl.Type: GrantFiled: September 18, 2012Date of Patent: June 28, 2016Assignee: DAI-ICHI KOGYO SEIYAKU CO., LTD.Inventors: Asako Ogasawara, Masayuki Hashimoto
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Publication number: 20160181616Abstract: A binder for an electrode of a lithium secondary battery contains a water dispersion of a polyurethane. The polyurethane has been formed of (A) a polyisocyanate, (B) a compound having two or more active hydrogen groups, (C) a compound having one or more active hydrogen groups and a hydrophilic group, and (D) a chain extending agent. The (B) compound having two or more active hydrogen groups contains an olefinic polyol and/or a carbonate diol having a carbon number between carbonate bond chains of less than 6. The binder has high adhesiveness to a collector, does not cause release in press molding, has high flexibility, and is excellent in bindability and resistance to an electrolytic solution.Type: ApplicationFiled: August 4, 2014Publication date: June 23, 2016Applicant: DAI-ICHI KOGYO SEIYAKU CO., LTD.Inventors: Katsuo TAKAHASHI, Shuichi ITO, Takeshi MIYAMURA
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Patent number: 9353195Abstract: An emulsifier for emulsion polymerization includes a compound represented by the following general: X=H, —(CH2)a—SO3M, —(CH2)b—COOM, —PO3M2, —P(B)O2M, or —CO—CH2—CH(SO3M)-COOM Y= Z=Type: GrantFiled: December 12, 2012Date of Patent: May 31, 2016Assignee: Dai-Ichi Kogyo Seiyaku Co., Ltd.Inventors: Asako Ogasawara, Masayuki Hashimoto
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Publication number: 20160137755Abstract: A reactive surfactant composition comprising one or more kinds of reactive surfactants is disclosed that may be used as an emulsifier for emulsion polymerization, a dispersant for suspension polymerization, a nonaqueous dispersant, or a resin modifier.Type: ApplicationFiled: June 19, 2014Publication date: May 19, 2016Applicant: DAI-ICHI KOGYO SEIYAKU CO., LTD.Inventor: Asako OGASAWARA
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Publication number: 20160075843Abstract: Provided is a flame-retardant foamable styrene resin composition having a high flame retardancy and thermal stability, and recyclable, with a small amount of a bromine-containing flame retardant added. A flame-retardant foamable styrene resin composition, containing (A) a styrene resin, (B) a bromine-containing organic compound, (C) zinc oxide, and (D) a foaming agent, in which an amount of (C) the zinc oxide added is less than 2 parts by weight per 100 parts by weight of (A) the styrene resin.Type: ApplicationFiled: April 25, 2014Publication date: March 17, 2016Applicant: DAI-ICHI KOGYO SEIYAKU CO., LTD.Inventors: Masahito NISHIURA, Hisanori SEMORI, Naomi TOYOSHIMA
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Publication number: 20160074306Abstract: A viscous composition of the present invention comprises specific cellulose fibers (A), (A?) and (A?) and the specific cellulose fibers (A), (A?) and (A?) are used with appropriate selection according to uses of a cosmetic composition, a gel-like composition and a spray composition. Therefore, in case where the composition is used as the cosmetic composition, a cosmetic composition which is excellent in shape retention ability and dispersion stability and excellent in water tolerance to satisfy the properties and the performance which is necessary for cosmetics is obtained. Additionally, in case where the composition is used as a gel-like composition, gel-state can be kept without separation or water release. Furthermore, in case where the composition is used as a spray composition, since it is possible to time-dependently keep stable gel state even if functional additives such as electrolytes, ionic substances, etc.Type: ApplicationFiled: November 24, 2015Publication date: March 17, 2016Applicant: DAI-ICHI KOGYO SEIYAKU CO., LTD.Inventors: Akira ISOGAI, Hideyuki SUMI, Yousuke GOI
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Publication number: 20160074305Abstract: A viscous composition of the present invention comprises specific cellulose fibers (A), (A?) and (A?) and the specific cellulose fibers (A), (A?) and (A?) are used with appropriate selection according to uses of a cosmetic composition, a gel-like composition and a spray composition. Therefore, in case where the composition is used as the cosmetic composition, a cosmetic composition which is excellent in shape retention ability and dispersion stability and excellent in water tolerance to satisfy the properties and the performance which is necessary for cosmetics is obtained. Additionally, in case where the composition is used as a gel-like composition, gel-state can be kept without separation or water release. Furthermore, in case where the composition is used as a spray composition, since it is possible to time-dependently keep stable gel state even if functional additives such as electrolytes, ionic substances, etc.Type: ApplicationFiled: November 24, 2015Publication date: March 17, 2016Applicant: DAI-ICHI KOGYO SEIYAKU CO., LTD.Inventors: Akira ISOGAI, Hideyuki SUMI, Yousuke GOI
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Patent number: 9249298Abstract: The polyurethane resin composition comprises a main agent (I) which comprises an urethane prepolymer (A) with an isocyanate group terminal and a hardener (II) which comprises an urethane prepolymer (B) with a hydroxyl group terminal, wherein the urethane prepolymer (B) with the hydroxyl group is a product of reaction between a polyol ingredient (a) comprising a castor oil-based polyol (a1) and a polyisocyanate (b) can inhibit the hollow fiber membranes from clogging, regardless of the kind thereof, when the composition is used as a binder for hollow fiber membranes.Type: GrantFiled: May 25, 2012Date of Patent: February 2, 2016Assignee: DAI-ICHI KOGYO SEIYAKU CO., LTD.Inventor: Masaharu Hirose
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Patent number: 9248090Abstract: A viscous composition of the present invention comprises specific cellulose fibers (A), (A?) and (A?) which are selected according to uses of a cosmetic composition, a gel-like composition and a spray composition. By using the composition of the present invention, a cosmetic composition which is excellent in shape retention ability and dispersion stability and excellent in water tolerance to satisfy the properties and the performance which is necessary for cosmetics; a gel-like composition wherein gel-state can be kept without separation or water release; and a spray composition wherein various functional additives which is necessary for the use is mixed without any problem can be obtained.Type: GrantFiled: January 22, 2010Date of Patent: February 2, 2016Assignee: DAI-ICHI KOGYO SEIYAKU CO., LTD.Inventors: Akira Isogai, Hideyuki Sumi, Yousuke Goi