Patents by Inventor Naoshi Kawamoto
Naoshi Kawamoto has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20130144020Abstract: Provided is a method of producing a stabilized polymer in which inhibition of polymerization of a monomer having an ethylenically unsaturated bond is suppressed even when a specific phenolic antioxidant is added before or during the polymerization of the monomer.Type: ApplicationFiled: August 18, 2011Publication date: June 6, 2013Applicant: ADEKA CORPORATIONInventors: Naoshi Kawamoto, Tsuyoshi Urushihara, Kohei Okamoto, Tetsuya Seguchi
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Patent number: 8420721Abstract: A polyolefin resin composition having a high crystallization temperature and excellent transparency is provided. The polyolefin resin composition comprises 0.01 to 10 parts by mass of a methylenebisanilide compound with respect to 100 parts by mass of a polyolefin resin, wherein the methylenebisanilide compound is represented by General Formula 1, wherein each of X1, X2, X3, X4, X5, X6, X7 and X8 independently represents a hydrogen atom or C1-C10 alkyl which is optionally substituted or branched; and each of R1 and R2 independently represents a hydrogen atom, C1-C21 alkyl which is optionally substituted or branched, C3-C12 cycloalkyl which is optionally substituted, or C6-C20 aryl which is optionally substituted.Type: GrantFiled: August 29, 2008Date of Patent: April 16, 2013Assignee: Adeka CorporationInventors: Tsuyoshi Urushihara, Naoto Ueda, Naoshi Kawamoto
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Publication number: 20120189793Abstract: Provided is a polyester resin composition comprising a sulfonamide compound as a nucleating agent, in which polyester resin composition coloring is inhibited. The polyester resin composition according to the present invention is a polyester resin composition comprising, with respect to 100 parts by mass of a polyester resin, 0.01 to 30 parts by mass of a phosphorus-based antioxidant (A) and 0.1 to 30 parts by mass of a sulfonamide compound metal salt (B), wherein the sulfonamide compound metal salt (B) has a water content of 0.1% to 20% based on the mass ratio with respect to the sulfonamide compound metal salt and not higher than 3% based on the mass ratio with respect to the polyester resin composition.Type: ApplicationFiled: September 24, 2010Publication date: July 26, 2012Applicant: ADEKA CORPORATIONInventors: Yota Tsuneizumi, Tsuyoshi Urushihara, Naoshi Kawamoto
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Publication number: 20120149838Abstract: Provided are a recycling method for industrially, simply and effectively recycling a phenolic body from a phenolic antioxidant which is masked by an organoaluminum compound and contained in an olefin polymer obtained by supplying the masked phenolic antioxidant upon polymerization; and an olefin polymer obtained by this method. In a method for recycling a phenolic antioxidant wherein a phenolic antioxidant which is masked by an organoaluminum compound and contained in an olefin polymer obtained by supplying the masked phenolic antioxidant upon polymerization is recycled to a phenolic body, a nitrogen gas comprising water and/or a proton donor at a volume ratio of 1.0×10?6 to 2.5×10?2 with respect to 1 volume of nitrogen is brought into contact with the olefin polymer.Type: ApplicationFiled: September 1, 2010Publication date: June 14, 2012Applicant: ADEKA CORPORATIONInventors: Naoshi Kawamoto, Takashi Ayabe, Tsuyoshi Urushihara, Kohei Okamoto, Tetsuya Seguchi
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Publication number: 20120022212Abstract: Provided is a polyolefin-based resin composition having sufficient stabilizing effect and excellent cost performance. The polyolefin-based resin composition according to the present invention comprises a polyolefin-based resin obtained by polymerization of an olefin-based monomer with an addition of a phenolic antioxidant represented by the following Formula (I): (wherein, R represents a C1-C30 alkyl group or C2-C30 alkylene group which is optionally branched and/or optionally has a cycloalkyl group, a C3-C12 cycloalkyl group which is optionally substituted or a C6-C18 aryl group which is optionally substituted), which phenolic antioxidant is masked with an organic aluminum compound, and a phosphorus-based antioxidant to a catalyst system or polymerization system before or during the polymerization of the olefin-based monomer, in which polyolefin-based resin composition, the phenolic antioxidant represented by the Formula (I) and the phosphorus-based antioxidant are added in an amount of 0.001 to 0.Type: ApplicationFiled: November 13, 2009Publication date: January 26, 2012Inventors: Takashi Ayabe, Kohei Okamoto, Tetsuya Seguchi, Naoshi Kawamoto
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Publication number: 20110288216Abstract: The present invention provides a stabilized polyolefin-based resin composition for use in food items, medical services and water service pipes, which has superior non-migratory and hygienic properties.Type: ApplicationFiled: November 13, 2009Publication date: November 24, 2011Inventors: Takashi Ayabe, Kohei Okamoto, Tetsuya Seguchi, Naoshi Kawamoto
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Patent number: 8058334Abstract: To provide a polyester resin composition having a high crystallization rate and excellent moldability. A polyester resin composition comprising (a) a polyester resin, (b) one or more sulfonamide compound metal salt having a structure represented by a general formula selected from the group consisting of the following general formula (1): the following general formula (2): and the following general formula (3): and (c) an aliphatic carboxylic acid diester compound of polyalkylene glycol represented by the following general formula (4): (in the formula (4), G represents an alkylene group having 2 to 4 carbon atoms; R4 and R5 each independently represent an alkyl or alkenyl group having 1 to 14 carbon atoms; and m represents a integral number of 2 to 30).Type: GrantFiled: August 9, 2007Date of Patent: November 15, 2011Assignee: Adeka CorporationInventors: Takahiro Horikoshi, Naoshi Kawamoto
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Patent number: 8017678Abstract: The present invention provides a polyester resin composition having an excellent crystallization rate. The polyester resin composition includes (a) a polyester resin containing (b) a sulfonamide compound metal salt which has a structure represented by the following general formula (1): (in the formula (1), R and R? each independently represent a hydrogen atom, a halogen atom, an alkali metal atom, an amino group, an alkyl group which has 1 to 10 carbon atoms and which may be branched or substituted, an alkoxy group which has 1 to 10 carbon atoms and which may be branched or substituted, or a cyclic group which has 3 to 30 carbon atoms and which may be substituted; R and R? may be bonded together to form a cyclic group; n represents a number of 1 or 2).Type: GrantFiled: April 13, 2007Date of Patent: September 13, 2011Assignee: Adeka CorporationInventors: Takahiro Horikoshi, Kazukiyo Nomura, Naoshi Kawamoto, Etsuo Tobita
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Publication number: 20110105657Abstract: Disclosed is a polyolefin resin composition which has an excellent transparency even when the polyolefin resin has a high melt flow rate (MFR). The polyolefin resin composition comprises a polyolefin resin having a melt flow rate (MFR) at 230° C. of 20 dg/min or more, (A) a dibenzylidene sorbitol compound represented by the following general formula (1), (wherein n represents an integer of 0 to 2; and R1, R2, R3, R4, and R5 each independently represent a hydrogen atom or the like) and (B) an alkali metal salt compound of organic phosphoric acid ester represented by the following general formula (2), (wherein R6 to R9 each independently represent a hydrogen atom or the like), and wherein the sum of the amount of the component (A) and the component (B) is 0.01 to 1.0 part by mass per 100 parts by mass of the polyolefin resin, and (A)/(B), the ratio (mass ratio) between the component (A) and the component (B), is within a range from 99/1 to 80/20.Type: ApplicationFiled: May 11, 2009Publication date: May 5, 2011Applicant: ADEKA CORPORATIONInventors: Naoko Tanji, Takahiro Horikoshi, Atsushi Sakai, Hiroshi Yamanoi, Naoshi Kawamoto
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Patent number: 7910643Abstract: A polylactic acid resin composition in which polylactic acid is blended with dibasic acid bis(benzoylhydrazide) represented by general formula (I) below; and a process for producing heat-resistant polylactic acid resin moldings, wherein after the polylactic acid resin composition is melted, the polylactic acid resin composition melted is filled in a die of a molding machine and molded accompanied with crystallization, in which the temperature of the die has been set in a range not higher than the initiation temperature of crystallization and not lower than the glass transition temperature determined with a differential scanning calorimeter (DSC).Type: GrantFiled: September 2, 2005Date of Patent: March 22, 2011Assignee: Adeka CorporationInventors: Etsuo Tobita, Naoshi Kawamoto, Tsuyoshi Urushihara, Hitoshi Saito, Hisashi Okuyama, Naomi Okuyama, legal representative, Takeshi Kanamori, Mitsuru Nakano, Hirotaka Okamoto
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Publication number: 20110065876Abstract: The invention relates to an aluminum phenoxide compound produced without using aromatic solvent and represented by general formula (I) below. A stabilized polymer can be produced by adding the aluminum phenoxide compound to a catalyst system or a polymerization system before or during polymerization. In the formula, A represents an alkyl group having 2 to 6 carbon atoms, a halogen atom, or methylaminoxane; B represents a hexadecyl group, a heptadecyl group, or an octadecyl group; l, m, and n represent numbers that satisfy expressions m?1, l?1, m+n=3, and l+n=3; when m or l exceeds 1, then A may be different from each other; and when the number of moles of aluminum is expressed as “t”, then t/n?1.3.Type: ApplicationFiled: May 25, 2009Publication date: March 17, 2011Applicant: ADEKA CORPORATIONInventors: Kohei Okamoto, Naoshi Kawamoto, Takashi Ayabe
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Publication number: 20100240815Abstract: A polyolefin resin composition having a high crystallization temperature and excellent transparency is provided. Disclosed is a polyolefin resin composition comprising 0.01 to 10 parts by mass of a methylenebisanilide compound with respect to 100 parts by mass of a polyolefin resin, which methylenebisanilide compound is represented by the following General Formula (1): (wherein each of X1, X2, X3, X4, X5, X6, X7 and X8 independently represents a hydrogen atom or C1-C10 alkyl which is optionally substituted or branched; and each of R1 and R2 independently represents a hydrogen atom, C1-C21 alkyl which is optionally substituted or branched, C3-C12 cycloalkyl which is optionally substituted, or C6-C20 aryl which is optionally substituted).Type: ApplicationFiled: August 29, 2008Publication date: September 23, 2010Inventors: Tsuyoshi Urushihara, Naoto Ueda, Naoshi Kawamoto
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Publication number: 20100174017Abstract: A polylactic acid resin composition in which polylactic acid is blended with dibasic acid bis(benzoylhydrazide) represented by general formula (I) below; and a process for producing heat-resistant polylactic acid resin moldings, wherein after the polylactic acid resin composition is melted, the polylactic acid resin composition melted is filled in a die of a molding machine and molded accompanied with crystallization, in which the temperature of the die has been set in a range not higher than the initiation temperature of crystallization and not lower than the glass transition temperature determined with a differential scanning calorimeter (DSC).Type: ApplicationFiled: September 2, 2005Publication date: July 8, 2010Applicant: ADEKA CORPORATIONInventors: Etsuo Tobita, Naoshi Kawamoto, Tsuyoshi Urushihara, Hitoshi Saito, Hisashi Okuyama, Naomi Okuyama, Takeshi Kanamori, Mitsuru Nakano, Hirotaka Okamoto
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Patent number: 7714046Abstract: The present invention provides a process for producing a crystal nucleator composition comprising; a first step pulverizing 95% by mass or more of a crystal nucleator ingredient containing one or two or more kinds of specific compounds to a primary particle diameter of 0.8 ?m or smaller with a dry medium-stirring type pulverizer; and a second step mixing and pulverizing the pulverized crystal nucleator ingredient obtained in the previous step and a metal aliphatic carboxylate ingredient containing one or two or more kinds of specific metal aliphatic carboxylates.Type: GrantFiled: August 24, 2006Date of Patent: May 11, 2010Assignee: Adeka CorporationInventors: Manabu Ishii, Naoshi Kawamoto, Etsuo Tobita
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Publication number: 20100113710Abstract: To provide a polyester resin composition having a high crystallization rate and excellent moldability. A polyester resin composition comprising (a) a polyester resin, (b) one or more sulfonamide compound metal salt having a structure represented by a general formula selected from the group consisting of the following general formula (1): the following general formula (2): and the following general formula (3): and (c) an aliphatic carboxylic acid diester compound of polyalkylene glycol represented by the following general formula (4): (in the formula (4), G represents an alkylene group having 2 to 4 carbon atoms; R4 and R5 each independently represent an alkyl or alkenyl group having 1 to 14 carbon atoms; and m represents a integral number of 2 to 30).Type: ApplicationFiled: August 9, 2007Publication date: May 6, 2010Applicant: ADEKA CORPORATIONInventors: Takahiro Horikoshi, Naoshi Kawamoto
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Patent number: 7662893Abstract: A method for producing a stabilized polymer comprising adding at least one kind of a phenolic antioxidant masked with an organic aluminum and represented by general formula (I) in a catalyst system or a polymerization system, before or during polymerization, on gas-phase polymerization of a monomer having an ethylenic unsaturated bonding, wherein R1 and R2, each is independently a hydrogen atom, an alkyl group having 1 to 9 carbon atoms, a cycloalkyl group or an arylalkyl group; X is an alkylene group having 1 to 8 carbon atoms; R3 is a hydrogen atom or an alkyl group having 1 to 8 carbon atoms; and R4 is an alkyl group having 1 to 30 carbon atoms.Type: GrantFiled: March 6, 2006Date of Patent: February 16, 2010Assignee: Adeka CorporationInventors: Etsuo Tobita, Naoshi Kawamoto, Takahiro Horikoshi
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Publication number: 20090176913Abstract: The present invention provides a polyester resin composition having an excellent crystallization rate. The polyester resin composition includes (a) a polyester resin containing (b) a sulfonamide compound metal salt which has a structure represented by the following general formula (1): (in the formula (1), R and R? each independently represent a hydrogen atom, a halogen atom, an alkali metal atom, an amino group, an alkyl group which has 1 to 10 carbon atoms and which may be branched or substituted, an alkoxy group which has 1 to 10 carbon atoms and which may be branched or substituted, or a cyclic group which has 3 to 30 carbon atoms and which may be substituted; R and R? may be bonded together to form a cyclic group; n represents a number of 1 or 2).Type: ApplicationFiled: April 13, 2007Publication date: July 9, 2009Applicant: ADEKA CORPORATIONInventors: Takahiro Horikoshi, Kazukiyo Nomura, Naoshi Kawamoto, Etsuo Tobita
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Publication number: 20090156744Abstract: The present invention provides a process for producing a crystal nucleator composition comprising; a first step pulverizing 95% by mass or more of a crystal nucleator ingredient containing one or two or more kinds of specific compounds to a primary particle diameter of 0.8 ?m or smaller with a dry medium-stirring type pulverizer; and a second step mixing and pulverizing the pulverized crystal nucleator ingredient obtained in the previous step and a metal aliphatic carboxylate ingredient containing one or two or more kinds of specific metal aliphatic carboxylates.Type: ApplicationFiled: August 24, 2006Publication date: June 18, 2009Inventors: Manabu Ishii, Naoshi Kawamoto, Etsuo Tobita
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Patent number: 7442735Abstract: A crystal nucleating agent composition comprising 100 mass parts of a crystal nucleating agent compound represented by the following general formula (I), -50 mass parts of a lithium salt of an organic fatty acid represented by the following general formula (II), and 5-50 mass parts of a metal salt of an organic fatty acid represented by the following general formula (III): (in the formula R1 and R2 are alkyl groups having 1-4 carbon atoms, R3 is a hydrogen atom or an alkyl group having 1-4 carbon atoms, R4, R5 are groups derived from an organic fatty acid having 10-30 carbon atoms, and M is a divalent metal atom).Type: GrantFiled: July 30, 2004Date of Patent: October 28, 2008Assignee: Asahi Denka Co., Ltd.Inventors: Etsuo Tobita, Kazukiyo Nomura, Naoshi Kawamoto
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Publication number: 20080214752Abstract: A method for producing a stabilized polymer comprising adding at least one kind of a phenolic antioxidant masked with an organic aluminum and represented by general formula (I) in a catalyst system or a polymerization system, before or during polymerization, on gas-phase polymerization of a monomer having an ethylenic unsaturated bonding, wherein R1 and R2, each is independently a hydrogen atom, an alkyl group having 1 to 9 carbon atoms, a cycloalkyl group or an arylalkyl group; X is an alkylene group having 1 to 8 carbon atoms; R3 is a hydrogen atom or an alkyl group having 1 to 8 carbon atoms; and R4 is an alkyl group having 1 to 30 carbon atoms.Type: ApplicationFiled: March 6, 2006Publication date: September 4, 2008Applicant: ADEKA CORPORATIONInventors: Etsuo Tobita, Naoshi Kawamoto, Takahiro Horikoshi