Patents by Inventor Tetsuya Seguchi
Tetsuya Seguchi 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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Patent number: 9580580Abstract: Provided is a cellulose ester-based resin composition having excellent processability, resistance to coloration caused by processing and flame retardancy. Also provided is a molded article having excellent color tone and flame retardancy. The cellulose ester-based resin composition of the present invention is characterized by comprising 1 to 50 parts by mass of a phosphate represented by the following Formula (1) with respect to 100 parts by mass of a cellulose ester-based resin: (wherein, R1 and R2 each independently represent a hydrogen atom or a methyl group; and n represents an integer of 1 to 5).Type: GrantFiled: June 5, 2013Date of Patent: February 28, 2017Assignee: ADEKA CORPORATIONInventors: Takashi Ayabe, Yuki Endo, Tetsuya Seguchi
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Patent number: 9447200Abstract: 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: GrantFiled: August 18, 2011Date of Patent: September 20, 2016Assignee: ADEKA CORPORATIONInventors: Naoshi Kawamoto, Tsuyoshi Urushihara, Kohei Okamoto, Tetsuya Seguchi
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Publication number: 20160251497Abstract: Provided is a method of producing a stabilized polymer by which, while imparting sufficient stabilizing effect to the polymer of a monomer having an ethylenically unsaturated bond, the amount of residual solvent in the polymer can be reduced and the occurrence of foaming can be inhibited. The method of producing a stabilized polymer comprises the step of adding an antioxidant having a melting point of 70° C. or lower to a catalyst system or a polymerization system before or during polymerization of a monomer having an ethylenically unsaturated bond such that 0.005 to 0.5 parts by mass of the antioxidant is incorporated with respect to 100 parts by mass of a polymer obtained by the polymerization of the monomer having an ethylenically unsaturated bond.Type: ApplicationFiled: October 20, 2014Publication date: September 1, 2016Applicant: ADEKA CORPORATIONInventors: Naoshi KAWAMOTO, Atsushi SAKAI, Tetsuya SEGUCHI, Kenji YAMAZAKI
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Publication number: 20160244592Abstract: A substrate excellent in weatherability and adhesion to a coating applied thereon is provided. The substrate contains (a) 100 parts by mass of a polyolefin resin, (b) 0.01 to 0.5 parts by mass of an aromatic phosphoric ester metal salt having general formula (1), and (c) 0.02 to 0.5 parts by mass of a hindered amine compound, preferably a compound having general formula (2), and optionally preferably (d) 0.02 to 0.5 parts by mass of a benzoate light stabilizer having general formula (4). The structures of general formulae (1), (2), and (4) are as defined in the description.Type: ApplicationFiled: November 10, 2014Publication date: August 25, 2016Inventors: Naoshi KAWAMOTO, Takahiro HORIKOSHI, Yusuke IWASAKI, Tetsuya SEGUCHI
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Patent number: 9243127Abstract: Provided is a method of producing a nucleator masterbatch, by which a nucleator masterbatch capable of improving the transparency and the physical properties of an olefin resin can be produced. This method is a method of producing a masterbatch in which a nucleator is blended in an olefin polymer, the method being characterized by comprising the step of polymerizing an olefin monomer with incorporation of a nucleator component, which is dissolved in an organoaluminum compound or in an organoaluminum compound and an organic solvent, before or during polymerization of the olefin monomer such that the nucleator component is blended in an amount of 0.05 to 20 parts by mass with respect to 100 parts by mass of the olefin polymer obtained by the polymerization of the olefin monomer.Type: GrantFiled: May 30, 2013Date of Patent: January 26, 2016Assignee: ADEKA CORPORATIONInventors: Naoshi Kawamoto, Takashi Ayabe, Atsushi Sakai, Tetsuya Seguchi
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Publication number: 20150183967Abstract: Provided is a cellulose ester-based resin composition having excellent processability, resistance to coloration caused by processing and flame retardancy. Also provided is a molded article having excellent color tone and flame retardancy. The cellulose ester-based resin composition of the present invention is characterized by comprising 1 to 50 parts by mass of a phosphate represented by the following Formula (1) with respect to 100 parts by mass of a cellulose ester-based resin: (wherein, R1 and R2 each independently represent a hydrogen atom or a methyl group; and n represents an integer of 1 to 5).Type: ApplicationFiled: June 5, 2013Publication date: July 2, 2015Applicant: ADEKA CORPORATIONInventors: Takashi Ayabe, Yuki Endo, Tetsuya Seguchi
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Publication number: 20150152248Abstract: Provided is a method of producing a nucleator masterbatch, by which a nucleator masterbatch capable of improving the transparency and the physical properties of an olefin resin can be produced. This method is a method of producing a masterbatch in which a nucleator is blended in an olefin polymer, the method being characterized by comprising the step of polymerizing an olefin monomer with incorporation of a nucleator component, which is dissolved in an organoaluminum compound or in an organoaluminum compound and an organic solvent, before or during polymerization of the olefin monomer such that the nucleator component is blended in an amount of 0.05 to 20 parts by mass with respect to 100 parts by mass of the olefin polymer obtained by the polymerization of the olefin monomer.Type: ApplicationFiled: May 30, 2013Publication date: June 4, 2015Applicant: ADEKA CORPORATIONInventors: Naoshi Kawamoto, Takashi Ayabe, Atsushi Sakai, Tetsuya Seguchi
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Publication number: 20150065649Abstract: The present invention provides a method capable of producing an olefin resin composition for a home electric appliance materials and automotive interior materials that has good color tone and shows excellent fogging resistance, in which method the total amount of stabilizer(s) to be added is reduced and cost reduction can thus be attained. The method of producing an olefin resin composition for an automotive interior material by polymerization of an olefin monomer according to the present invention is characterized by comprising the step of adding, before or during the polymerization of an olefin monomer, 0.001 to 0.Type: ApplicationFiled: February 15, 2013Publication date: March 5, 2015Applicant: ADEKA CORPORATIONInventors: Naoshi Kawamoto, Tsuyoshi Urushihara, Kohei Okamoto, Tetsuya Seguchi
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Publication number: 20140364563Abstract: The present invention provides a method of producing an olefin resin composition by which an olefin resin composition in which reduction in the physical properties and occurrence of yellowing after a sterilization treatment by irradiation with radiation are suppressed can be produced. The method of producing an olefin resin composition according to the present invention is a method of producing an olefin resin composition for a molded article to be used after a sterilization treatment by irradiation with radiation, the method comprising: blending, before or during polymerization of an olefin monomer, a phenolic antioxidant, which is represented by the following Formula (1) and masked with an organoaluminum compound, in an amount of 0.001 to 0.5 parts by mass with respect to 100 parts by mass of an olefin resin obtained by the polymerization; and blending, at any one point of before, during or after the polymerization of the olefin monomer, a phosphorus-based antioxidant in an amount of 0.Type: ApplicationFiled: December 7, 2012Publication date: December 11, 2014Inventors: Naoshi Kawamoto, Tsuyoshi Urushihara, Tetsuya Seguchi, Kohei Okamoto
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Publication number: 20140275414Abstract: 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: June 2, 2014Publication date: September 18, 2014Applicant: ADEKA CORPORATIONInventors: Naoshi KAWAMOTO, Takashi AYABE, Tsuyoshi URUSHIHARA, Kohei OKAMOTO, Tetsuya SEGUCHI
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Patent number: 8779015Abstract: 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: GrantFiled: September 1, 2010Date of Patent: July 15, 2014Assignee: Adeka CorporationInventors: Naoshi Kawamoto, Tsuyoshi Urushihara, Kohei Okamoto, Tetsuya Seguchi
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Publication number: 20130331515Abstract: Provided is a method of producing a laminate film by which a laminate film having excellent adhesion with a laminate base material, in which laminate film the amount of elution of an additive into a solvent is small, can be produced. The method of producing a laminate film is characterized by comprising the step of adding, before or during polymerization of a monomer having an ethylenically unsaturated bond, a phenolic antioxidant represented by the following Formula (1), which is masked with an organoaluminum compound, to at least one of a catalyst system, a polymerization system and a piping, such that the phenolic antioxidant is incorporated in an amount of 0.001 to 0.Type: ApplicationFiled: February 8, 2012Publication date: December 12, 2013Applicant: ADEKA CORPORATIONInventors: Naoshi Kawamoto, Tsuyoshi Urushihara, Kohei Okamoto, Tetsuya Seguchi
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Publication number: 20130237114Abstract: The present invention provides a method of producing a nonwoven fabric, which is capable of producing a nonwoven fabric showing limited elution of its additives into a solvent. More specifically, the present invention provides a method of producing a nonwoven fabric from at least one polyolefin, which is characterized by using a polyolefin obtained by polymerization of a monomer having an ethylenically unsaturated bond with an addition of 0.001 to 0.03 parts by mass of a phenolic antioxidant represented by the following Formula (1), which is masked with an organoaluminum, and 0.001 to 0.04 parts by mass of a phosphorus-based antioxidant with respect to 100 parts by mass of the monomer having an ethylenically unsaturated bond, the addition being made to a catalyst system, a polymerization system or a piping before or during the polymerization of the monomer.Type: ApplicationFiled: November 10, 2011Publication date: September 12, 2013Applicant: ADEKA CORPORATIONInventors: Naoshi Kawamoto, Tsuyoshi Urushihara, Kohei Okamoto, Tetsuya Seguchi
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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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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