Patents by Inventor Toshitaka Yoshitake
Toshitaka Yoshitake 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: 11958931Abstract: A flame-retardant urethane resin composition comprises a polyisocyanate compound, a polyol compound, a trimerization catalyst, a foaming agent, a foam stabilizer, and an additive, in which the trimerization catalyst is at least one selected from the group consisting of a nitrogen-containing aromatic compound, a carboxylic acid alkali metal salt, a tertiary ammonium salt, and a quaternary ammonium salt, and the additive comprises red phosphorus and at least one selected from the group consisting of a phosphoric acid ester, a phosphate-containing flame retardant, a bromine-containing flame retardant, a boron-containing flame retardant, an antimony-containing flame retardant, and a metal hydroxide.Type: GrantFiled: April 28, 2020Date of Patent: April 16, 2024Assignee: SEKISUI CHEMICAL CO., LTD.Inventors: Taichi Makida, Toshitaka Yoshitake, Yousuke Okada, Takehiko Ushimi
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Publication number: 20200255576Abstract: A flame-retardant urethane resin composition comprises a polyisocyanate compound, a polyol compound, a trimerization catalyst, a foaming agent, a foam stabilizer, and an additive, in which the trimerization catalyst is at least one selected from the group consisting of a nitrogen-containing aromatic compound, a carboxylic acid alkali metal salt, a tertiary ammonium salt, and a quaternary ammonium salt, and the additive comprises red phosphorus and at least one selected from the group consisting of a phosphoric acid ester, a phosphate-containing flame retardant, a bromine-containing flame retardant, a boron-containing flame retardant, an antimony-containing flame retardant, and a metal hydroxide.Type: ApplicationFiled: April 28, 2020Publication date: August 13, 2020Applicant: SEKISUI CHEMICAL CO., LTD.Inventors: Taichi Makida, Toshitaka Yoshitake, Yousuke Okada, Takehiko Ushimi
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Patent number: 10676559Abstract: A flame-retardant urethane resin composition comprises a polyisocyanate compound, a polyol compound, a trimerization catalyst, a foaming agent, a foam stabilizer, and an additive, in which the trimerization catalyst is at least one selected from the group consisting of a nitrogen-containing aromatic compound, a carboxylic acid alkali metal salt, a tertiary ammonium salt, and a quaternary ammonium salt, and the additive comprises red phosphorus and at least one selected from the group consisting of a phosphoric acid ester, a phosphate-containing flame retardant, a bromine-containing flame retardant, a boron-containing flame retardant, an antimony-containing flame retardant, and a metal hydroxide.Type: GrantFiled: July 20, 2015Date of Patent: June 9, 2020Assignee: SEKISUI CHEMICAL CO., LTD.Inventors: Taichi Makida, Toshitaka Yoshitake, Yousuke Okada, Takehiko Ushimi
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Patent number: 10633480Abstract: The flame-retardant urethane resin composition contains a polyisocyanate compound, a polyol compound, a trimerization catalyst, a blowing agent, and an additive, wherein the additives include red phosphorus and a filler, and the filler has an aspect ratio of 5 to 50, an average particle diameter of 0.1 ?m or larger, but smaller than 15 ?m, and a melting point of 750° C. or higher.Type: GrantFiled: September 25, 2015Date of Patent: April 28, 2020Assignee: SEKISUI CHEMICAL CO., LTD.Inventors: Yousuke Okada, Kazuhiro Okada, Takehiko Ushimi, Yasunari Kusaka, Toshitaka Yoshitake
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Patent number: 10287420Abstract: A thermally expandable resin composition containing an epoxy resin, a thermally expandable graphite, and an inorganic filler excluding graphite. The epoxy resin contains a bisphenol-type epoxy compound and an aliphatic epoxy compound, wherein the weight ratio of the bisphenol-type epoxy compound to the aliphatic epoxy compound is in the range 95:5-60:40.Type: GrantFiled: October 10, 2013Date of Patent: May 14, 2019Assignee: SEKISUI CHEMICAL CO., LTD.Inventors: Toshitaka Yoshitake, Masaki Tono, Kenji Otsuka, Hideaki Yano
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Patent number: 9994693Abstract: A thermally expandable resin composition containing an epoxy resin, a thermally expandable graphite, and an inorganic filler excluding graphite. The epoxy compound contained in said epoxy resin contains a brominated epoxy compound, and contains, in addition to the brominated epoxy compound, a bisphenol-type epoxy compound and/or an aliphatic epoxy compound, wherein the weight ratio of the brominated epoxy compound to the bisphenol-type epoxy compound and/or aliphatic epoxy compound is in the range 99:1-1:99.Type: GrantFiled: October 10, 2013Date of Patent: June 12, 2018Assignee: SEKISUI CHEMICAL CO., LTD.Inventors: Toshitaka Yoshitake, Masaki Tono, Kenji Otsuka, Hideaki Yano
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Publication number: 20170298170Abstract: The flame-retardant urethane resin composition contains a polyisocyanate compound, a polyol compound, a trimerization catalyst, a blowing agent, and an additive, wherein the additives include red phosphorus and a filler, and the filler has an aspect ratio of 5 to 50, an average particle diameter of 0.1 ?m or larger, but smaller than 15 ?m, and a melting point of 750° C. or higher.Type: ApplicationFiled: September 25, 2015Publication date: October 19, 2017Applicant: SEKISUI CHEMICAL CO., LTD.Inventors: Yousuke OKADA, Kazuhiro OKADA, Takehiko USHIMI, Yasunari KUSAKA, Toshitaka YOSHITAKE
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Publication number: 20150322195Abstract: A flame-retardant urethane resin composition comprises a polyisocyanate compound, a polyol compound, a trimerization catalyst, a foaming agent, a foam stabilizer, and an additive, in which the trimerization catalyst is at least one selected from the group consisting of a nitrogen-containing aromatic compound, a carboxylic acid alkali metal salt, a tertiary ammonium salt, and a quaternary ammonium salt, and the additive comprises red phosphorus and at least one selected from the group consisting of a phosphoric acid ester, a phosphate-containing flame retardant, a bromine-containing flame retardant, a boron-containing flame retardant, an antimony-containing flame retardant, and a metal hydroxide.Type: ApplicationFiled: July 20, 2015Publication date: November 12, 2015Applicant: Sekisui Chemical Co., Ltd.Inventors: Taichi Makida, Toshitaka Yoshitake, Yousuke Okada, Takehiko Ushimi
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Publication number: 20150291773Abstract: A thermally expandable resin composition containing an epoxy resin, a thermally expandable graphite, and an inorganic filler excluding graphite. The epoxy resin contains a bisphenol-type epoxy compound and an aliphatic epoxy compound, wherein the weight ratio of the bisphenol-type epoxy compound to the aliphatic epoxy compound is in the range 95:5-60:40.Type: ApplicationFiled: October 10, 2013Publication date: October 15, 2015Applicant: SEKISUI CHEMICAL CO., LTD.Inventors: Toshitaka Yoshitake, Masaki Tono, Kenji Otsuka, Hideaki Yano
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Publication number: 20150284525Abstract: A thermally expandable resin composition containing an epoxy resin, a thermally expandable graphite, and an inorganic filler excluding graphite. The epoxy compound contained in said epoxy resin contains a brominated epoxy compound, and contains, in addition to the brominated epoxy compound, a bisphenol-type epoxy compound and/or an aliphatic epoxy compound, wherein the weight ratio of the brominated epoxy compound to the bisphenol-type epoxy compound and/or aliphatic epoxy compound is in the range 99:1-1:99.Type: ApplicationFiled: October 10, 2013Publication date: October 8, 2015Applicant: SEKISUI CHEMICAL CO., LTD.Inventors: Toshitaka Yoshitake, Masaki Tono, Kenji Otsuka, Hideaki Yano
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Patent number: 8287778Abstract: A synthetic resin composition containing, 100 parts by mass of a synthetic resin, 0.001-10 parts by mass of a triazine compound represented by (1) below, and 0.001-10 parts by mass of a diarylpentaerythritol diphosphite compound represented by general formula (2) shown below and/or 0.001-10 parts by mass of an organic cyclic phosphite compound represented by formula (3) below and/or 0.001-10 parts by mass of a hindered phenol compound represented by formula (4) below. In formula (1), R1 is C1-C12 alkyl group, etc.; R2 is C1-C8 alkyl group, etc.; R3 is hydroxyl group, etc.; and R4 is —O—R1, etc. In formula (2), R5 is C1-C4 alkyl group, etc. In formula (3), R6 and R8 is each C1-C4 alkyl group, etc, and R7 is C1-C18 alkyl group. In formula (4), R9 is a residue remaining after removing n hydroxyl groups from a mono- to tetravalent alcohol, and n is an integer 1-4.Type: GrantFiled: February 1, 2010Date of Patent: October 16, 2012Assignee: Adeka CorporationInventors: Mitsuru Fukushima, Toshitaka Yoshitake, Tetsuo Kamimoto, Toshio Nakajima
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Publication number: 20110272648Abstract: A synthetic resin composition is obtained by mixing, to 100 parts by mass of a synthetic resin, 0.001-10 parts by mass of a triazine-based compound represented by general formula (1), 0.001-10 parts by mass of a diaryl pentaerythritol diphosphite compound represented by general formula (2), and/or 0.001-10 parts by mass of an organic cyclic phosphite compound represented by general formula (3), and/or 0.001-10 parts by mass of a hindered phenolic compound represented by general formula (4). (In formula (1), R1 represents an alkyl group having 1-12 carbon atoms, R2 represents an alkyl group having 1-8 carbon atoms, R3 represents a hydroxy group, and R4 represents —O—R1. In formula (2), R5 represents an alkyl group having 1-4 carbon atoms. In formula (3), R5 and R8 represent an alkyl group having 1-4 carbon atoms, and R7 represents an alkyl group having 1-18 carbon atoms.Type: ApplicationFiled: February 1, 2010Publication date: November 10, 2011Applicant: ADEKA CORPORATIONInventors: Mitsuru Fukushima, Toshitaka Yoshitake, Tetsuo Kamimoto, Toshio Nakajima