Patents by Inventor Takehiko Ushimi
Takehiko Ushimi 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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Patent number: 11945928Abstract: Provided are a polyol composition in which hard caking does not occur when stored for a long period of time, and a polyurethane foam using the same. The polyol composition comprises a polyol compound, a foaming agent, a filler, and a metal oxide fine particle, the foaming agent including a hydrofluoroolefin, and the metal oxide fine particle having a count number ratio of OH ions of a metal constituting the metal oxide fine particle with respect to a total count number of all ions measured using time-of-flight secondary ion mass spectrometry of 0.1 or less.Type: GrantFiled: October 17, 2019Date of Patent: April 2, 2024Assignee: SEKISUI CHEMICAL CO., LTD.Inventors: Takehiko Ushimi, Kazuhiro Okada, Masako Okamoto
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Publication number: 20240001315Abstract: The mixing system includes a first container filled with a polyol composition, a second container filled with an isocyanate composition, and a stationary mixer configured to mix the polyol composition discharged from the first container and the isocyanate composition discharged from the second container. The polyol composition includes a polyol, a catalyst, and a low boiling point compound having a boiling point of less than 0° C. The isocyanate composition includes an isocyanate compound and a low boiling point compound having a boiling point of less than 0° C. The first container and the second container each have an internal pressure in a range of 0.3 to 1.0 MPa at 35° C., and a mixer portion of the stationary mixer has a length of 30 to 230 mm. A mixing system can be provided that enhances the mixability of a polyol composition and a polyisocyanate composition in a stationary mixer and prevents curing in the stationary mixer.Type: ApplicationFiled: September 29, 2021Publication date: January 4, 2024Inventors: Yuu KAKIMOTO, Takehiko USHIMI, Nobuo MATSUKI
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Publication number: 20210355292Abstract: Provided are a polyol composition in which hard caking does not occur when stored for a long period of time, and a polyurethane foam using the same. The polyol composition comprises a polyol compound, a foaming agent, a filler, and a metal oxide fine particle, the foaming agent including a hydrofluoroolefin, and the metal oxide fine particle having a count number ratio of OH ions of a metal constituting the metal oxide fine particle with respect to a total count number of all ions measured using time-of-flight secondary ion mass spectrometry of 0.1 or less.Type: ApplicationFiled: October 17, 2019Publication date: November 18, 2021Applicant: SEKISUI CHEMICAL CO., LTD.Inventors: Takehiko USHIMI, Kazuhiro OKADA, Masako OKAMOTO
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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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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: 20160245451Abstract: The fire-resistant heat-insulating coating material (3) for a pipe (2) comprises a foamed polyurethane heat-insulating layer comprising a flame-retardant urethane composition containing a polyisocyanate, a polyol, a trimerization catalyst, a foaming agent, a foam stabilizer, and additives, the additives comprising red phosphorus and at least one member selected from the group consisting of phosphoric acid esters, phosphate-containing flame retardants, bromine-containing flame retardants, boron-containing flame retardants, antimony-containing flame retardants, metal hydroxides, and needle-shaped fillers.Type: ApplicationFiled: February 27, 2015Publication date: August 25, 2016Applicant: SEKISUI CHEMICAL CO., LTD.Inventors: Kazuhiro OKADA, Yousuke OKADA, Takehiko USHIMI
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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