Patents by Inventor Takuya SHIMOHARAI
Takuya SHIMOHARAI 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: 11795298Abstract: The polyester resin composition includes: a polyester resin A containing 82 to 88 mass % of a polybutylene terephthalate resin and 12 to 18 mass % of a polyethylene terephthalate resin; a metal organic acid salt B that is either one or both of an alkali metal organic acid salt and an alkaline earth metal organic acid salt; and an inorganic filler C having an average particle diameter of 0.05 to 3 ?m in an amount of 1 to 13 parts by mass based on 100 parts by mass of the polyester resin A, wherein the polyester resin composition includes either one or both of alkali metal atoms and alkaline earth metal atoms in an amount of 0.000005 to 0.05 parts by mass based on 100 parts by mass of the polyester resin A, and a content of linear oligomers of polybutylene terephthalate or the like is not more than 1000 mg/kg.Type: GrantFiled: March 25, 2019Date of Patent: October 24, 2023Assignee: TOYOBO MC CORPORATIONInventors: Kaori Furukawa, Takahiro Shimizu, Takuya Shimoharai
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Patent number: 11713392Abstract: A polyester resin composition contains a polyester resin A containing 50 to 100 mass % of a polybutylene terephthalate resin and 0 to 50 mass % of a polyethylene terephthalate resin. The polyester resin composition further contains a predetermined amount of a metal organic acid salt B, which is either or both of an alkali metal organic acid salt and an alkaline earth metal organic acid salt; a predetermined amount of a styrenic resin C; and a predetermined amount of an inorganic filler D. The amount of linear oligomers of polybutylene terephthalate or the amount of the linear oligomers of polybutylene terephthalate and linear oligomers of polyethylene terephthalate is less than or equal to 1000 mg/kg. Inorganic filler D has an average particle size of 0.05 to 3 ?m.Type: GrantFiled: January 26, 2018Date of Patent: August 1, 2023Assignee: TOYOBO CO., LTD.Inventors: Takuya Shimoharai, Yasuto Fujii, Takahiro Shimizu
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Publication number: 20220186022Abstract: The present invention relates to a reinforced thermoplastic polyester resin composition comprising 20 to 35 parts by mass of a polybutylene terephthalate resin (A), 1 to 10 parts by mass of a polyethylene terephthalate resin (B), and 1 to 10 parts by mass of a copolymerized polybutylene terephthalate resin (C), 5 to 12 parts by mass of a copolymerized polyethylene terephthalate resin (D), 1 to 6 parts by mass of a polycarbonate resin (E), 45 to 60 parts by mass of a fiber reinforcing material (F), and 0.05 to 2 parts by mass of a transesterification inhibitor (G), based on 100 parts by mass in total of components (A), (B), (C), (D), (E) and (F), which can stably form a molding having high rigidity and high strength, and having few appearance defects, and a regular uniform textured appearance, under a wide range of molding conditions.Type: ApplicationFiled: March 25, 2020Publication date: June 16, 2022Applicant: TOYOBO CO., LTD.Inventors: Takahiro SHIMIZU, Takuya SHIMOHARAI
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Publication number: 20220153925Abstract: The present invention relates to a polybutylene terephthalate resin composition having excellent heat resistance properties and high toughness, comprising 85 to 99.5 parts by mass of a polybutylene terephthalate resin (A) having an intrinsic viscosity (IV) of 1.0 to 1.3 dl/g, 0 to 13 parts by mass of a polyester elastomer (B ), and 0.05 to 2 parts by mass of a talc (C) having an average particle size of 5 ?m or less, based on 100 parts by mass in total of components (A), (B) and (C), wherein in the case where the polyester elastomer (B) is contained, the mass ratio of hard segment/soft segment constituting the polyester elastomer (B) is 85/15 to 50/50.Type: ApplicationFiled: February 21, 2020Publication date: May 19, 2022Applicant: TOYOBO CO., LTD.Inventors: Takuya SHIMOHARAI, Wenli PENG
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Publication number: 20220098362Abstract: The present invention relates to a polybutylene terephthalate resin composition comprising 70 to 97 parts by mass of a polybutylene terephthalate resin (A) having an intrinsic viscosity (IV) of 0.60 to 0.95 dl/g, 2 to 15 parts by mass of a modified olefin resin (B), and 1 to 15 parts by mass of a polyester elastomer (C), based on 100 parts by mass of components (A), (B) and (C) in total, and preferably further comprising 0.05 to 1.5 parts by mass of a carbodiimide compound (D). The polybutylene terephthalate resin composition has excellent impact properties and high fluidity.Type: ApplicationFiled: February 5, 2020Publication date: March 31, 2022Applicant: TOYOBO CO., LTD.Inventors: Motonobu KAMIYA, Yasuto FUJII, Takuya SHIMOHARAI
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Patent number: 11001705Abstract: A polyester resin composition includes a polyester resin A containing 70 to 100% by mass of a polybutylene terephthalate resin and 0 to 30% by mass of a polyethylene terephthalate resin, and includes a metal organic acid salt B that is either one or both of an alkali metal organic acid salt and an alkaline earth metal organic acid salt and a predetermined amount of a polyfunctional glycidyl group-containing styrene-based polymer C, and the polyester resin composition contains either one or both of alkali metal atoms and alkaline earth metal atoms in a predetermined amount based on 100 parts by mass of the polyester resin A, and further, the content of linear oligomers of polybutylene terephthalate or the content of the linear oligomers of polybutylene terephthalate and the linear oligomers of polyethylene terephthalate is less than or equal to 1000 mg/kg.Type: GrantFiled: December 21, 2016Date of Patent: May 11, 2021Assignee: TOYOBO CO., LTD.Inventors: Takuya Shimoharai, Satoru Horiguchi, Junichi Yasui
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Patent number: 11001706Abstract: A polyester resin composition contains a polyester resin A containing 70 to 100 mass % of a polybutylene terephthalate resin and 0 to 30 mass % of a polyethylene terephthalate resin. The polyester resin composition further contains a metal organic acid salt B, which is either or both of an alkali metal organic acid salt and an alkaline earth metal organic acid salt, and a predetermined amount of a styrenic resin C. The polyester resin composition contains a predetermined amount of either or both of an alkali metal atom and an alkaline earth metal atom relative to 100 parts by mass of the polyester resin A. In the polyester resin composition, the amount of linear oligomers of polybutylene terephthalate or the amount of the linear oligomers of polybutylene terephthalate and linear oligomers of polyethylene terephthalate is less than or equal to 1000 mg/kg.Type: GrantFiled: January 26, 2018Date of Patent: May 11, 2021Assignee: TOYOBO CO., LTD.Inventors: Takuya Shimoharai, Satoru Horiguchi
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Publication number: 20210047499Abstract: The polyester resin composition includes: a polyester resin A containing 82 to 88 mass % of a polybutylene terephthalate resin and 12 to 18 mass % of a polyethylene terephthalate resin; a metal organic acid salt B that is either one or both of an alkali metal organic acid salt and an alkaline earth metal organic acid salt; and an inorganic filler C having an average particle diameter of 0.05 to 3 ?m in an amount of 1 to 13 parts by mass based on 100 parts by mass of the polyester resin A, wherein the polyester resin composition includes either one or both of alkali metal atoms and alkaline earth metal atoms in an amount of 0.000005 to 0.05 parts by mass based on 100 parts by mass of the polyester resin A, and a content of linear oligomers of polybutylene terephthalate or the like is not more than 1000 mg/kg.Type: ApplicationFiled: March 25, 2019Publication date: February 18, 2021Applicant: TOYOBO CO., LTD.Inventors: Kaori FURUKAWA, Takahiro SHIMIZU, Takuya SHIMOHARAI
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Publication number: 20210002477Abstract: Disclosed is an inorganic reinforced thermoplastic polyester resin composition that does not lose the characteristics of a polyester resin, that maintains an excellent surface appearance while having high strength and high stiffness in a formulation containing an inorganic reinforcing material, such as glass fibers, and that undergoes less warping deformation and significantly less burr formation. The polyester resin composition comprises (A) 15 mass % or more and 30 mass % or less of a polybutylene terephthalate resin, (B) 1 mass % or more and less than 15 mass % of at least one polyester resin other than polybutylene terephthalate resins, (C) 5 mass % or more and 20 mass % or less of an amorphous resin, (D) 50 mass % or more and 70 mass % or less of an inorganic reinforcing material, (E) 0.1 mass % or more and 3 mass % or less of a glycidyl group-containing styrene copolymer, (F) 0.5 mass % or more and 2 mass % or less of an ethylene-glycidyl (meth)acrylate copolymer, and (G) 0.Type: ApplicationFiled: March 5, 2019Publication date: January 7, 2021Applicant: TOYOBO CO., LTD.Inventors: Takuya SHIMOHARAI, Motonobu KAMIYA, Takahiro SHIMIZU
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Publication number: 20200231801Abstract: A polyester resin composition contains a polyester resin A containing 50 to 100 mass % of a polybutylene terephthalate resin and 0 to 50 mass % of a polyethylene terephthalate resin. The polyester resin composition further contains a predetermined amount of a metal organic acid salt B, which is either or both of an alkali metal organic acid salt and an alkaline earth metal organic acid salt; a predetermined amount of a styrenic resin C; and a predetermined amount of an inorganic filler D. The amount of linear oligomers of polybutylene terephthalate or the amount of the linear oligomers of polybutylene terephthalate and linear oligomers of polyethylene terephthalate is less than or equal to 1000 mg/kg. Inorganic filler D has an average particle size of 0.05 to 3 ?m.Type: ApplicationFiled: January 26, 2018Publication date: July 23, 2020Applicant: TOYOBO CO., LTD.Inventors: Takuya SHIMOHARAI, Yasuto FUJII, Takahiro SHIMIZU
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Patent number: 10550262Abstract: The present invention relates to a polyester resin composition which has an excellent infrared light-transmitting property, and is excellent in heat resistance and low gas emission, and is suitable for use as black colored design parts (particularly as lamp parts). According to the present invention, there is provided a polyester resin composition containing, per 100 parts by mass of a polyester resin, 0.005 to 20 part(s) by mass of an inorganic filler that has an average particle size of 3 ?m or less, 0.05 to 3 part(s) by mass of a polyfunctional glycidyl group-containing styrene polymer and 0.5 to 3 part(s) by mass of an infrared light-transmitting black dye, wherein the polyester resin composition satisfies the following requirements (1) and (2). (1) An average value of transmittances, for wavelengths of 800 to 1100 nm, of a flat plate that is obtained from the polyester resin composition and has a thickness of 2 mm is 5% or higher and less than 20%. (2) Color-L?7.Type: GrantFiled: May 26, 2016Date of Patent: February 4, 2020Assignee: TOYOBO CO., LTD.Inventors: Takuya Shimoharai, Junichi Yasui
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Publication number: 20200010667Abstract: A polyester resin composition contains a polyester resin A containing 70 to 100 mass % of a polybutylene terephthalate resin and 0 to 30 mass % of a polyethylene terephthalate resin. The polyester resin composition further contains a metal organic acid salt B, which is either or both of an alkali metal organic acid salt and an alkaline earth metal organic acid salt, and a predetermined amount of a styrenic resin C. The polyester resin composition contains a predetermined amount of either or both of an alkali metal atom and an alkaline earth metal atom relative to 100 parts by mass of the polyester resin A. In the polyester resin composition, the amount of linear oligomers of polybutylene terephthalate or the amount of the linear oligomers of polybutylene terephthalate and linear oligomers of polyethylene terephthalate is less than or equal to 1000 mg/kg.Type: ApplicationFiled: January 26, 2018Publication date: January 9, 2020Applicant: TOYOBO CO., LTD.Inventors: Takuya SHIMOHARAI, Satoru HORIGUCHI
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Patent number: 10385205Abstract: The present invention is a polyester resin composition that includes a polyester resin A containing 50 to 100% by mass of a polybutylene terephthalate resin and 0 to 50% by mass of a polyethylene terephthalate resin, a metal organic acid salt B being either one or both of an alkali metal organic acid salt and an alkaline earth metal organic acid salt, a polyfunctional glycidyl group-containing styrene-based polymer C in a predetermined amount, and an inorganic filler D having an average particle diameter of 0.05 to 3 ?m. The polyester resin composition contains a predetermined amount of alkali metal atoms/alkaline earth metal atoms, and further the content of linear oligomers of polybutylene terephthalate, or the content of linear oligomers of polybutylene terephthalate and polyethylene terephthalate is less than or equal to 1000 mg/kg.Type: GrantFiled: August 24, 2016Date of Patent: August 20, 2019Assignee: TOYOBO CO., LTD.Inventors: Takuya Shimoharai, Yasuto Fujii, Takahiro Shimizu, Junichi Yasui, Satoru Horiguchi
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Publication number: 20190002687Abstract: A polyester resin composition includes a polyester resin A containing 70 to 100% by mass of a polybutylene terephthalate resin and 0 to 30% by mass of a polyethylene terephthalate resin, and includes a metal organic acid salt B that is either one or both of an alkali metal organic acid salt and an alkaline earth metal organic acid salt and a predetermined amount of a polyfunctional glycidyl group-containing styrene-based polymer C, and the polyester resin composition contains either one or both of alkali metal atoms and alkaline earth metal atoms in a predetermined amount based on 100 parts by mass of the polyester resin A, and further, the content of linear oligomers of polybutylene terephthalate or the content of the linear oligomers of polybutylene terephthalate and the linear oligomers of polyethylene terephthalate is less than or equal to 1000 mg/kg.Type: ApplicationFiled: December 21, 2016Publication date: January 3, 2019Applicant: TOYOBO CO., LTD.Inventors: Takuya SHIMOHARAI, Satoru HORIGUCHI, Junichi YASUI
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Publication number: 20180319975Abstract: The present invention relates to a polyester resin composition which has an excellent infrared light-transmitting property, and is excellent in heat resistance and low gas emission, and is suitable for use as black colored design parts (particularly as lamp parts). According to the present invention, there is provided a polyester resin composition containing, per 100 parts by mass of a polyester resin, 0.005 to 20 part(s) by mass of an inorganic filler that has an average particle size of 3 ?m or less, 0.05 to 3 part(s) by mass of a polyfunctional glycidyl group-containing styrene polymer and 0.5 to 3 part(s) by mass of an infrared light-transmitting black dye, wherein the polyester resin composition satisfies the following requirements (1) and (2). (1) An average value of transmittances, for wavelengths of 800 to 1100 nm, of a flat plate that is obtained from the polyester resin composition and has a thickness of 2 mm is 5% or higher and less than 20%. (2) Color-L?7.Type: ApplicationFiled: May 26, 2016Publication date: November 8, 2018Applicant: TOYOBO CO., LTD.Inventors: Takuya SHIMOHARAI, Junichi YASUI
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Publication number: 20180282538Abstract: The present invention is a polyester resin composition that is includes a polyester resin A containing 50 to 100% by mass of a polybutylene terephthalate resin and 0 to 50% by mass of a polyethylene terephthalate resin, a metal organic acid salt B being either one or both of an alkali metal organic acid salt and an alkaline earth metal organic acid salt, a polyfunctional glycidyl group-containing styrene-based polymer C in a predetermined amount, and an inorganic filler D having an average particle diameter of 0.05 to 3 ?m. The polyester resin composition contains a predetermined amount of alkali metal atoms/alkaline earth metal atoms, and further the content of linear oligomers of polybutylene terephthalate, or the content of linear oligomers of polybutylene terephthalate and polyethylene terephthalate is less than or equal to 1000 mg/kg.Type: ApplicationFiled: August 24, 2016Publication date: October 4, 2018Applicant: TOYOBO CO., LTD.Inventors: Takuya SHIMOHARAI, Yasuto FUJII, Takahiro SHIMIZU, Junichi YASUI, Satoru HORIGUCHI
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Publication number: 20180282539Abstract: The present invention is directed to a thermoplastic polyester resin composition that contains 100 to 50 parts by mass of a polybutylene terephthalate resin (A) and 0 to 50 parts by mass of a polyethylene terephthalate resin (B), and contains 1 to 20 parts by mass of a surface-treated calcium carbonate (C) having an average particle size of 0.05 to 2 ?m and 0.05 to 3 parts by mass of a multifunctional glycidyl group-containing styrene-based polymer (D) with respect to 100 parts by mass of the total polyester resin contained in the resin composition.Type: ApplicationFiled: August 24, 2016Publication date: October 4, 2018Applicant: TOYOBO CO., LTD.Inventors: Junichi YASUI, Satoru HORIGUCHI, Takuya SHIMOHARAI
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Patent number: 9850342Abstract: The present invention provides a polyester resin which is excellent in long-term thermal stability and moldability, comprises a dicarboxylic acid component and a glycol component, wherein 10 mol % or more of a furandicarhoxylic acid is contained as the dicarboxylic acid component and the polyester resin satisfies following requirements (1) to (3); (1) a total metal element content is 150 ppm or less relative to the mass of the polyester resin; (2) a phosphorus element content is 100 ppm or less relative to the mass of the polyester resin; and (3) TOD? reduced viscosity represented by the following formula is 0.030 dl/g or less; (TOD? reduced viscosity)=(reduced viscosity before thermal oxidation test)?(reduced viscosity after thermal oxidation test).Type: GrantFiled: December 17, 2014Date of Patent: December 26, 2017Assignee: Toyobo Co., Ltd.Inventors: Takuya Shimoharai, Koji Kobayashi
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Publication number: 20160319066Abstract: The present invention provides a polyester resin which is excellent in long-term thermal stability and moldability, comprises a dicarboxylic acid component and a glycol component, wherein 10 mol % or more of a furandicarhoxylic acid is contained as the dicarboxylic acid component and the polyester resin satisfies following requirements (1) to (3); (1) a total metal element content is 150 ppm or less relative to the mass of the polyester resin; (2) a phosphorus element content is 100 ppm or less relative to the mass of the polyester resin; and (3) TOD? reduced viscosity represented by the following formula is 0.030 dl/g or less; (TOD? reduced viscosity)=(reduced viscosity before thermal oxidation test)?(reduced viscosity after thermal oxidation test).Type: ApplicationFiled: December 17, 2014Publication date: November 3, 2016Applicant: TOYOBO CO., LTD.Inventors: Takuya SHIMOHARAI, Koji KOBAYASHI