Patents by Inventor Mitsuteru Mutsuda
Mitsuteru Mutsuda 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: 20160200910Abstract: In a composition comprising (A) a reinforcing fiber containing a carbon fiber, (B) a resin particle, and (C) a matrix resin (C), the resin particle (B) comprises a spherical resin particle having an average particle diameter of 12 to 70 ?m. In a composition comprising (A) a reinforcing fiber containing a carbon fiber, (B) a resin particle, and (C) a matrix resin, the resin particle (B) comprises (B1) a spherical small resin particle having a particle diameter less than an average fiber diameter of the reinforcing fiber (A) and (B2) a spherical large resin particle having a particle diameter not less than the average fiber diameter of the reinforcing fiber (A). The reinforcing fiber (A) may particularly comprise a carbon fiber. The resin particle (B) may particularly comprise a polyamide resin particle. The resin particle (B) may have an average particle diameter of 1 to 10 times as large as the average fiber diameter of the reinforcing fiber (A).Type: ApplicationFiled: September 4, 2014Publication date: July 14, 2016Applicant: DAICEL-EVONIK LTD.Inventors: Mitsuteru MUTSUDA, Thomas GROSSE-PUPPENDAHAL
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Patent number: 9382414Abstract: A thermoplastic resin composition having a high flame retardancy in a thin-wall molded product and a molded article thereof are provided. The thermoplastic resin composition comprises (A) a thermoplastic resin containing a repeating unit having an arylene group, an ether group, and a carbonyl group and (B) a thermoplastic fluorine-containing resin. The weight ratio of the thermoplastic resin (A) and the thermoplastic fluorine-containing resin (B) in the former/the latter is 80/20 to 99/1. The thermoplastic fluorine-containing resin (B) is dispersed in the form of a particle in the thermoplastic resin (A) to form a dispersed phase, and the dispersed phase has an average particle diameter of not more than 3 ?m. The thermoplastic resin composition is suitable for forming a molded article having a thin-wall portion with a thickness of not more than 1.5 mm.Type: GrantFiled: August 21, 2013Date of Patent: July 5, 2016Assignee: DAICEL-EVONIK LTD.Inventors: Mitsuteru Mutsuda, Tatsuki Akashi, Yuki Adachi, Haruhisa Masuda
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Publication number: 20160096946Abstract: A resin powder containing an ultraviolet scattering agent (such as a titanium oxide particle or a zinc oxide particle) is deformed into a plate-like form. The ultraviolet scattering agent may include, for example, a titanium oxide particle or zinc oxide particle having an average particle diameter of not more than 100 nm. A resin contained in the resin powder may particularly be a thermoplastic resin (e.g., a polyamide resin). The plate-like resin powder may be a powder obtainable by deforming resin particles, each containing the ultraviolet scattering agent, into a plate-like form. The resulting resin powder has an excellent ultraviolet scattering function.Type: ApplicationFiled: April 24, 2014Publication date: April 7, 2016Applicant: DAICEL-EVONIK LTD.Inventors: Mitsuteru MUTSUDA, Hirofumi IGUCHI
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Publication number: 20160083616Abstract: A resin powder containing an aromatic polyetherketone resin (e.g., a polyetheretherketone) is deformed into a plate-like form, and the resulting powder is used as a resin powder for a coating material. The plate-like resin powder may have an average thickness of, for example, not more than 2 ?m. The coating material may contain a dispersing agent or may be dispersed in a dispersion medium, such as water. The coating material may particularly be used as a coating material for covering a metal substrate. The plate-like resin powder, which comprise an aromatic polyetherketone resin, allows formation of a coating layer which has a high adhesion to a substrate and in which the generation of pinholes is efficiently prevented or reduced.Type: ApplicationFiled: June 6, 2014Publication date: March 24, 2016Applicant: DAICEL-EVONIK LTD.Inventors: Mitsuteru MUTSUDA, Hirofumi IGUCHI, Ryo NAKAHAMA, Kimihiko OYA
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Publication number: 20160068652Abstract: Provided is an additive that increases or improves a light resistance (or whiteness) of a non-fluorinated thermoplastic resin (e.g., a super engineering plastic, such as an aromatic polyamide, a liquid crystal polyester, or an aromatic polyetherketone resin). The additive comprises a fluorine-containing resin and an inorganic white pigment (e.g., titanium oxide). The fluorine-containing resin may be, for example, a fluorine-containing resin comprising a tetrafluoroethylene unit as a monomer unit, in particular, may be a tetrafluoroethylene copolymer (e.g., at least one member selected from the group consisting of a copolymer of tetrafluoroethylene and another fluorinated olefin, a copolymer of tetrafluoroethylene and a fluorinated vinyl ether, and a copolymer of tetrafluoroethylene, another fluorinated olefin and a fluorinated vinyl ether).Type: ApplicationFiled: October 17, 2013Publication date: March 10, 2016Applicant: DAICEL-EVONIK LTD.Inventors: Tatsuki AKASHI, Mitsuteru MUTSUDA
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Publication number: 20160046806Abstract: Provided is an additive that increases or improves a light resistance of anon-fluorinated thermoplastic resin (e.g., a super engineering plastic, such as an aromatic polyamide, a liquid crystal polyester, or an aromatic polyetherketone resin). The additive comprises a fluorine-containing resin. The fluorine-containing resin may be, for example, a fluorine-containing resin comprising a tetrafluoroethylene unit as a monomer unit, in particular, may be a tetrafluoroethylene copolymer (e.g., at least one member selected from the group consisting of a copolymer of tetrafluoroethylene and another fluorinated olefin, a copolymer of tetrafluoroethylene and a fluorinated vinyl ether, and a copolymer of tetrafluoroethylene, another fluorinated olefin and a fluorinated vinyl ether).Type: ApplicationFiled: October 17, 2013Publication date: February 18, 2016Applicant: DAICEL-EVONIK LTD.Inventors: Tatsuki AKASHI, Mitsuteru MUTSUDA
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Publication number: 20150259525Abstract: A thermoplastic resin composition having a high flame retardancy in a thin-wall molded product and a molded article thereof are provided. The thermoplastic resin composition comprises (A) a thermoplastic resin containing a repeating unit having an arylene group, an ether group, and a carbonyl group and (B) a thermoplastic fluorine-containing resin. The weight ratio of the thermoplastic resin (A) and the thermoplastic fluorine-containing resin (B) in the former/the latter is 80/20 to 99/1. The thermoplastic fluorine-containing resin (B) is dispersed in the form of a particle in the thermoplastic resin (A) to form a dispersed phase, and the dispersed phase has an average particle diameter of not more than 3 ?m. The thermoplastic resin composition is suitable for forming a molded article having a thin-wall portion with a thickness of not more than 1.5 mm.Type: ApplicationFiled: August 21, 2013Publication date: September 17, 2015Applicants: Daikin Industries, Ltd., Daicel-Evonik Ltd.Inventors: Mitsuteru Mutsuda, Tatsuki Akashi, Yuki Adachi, Haruhisa Masuda
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Publication number: 20150024130Abstract: A sealant capable of tightly sealing an electric device at a low temperature and a sealing method of using the sealant are provided. The sealant for sealing a device comprises a copolyamide-series resin powder having a particle diameter of not more than 1 mm. The copolyamide-series resin powder contains at least a fine particle (e.g., a copolyamide-series resin particle having an average particle diameter of 20 to 400 ?m), or may contain the fine particle in combination with a coarse particle (e.g., a copolyamide-series resin particle having an average particle diameter of 450 to 800 ?m). The copolyamide-series resin may be a crystalline resin. The copolyamide-series resin may have a melting point or softening point of 75 to 160° C. The copolyamide-series resin may be, e.g., a binary or ternary copolymer.Type: ApplicationFiled: February 8, 2013Publication date: January 22, 2015Applicant: Daicel-Evonik Ltd.Inventors: Hiroaki Arita, Yoshiki Nakaie, Mitsuteru Mutsuda
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Publication number: 20150024224Abstract: A paste sealant capable of shortening sealing and molding cycles in spite of containing an aqueous medium and a sealing method of using the sealant are provided. The paste sealant for molding and sealing a device comprises a copolyamide-series resin and an aqueous medium. The copolyamide-series resin may be a crystalline resin. The copolyamide-series resin may have a melting point or softening point of 75 to 160° C. The copolyamide-series resin may be a multiple copolymer, e.g., a binary or ternary copolymer. Further, the copolyamide-series resin may contain a unit derived from a long-chain component having a C8-16alkylene group (at least one component selected from the group consisting of a C9-17lactam and an aminoC9-17alkanecarboxylic acid). The paste sealant may further contain a thickener [e.g., a (meth)acrylic polymer].Type: ApplicationFiled: March 8, 2013Publication date: January 22, 2015Inventors: Hiroaki Arita, Yoshiki Nakaie, Mitsuteru Mutsuda
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Patent number: 8765047Abstract: Thermoplastic resin composition providing improved molding efficiency due to high flowability and a high crystallization temperature, while ensuring desired physical properties (e.g., strength) in a molded product. Also, molded product of the composition. The thermoplastic resin composition comprises a plurality of thermoplastic resins having a melt viscosity different from each other and containing a unit which comprises an arylene group and an ether group and/or a carbonyl group. The thermoplastic resin composition may comprise a first thermoplastic resin having a melt viscosity of 150 to 1500 Pa·s at a temperature of 400° C. and a shear rate of 1216 s?1 and a second thermoplastic resin, wherein the melt viscosity ratio of the first thermoplastic resin relative to the second thermoplastic resin, at a temperature of 400° C. and a shear rate of 1216 s?1, is 1.5:1 to 10:1.Type: GrantFiled: September 6, 2013Date of Patent: July 1, 2014Assignee: Daicel-Evonik Ltd.Inventor: Mitsuteru Mutsuda
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Patent number: 8663542Abstract: A thermoplastic resin composition of which the molding efficiency can be improved by a high flowability and a high crystallization temperature while ensuring desired physical properties (e.g., strength) in a molded product, and a molded product of the composition are provided. The thermoplastic resin composition comprises a plurality of thermoplastic resins having a melt viscosity different from each other and containing a unit which comprises an arylene group and an ether group and/or a carbonyl group; when the thermoplastic resin composition at least comprises a first thermoplastic resin having a melt viscosity of 150 to 1500 Pa·s at a temperature of 400° C. and a shear rate of 1216 s?1, and a second thermoplastic resin, and the melt viscosity ratio of the first thermoplastic resin relative to the second thermoplastic resin at a temperature of 400° C. and a shear rate of 1216 s?1 [the former/the latter] is 1.5/1 to 10/1.Type: GrantFiled: July 9, 2010Date of Patent: March 4, 2014Assignee: Daicel-Evonik Ltd.Inventor: Mitsuteru Mutsuda
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Publication number: 20140008843Abstract: A thermoplastic resin composition of which the molding efficiency can be improved by a high flowability and a high crystallization temperature while ensuring desired physical properties (e.g., strength) in a molded product, and a molded product of the composition are provided. The thermoplastic resin composition comprises a plurality of thermoplastic resins having a melt viscosity different from each other and containing a unit which comprises an arylene group and an ether group and/or a carbonyl group; when the thermoplastic resin composition at least comprises a first thermoplastic resin having a melt viscosity of 150 to 1500 Pa·s at a temperature of 400° C. and a shear rate of 1216 s?1, and a second thermoplastic resin, and the melt viscosity ratio of the first thermoplastic resin relative to the second thermoplastic resin at a temperature of 400° C. and a shear rate of 1216 s?1 [the former/the latter] is 1.5/1 to 10/1.Type: ApplicationFiled: September 6, 2013Publication date: January 9, 2014Applicant: DAICEL-EVONIK LTD.Inventor: Mitsuteru MUTSUDA
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Publication number: 20130318835Abstract: A sheet for forming a shoe sole, useful for efficiently joining a crosslinked rubber layer as a stud and a thermoplastic elastomer layer as a sole, is provided. The sheet comprises a resin component (A) containing a polyamide resin (a) and having an amino group concentration of not less than 10 mmol/kg and a flexural modulus of not less than 300 MPa in accordance with ISO178. The polyamide resin (a) may contain a polyamide resin having a melting point of not less than 165° C. at a predetermined concentration (e.g., not less than 30% by weight) in the total polyamide resin (a).Type: ApplicationFiled: March 11, 2011Publication date: December 5, 2013Applicant: DAICEL-EVONIK LTD.Inventors: Mitsuteru Mutsuda, Hiroaki Arita, Tomohiro Kawahara
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Publication number: 20130177704Abstract: A sealant capable of tightly sealing an electric device at a low temperature and a sealing method of using the sealant are provided. The sealant for molding and sealing a device comprises a copolyamide-series resin powder. The copolyamide-series resin may be a crystalline resin. The copolyamide-series resin may have a melting point or softening point of 75 to 160° C. The copolyamide-series resin may be a multiple copolymer, e.g., a binary or ternary copolymer. Further, the copolyamide-series resin may contain a unit derived from a long-chain component having a C8-16alkylene group (at least one component selected from the group consisting of a C9-17lactam and an aminoC9-17alkanecarboxylic acid).Type: ApplicationFiled: September 21, 2011Publication date: July 11, 2013Applicant: DAICEL-EVONIK LTD.Inventors: Hiroaki Arita, Yoshiki Nakaie, Mitsuteru Mutsuda
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Patent number: 8173262Abstract: In a molded composite article, a resin member comprising a non-urethane thermoplastic resin and a resin member comprising a thermoplastic polyurethane resin are directly joined with each other. The non-urethane thermoplastic resin comprises at least one member selected from the group consisting of a polyamide component having an alicyclic ring and an amino group-containing compound, or each of the non-urethane thermoplastic resins and the thermoplastic polyurethane has a polyether segment. Even if the base resin is a non-urethane thermoplastic resin, the present invention provides a direct and firm bonding between the non-urethane thermoplastic resin member and the thermoplastic polyurethane resin member.Type: GrantFiled: September 30, 2004Date of Patent: May 8, 2012Assignee: Daicel-Evonik Ltd.Inventors: Mitsuteru Mutsuda, Hiroaki Arita, Hajime Komada, Toru Ikuta
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Publication number: 20120100365Abstract: A thermoplastic resin composition of which the molding efficiency can be improved by a high flowability and a high crystallization temperature while ensuring desired physical properties (e.g., strength) in a molded product, and a molded product of the composition are provided. The thermoplastic resin composition comprises a plurality of thermoplastic resins having a melt viscosity different from each other and containing a unit which comprises an arylene group and an ether group and/or a carbonyl group; when the thermoplastic resin composition at least comprises a first thermoplastic resin having a melt viscosity of 150 to 1500 Pa·s at a temperature of 400° C. and a shear rate of 1216 s?1, and a second thermoplastic resin, and the melt viscosity ratio of the first thermoplastic resin relative to the second thermoplastic resin at a temperature of 400° C. and a shear rate of 1216 s?1 [the former/the latter] is 1.5/1 to 10/1.Type: ApplicationFiled: July 9, 2010Publication date: April 26, 2012Inventor: Mitsuteru Mutsuda
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Patent number: 8029910Abstract: The present invention is directed to a composite comprising a resin element comprising a resin composition and a vulcanized rubber element formed by vulcanizing an unvulcanized rubber, wherein the resin composition comprises a resin, a vulcanization-activating agent for improving adhesiveness of the resin to a rubber, and a stabilizer, and the resin composition and the vulcanized rubber are directly joined together.Type: GrantFiled: May 4, 2010Date of Patent: October 4, 2011Assignee: Daicel-Evonik Ltd.Inventors: Toru Ikuta, Hajime Komada, Mitsuteru Mutsuda, Hiroaki Arita, Naoki Wakita
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Patent number: 7989540Abstract: A resin composition comprises a resin, a vulcanization-activating agent, and a stabilizer. The vulcanization-activating agent may be a compound having a plurality of polymerizable unsaturated bonds (e.g., a compound having a plurality of (meth)acryloyl groups). The stabilizer may be an antioxidant, or a light stabilizer (particularly, a stabilizer is capable of capturing a radical). Use of the resin composition as a resin material ensures to directly join between a resin and a rubber certainly and firmly. The proportion of the vulcanization-activating agent may be about 0.1 to 10 parts by weight relative to 100 parts by weight of the resin. The proportion of the stabilizer may be about 0.01 to 5 parts by weight relative to 100 parts by weight of the resin. The present invention provides a resin composition excellent in adhesiveness to a rubber.Type: GrantFiled: September 12, 2003Date of Patent: August 2, 2011Assignee: Daicel-Evonik Ltd.Inventors: Toru Ikuta, Hajime Komada, Mitsuteru Mutsuda, Hiroaki Arita, Naoki Wakita
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Publication number: 20100215964Abstract: A resin composition comprises a resin, a vulcanization-activating agent, and a stabilizer. The vulcanization-activating agent may be a compound having a plurality of polymerizable unsaturated bonds (e.g., a compound having a plurality of (meth)acryloyl groups). The stabilizer may be an antioxidant, or a light stabilizer (particularly, a stabilizer is capable of capturing a radical). Use of the resin composition as a resin material ensures to directly join between a resin and a rubber certainly and firmly. The proportion of the vulcanization-activating agent may be about 0.1 to 10 parts by weight relative to 100 parts by weight of the resin. The proportion of the stabilizer may be about 0.01 to 5 parts by weight relative to 100 parts by weight of the resin. The present invention provides a resin composition excellent in adhesiveness to a rubber.Type: ApplicationFiled: May 4, 2010Publication date: August 26, 2010Inventors: Toru IKUTA, Hajime KOMADA, Mitsuteru MUTSUDA, Hiroaki ARITA, Naoki WAKITA
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Patent number: 7740943Abstract: In a molded composite article formed by directly bonding a resin member comprising a polyamide-series resin to a resin member comprising a thermoplastic polyurethane-series resin, the polyamide-series resin comprises a polyamide block copolymer containing (A) a polyether segment having at least one terminal imino group. The polyamide-series resin may comprise a polyamide-series resin having a free amino group in a concentration of not less than about 10 mmol/kg. The molded composite article is producible, for example, by heating at least one of the polyamide-series resin and the thermoplastic polyurethane-series resin to bond the former to the latter. Thus obtained molded composite article is suitable for a member of a shoe and an industrial roll. In such a process, the polyamide-series resin member and the thermoplastic polyurethane-series resin member both of which are different in nature from each other can be directly and firmly bonded together.Type: GrantFiled: May 1, 2005Date of Patent: June 22, 2010Assignee: Daicel-Evonik Ltd.Inventors: Mitsuteru Mutsuda, Hiroaki Arita, Hajime Komada, Toru Ikuta