Patents by Inventor Masanori Takanashi
Masanori Takanashi 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: 20240052140Abstract: A curable polyorganosiloxane composition includes (a) a polyorganosiloxane having two or more curable functional group capable of causing addition reaction in one molecule; (b) a crosslinking agent having three or more crosslinking groups which have reactivity with the curable functional group of the (a) in one molecule; (c) a curing catalyst capable of catalyzing a crosslinking reaction of the (a) and (b); and (d) a silicon compound having a monovalent alkyl group of 8 to 30 carbon atoms and a hydrolyzable group which are directly bonded to a silicon atom; and in some cases, (e) scaly inorganic fine particles. An adhesive may use the curable polyorganosiloxane composition.Type: ApplicationFiled: December 21, 2021Publication date: February 15, 2024Applicant: MOMENTIVE PERFORMANCE MATERIALS JAPAN LLCInventor: Masanori TAKANASHI
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Patent number: 11739245Abstract: A thermally conductive polysiloxane composition includes (A) a thermally conductive filler, (B) a polyorganosiloxane resin including at least one polysiloxane having one curable functional group in the molecule thereof, and (C) a siloxane compound having an alkoxysilyl group and a linear siloxane structure.Type: GrantFiled: July 20, 2017Date of Patent: August 29, 2023Assignee: MOMENTIVE PERFORMANCE MATERIALS JAPAN LLCInventors: Masanori Takanashi, Isao Iida, Daigo Hirakawa, Kenji Takenaka, Eiji Tanigawa
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Publication number: 20230047848Abstract: A curable silicone adhesive composition comprising a combination of adhesion promoters is shown and described herein. The composition includes a first adhesion promoter selected from a silicon hydride adhesion promoter and a second adhesion promoter selected from an acrylate functional adhesion promoter to provide a silicone material that is curable at relatively low temperatures and shorter time and provides good adhesion to plastics and metal.Type: ApplicationFiled: December 13, 2019Publication date: February 16, 2023Inventors: Mandal SUBRATA, Koki OTASHIRO, Masanori TAKANASHI, Ramasubramanian NARAYANAN
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Publication number: 20220403211Abstract: An addition reaction curing type polyorganosiloxane composition for bonding poly(phenylene sulfide) resins includes (A) a polyorganosiloxane containing two or more alkenyl groups in the molecule, (B) a polyorganohydrogensiloxane having, in the molecule, three or more silicon-atom-bonded hydrogen atoms, (C) a platinum-based catalyst, (D) an oxide or carbonate of a metal selected from among the metals in Groups 2 and 12 of the periodic table, and (E) an adhesion promoter, the content of the ingredient (D) being 0.1-20 wt % with respect to the whole composition.Type: ApplicationFiled: October 20, 2020Publication date: December 22, 2022Applicant: MOMENTIVE PERFORMANCE MATERIALS JAPAN LLCInventor: Masanori TAKANASHI
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Patent number: 11286349Abstract: A siloxane compound represented by the general formula (1): where R1 is a group having an alkoxysilyl group having 1 to 4 carbon atoms, R2 is a linear organosiloxy group represented by the general formula (2): where each R4 is independently a monovalent hydrocarbon group having 1 to 12 carbon atoms, Y is a monovalent hydrocarbon group having 1 to 6 carbon atoms, and d is an integer of 10 to 50, each X is independently a divalent hydrocarbon group having 2 to 10 carbon atoms, each of a and b is independently an integer of 1 or more, c is an integer of 0 or more, a+b+c is an integer of 4 or more, and each R3 is independently a monovalent hydrocarbon group having 1 to 6 carbon atoms.Type: GrantFiled: July 20, 2017Date of Patent: March 29, 2022Assignee: MOMENTIVE PERFORMANCE MATERIALS JAPAN LLCInventors: Eiji Tanigawa, Masanori Takanashi, Isao Iida, Daigo Hirakawa, Kenji Takenaka
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Publication number: 20220056326Abstract: An adhesive polyorganosiloxane composition includes, at a specific composition ratio: (A) a linear polyorganosiloxane containing an alkenyl group including a low-viscosity linear polyorganosiloxane containing an alkenyl group; (B) a polyorganosiloxane containing at least three alkenyl groups in the molecule; (C1) a polyorganohydrogensiloxane having 3 or more hydrogen atoms bonded to a silicon atom in the molecule; (C2) a linear polyorganohydrogensiloxane having one hydrogen atom bonded to a silicon atom only at both terminals of the molecular chain, and having no aliphatic unsaturated bonds in the molecule; (D) a filler; (E) a platinum group metal compound; and (F) two or more kinds of specific adhesion imparting agent.Type: ApplicationFiled: December 23, 2019Publication date: February 24, 2022Applicant: MOMENTIVE PERFORMANCE MATERIALS JAPAN LLCInventors: Koki OTASHIRO, Koji MIYATA, Masanori TAKANASHI
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Patent number: 11254849Abstract: A method for producing a polyorganosiloxane resin composition including: (a) mixing a thermally-conductive filler having a particle size distribution having a single peak, with a surface treatment agent containing a siloxane to form a mixture, and (b) mixing the mixture from step (a) with a polysiloxane resin.Type: GrantFiled: November 2, 2016Date of Patent: February 22, 2022Assignee: MOMENTIVE PERFORMANCE MATERIALS JAPAN LLCInventors: Eiji Tanigawa, Masanori Takanashi, Isao Iida, Daigo Hirakawa, Kenji Takenaka
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Publication number: 20210395582Abstract: An adhesive polyorganosiloxane composition includes: (A) a polyorganosiloxane having 2 or more alkenyl groups in each molecule thereof; (B) a polyorganohydrodienesiloxane having 3 or more hydrogen atoms bonded to a silicon atom in each molecule thereof; (C) a platinum-based catalyst; (D) at least two kinds of adhesion-imparting agents selected from the group consisting of specific organic silicon compounds, silane compounds, tetraalkoxysilane compounds, and/or partial hydrolysis condensates thereof; (E) hexamethyldisilazane; (F) water; and (G) at least one of (G1) and (G2), where (G1) is a non-surface-treated inorganic filler having a BET specific surface area of 50 to 500 m2/g, and (G2) is an inorganic filler obtained by surface-treating said (G1) with hexamethyldisilazane.Type: ApplicationFiled: November 13, 2019Publication date: December 23, 2021Applicant: MOMENTIVE PERFORMANCE MATERIALS JAPAN LLCInventor: Masanori TAKANASHI
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Patent number: 11142644Abstract: The present invention relates to a thermally conductive polysiloxane composition that provides a cured product having excellent tackiness and flexibility in which the composition contains (A) a thermally conductive filler, (B) a siloxane compound having an alkoxysilyl group and a linear siloxane structure, (C) a polyorganosiloxane having at least two alkenyl groups bonded to silicon atoms per molecule, (D1) a linear polyorganohydrogensiloxane represented by the general formula (4), (D2) a polyorganohydrogensiloxane having per molecule at least three units represented by the general formula (5), and (E) a platinum catalyst.Type: GrantFiled: January 25, 2018Date of Patent: October 12, 2021Assignee: MOMENTIVE PERFORMANCE MATERIALS JAPAN LLCInventors: Daigo Hirakawa, Masanori Takanashi, Atsushi Sakamoto
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Patent number: 11118056Abstract: A thermally conductive polysiloxane composition includes (A) a thermally conductive filler, and (B) at least one member selected from the group consisting of an alkoxysilyl group-containing compound and a dimethylpolysiloxane. The component (A) includes at least two thermally conductive fillers having different average particle diameters, and (A-1) indefinite-shaped aluminum nitride particles having an average particle diameter of 30 ?m to 150 ?m in an amount of at least 20% by mass, based on the mass of a total of the component (A).Type: GrantFiled: July 20, 2017Date of Patent: September 14, 2021Assignee: MOMENTIVE PERFORMANCE MATERIALS JAPAN LLCInventors: Daigo Hirakawa, Masanori Takanashi, Isao Iida, Kenji Takenaka, Eiji Tanigawa
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Patent number: 11084927Abstract: A thermally conductive polysiloxane composition includes (A) a thermally conductive filler, and (B) at least one member selected from the group consisting of an alkoxysilyl group-containing compound and a dimethylpolysiloxane. The component (A) includes at least two thermally conductive fillers having different average particle diameters, and (A-1) indefinite-shaped aluminum nitride particles having an average particle diameter of 30 ?m to 150 ?m in an amount of at least 20% by mass, based on the mass of a total of the component (A).Type: GrantFiled: July 20, 2017Date of Patent: August 10, 2021Assignee: MOMENTIVE PERFORMANCE MATERIALS JAPAN LLCInventors: Daigo Hirakawa, Masanori Takanashi, Isao Iida, Kenji Takenaka, Eiji Tanigawa
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Publication number: 20210147681Abstract: A thermally conductive polysiloxane composition includes (A) a thermally conductive filler, and (B) at least one member selected from the group consisting of an alkoxysilyl group-containing compound and a dimethylpolysiloxane. The component (A) includes at least two thermally conductive fillers having different average particle diameters, and (A-1) indefinite-shaped aluminum nitride particles having an average particle diameter of 30 ?m to 150 ?m in an amount of at least 20% by mass, based on the mass of a total of the component (A).Type: ApplicationFiled: July 20, 2017Publication date: May 20, 2021Applicant: MOMENTIVE PERFORMANCE MATERIALS JAPAN LLCInventors: Daigo HIRAKAWA, Masanori TAKANASHI, Isao IIDA, Kenji TAKENAKA, Eiji TANIGAWA
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Publication number: 20210147738Abstract: A thermally conductive polysiloxane composition includes (A) a thermally conductive filler, (B) a polyorganosiloxane resin including at least one polysiloxane having one curable functional group in the molecule thereof, and (C) a siloxane compound having an alkoxysilyl group and a linear siloxane structureType: ApplicationFiled: July 20, 2017Publication date: May 20, 2021Applicant: MOMENTIVE PERFORMANCE MATERIALS JAPAN LLCInventors: Masanori TAKANASHI, Isao IIDA, Daigo HIRAKAWA, Kenji TAKENAKA, Eiji TANIGAWA
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Publication number: 20210147633Abstract: A siloxane compound represented by the general formula (1): where R1 is a group having an alkoxysilyl group having 1 to 4 carbon atoms, R2 is a linear organosiloxy group represented by the general formula (2): where each R4 is independently a monovalent hydrocarbon group having 1 to 12 carbon atoms, Y is a monovalent hydrocarbon group having 1 to 6 carbon atoms, and d is an integer of 10 to 50, each X is independently a divalent hydrocarbon group having 2 to 10 carbon atoms, each of a and b is independently an integer of 1 or more, c is an integer of 0 or more, a+b+c is an integer of 4 or more, and each R3 is independently a monovalent hydrocarbon group having 1 to 6 carbon atoms.Type: ApplicationFiled: July 20, 2017Publication date: May 20, 2021Applicant: MOMENTIVE PERFORMANCE MATERIALS JAPAN LLCInventors: Eiji TANIGAWA, Masanori TAKANASHI, Isao IIDA, Daigo HIRAKAWA, Kenji TAKENAKA
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Publication number: 20210130615Abstract: The present invention relates to a thermally conductive polysiloxane composition that provides a cured product having excellent tackiness and flexibility in which the composition contains (A) a thermally conductive filler, (B) a siloxane compound having an alkoxysilyl group and a linear siloxane structure, (C) a polyorganosiloxane having at least two alkenyl groups bonded to silicon atoms per molecule, (D1) a linear polyorganohydrogensiloxane represented by the general formula (4), (D2) a polyorganohydrogensiloxane having per molecule at least three units represented by the general formula (5), and (E) a platinum catalyst.Type: ApplicationFiled: January 25, 2018Publication date: May 6, 2021Applicant: MOMENTIVE PERFORMANCE MATERIALS JAPAN LLCInventors: Daigo HIRAKAWA, Masanori TAKANASHI, Atsushi SAKAMOTO
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Patent number: 10941251Abstract: Provided is a composition comprising: (A) a silicone polymer of the Formula (I): M1aM2bM3cD1dD2eD3fT1gT2hT3iQj.Type: GrantFiled: March 22, 2018Date of Patent: March 9, 2021Assignee: Momentive Performance Materials Inc.Inventors: Vinu Krishnan Appukuttan, Pranabesh Dutta, Sandeep Naik, Anubhav Saxena, Masanori Takanashi
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Patent number: 10683444Abstract: A thermally conductive composition is a thermally conductive composition including (A) a spherical thermally conductive filler, (B) an alkoxysilane compound or dimethylpolysiloxane, and (C) a polyorganosiloxane (not inclusive of the dimethylpolysiloxane of component (B)), wherein component (A) is a mixture formulated with specific ratios of fillers having different average particle sizes, the mixture being formulated with a filler having an average particle size of 50 ?m or more in an amount of 30% by mass or more; component (B) and component (C) are included in a total amount of 1.5 to 35 parts by mass relative to 100 parts by mass of component (A); and a content ratio of component (C) in the total amount of component (B) and component (C) is 15 to 98% by mass.Type: GrantFiled: May 18, 2016Date of Patent: June 16, 2020Assignee: MOMENTIVE PERFORMANCE MATERIALS JAPAN LLCInventors: Masanori Takanashi, Daigo Hirakawa
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Patent number: 10344194Abstract: A thermally conductive silicone composition is shown and described herein. The thermally conductive silicone composition comprises (A) an ionically modified siloxane, and (B) a thermally conductive filler comprising a first filler and a second filler, where the first filler and/or the second filler comprises a plurality of filler types, the plurality of filler types differing from one another in terms of particle size and/or morphology. The ionically modified siloxane may function as a dispersing aid or wetter for efficient dispersion of thermal conducting organic and inorganic fillers to achieve high thermal conductivity.Type: GrantFiled: September 27, 2017Date of Patent: July 9, 2019Assignee: Momentive Performance Materials Inc.Inventors: Sandeep Naik, Pranabesh Dutta, Vinu Krishnan Appukuttan, Anubhav Saxena, Masanori Takanashi
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Publication number: 20190161666Abstract: A method for producing a polyorganosiloxane resin composition including: (a) mixing a thermally-conductive filler having a particle size distribution having a single peak, with a surface treatment agent containing a siloxane to form a mixture, and (b) mixing the mixture from step (a) with a polysiloxane resin.Type: ApplicationFiled: November 2, 2016Publication date: May 30, 2019Applicant: MOMENTIVE PERFORMANCE MATERIALS JAPAN LLCInventors: Eiji TANIGAWA, Masanori TAKANASHI, Isao IIDA, Daigo HIRAKAWA, Kenji TAKENAKA
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Publication number: 20180134938Abstract: The present invention provides a thermally conductive composition good in thermal conductivity, low in viscosity and easy in application. The thermally conductive composition is a thermally conductive composition including (A) a spherical thermally conductive filler and (B) an alkoxysilane compound or dimethylpolysiloxane, wherein the spherical thermally conductive filler of component (A) is a mixture formulated with specific ratios of fillers having different average particle sizes, the mixture being formulated with a spherical thermally conductive filler made of a nitride and having an average particle size of 50 ?m or more in an amount of 30% by mass or more.Type: ApplicationFiled: May 18, 2016Publication date: May 17, 2018Inventors: Daigo HIRAKAWA, Masanori TAKANASHI