Patents by Inventor Taiki Katayama
Taiki Katayama 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: 20230017437Abstract: Provided is an organopolysiloxane compound acting as a chain extender for use in a room-temperature-vulcanizing (RTV) composition of a dealcoholization type that can be rapidly turned into a rubber and then exhibit a rubber elasticity. The organopolysiloxane compound is represented by the following general formula (1), and also provided is a composition containing this compound and a linear diorganopolysiloxane with both molecular chain ends being blocked by a silanol group or a hydrolyzable silyl group, wherein each of R1, R2, R3 and R4 independently represents a substituted or unsubstituted alkyl group having 1 to 10 carbon atoms, or a substituted or unsubstituted aryl group having 6 to 10 carbon atoms; and n is a number of 0 to 10.Type: ApplicationFiled: December 7, 2020Publication date: January 19, 2023Applicant: Shin-Etsu Chemical Co., Ltd.Inventors: Yudai IMASAKA, Taiki KATAYAMA, Takafumi SAKAMOTO
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Publication number: 20220289979Abstract: The present invention is a room temperature curable resin composition comprising: as the main agent, an organic polymer in which both molecular chain terminals are sealed by a silanol group and/or a hydrolyzable silyl group; and an organic silicon compound of a specific structure having, in a molecule, an organosiloxane structure, a hydrolyzable silyl group, and a hindered amine skeleton. This resin composition produces a cured product in which the degradation over time associated with the effects of light such as UV rays can be suppressed.Type: ApplicationFiled: August 20, 2020Publication date: September 15, 2022Applicant: SHIN-ETSU CHEMICAL CO., LTD.Inventors: Taiki KATAYAMA, Tetsuro YAMADA, Munenao HIROKAMI
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Publication number: 20220162393Abstract: A room-temperature-curable organopolysiloxane composition for an oil seal, wherein an organosilane compound containing a specific organo-oxymethyl group and represented by formula (1) and/or a partial hydrolysis condensate of said compound is used as a curing agent (crosslinking agent), and an organic compound having a guanidine skeleton is added in combination as a curing catalyst. (In the formula, each R1 is independently a C1-12 unsubstituted or substituted monovalent hydrocarbon group, R2 is a C1-12 unsubstituted or substituted monovalent hydrocarbon group, Y is a hydrolyzable group, and n is 0, 1 or 2.) It is thus possible to obtain a cured product having good rubber properties, adhesiveness, and engine oil resistance after curing even without containing a metal-based catalyst.Type: ApplicationFiled: March 26, 2020Publication date: May 26, 2022Applicant: SHIN-ETSU CHEMICAL CO., LTD.Inventors: Akira UTA, Shigeki YASUDA, Tetsuro YAMADA, Munenao HIROKAMI, Taiki KATAYAMA, Takafumi SAKAMOTO
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Publication number: 20220106514Abstract: This room temperature-curable composition contains: (A) a prescribed polyoxyalkylene compound which has two reactive silicon groups (silyl groups having 1 hydroxy group or 1-3 organo-oxy groups) per molecule, with one reactive silicon group at each molecular chain terminal, and in which the main chain is a prescribed polyoxyalkylene-based polymer; (B) an inorganic filler; (C) a hydrolyzable (organo)silane compound and/or a partial hydrolytic condensation product thereof as a curing agent; (D) a silane coupling agent; and (E) a curing catalyst. Produced by this configuration is a cured product which exhibits excellent silicone oil resistance, excellent curing properties and good elongation and adhesive properties.Type: ApplicationFiled: January 16, 2020Publication date: April 7, 2022Applicant: SHIN-ETSU CHEMICAL CO., LTD.Inventors: Akira UTA, Taiki KATAYAMA, Takafumi SAKAMOTO
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Publication number: 20210324224Abstract: Provided is a primer composition capable of imparting a favorable adhesiveness when bonding a polyolefin resin and a silicone resin such as a cured product (silicone rubber cured product) of a silicone rubber composition selected from a room temperature condensation-curable silicone rubber composition and an addition-curable silicone rubber composition. The primer composition for bonding a silicone resin and a polyolefin resin comprises a copolymer (I) contained in a solvent (II), in which the copolymer (I) at least contains a (meth)acrylate ester monomer unit (A) and a (meth)acrylate ester monomer unit (B).Type: ApplicationFiled: August 21, 2019Publication date: October 21, 2021Applicant: Shin-Etsu Chemical Co., Ltd.Inventor: Taiki KATAYAMA
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Patent number: 10870254Abstract: The present invention is an interlayer film for laminated glass that includes 2 or more resin layers laminated on each other. The interlayer film for laminated glass has a large number of recesses and a large number of protrusions on at least one surface thereof. The recesses each have a groove shape with a continuous bottom. The recesses adjacent to each other are parallel to each other and regularly arranged in a line.Type: GrantFiled: August 1, 2014Date of Patent: December 22, 2020Assignee: SEKISUI CHEMICAL CO., LTD.Inventors: Hirofumi Kitano, Hiroaki Inui, Taiki Katayama, Manabu Matsumoto, Kazuhiko Nakayama
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Patent number: 10744744Abstract: The present invention aims to provide an interlayer film for a laminated glass which includes two or more resin layers laminated together and which has excellent deaeration properties in the manufacturing process of a laminated glass and prevents ghosting. The present invention also aims to provide a laminated glass comprising the interlayer film for a laminated glass. The present invention relates to an interlayer film for a laminated glass which includes two or more resin layers laminated together and has many minute recesses and many minute protrusions on at least one surface thereof. The recesses have a groove shape with a continuous bottom. The recesses are formed in a regular manner, and recesses adjacent to each other being parallel. Recesses adjacent to each other are spaced less than 750 ?m.Type: GrantFiled: August 2, 2013Date of Patent: August 18, 2020Assignee: SEKISUI CHEMICAL CO., LTD.Inventors: Hirofumi Kitano, Taiki Katayama
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Patent number: 10626132Abstract: The present invention provides: a novel organic titanium compound having an effect as an adhesion promoter by itself; a production method of such organic titanium compound; and a room temperature-curable resin composition containing such organic titanium compound both as a curing catalyst and as an adhesion promoter. Provided are an organic titanium compound represented by an average composition formula (I): Ti(OR1)4-a(Y3Si-A-O—CO—CH?C(O)R)a (wherein R1 represents a substituted or unsubstituted monovalent hydrocarbon group having 1 to 12 carbon atoms, R represents a substituted or unsubstituted monovalent hydrocarbon group having 1 to 12 carbon atoms, A represents a divalent hydrocarbon group having 3 to 6 carbon atoms, Y represents a hydrolyzable group, and a represents a number satisfying 0<a<4); a production method of such organic titanium compound; and a room temperature-curable resin composition that contains a room temperature-curable resin.Type: GrantFiled: July 16, 2018Date of Patent: April 21, 2020Assignee: SHIN-ETSU CHEMICAL CO., LTD.Inventors: Taiki Katayama, Takafumi Sakamoto
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Patent number: 10544170Abstract: Provided are an organosilicon compound capable of improving the storage stability of a composition (curability after long-term storage); and a method for producing the same. The organosilicon compound has, in one molecule, at least one carboxylic acid ester group represented by the following general formula (1) and at least one hydrolyzable silyl group represented by the following general formula (2): —OC(?O)CH2R1??(1) wherein R1 represents a hydrogen atom or a methyl group; —SiR23-nYn??(2) wherein R2 represents a substituted or unsubstituted monovalent hydrocarbon group having 1 to 12 carbon atoms, Y represents a hydrolyzable group, and n represents an integer satisfying 1?n?3.Type: GrantFiled: March 8, 2017Date of Patent: January 28, 2020Assignee: SHIN-ETSU CHEMICAL CO., LTD.Inventors: Taiki Katayama, Isao Iwasaki, Takafumi Sakamoto
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Publication number: 20190375769Abstract: Provided is an organosilicon compound characterized by containing at least one group represented by structural formula (1) in one molecule and having a main chain comprising a silicon-containing organic group. This organosilicon compound exhibits satisfactorily fast curability, and excellent yellowing resistance, heat resistance, storage stability, and safety. (In the formula, each R1 independently represents an unsubstituted or substituted C1-10 alkyl group, or an unsubstituted or substituted C6-10 aryl group, each R2 independently represents an unsubstituted or substituted C1-10 alkyl group, or an unsubstituted or substituted C6-10 aryl group, and each R3 independently represents a hydrogen atom or an unsubstituted or substituted C1-10 alkyl group. m is a number from 1-3, and n is an integer of 2 or greater. A dashed line represents a bond.Type: ApplicationFiled: May 16, 2017Publication date: December 12, 2019Applicant: Shin-Etsu Chemical Co., Ltd.Inventors: Tetsuro YAMADA, Munenao HIROKAMI, Taiki KATAYAMA
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Patent number: 10428183Abstract: Provided is a room temperature-curable resin composition containing an aluminum chelate compound. This aluminum chelate compound is an aluminum chelate compound having a ?-dicarbonyl compound represented by the following general formula (1): wherein each of R1 to R3 represents a monovalent hydrocarbon group or a halogen atom; R4 represents a hydrogen atom or a monovalent hydrocarbon group; and A is a group selected from a group represented by the following formula (2) and a group represented by —OR8: wherein each of R5 to R7 represents a monovalent hydrocarbon group or a halogen atom; and R8 represents a monovalent hydrocarbon group.Type: GrantFiled: February 5, 2019Date of Patent: October 1, 2019Assignee: SHIN-ETSU CHEMICAL CO., LTD.Inventors: Taiki Katayama, Takahiro Yamaguchi, Takafumi Sakamoto
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Publication number: 20190169373Abstract: Provided is a room temperature-curable resin composition containing an aluminum chelate compound. This aluminum chelate compound is an aluminum chelate compound having a ?-dicarbonyl compound represented by the following general formula (1): wherein each of R1 to R3 represents a monovalent hydrocarbon group or a halogen atom; R4 represents a hydrogen atom or a monovalent hydrocarbon group; and A is a group selected from a group represented by the following formula (2) and a group represented by —OR8: wherein each of R5 to R7 represents a monovalent hydrocarbon group or a halogen atom; and R8 represents a monovalent hydrocarbon group.Type: ApplicationFiled: February 5, 2019Publication date: June 6, 2019Applicant: SHIN-ETSU CHEMICAL CO., LTD.Inventors: Taiki KATAYAMA, Takahiro YAMAGUCHI, Takafumi SAKAMOTO
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Publication number: 20190085002Abstract: Provided are an organosilicon compound capable of improving the storage stability of a composition (curability after long-term storage); and a method for producing the same. The organosilicon compound has, in one molecule, at least one carboxylic acid ester group represented by the following general formula (1) and at least one hydrolyzable silyl group represented by the following general formula (2): —OC(?O)CH2R1??(1) wherein R1 represents a hydrogen atom or a methyl group; —SiR23-nYn??(2) wherein R2 represents a substituted or unsubstituted monovalent hydrocarbon group having 1 to 12 carbon atoms, Y represents a hydrolyzable group, and n represents an integer satisfying 1?n?3.Type: ApplicationFiled: March 8, 2017Publication date: March 21, 2019Applicant: Shin-Etsu Chemical Co., Ltd.Inventors: Taiki KATAYAMA, Isao IWASAKI, Takafumi SAKAMOTO
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Patent number: 10174058Abstract: Provided is a compound for imparting a thermal plasticity to an organic silicon resin. The compound is a novel vinyl silane compound represented by the following formula (1): wherein A independently represents a divalent hydrocarbon group having 1 to 6 carbon atoms; Y independently represents a substituted or unsubstituted monovalent hydrocarbon group having 1 to 12 carbon atoms.Type: GrantFiled: August 22, 2016Date of Patent: January 8, 2019Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Taiki Katayama, Masayuki Ikeno, Misaki Takai, Takafumi Sakamoto
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Publication number: 20180334467Abstract: Provided is a compound for imparting a thermal plasticity to an organic silicon resin. The compound is a novel vinyl silane compound represented by the following formula (1): wherein A independently represents a divalent hydrocarbon group having 1 to 6 carbon atoms; Y independently represents a substituted or unsubstituted monovalent hydrocarbon group having 1 to 12 carbon atoms.Type: ApplicationFiled: August 22, 2016Publication date: November 22, 2018Applicant: Shin-Etsu Chemical Co., Ltd.Inventors: Taiki KATAYAMA, Masayuki IKENO, Misaki TAKAI, Takafumi SAKAMOTO
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Publication number: 20180319824Abstract: The present invention provides: a novel organic titanium compound having an effect as an adhesion promoter by itself; a production method of such organic titanium compound; and a room temperature-curable resin composition containing such organic titanium compound both as a curing catalyst and as an adhesion promoter. Provided are an organic titanium compound represented by an average composition formula (I): Ti(OR1)4-a(Y3Si—A—O—CO—CH?C(O)R)a (wherein R1 represents a substituted or unsubstituted monovalent hydrocarbon group having 1 to 12 carbon atoms, R represents a substituted or unsubstituted monovalent hydrocarbon group having 1 to 12 carbon atoms, A represents a divalent hydrocarbon group having 3 to 6 carbon atoms, Y represents a hydrolyzable group, and a represents a number satisfying 0<a<4); a production method of such organic titanium compound; and a room temperature-curable resin composition that contains a room temperature-curable resin.Type: ApplicationFiled: July 16, 2018Publication date: November 8, 2018Applicant: SHIN-ETSU CHEMICAL CO., LTD.Inventors: Taiki KATAYAMA, Takafumi SAKAMOTO
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Patent number: 10005799Abstract: Provided is an organic silicon compound represented by the following general formula (1) (wherein R1 represents either an alkyl group that has 1 to 20 carbon atoms and may have a substituted group or a cycloalkyl group that has 3 to 20 carbon atoms and may have a substituted group; R2 represents either a hydrogen atom or a monovalent hydrocarbon group that has 1 to 20 carbon atoms and may have a substituted group, and R2 may be either identical or different; and each a independently represents an integer of 1 to 3). The novel silicon-containing compound of the present invention provides a cured product of a room temperature-curable organopolysiloxane composition that is particularly superior in fast curability.Type: GrantFiled: August 23, 2017Date of Patent: June 26, 2018Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Takahiro Yamaguchi, Takafumi Sakamoto, Taiki Katayama
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Publication number: 20180037596Abstract: Provided is an organic silicon compound represented by the following general formula (1) (wherein R1 represents either an alkyl group that has 1 to 20 carbon atoms and may have a substituted group or a cycloalkyl group that has 3 to 20 carbon atoms and may have a substituted group; R2 represents either a hydrogen atom or a monovalent hydrocarbon group that has 1 to 20 carbon atoms and may have a substituted group, and R2 may be either identical or different; and each a independently represents an integer of 1 to 3). The novel silicon-containing compound of the present invention provides a cured product of a room temperature-curable organopolysiloxane composition that is particularly superior in fast curability.Type: ApplicationFiled: August 23, 2017Publication date: February 8, 2018Applicant: SHIN-ETSU CHEMICAL CO., LTD.Inventors: Takahiro YAMAGUCHI, Takafumi SAKAMOTO, Taiki KATAYAMA
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Publication number: 20170275309Abstract: The present invention provides: a novel organic titanium compound having an effect as an adhesion promoter by itself; a production method of such organic titanium compound; and a room temperature-curable resin composition containing such organic titanium compound both as a curing catalyst and as an adhesion promoter. Provided are an organic titanium compound represented by an average composition formula (I): Ti(OR1)4-a(Y3Si-A-O—CO—CH?C(O)R)a (wherein R1 represents a substituted or unsubstituted monovalent hydrocarbon group having 1 to 12 carbon atoms, R represents a substituted or unsubstituted monovalent hydrocarbon group having 1 to 12 carbon atoms, A represents a divalent hydrocarbon group having 3 to 6 carbon atoms, Y represents a hydrolyzable group, and a represents a number satisfying 0<a<4); a production method of such organic titanium compound; and a room temperature-curable resin composition that contains a room temperature-curable resin.Type: ApplicationFiled: June 23, 2015Publication date: September 28, 2017Applicant: Shin-Etsu Chemical Co., Ltd.Inventors: Taiki KATAYAMA, Takafumi SAKAMOTO
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Publication number: 20170037066Abstract: Provided is an organic silicon compound represented by the following general formula (1) (wherein R1 represents either an alkyl group that has 1 to 20 carbon atoms and may have a substituted group or a cycloallcyl group that has 3 to 20 carbon atoms and may have a substituted group; R2 represents either a hydrogen atom or a monovalent hydrocarbon group that has 1 to 20 carbon atoms and may have a substituted group, and R2 may be either identical or different; and each a independently represents an integer of 1 to 3). The novel silicon-containing compound of the present invention provides a cured product of a room temperature-curable organopolysiloxane composition that is particularly superior in fast curability.Type: ApplicationFiled: February 2, 2015Publication date: February 9, 2017Applicant: SHIN-ETSU CHEMICAL CO., LTD.Inventors: Takahiro YAMAGUCHI, Takafumi SAKAMOTO, Taiki KATAYAMA