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).

  • Publication number: 20230017437
    Abstract: 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: Application
    Filed: December 7, 2020
    Publication date: January 19, 2023
    Applicant: Shin-Etsu Chemical Co., Ltd.
    Inventors: Yudai IMASAKA, Taiki KATAYAMA, Takafumi SAKAMOTO
  • Publication number: 20220289979
    Abstract: 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: Application
    Filed: August 20, 2020
    Publication date: September 15, 2022
    Applicant: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Taiki KATAYAMA, Tetsuro YAMADA, Munenao HIROKAMI
  • Publication number: 20220162393
    Abstract: 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: Application
    Filed: March 26, 2020
    Publication date: May 26, 2022
    Applicant: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Akira UTA, Shigeki YASUDA, Tetsuro YAMADA, Munenao HIROKAMI, Taiki KATAYAMA, Takafumi SAKAMOTO
  • Publication number: 20220106514
    Abstract: 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: Application
    Filed: January 16, 2020
    Publication date: April 7, 2022
    Applicant: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Akira UTA, Taiki KATAYAMA, Takafumi SAKAMOTO
  • Publication number: 20210324224
    Abstract: 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: Application
    Filed: August 21, 2019
    Publication date: October 21, 2021
    Applicant: Shin-Etsu Chemical Co., Ltd.
    Inventor: Taiki KATAYAMA
  • Patent number: 10870254
    Abstract: 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: Grant
    Filed: August 1, 2014
    Date of Patent: December 22, 2020
    Assignee: SEKISUI CHEMICAL CO., LTD.
    Inventors: Hirofumi Kitano, Hiroaki Inui, Taiki Katayama, Manabu Matsumoto, Kazuhiko Nakayama
  • Patent number: 10744744
    Abstract: 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: Grant
    Filed: August 2, 2013
    Date of Patent: August 18, 2020
    Assignee: SEKISUI CHEMICAL CO., LTD.
    Inventors: Hirofumi Kitano, Taiki Katayama
  • Patent number: 10626132
    Abstract: 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: Grant
    Filed: July 16, 2018
    Date of Patent: April 21, 2020
    Assignee: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Taiki Katayama, Takafumi Sakamoto
  • Patent number: 10544170
    Abstract: 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: Grant
    Filed: March 8, 2017
    Date of Patent: January 28, 2020
    Assignee: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Taiki Katayama, Isao Iwasaki, Takafumi Sakamoto
  • Publication number: 20190375769
    Abstract: 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: Application
    Filed: May 16, 2017
    Publication date: December 12, 2019
    Applicant: Shin-Etsu Chemical Co., Ltd.
    Inventors: Tetsuro YAMADA, Munenao HIROKAMI, Taiki KATAYAMA
  • Patent number: 10428183
    Abstract: 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: Grant
    Filed: February 5, 2019
    Date of Patent: October 1, 2019
    Assignee: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Taiki Katayama, Takahiro Yamaguchi, Takafumi Sakamoto
  • Publication number: 20190169373
    Abstract: 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: Application
    Filed: February 5, 2019
    Publication date: June 6, 2019
    Applicant: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Taiki KATAYAMA, Takahiro YAMAGUCHI, Takafumi SAKAMOTO
  • Publication number: 20190085002
    Abstract: 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: Application
    Filed: March 8, 2017
    Publication date: March 21, 2019
    Applicant: Shin-Etsu Chemical Co., Ltd.
    Inventors: Taiki KATAYAMA, Isao IWASAKI, Takafumi SAKAMOTO
  • Patent number: 10174058
    Abstract: 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: Grant
    Filed: August 22, 2016
    Date of Patent: January 8, 2019
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Taiki Katayama, Masayuki Ikeno, Misaki Takai, Takafumi Sakamoto
  • Publication number: 20180334467
    Abstract: 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: Application
    Filed: August 22, 2016
    Publication date: November 22, 2018
    Applicant: Shin-Etsu Chemical Co., Ltd.
    Inventors: Taiki KATAYAMA, Masayuki IKENO, Misaki TAKAI, Takafumi SAKAMOTO
  • Publication number: 20180319824
    Abstract: 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: Application
    Filed: July 16, 2018
    Publication date: November 8, 2018
    Applicant: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Taiki KATAYAMA, Takafumi SAKAMOTO
  • Patent number: 10005799
    Abstract: 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: Grant
    Filed: August 23, 2017
    Date of Patent: June 26, 2018
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Takahiro Yamaguchi, Takafumi Sakamoto, Taiki Katayama
  • Publication number: 20180037596
    Abstract: 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: Application
    Filed: August 23, 2017
    Publication date: February 8, 2018
    Applicant: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Takahiro YAMAGUCHI, Takafumi SAKAMOTO, Taiki KATAYAMA
  • Publication number: 20170275309
    Abstract: 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: Application
    Filed: June 23, 2015
    Publication date: September 28, 2017
    Applicant: Shin-Etsu Chemical Co., Ltd.
    Inventors: Taiki KATAYAMA, Takafumi SAKAMOTO
  • Publication number: 20170037066
    Abstract: 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: Application
    Filed: February 2, 2015
    Publication date: February 9, 2017
    Applicant: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Takahiro YAMAGUCHI, Takafumi SAKAMOTO, Taiki KATAYAMA