Patents by Inventor Munenao Hirokami

Munenao Hirokami 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).

  • Patent number: 10995106
    Abstract: A composition according to the present invention contains 100 parts by mass of a component (A) and 1-200 parts by mass of a component (B) and is solid at 25° C., the solid form being achieved at 25° C. without spray drying, impregnation into wax, or the like, and said composition is useful as an additive for a paint composition and an adhesive composition. The component (A) is an organic silicon compound represented by general formula (1), and the component (B) is at least one of organic silicon compounds represented by general formulas (2) and (3) (R1 and R2 represent, independently of each other, an alky group having 1-10 carbon atoms or the like, R3 and R4 represent, independently of each other, a divalent hydrocarbon group having 1-20 carbon atoms, m represents an integer from 1 to 3, R5 represents an alkyl group having 1-10 carbon atoms or the like, and R6 represents a divalent hydrocarbon group having 1-20 carbon atoms; however, an oxygen atom, a sulfur atom, etc.
    Type: Grant
    Filed: November 2, 2017
    Date of Patent: May 4, 2021
    Assignee: SHIN-ETSU CHEMICAL CO., LTD.
    Inventor: Munenao Hirokami
  • Patent number: 10988493
    Abstract: Provided is an organic silicon compound represented by formula (1), which when added to a rubber composition, can improve the wet traction performance of a cured product of the rubber composition, and significantly reduce a hysteresis loss of the cured product, and provides a rubber composition that can be used to implement a desired tire having high fuel efficiency. (In the formula, each R1 independently represents an alkyl group having 1-10 carbon atoms or an aryl group having 6-10 carbon atoms, each R2 independently represents an alkyl group having 1-10 carbon atoms or an aryl group having 6-10 carbon atoms, f represents a number equal to or larger than 0, e, g, and h each independently represent a number equal to or larger than 0, and m represents an integer of 1-3. Note that the repeating units can be present in any order.
    Type: Grant
    Filed: August 18, 2016
    Date of Patent: April 27, 2021
    Assignee: SHIN-ETSU CHEMICAL CO., LTD.
    Inventor: Munenao Hirokami
  • Patent number: 10975106
    Abstract: To provide an organic silicon compound having an average structural formula (1). (Z represents a 2 to 20-valent group containing an organosiloxane structure, each R1 independently represents an alkyl group or an aryl group, each R2 independently represents an alkyl group or an aryl group, each R3 independently represents a hydrogen atom, an alkyl group, an alkoxy group, or an O. (oxy radical), each R4 independently represents a hydrogen atom or an alkyl group, each A1 independently represents a single bond or an alkylene group free of a hetero atom, each A2 independently represents a single bond or a divalent linking group containing a hetero atom, m is a number of 1 to 3, p is a number of 1 to 10, q is a number of 1 to 10, and p+q represents a number satisfying from 2 to 20 corresponding to the valency number of Z.
    Type: Grant
    Filed: February 6, 2020
    Date of Patent: April 13, 2021
    Assignee: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Tetsuro Yamada, Munenao Hirokami
  • Patent number: 10941317
    Abstract: The present invention pertains to a room-temperature-curable organopolysiloxane composition containing (A) an organopolysiloxane having the hydrolyzable silyl-group-containing monovalent organic group represented by formula (1) (R1 represents a substituted or unsubstituted C1-10 alkyl group or a substituted or unsubstituted C6-10 aryl group, R2 represents a substituted or unsubstituted C1-10 alkyl group or a substituted or unsubstituted C6-10 aryl group, and R3 represents a substituted or unsubstituted C1-20 alkyl group or a hydrogen atom; M is an integer from 1 to 3, and n is an integer of 2 or more; and the broken line represents atomic bonding), (B) a hydrolyzable organosilane compound and/or a partially hydrolyzed condensate thereof, (C) a curing catalyst, and (F) a bleed oil.
    Type: Grant
    Filed: March 20, 2018
    Date of Patent: March 9, 2021
    Assignee: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Akitsugu Fujiwara, Tetsuro Yamada, Munenao Hirokami
  • Patent number: 10899779
    Abstract: A method for manufacturing an amino group-containing organosilicon compound of the following formula (1): wherein each R1 independently represents an alkyl group having 1 to 10 carbon atoms, etc., each of R2 and R3 represents a functional group of the following formula (4), etc., m represents an integer of 1 to 3, and n represents an integer of 1 to 12, wherein an asterisk * represents a bond with an adjacent atom, p represents an integer of 1 to 12, and q represents an integer of 1 to 10, the method comprising: (A) reacting an amine compound of the following formula (2): wherein R2 and R3 mean the same as above with a halogen group-containing organosilicon compound of the following formula (3): wherein X represents a chlorine atom, etc., and R1 and n mean the same as above; (B) removing an amine hydrohalide produced in the step (A), by liquid-liquid separation; and (C) neutralizing an organic layer obtained in the step (B), using a base which amounts 0.1 to 0.
    Type: Grant
    Filed: December 18, 2019
    Date of Patent: January 26, 2021
    Assignee: SHIN-ETSU CHEMICAL CO., LTD.
    Inventor: Munenao Hirokami
  • Patent number: 10851261
    Abstract: An epoxy resin composition comprising an epoxy resin, a curing agent, (A) a carboxyl-containing benzotriazole derivative, and (B) an alkoxysilyl-containing aminoalkylsilane derivative is suited for encapsulating semiconductor devices. The sum of (A)+(B) is 0.5-5.0 pbw per 100 pbw of the sum of the epoxy resin and the curing agent, and a molar ratio (A)/(B) is 0.5-1.5. The composition is free of sulfur and highly adhesive to metal substrates.
    Type: Grant
    Filed: April 8, 2019
    Date of Patent: December 1, 2020
    Assignee: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Hiroki Oishi, Shoichi Osada, Ryuhei Yokota, Munenao Hirokami
  • Patent number: 10844196
    Abstract: This thermally-conductive silicone composition comprises: (A) an organopolysiloxane having two or more alkenyl groups per molecule, and having a kinetic viscosity of 10-100,000 mm2/s at 25° C., (B) a hydrolyzable methyl polysiloxane which is represented by formula (1) (R1 represents an alkyl group, and a is 5-100) and of which one end is trifunctional, (C) a thermally-conductive filler having a thermal conductivity of 10 W/m·° C. or more, (D) an organohydrogen polysiloxane having two or more Si—H groups per molecule, (E) a catalyst selected from the group consisting of platinum and platinum compounds, and (F) a benzotriazole derivative represented by formula (2) (R2 represents H or a monovalent hydrocarbon group, and R3 represents a monovalent organic group). The composition can inhibit the decrease of the curing speed.
    Type: Grant
    Filed: October 13, 2017
    Date of Patent: November 24, 2020
    Assignee: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Kenichi Tsuji, Nobu Kato, Munenao Hirokami
  • Patent number: 10815323
    Abstract: A silane-modified polymer having a polyisoprene skeleton and a hydrolyzable silyl group is useful as a rubber compounding ingredient. When added to a rubber composition, it is effective for improving the wet grip and substantially reducing the hysteresis loss of the cured rubber composition. Low fuel consumption tires may be manufactured from the rubber composition.
    Type: Grant
    Filed: August 30, 2017
    Date of Patent: October 27, 2020
    Assignee: SHIN-ETSU CHEMICAL CO., LTD.
    Inventor: Munenao Hirokami
  • Publication number: 20200317701
    Abstract: Provided is an organic silicon compound represented by formula (1), which when added to a rubber composition, can improve the wet traction performance of a cured product of the rubber composition, and significantly reduce a hysteresis loss of the cured product, and provides a rubber composition that can be used to implement a desired tire having high fuel efficiency. (In the formula, each R1 independently represents an alkyl group having 1-10 carbon atoms or an aryl group having 6-10 carbon atoms, each R2 independently represents an alkyl group having 1-10 carbon atoms or an aryl group having 6-10 carbon atoms, f represents a number equal to or larger than 0, e, g, and h each independently represent a number equal to or larger than 0, and m represents an integer of 1-3. Note that the repeating units can be present in any order.
    Type: Application
    Filed: August 18, 2016
    Publication date: October 8, 2020
    Applicant: SHIN-ETSU CHEMICAL CO., LTD.
    Inventor: Munenao HIROKAMI
  • Publication number: 20200270285
    Abstract: To provide an organic silicon compound having an average structural formula (1). (Z represents a 2 to 20-valent group containing an organosiloxane structure, each R1 independently represents an alkyl group or an aryl group, each R2 independently represents an alkyl group or an aryl group, each R3 independently represents a hydrogen atom, an alkyl group, an alkoxy group, or an O. (oxy radical), each R4 independently represents a hydrogen atom or an alkyl group, each A1 independently represents a single bond or an alkylene group free of a hetero atom, each A2 independently represents a single bond or a divalent linking group containing a hetero atom, m is a number of 1 to 3, p is a number of 1 to 10, q is a number of 1 to 10, and p+q represents a number satisfying from 2 to 20 corresponding to the valency number of Z.
    Type: Application
    Filed: February 6, 2020
    Publication date: August 27, 2020
    Applicant: Shin-Etsu Chemical Co., Ltd.
    Inventors: Tetsuro YAMADA, Munenao HIROKAMI
  • Publication number: 20200214968
    Abstract: A urea group-containing organopolysiloxane represented by the following formula (1), wherein, R1 is —R5—NHCONH2 (R5 is a divalent hydrocarbon group), R2 is any of a hydrogen atom, a hydroxy group, an alkoxy group, an alkyl group, a fluoroalkyl group, an aryl group, and an aralkyl group, R3 is R1 or R2, and R4 is an organopolysiloxane segment represented by the following formula (2), (Q is an oxygen atom or a divalent hydrocarbon group), the urea group-containing organopolysiloxane represented by the formula (1) has one or more R1 in the molecule, when “c” is 0, “a”+“d”+“f”+“h”+“i” is 1 or more. Accordingly, there is provided a urea group-containing organopolysiloxane that can obtain a cosmetic having excellent cosmetic durability while maintaining a light feel and good spreadability, and a method for manufacturing the same, as well as a cosmetic containing the same.
    Type: Application
    Filed: August 10, 2018
    Publication date: July 9, 2020
    Applicant: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Masanao KAMEI, Munenao HIROKAMI, Yuji ANDO
  • Publication number: 20200216477
    Abstract: A method for manufacturing an amino group-containing organosilicon compound of the following formula (1): wherein each R1 independently represents an alkyl group having 1 to 10 carbon atoms, etc., each of R2 and R3 represents a functional group of the following formula (4), etc., m represents an integer of 1 to 3, and n represents an integer of 1 to 12, wherein an asterisk * represents a bond with an adjacent atom, p represents an integer of 1 to 12, and q represents an integer of 1 to 10, the method comprising: (A) reacting an amine compound of the following formula (2): wherein R2 and R3 mean the same as above with a halogen group-containing organosilicon compound of the following formula (3): wherein X represents a chlorine atom, etc., and R1 and n mean the same as above; (B) removing an amine hydrohalide produced in the step (A), by liquid-liquid separation; and (C) neutralizing an organic layer obtained in the step (B), using a base which amounts 0.1 to 0.
    Type: Application
    Filed: December 18, 2019
    Publication date: July 9, 2020
    Applicant: Shin-Etsu Chemical Co., Ltd.
    Inventor: Munenao HIROKAMI
  • Publication number: 20200199302
    Abstract: An organic silicon compound-modified copolymer having structural units represented by formula (1) and formula (2) and having a hydroxyl group at at least one end has excellent compatibility with alcohol compounds and isocyanate compounds and also gives a cured product having excellent water repellency and moisture resistance. (In the formulas, an asterisk * represents a bond to an adjacent structural unit, each R1 independently represents a C1-10 alkyl group or C6-10 aryl group, and n represents an integer of 1 or higher.
    Type: Application
    Filed: April 10, 2018
    Publication date: June 25, 2020
    Applicant: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Munenao HIROKAMI, Yuji ANDO
  • Publication number: 20200087327
    Abstract: A method for producing an ureido group-containing organosilicon compound includes the following steps (I) and (II): (I): a step of obtaining a compound represented by formula (1) by reacting urea and an amino group-containing organosilicon compound represented by formula (3): wherein R1 represents an alkyl group having 1 to 10 carbon atoms or the like, R3 represents a hydrogen atom or the like, Me represents a methyl group, m represents an integer of 1 to 3, and n represents an integer of 1 to 12, wherein R2 represents a hydrogen atom or the like, and R1, Me, m, and n represent the same meaning as described above; and (II): a step of further reacting by supplying the amino group-containing organosilicon compound represented by formula (3) to a mixture containing a compound represented by formula (1) and urea.
    Type: Application
    Filed: September 17, 2019
    Publication date: March 19, 2020
    Applicant: Shin-Etsu Chemical Co., Ltd.
    Inventors: Munenao HIROKAMI, Katsuhiro UEHARA, Toru IIJIMA
  • Publication number: 20200056075
    Abstract: Provided are: a removable radiation-curable silicone composition which has excellent radiation curability and gives cured objects having excellent adhesiveness to the substrates; and a release sheet. The removable radiation-curable silicone composition comprises the following components (A), (B), (C), and (D): (A) 100 parts by mass of an organopolysiloxane having an alkenyl group; (B) 1-30 parts by mass of an organopolysiloxane having a mercaptoalkyl group; (C) 0.1-5 parts by mass of a compound having a plurality of acryl groups in the molecule; and (D) 0.1-15 parts by mass of a radical polymerization initiator.
    Type: Application
    Filed: April 3, 2018
    Publication date: February 20, 2020
    Applicant: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Kenji TANAKA, Shunji AOKI, Munenao HIROKAMI, Tetsuro YAMADA
  • Publication number: 20200048284
    Abstract: A composition according to the present invention contains 100 parts by mass of a component (A) and 1-200 parts by mass of a component (B) and is solid at 25° C., the solid form being achieved at 25° C. without spray drying, impregnation into wax, or the like, and said composition is useful as an additive for a paint composition and an adhesive composition. The component (A) is an organic silicon compound represented by general formula (1), and the component (B) is at least one of organic silicon compounds represented by general formulas (2) and (3) (R1 and R2 represent, independently of each other, an alky group having 1-10 carbon atoms or the like, R3 and R4 represent, independently of each other, a divalent hydrocarbon group having 1-20 carbon atoms, m represents an integer from 1 to 3, R5 represents an alkyl group having 1-10 carbon atoms or the like, and R6 represents a divalent hydrocarbon group having 1-20 carbon atoms; however, an oxygen atom, a sulfur atom, etc.
    Type: Application
    Filed: November 2, 2017
    Publication date: February 13, 2020
    Applicant: SHIN-ETSU CHEMICAL CO., LTD.
    Inventor: Munenao HIROKAMI
  • Publication number: 20200040208
    Abstract: Provided is a room temperature-vulcanizing silane-containing resin composition containing: (A) 100 parts by mass of a silane-modified polybutadiene compound represented by formula (1) (In the formula, each R1 is independently a substituted or unsubstituted monovalent hydrocarbon group having 1 to 12 carbons; each R2 is independently a substituted or unsubstituted monovalent hydrocarbon group having 1 to 12 carbons; f is a number equal to or greater than 0; e and g are numbers greater than 0; m is an integer from 1 to 3; and the sequence of the individual repeat units may be any sequence.); (B) 0.5 to 20 parts by mass of a hydrolyzable organosilane compound having in each molecule an average of at least two silicon atom-bonded hydrolyzable groups, and/or the partial hydrolysis condensate of this hydrolyzable organosilane compound; and (C) 0.1 to 10 parts by mass of a curing catalyst.
    Type: Application
    Filed: December 22, 2017
    Publication date: February 6, 2020
    Applicant: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Akitsugu FUJIWARA, Munenao HIROKAMI
  • Publication number: 20200032103
    Abstract: The present invention pertains to a room-temperature-curable organopolysiloxane composition containing (A) an organopolysiloxane having the hydrolyzable silyl-group-containing monovalent organic group represented by formula (1) (R1 represents a substituted or unsubstituted C1-10 alkyl group or a substituted or unsubstituted C6-10 aryl group, R2 represents a substituted or unsubstituted C1-10 alkyl group or a substituted or unsubstituted C6-10 aryl group, and R3 represents a substituted or unsubstituted C1-20 alkyl group or a hydrogen atom; M is an integer from 1 to 3, and n is an integer of 2 or more; and the broken line represents atomic bonding), (B) a hydrolyzable organosilane compound and/or a partially hydrolyzed condensate thereof, (C) a curing catalyst, and (F) a bleed oil.
    Type: Application
    Filed: March 20, 2018
    Publication date: January 30, 2020
    Applicant: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Akitsugu FUJIWARA, Tetsuro YAMADA, Munenao HIROKAMI
  • Patent number: 10544281
    Abstract: Provided is an addition-curable silicone rubber composition containing (A) an alkenyl group-containing organopolysiloxane having alkenyl groups bonded to at least two silicon atoms per molecule, (B) an organohydrogenpolysiloxane containing hydrogen atoms bonded to at least two silicon atoms per molecule, (C) a platinum catalyst, and (D) a benzotriazole derivative represented by general formula (I) (in the formula, R1 is a hydrogen atom or monovalent hydrocarbon group, R2 is a monovalent organic group) that makes it possible to provide silicone rubber that can lower the compression set without harming the curing rate and suppress discoloration after a heat resistance test.
    Type: Grant
    Filed: June 7, 2016
    Date of Patent: January 28, 2020
    Assignee: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Nobu Kato, Munenao Hirokami
  • 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