Patents by Inventor Minoru Yabukami

Minoru Yabukami 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: 20230046996
    Abstract: Provided is a polycarbonate-polyorganosiloxane copolymer, including: a polyorganosiloxane block (A-1) including a specific structural unit; and a polycarbonate block (A-2) formed of a specific repeating unit, wherein the polycarbonate-polyorganosiloxane copolymer satisfies the following condition (A) or (B): condition (A): a hexane extraction amount of the polycarbonate-polyorganosiloxane copolymer is 150 ppm or less; and condition (B): average weights of polyorganosiloxane blocks in polycarbonate-polyorganosiloxane copolymers obtained by separating the polycarbonate-polyorganosiloxane copolymer with a gel permeation chromatograph satisfy a specific expression.
    Type: Application
    Filed: December 7, 2020
    Publication date: February 16, 2023
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Minoru YABUKAMI, Shinobu YAMAO, Takafumi AKIMOTO, Masami SAWAI
  • Publication number: 20230052441
    Abstract: Provided is a polycarbonate-polyorganosiloxane copolymer, which is produced by using a diol monomer (a1) and a polyorganosiloxane (a2) satisfying the following condition, including: a polyorganosiloxane block (A-1) including a specific repeating unit; and a polycarbonate block (A-2) formed of a specific repeating unit: a mixture, which is obtained by bringing the diol monomer (a1), the polyorganosiloxane (a2), a carbonic acid diester, and a basic catalyst present at the same amount ratio as that at a time of production of the polycarbonate-polyorganosiloxane copolymer into contact with each other at from 100° C. to 250° C. for from 0.5 hour to 5 hours, has a haze value of 30 or less measured under conditions of 23° C. and an optical path length of 10 mm in conformity with ISO 14782:1999.
    Type: Application
    Filed: December 7, 2020
    Publication date: February 16, 2023
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Minoru YABUKAMI, Shinobu YAMAO
  • Publication number: 20230038766
    Abstract: Provided is a polycarbonate-polyorganosiloxane copolymer, including a polyorganosiloxane block (A-1) including a specific structural unit and a polycarbonate block (A-2) formed of a specific repeating unit.
    Type: Application
    Filed: December 7, 2020
    Publication date: February 9, 2023
    Applicant: IDEMITSU KOSAN CO.,LTD.
    Inventors: Minoru YABUKAMI, Shinobu YAMAO
  • Patent number: 11555114
    Abstract: Provided is a method of producing a polycarbonate-based resin composition, including mixing an aliphatic polycarbonate-based resin (A) containing a specific repeating unit (A-1), and at least one kind of aromatic thermoplastic resin (S) selected from the group consisting of an aromatic polycarbonate-based resin (B) containing a polycarbonate block formed of a specific repeating unit, an aromatic polyester-based resin (C) having a specific structural unit, and a polyarylate resin (D) having a specific structural unit in the presence of a transesterification catalyst at a temperature at which the resin components melt.
    Type: Grant
    Filed: July 23, 2018
    Date of Patent: January 17, 2023
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Shinobu Yamao, Minoru Yabukami
  • Publication number: 20210155797
    Abstract: Provided is a method of producing a polycarbonate-based resin composition, including mixing an aliphatic polycarbonate-based resin (A) containing a specific repeating unit (A-1), and at least one kind of aromatic thermoplastic resin (S) selected from the group consisting of an aromatic polycarbonate-based resin (B) containing a polycarbonate block formed of a specific repeating unit, an aromatic polyester-based resin (C) having a specific structural unit, and a polyarylate resin (D) having a specific structural unit in the presence of a transesterification catalyst at a temperature at which the resin components melt.
    Type: Application
    Filed: July 23, 2018
    Publication date: May 27, 2021
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Shinobu YAMAO, Minoru YABUKAMI
  • Publication number: 20200190321
    Abstract: A polycarbonate-based resin composition including: an aliphatic polycarbonate-based resin (A) containing a specific repeating unit; and a glass filler (B) having specific composition and having a total content of Li2O, Na2O, K2O, and Cs2O of 5 mass % or less, wherein the refractive index of the aliphatic polycarbonate-based resin (A) for light having a wavelength of 589.3 nm is 1.480 or more and 1.520 or less, wherein the refractive index of the glass filler (B) for light having a wavelength of 589.3 nm is 1.485 or more and 1.520 or less, and wherein a difference in refractive index between the aliphatic polycarbonate-based resin (A) and the glass filler (B) is 0.003 or less for light having a wavelength of 486.1 nm, is 0.001 or less for light having a wavelength of 589.3 nm, and is 0.001 or less for light having a wavelength of 656.3 nm.
    Type: Application
    Filed: April 23, 2018
    Publication date: June 18, 2020
    Applicants: IDEMITSU KOSAN CO., LTD, ASAHI FIBER GLASS CO., LTD.
    Inventors: Shinobu YAMAO, Minoru YABUKAMI, Keiji SEKINE, Peng ZHAO, Koji HAYATA
  • Publication number: 20150252226
    Abstract: A functionalized ?-olefin polymer having an ?-olefin polymer main chain and an alkoxysilyl group and satisfying the following (a) to (d): (a) The meso-pentad fraction [mmmm] is less than 20 mol %, or the meso-diad fraction [m] is less than 95 mol %. (b) The weight-average molecular weight (Mw) is from 1,000 to 500,000. (c) The alkoxysilyl group concentration in all the monomer units is from 0.01 to 50 mol %. (d) The ?-olefin polymer is a propylene homopolymer, a 1-butene homopolymer or a propylene-1-butene copolymer.
    Type: Application
    Filed: September 18, 2013
    Publication date: September 10, 2015
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Minoru Yabukami, Masami Kanamaru, Takenori Fujimura, Kazuhiro Hashima
  • Patent number: 8975202
    Abstract: The invention provides a polymerization catalyst produced by bringing components (A) to (D) into contact with one another in a hydrocarbon solvent at 30 to 60° C., wherein the component (A) is a transition metal compound, the component (B) is a solid boron compound capable of forming an ion pair with component (A), the component (C) is an organoaluminum compound, and the component (D) is one or more unsaturated hydrocarbon compounds selected from among an ?-olefin, an internal olefin, and a polyene; and the amounts of component (B) and component (C) are 1.2 to 4.0 mol and 5.0 to 50.0 mol, respectively, on the basis of 1 mol of component (A), which catalyst exhibits high activity and can be readily supplied to a polymerization reaction system. The invention also provides a method of storing the polymerization catalyst at 0 to 35° C.
    Type: Grant
    Filed: June 10, 2010
    Date of Patent: March 10, 2015
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Masami Kanamaru, Takenori Fujimura, Minoru Yabukami
  • Patent number: 8729284
    Abstract: A method for producing an anionized meso-form double-cross-linked ligand represented by formula (3), including: bringing a compound represented by formula (1) into contact with a compound represented by formula (2) at ?25° C. or less; and introducing an anionizing agent within 5 hours after the contact, wherein R1 to R10 are independently a hydrogen atom, a hydrocarbon group having 1 to 20 carbon atoms, or the like; A and A? are independently a cross-linking group containing an atom belonging to the 14th group of the periodic table; M and M? are independently an atom belonging to the 1st or the 2nd group of the periodic table.
    Type: Grant
    Filed: November 24, 2011
    Date of Patent: May 20, 2014
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Minoru Yabukami, Takuji Okamoto
  • Publication number: 20140031574
    Abstract: A method for producing an anionized meso-form double-cross-linked ligand represented by formula (3), including: bringing a compound represented by formula (1) into contact with a compound represented by formula (2) at ?25° C. or less; and introducing an anionizing agent within 5 hours after the contact, wherein R1 to R10 are independently a hydrogen atom, a hydrocarbon group having 1 to 20 carbon atoms, or the like; A and A? are independently a cross-linking group containing an atom belonging to the 14th group of the periodic table; M and M? are independently an atom belonging to the 1st or the 2nd group of the periodic table.
    Type: Application
    Filed: November 24, 2011
    Publication date: January 30, 2014
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Minoru Yabukami, Takuji Okamoto
  • Publication number: 20130102745
    Abstract: The present invention provides a catalyst composition and a method for producing an olefin polymer using the catalyst composition. The catalyst composition is prepared by bringing (A) a transition metal compound, (B) a solid boron compound capable of forming an ion pair with the component (A), (C) an organometallic compound and (D) a compound represented by the following general formula (XIV) and/or the following general formula (XV) into contact with each other in a hydrocarbon solvent, and enables a high catalyst concentration. Z5R14R15??(XIV) Z6R14R15R16??(XV) [In the formulae, Z5 represents an oxygen atom, etc.; Z6 represents a nitrogen atom, etc.; R14 to R16 each independently represent an organic group, and at least one of those organic groups is an organic group having at least 3 carbon atoms, and R14 to R16 may bond to each other to form a ring.
    Type: Application
    Filed: May 25, 2011
    Publication date: April 25, 2013
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Minoru Yabukami, Masami Kanamaru, Takenori Fujimura, Yutaka Minami
  • Publication number: 20120129683
    Abstract: The invention provides a polymerization catalyst produced by bringing components (A) to (D) into contact with one another in a hydrocarbon solvent at 30 to 60° C., wherein the component (A) is a transition metal compound, the component (B) is a solid boron compound capable of forming an ion pair with component (A), the component (C) is an organoaluminum compound, and the component (D) is one or more unsaturated hydrocarbon compounds selected from among an ?-olefin, an internal olefin, and a polyene; and the amounts of component (B) and component (C) are 1.2 to 4.0 mol and 5.0 to 50.0 mol, respectively, on the basis of 1 mol of component (A), which catalyst exhibits high activity and can be readily supplied to a polymerization reaction system. The invention also provides a method of storing the polymerization catalyst at 0 to 35° C.
    Type: Application
    Filed: June 10, 2010
    Publication date: May 24, 2012
    Applicant: Idemitsu Kosan Co., Ltd.
    Inventors: Masami Kanamaru, Takenori Fujimura, Minoru Yabukami