Patents by Inventor Haruo Sasaki

Haruo Sasaki 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: 10308760
    Abstract: The invention is to provide a polycarbonate resin composition having excellent light resistance, transparency, hue, heat resistance, thermal stability, and mechanical strength. The invention relates to a polycarbonate resin composition which includes a polycarbonate resin at least containing structural units derived from a dihydroxy compound having the portion represented by the following general formula (1) as part of the structure thereof, the polycarbonate resin composition giving a molded object which has a haze of 12 or less as measured in accordance with a specific manner. (The case where the portion represented by the general formula (1) is part of —CH2—O—H is excluded). [Chem.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: June 4, 2019
    Assignee: MITSUBISHI CHEMICAL CORPORATION
    Inventor: Haruo Sasaki
  • Publication number: 20180273748
    Abstract: Provided is an automobile interior/exterior member including a thermoplastic resin compound containing, at a predetermined mixing ratio, a component (A) as polycarbonate resin which has a constitutional unit derived from a predetermined dihydroxy compound and a constitutional unit derived from predetermined cyclohexane dimethanol and whose content ratio of the constitutional unit derived from the predetermined dihydroxy compound and the constitutional unit derived from the predetermined cyclohexane dimethanol is 69/31 to 71/29 in units of molar ratio, a component (B) as butyl acrylate methyl methacrylate styrene-based rubber, a component (C) as dibutyl hydroxy toluene, a component (D) as a benzotriazole-based light stabilizer, and a component (E) as a hindered amine-based light stabilizer.
    Type: Application
    Filed: January 13, 2017
    Publication date: September 27, 2018
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Yohei ICHIHARA, Haruo SASAKI
  • Publication number: 20180237636
    Abstract: An interior and exterior member for an automobile includes a thermoplastic resin composition including components (A) and (B). The component (A) is a polycarbonate resin mixture including a structural unit derived from a dihydroxy compound and a structural unit derived from cyclohexanedimethanol, wherein the structural unit is in an amount accounting for from 56 mol % to 60 mol % of the total amount of the structural unit and the structural unit derived from cyclohexanedimethanol, and the component (B) is butadiene-butyl acrylate-methyl methacrylate rubber. The thermoplastic resin composition further includes dibutylhydroxytoluene in an amount accounting for from 0.005 parts to 0.015 parts by mass, a benzotriazole-based light resistance stabilizer in an amount accounting for from 0.08 parts to 0.12 parts by mass, and a hindered amine-based light resistance stabilizer in an amount accounting for from 0.04 parts to 0.
    Type: Application
    Filed: August 5, 2016
    Publication date: August 23, 2018
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Yohei ICHIHARA, Haruo SASAKI
  • Publication number: 20170240741
    Abstract: Disclosed herein is an interior/exterior automotive trim component in which each of carbonate copolymers forming a polycarbonate resin composition is comprised of structural units derived from two or more different dihydroxy compounds. The structural units derived from the dihydroxy compounds include an ISB unit and a CHDM unit. In every one of the plurality of carbonate copolymers that form the polycarbonate resin composition, a molar ratio of the ISB unit to every dihydroxy compound unit in the carbonate copolymer is equal to or greater than 30 mol %. The molar ratio of the ISB unit to the CHDM unit in the polycarbonate resin composition satisfies 53/47?ISB unit/CHDM unit?56/44.
    Type: Application
    Filed: December 3, 2015
    Publication date: August 24, 2017
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Yohei ICHIHARA, Haruo SASAKI
  • Patent number: 9670359
    Abstract: An object of the present invention is to provide a polycarbonate resin composition and a molded article, which are excellent in jet-blackness, image sharpness, impact resistance, scratch resistance owing to high hardness, flame retardancy and heat retention stability. The present invention provides a resin composition comprising a polycarbonate resin comprising a structural unit derived from a cyclic ether structure-containing dihydroxy compound and a coloring agent, which is a polycarbonate resin composition having an L* value of 6 or less as measured by the reflected light method of JIS K7105; and a molded article using the resin composition. The resin composition and the molded article of the present invention can be used over a wide range of fields allowing a product to be imparted with a high-grade appearance and a dignified impression.
    Type: Grant
    Filed: August 16, 2013
    Date of Patent: June 6, 2017
    Assignee: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Hiroyoshi Kaito, Haruo Sasaki, Masashi Yokogi
  • Publication number: 20160053040
    Abstract: [Object] Provided is a reinforcing agent for resin that is able to impart excellent impact resistance, resistance to thermal coloration, and resistance to moist heat to a polycarbonate resin. [Solving Means] Disclosed is a reinforcing agent for polycarbonate resin which includes a rubber-like graft polymer, in which a quantity of the ?YI value that is increased by a heat treatment at a temperature of 140° C. for 12 hours and measured for a molded article obtained by molding 3 parts by mass of the reinforcing agent for polycarbonate resin and 97 parts by mass of an aromatic polycarbonate resin having a viscosity average molecular weight of 24,000 under a specific condition is 36 or less and a quantity of the ?MFR value increased by a heat treatment for 60 hours under a condition of a temperature of 120° C. and a relative humidity of 100% is 3 or less. Disclosed is also a resin composition including the reinforcing agent for polycarbonate resin.
    Type: Application
    Filed: April 4, 2014
    Publication date: February 25, 2016
    Applicant: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Yuichiro FUJIKAWA, Shinji MATSUOKA, Mitsufumi NODONO, Hiroaki OTONARI, Haruo SASAKI
  • Patent number: 9006351
    Abstract: The invention is to provide a polycarbonate resin composition and a molded polycarbonate resin article which combine excellent transparency and strength and which are suitable for use in the field of building materials, electrical/electronic field, automotive field, field of optical parts, etc. The invention relates to a polycarbonate resin composition containing a polycarbonate resin and an impact strength modifier, the polycarbonate resin containing structural units which are derived from a dihydroxy compound that has the portion represented by the following general formula (1) as part of the structure thereof and having a glass transition temperature lower than 145° C. and a molded polycarbonate resin article obtained by molding the composition. The polycarbonate resin composition gives a molded object having a thickness of 3 mm which has a total light transmittance of 60% or higher.
    Type: Grant
    Filed: January 14, 2013
    Date of Patent: April 14, 2015
    Assignees: Mitsubishi Chemical Corporation, Mitsubishi Plastics, Inc.
    Inventors: Masashi Yokogi, Kazuya Tanaka, Haruo Sasaki, Akira Kosuge
  • Patent number: 8895663
    Abstract: The present invention relates to a polycarbonate resin composition, comprising: a polycarbonate resin containing a structural unit derived from a dihydroxy compound having a moiety represented by the following formula (1) [provided that a case where the moiety represented by formula (1) is a moiety constituting —CH2—O—H is excluded]; and an elastomer composed of a core•shell structure, wherein a core layer of the elastomer is at least one member selected from the group consisting of an alkyl (meth)acrylate and a (meth)acrylic acid, and a polycarbonate resin molded article obtained by molding the polycarbonate resin composition: CH2—O??(1).
    Type: Grant
    Filed: September 30, 2013
    Date of Patent: November 25, 2014
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Haruo Sasaki, Tomohiko Tanaka
  • Patent number: 8889790
    Abstract: The present invention relates to a polycarbonate resin composition, comprising: a polycarbonate resin containing a structural unit derived from a dihydroxy compound having a moiety represented by the following formula (1) [provided that a case where the moiety represented by formula (1) is a moiety constituting —CH2—O—H is excluded]; and an elastomer composed of a core?shell structure, wherein a core layer of the elastomer is composed of a butadiene-styrene copolymer, and a polycarbonate resin molded article obtained by molding the polycarbonate resin composition: CH2—O??(1).
    Type: Grant
    Filed: September 30, 2013
    Date of Patent: November 18, 2014
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Haruo Sasaki, Tomohiko Tanaka
  • Patent number: 8742057
    Abstract: A polycarbonate resin composition (X), comprises: (A) a polycarbonate resin containing (a) a structural unit derived from a dihydroxy compound having a moiety represented by the following formula (1) in a part of a structure; and (B) an aromatic polycarbonate resin, wherein a reduced viscosity of the aromatic polycarbonate resin (B) is 0.55 dl/g or less, a proportion of the aromatic polycarbonate resin (B) in the polycarbonate resin composition (X) is 30 wt % or more, and a total light transmittance of the polycarbonate resin composition (X) is 90% or less: CH2—O??(1).
    Type: Grant
    Filed: August 19, 2013
    Date of Patent: June 3, 2014
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Masashi Yokogi, Haruo Sasaki
  • Publication number: 20140031493
    Abstract: The present invention relates to a polycarbonate resin composition, comprising: a polycarbonate resin containing a structural unit derived from a dihydroxy compound having a moiety represented by the following formula (1) [provided that a case where the moiety represented by formula (1) is a moiety constituting —CH2—O—H is excluded]; and an elastomer composed of a core?shell structure, wherein a core layer of the elastomer is composed of a butadiene-styrene copolymer, and a polycarbonate resin molded article obtained by molding the polycarbonate resin composition: ?CH2—O???(1)
    Type: Application
    Filed: September 30, 2013
    Publication date: January 30, 2014
    Applicant: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Haruo SASAKI, Tomohiko Tanaka
  • Publication number: 20140031494
    Abstract: The present invention relates to a polycarbonate resin composition, comprising: a polycarbonate resin containing a structural unit derived from a dihydroxy compound having a moiety represented by the following formula (1) [provided that a case where the moiety represented by formula (1) is a moiety constituting —CH2—O—H is excluded]; and an elastomer composed of a core•shell structure, wherein a core layer of the elastomer is at least one member selected from the group consisting of an alkyl (meth)acrylate and a (meth)acrylic acid, and a polycarbonate resin molded article obtained by molding the polycarbonate resin composition: ?CH2—O???(1)
    Type: Application
    Filed: September 30, 2013
    Publication date: January 30, 2014
    Applicant: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Haruo Sasaki, Tomohiko Tanaka
  • Publication number: 20130331514
    Abstract: An object of the present invention is to provide a polycarbonate resin composition and a molded article, which are excellent in jet-blackness, image sharpness, impact resistance, scratch resistance owing to high hardness, flame retardancy and heat retention stability. The present invention provides a resin composition comprising a polycarbonate resin comprising a structural unit derived from a cyclic ether structure-containing dihydroxy compound and a coloring agent, which is a polycarbonate resin composition having an L* value of 6 or less as measured by the reflected light method of JIS K7105; and a molded article using the resin composition. The resin composition and the molded article of the present invention can be used over a wide range of fields allowing a product to be imparted with a high-grade appearance and a dignified impression.
    Type: Application
    Filed: August 16, 2013
    Publication date: December 12, 2013
    Applicant: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Hiroyoshi KAITO, Haruo Sasaki, Masashi Yokogi
  • Publication number: 20130331527
    Abstract: A polycarbonate resin composition (X), comprises: (A) a polycarbonate resin containing (a) a structural unit derived from a dihydroxy compound having a moiety represented by the following formula (1) in a part of a structure; and (B) an aromatic polycarbonate resin, wherein a reduced viscosity of the aromatic polycarbonate resin (B) is 0.55 dl/g or less, a proportion of the aromatic polycarbonate resin (B) in the polycarbonate resin composition (X) is 30 wt % or more, and a total light transmittance of the polycarbonate resin composition (X) is 90% or less: ?CH2—O???(1).
    Type: Application
    Filed: August 19, 2013
    Publication date: December 12, 2013
    Applicant: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Masashi YOKOGI, Haruo Sasaki
  • Patent number: 8481625
    Abstract: The present invention relates to a polycarbonate resin composition (X) which includes a polycarbonate resin (A) and an aromatic polycarbonate resin (B), the polycarbonate resin (A) including a constitutional unit derived from a dihydroxy compound (a) having, as part of the structure thereof, a site represented by the following formula (1) and a constitutional unit derived from a dihydroxy compound (b) of an aliphatic hydrocarbon, wherein the proportion of the constitutional unit derived from the dihydroxy compound (b) of an aliphatic hydrocarbon based on all constitutional units each derived from a dihydroxy compound in the polycarbonate resin (A) is 45% by mole or more. (The case where the site represented by the formula (1) is part of —CH2—O—H is omitted.
    Type: Grant
    Filed: June 6, 2012
    Date of Patent: July 9, 2013
    Assignees: Mitsubishi Chemical Corporation, Mitsubishi Plastics, Inc.
    Inventors: Masashi Yokogi, Michiaki Fuji, Haruo Sasaki, Kazuya Tanaka, Kouichirou Taniguchi
  • Publication number: 20130012628
    Abstract: The invention is to provide a polycarbonate resin composition having excellent light resistance, transparency, hue, heat resistance, thermal stability, and mechanical strength. The invention relates to a polycarbonate resin composition which includes a polycarbonate resin at least containing structural units derived from a dihydroxy compound having the portion represented by the following general formula (1) as part of the structure thereof, the polycarbonate resin composition giving a molded object which has a haze of 12 or less as measured in accordance with a specific manner. (The case where the portion represented by the general formula (1) is part of —CH2—O—H is excluded). [Chem.
    Type: Application
    Filed: September 14, 2012
    Publication date: January 10, 2013
    Applicant: MITSUBISHI CHEMICAL CORPORATION
    Inventor: Haruo SASAKI
  • Publication number: 20120245265
    Abstract: The invention relates to: a polycarbonate resin composition which is a polycarbonate resin composition (X) including a polycarbonate resin (A) that contains structural units (a) derived from a dihydroxy compound having the portion represented by the following general formula (1) as part of the structure thereof and an aromatic polycarbonate resin (B), and in which the content of the aromatic polycarbonate resin (B) is 30% by weight or higher based on the polycarbonate resin composition (X); and a molded article obtained from the composition. [Chem. 1] ?CH2—O???(1) (The case where the portion represented by the general formula (1) is part of —CH2—O—H is excluded.
    Type: Application
    Filed: June 5, 2012
    Publication date: September 27, 2012
    Applicant: MITSUBISHI CHEMICAL CORPORATION
    Inventor: Haruo SASAKI
  • Publication number: 20120245264
    Abstract: The invention relates to: a polycarbonate resin composition which is a polycarbonate resin composition (X) including a polycarbonate resin (A) and an aromatic polycarbonate resin (B), the polycarbonate resin (A) containing structural units (a) derived from a dihydroxy compound having the portion represented by the following general formula (1) as part of the structure thereof and further containing a dihydroxy compound (b) of an alicyclic hydrocarbon, and in which the content of the dihydroxy compound (b) of an alicyclic hydrocarbon in the polycarbonate resin (A) is 35 mol % or higher; and a molded article obtained from the composition. [Chem. 1] ?CH2—O???(1) (The case where the portion represented by the general formula (1) is part of —CH2—O—H is excluded.
    Type: Application
    Filed: May 30, 2012
    Publication date: September 27, 2012
    Applicant: MITSUBISHI CHEMICAL CORPORATION
    Inventor: Haruo Sasaki
  • Publication number: 20120245266
    Abstract: The present invention relates to a polycarbonate resin composition (X) which includes a polycarbonate resin (A) and an aromatic polycarbonate resin (B), the polycarbonate resin (A) including a constitutional unit derived from a dihydroxy compound (a) having, as part of the structure thereof, a site represented by the following formula (1) and a constitutional unit derived from a dihydroxy compound (b) of an aliphatic hydrocarbon, wherein the proportion of the constitutional unit derived from the dihydroxy compound (b) of an aliphatic hydrocarbon based on all constitutional units each derived from a dihydroxy compound in the polycarbonate resin (A) is 45% by mole or more. (The case where the site represented by the formula (1) is part of —CH2—O—H is omitted.
    Type: Application
    Filed: June 6, 2012
    Publication date: September 27, 2012
    Applicants: MITSUBISHI PLASTICS, INC., MITSUBISHI CHEMICAL CORPORATION
    Inventors: Masashi Yokogi, Michiaki Fuji, Haruo Sasaki, Kazuya Tanaka, Kouichirou Taniguchi
  • Publication number: 20120238679
    Abstract: The invention is to provide a polycarbonate resin composition having excellent weatherability, transparency, hue, heat resistance, thermal stability, moldability, and mechanical strength and a molded article obtained therefrom. The invention relates to: a polycarbonate resin composition which includes a polycarbonate resin (A) containing constituent units derived from a dihydroxy compound (a) having the portion represented by the following formula (1) as part of the structure thereof and an aromatic polycarbonate resin (B) having a reduced viscosity of 0.50 dL/g or higher; and a molded article obtained from the composition. (The case where the portion represented by the following formula (1) is part of —CH2—O—H is excluded.) [Chem.
    Type: Application
    Filed: May 30, 2012
    Publication date: September 20, 2012
    Applicant: MITSUBISHI CHEMICAL CORPORATION
    Inventor: Haruo SASAKI