Patents by Inventor Hiroshi Niino

Hiroshi Niino 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: 20240026123
    Abstract: The present invention provides a resin additive capable of imparting low temperature impact properties to a resin material, a resin composition comprising the resin additive, and a molded article formed from the resin composition. The resin additive of the present invention is a polymer having a structural unit (a1) derived from the following monomer (1); the resin composition of the present invention comprises the resin additive and a resin material; and the molded article of the present invention is formed from the resin composition.
    Type: Application
    Filed: August 8, 2023
    Publication date: January 25, 2024
    Applicant: Mitsubishi Chemical Corporation
    Inventors: Yutaka AOKI, Hiroshi NIINO, Eiko OKAMOTO, Hiroyuki NISHII, Masahiro UEDA, Masashi IIMORI, Atsushi KUWAHARA
  • Publication number: 20230063756
    Abstract: A polymer composition, in which a differential distribution value in a differential molecular weight distribution curve of the polymer composition, as measured by gel permeation chromatography, satisfies Equation 1 and a maximum value of a normalized back-scattering intensity of a 35 wt % base oil solution of the polymer composition, where a size q of a scattering vector of small-angle X-ray scattering at 25° C. is in a range of 0.07 nm?1 or more and 2 nm?1 or less, is 40 cm?1 or more.
    Type: Application
    Filed: September 9, 2022
    Publication date: March 2, 2023
    Applicant: Mitsubishi Chemical Corporation
    Inventors: Hiroki Fukuta, Katsufumi Mochizuki, Fumiko Fujie, Takahiro Mukuda, Hiroshi Niino, Eiko Okamoto, Kazunari Matsumura, Hiroko Shinada, Hiroki Hamamoto
  • Patent number: 11498994
    Abstract: Provided is a block copolymer composition which contains a block copolymer having a specific molecular structure and has a molecular weight distribution within an appropriate range. A polymerizable composition containing a macromonomer (A) which has a group having a radical-reactive unsaturated double bond at one terminal of a poly(meth)acrylate segment, a vinyl monomer (B), and an organic iodine compound (C), or a polymerizable composition containing a macromonomer (A), a vinyl monomer (B), an azo-based radical polymerization initiator (E), and iodine is polymerized to obtain a block copolymer composition containing a block copolymer in which constitutional units of all blocks are derived from vinyl monomers and at least one block has a branched structure.
    Type: Grant
    Filed: November 22, 2018
    Date of Patent: November 15, 2022
    Assignees: Mitsubishi Chemical Corporation, Nanyang Technological University
    Inventors: Hiroshi Niino, Shunsuke Chatani, Shuyao Hsu, Atsushi Goto, Longqiang Xiao, Jun Jie Chang
  • Publication number: 20210403619
    Abstract: A high-molecular-weight compound having a plurality of polymer chains linked through a divalent or higher-valent linking group, in which the divalent or higher-valent linking group has a thiol group and at least one of a thioether structure and a thiourethane structure, and a ratio of an absolute weight-average molecular weight to a relative weight-average molecular weight (absolute Mw/relative Mw) of the high-molecular-weight compound is 1.25 or more; and a method for producing the same are provided.
    Type: Application
    Filed: August 27, 2021
    Publication date: December 30, 2021
    Applicant: Mitsubishi Chemical Corporation
    Inventors: Shunsuke Chatani, Yuki Miyahara, Hiroshi Niino, Masashi Ikawa, Haruki Okada, Fumiko Fujie
  • Publication number: 20210347981
    Abstract: An object of the present invention is to provide an impact modifier that provides impact resistance to a molded object obtained by molding a resin composition such as polycarbonate at a high temperature, and exhibits more excellent heat stability (preservation of mechanical properties after a wet heat test, discoloration, and flame retardance), and a thermoplastic resin composition including the impact modifier. The polyorganosiloxane-containing-rubber latex, in which a total amount of sulfate ions and sulfonate ions included in 100 g of the solid content is 2.4 mmol or less, a powder thereof, and a resin composition including the powder and a resin. Further, a molded object thereof and a production method therefor are provided.
    Type: Application
    Filed: July 22, 2021
    Publication date: November 11, 2021
    Applicant: Mitsubishi Chemical Corporation
    Inventors: Ayako SHIMONAKA, Hiroshi NIINO, Shinji MATSUOKA, Yuichiro FUJIKAWA
  • Publication number: 20200377638
    Abstract: Provided is a block copolymer composition which contains a block copolymer having a specific molecular structure and has a molecular weight distribution within an appropriate range. A polymerizable composition containing a macromonomer (A) which has a group having a radical-reactive unsaturated double bond at one terminal of a poly(meth)acrylate segment, a vinyl monomer (B), and an organic iodine compound (C), or a polymerizable composition containing a macromonomer (A), a vinyl monomer (B), an azo-based radical polymerization initiator (E), and iodine is polymerized to obtain a block copolymer composition containing a block copolymer in which constitutional units of all blocks are derived from vinyl monomers and at least one block has a branched structure.
    Type: Application
    Filed: November 22, 2018
    Publication date: December 3, 2020
    Applicants: Mitsubishi Chemical Corporation, Nanyang Technological University
    Inventors: Hiroshi NIINO, Shunsuke CHATANI, Shuyao HSU, Atsushi GOTO, Longqiang XIAO, Jun Jie CHANG
  • Publication number: 20200062946
    Abstract: An object of the present invention is to provide an impact modifier that provides impact resistance to a molded object obtained by molding a resin composition such as polycarbonate at a high temperature, and exhibits more excellent heat stability (preservation of mechanical properties after a wet heat test, discoloration, and flame retardance), and a thermoplastic resin composition including the impact modifier. The polyorganosiloxane-containing-rubber latex, in which a total amount of sulfate ions and sulfonate ions included in 100 g of the solid content is 2.4 mmol or less, a powder thereof, and a resin composition including the powder and a resin. Further, a molded object thereof and a production method therefor are provided.
    Type: Application
    Filed: November 4, 2019
    Publication date: February 27, 2020
    Applicant: Mitsubishi Chemical Corporation
    Inventors: Ayako Shimonaka, Hiroshi Niino, Shinji Matsuoka, Yuichiro Fujikawa
  • Patent number: 9902792
    Abstract: This dispersion-type acrylic copolymer has a matrix (I) formed of an acrylic copolymer having a glass transition temperature of 50° C. or higher and a polymer unit (II) formed of an acrylic copolymer having a glass transition temperature of less than 50° C., the polymer unit (II) forms localized regions having an average diameter of 5-300 nm in the matrix (I), the matrix (I) and polymer unit (II) contain units of a crosslinking component, and the content of these units of a crosslinking component is more than 2% by mass relative to the total weight of the acrylic copolymer.
    Type: Grant
    Filed: August 20, 2014
    Date of Patent: February 27, 2018
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Saori Kikuchi, Eiko Okamoto, Hiroshi Niino
  • Patent number: 9822235
    Abstract: A thermoplastic acrylic resin composition is provided in which translucency properties are suitable for use as a top-sheet member of a photovoltaic cell, warping caused by temperature change is suppressed, and its weathering resistance is excellent; 0.1 to 50 parts by mass of a glass is contained in 100 parts by mass of the thermoplastic acrylic resin; an absolute value of a difference in refractive indices of the thermoplastic acrylic resin and the glass is 0.08 or lower; an average particle size of the glass is 100 to 2,000 ?m; a softening temperature of the thermoplastic resin is 80° C. or higher; and the aspect ratio of the glass is 15 or greater. Also, a molded article which is obtained by molding the thermoplastic acrylic resin composition and has a YI value of 20 or lower after weathering-resistance testing. Further, a top-sheet member of a photovoltaic cell is made of the molded article.
    Type: Grant
    Filed: January 6, 2012
    Date of Patent: November 21, 2017
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Yutaka Aoki, Hiroshi Niino
  • Patent number: 9718919
    Abstract: Provided is (1) a radically polymerizable polyether which imparts excellent mechanical properties including excellent transparency, a high degree of elongation at break and high bending strength to a copolymer produced by the radical polymerization of a radically polymerizable monomer, and a method for producing the radically polymerizable polyether; (2) a polymerizable composition comprising the radically polymerizable polyether and a radically polymerizable vinyl monomer, which enables the formation of a copolymer having excellent mechanical properties; and (3) a copolymer, a molded article and a film, each of which comprises the copolymer.
    Type: Grant
    Filed: February 13, 2014
    Date of Patent: August 1, 2017
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Hiroshi Niino, Saori Kikuchi
  • Patent number: 9695355
    Abstract: Disclosed is a production method of a thermoplastic resin composition comprising: compounding 0.001 to 50 parts by mass of a metal complex (B) with respect to 100 parts by mass of a thermoplastic resin (A), and kneading it under a condition of a kneading temperature of 225 to 300° C. and of a kneading time of 0.5 to 20 minutes, wherein a metal of the metal complex (B) is a metal except for zinc; a molded body obtained by molding the thermoplastic resin composition which is obtained by the production method; and a light emission body using the molded body.
    Type: Grant
    Filed: October 20, 2015
    Date of Patent: July 4, 2017
    Assignee: MITSUBISHI RAYON CO., LTD.
    Inventor: Hiroshi Niino
  • Patent number: 9499739
    Abstract: Disclosed is a production method of a thermoplastic resin composition comprising: blending a thermoplastic resin (A) and a metal complex (B) and a ligand (C2), wherein the metal complex (B) has a ligand (C1) coordinated therein, and wherein the ligand (C2) has a higher boiling point than the ligand (C1) under atmospheric pressure, and then heating and mixing the resulting blend at a temperature of not less than a boiling point of the ligand (C1) and not more than a boiling point of the ligand (C2), to produce a thermoplastic resin composition that can provide a light-emitting body at low cost in which a light-emitting material is dispersed in the resin in a good dispersion state, excellent in transparency and excellent in light-emitting properties of visible light; a molding material obtained by molding the thermoplastic resin composition; and a light-emitting body obtained by molding the thermoplastic resin composition.
    Type: Grant
    Filed: June 29, 2015
    Date of Patent: November 22, 2016
    Assignee: Mutsubishi Rayon Co., Ltd.
    Inventors: Hiroshi Niino, Yutaka Aoki
  • Publication number: 20160200846
    Abstract: This dispersion-type acrylic copolymer has a matrix (I) formed of an acrylic copolymer having a glass transition temperature of 50° C. or higher and a polymer unit (II) formed of an acrylic copolymer having a glass transition temperature of less than 50° C., the polymer unit (II) forms localized regions having an average diameter of 5-300 nm in the matrix (I), the matrix (I) and polymer unit (II) contain units of a crosslinking component, and the content of these units of a crosslinking component is more than 2% by mass relative to the total weight of the acrylic copolymer.
    Type: Application
    Filed: August 20, 2014
    Publication date: July 14, 2016
    Applicant: Mitsubishi Rayon Co., Ltd.
    Inventors: Saori KIKUCHI, Eiko OKAMOTO, Hiroshi NIINO
  • Publication number: 20160040062
    Abstract: Disclosed is a production method of a thermoplastic resin composition comprising: compounding 0.001 to 50 parts by mass of a metal complex (B) with respect to 100 parts by mass of a thermoplastic resin (A), and kneading it under a condition of a kneading temperature of 225 to 300° C. and of a kneading time of 0.5 to 20 minutes, wherein a metal of the metal complex (B) is a metal except for zinc; a molded body obtained by molding the thermoplastic resin composition which is obtained by the production method; and a light emission body using the molded body.
    Type: Application
    Filed: October 20, 2015
    Publication date: February 11, 2016
    Applicant: MITSUBISHI RAYON CO., LTD.
    Inventor: Hiroshi Niino
  • Publication number: 20160002399
    Abstract: Provided is (1) a radically polymerizable polyether which imparts excellent mechanical properties including excellent transparency, a high degree of elongation at break and high bending strength to a copolymer produced by the radical polymerization of a radically polymerizable monomer, and a method for producing the radically polymerizable polyether; (2) a polymerizable composition comprising the radically polymerizable polyether and a radically polymerizable vinyl monomer, which enables the formation of a copolymer having excellent mechanical properties; and (3) a copolymer, a molded article and a film, each of which comprises the copolymer.
    Type: Application
    Filed: February 13, 2014
    Publication date: January 7, 2016
    Applicant: MITSUBISHI RAYON CO., LTD.
    Inventors: Hiroshi NIINO, Saori KIKUCHI
  • Patent number: 9200123
    Abstract: Disclosed is a production method of a thermoplastic resin composition comprising: compounding 0.001 to 50 parts by mass of a metal complex (B) with respect to 100 parts by mass of a thermoplastic resin (A), and kneading it under a condition of a kneading temperature of 225 to 300° C. and of a kneading time of 0.5 to 20 minutes, wherein a metal of the metal complex (B) is a metal except for zinc; a molded body obtained by molding the thermoplastic resin composition which is obtained by the production method; and a light emission body using the molded body.
    Type: Grant
    Filed: October 26, 2010
    Date of Patent: December 1, 2015
    Assignee: MITSUBISHI RAYON CO., LTD.
    Inventor: Hiroshi Niino
  • Publication number: 20150299564
    Abstract: Disclosed is a production method of a thermoplastic resin composition comprising: blending a thermoplastic resin (A) and a metal complex (B) and a ligand (C2), wherein the metal complex (B) has a ligand (C1) coordinated therein, and wherein the ligand (C2) has a higher boiling point than the ligand (C1) under atmospheric pressure, and then heating and mixing the resulting blend at a temperature of not less than a boiling point of the ligand (C1) and not more than a boiling point of the ligand (C2), to produce a thermoplastic resin composition that can provide a light-emitting body at low cost in which a light-emitting material is dispersed in the resin in a good dispersion state, excellent in transparency and excellent in light-emitting properties of visible light; a molding material obtained by molding the thermoplastic resin composition; and a light-emitting body obtained by molding the thermoplastic resin composition.
    Type: Application
    Filed: June 29, 2015
    Publication date: October 22, 2015
    Applicant: MITSUBISHI RAYON CO., LTD.
    Inventors: Hiroshi NIINO, Yutaka AOKI
  • Patent number: 9090820
    Abstract: Disclosed is a production method of a thermoplastic resin composition comprising: blending a thermoplastic resin (A) and a metal complex (B) and a ligand (C2), wherein the metal complex (B) has a ligand (C1) coordinated therein, and wherein the ligand (C2) has a higher boiling point than the ligand (C1) under atmospheric pressure, and then heating and mixing the resulting blend at a temperature of not less than a boiling point of the ligand (C1) and not more than a boiling point of the ligand (C2), to produce a thermoplastic resin composition that can provide a light-emitting body at low cost in which a light-emitting material is dispersed in the resin in a good dispersion state, excellent in transparency and excellent in light-emitting properties of visible light; a molding material obtained by molding the thermoplastic resin composition; and a light-emitting body obtained by molding the thermoplastic resin composition.
    Type: Grant
    Filed: November 28, 2011
    Date of Patent: July 28, 2015
    Assignee: Mitsubishi Rayon Co., Ltd.
    Inventors: Hiroshi Niino, Yutaka Aoki
  • Patent number: 8889785
    Abstract: Disclosed is a production method of a thermoplastic resin composition which has a good light emission property of visible light by ultraviolet irradiation, the production method comprising: compounding 0.001 to 50 parts by mass of at least one of metal compound (B) selected from a metal complex (B1) and a metal halide (B2), and 0.001 to 30 parts by mass of a polyalkylene glycol compound (C), with respect to 100 parts by mass of a thermoplastic resin (A); and heating it at a temperature of 100 to 320° C.
    Type: Grant
    Filed: August 19, 2010
    Date of Patent: November 18, 2014
    Assignee: Mitsubishi Rayon Co., Ltd.
    Inventors: Hiroshi Niino, Mitsufumi Nodono
  • Publication number: 20130281601
    Abstract: A thermoplastic acrylic resin composition is provided in which translucency properties are suitable for use as a top-sheet member of a photovoltaic cell, warping caused by temperature change is suppressed, and its weathering resistance is excellent; 0.1 to 50 parts by mass of a glass is contained in 100 parts by mass of the thermoplastic acrylic resin; an absolute value of a difference in refractive indices of the thermoplastic acrylic resin and the glass is 0.08 or lower; an average particle size of the glass is 100 to 2,000 ?m; a softening temperature of the thermoplastic resin is 80° C. or higher; and the aspect ratio of the glass is 15 or greater. Also, a molded article which is obtained by molding the thermoplastic acrylic resin composition and has a YI value of 20 or lower after weathering-resistance testing. Further, a top-sheet member of a photovoltaic cell is made of the molded article.
    Type: Application
    Filed: January 6, 2012
    Publication date: October 24, 2013
    Applicant: MITSUBISHI RAYON CO., LTD.
    Inventors: Yutaka Aoki, Hiroshi Niino