Patents by Inventor Masaru Kunimura

Masaru Kunimura 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).

  • Liquid polyethercarbonatediol compound and thermoplastic polyurethane obtained therefrom
    Publication number: 20070155933
    Abstract: A liquid polyethercarbonatediol compound, useful for producing a thermoplastic polyurethane having excellent weathering resistance, softness and stretchability, comprises a reaction product of (1) a carbonate-ester compound with (2) a polyetherdiol compound having, in the molecular structure thereof, structural units of -RO-(a) and structural units of —(CH2)—O-(b) and/or —CH2CH(CH3)—O-(c), in which reaction product, average molecular numbers n and m of the structural units (b) and (c), per mole of the structural units (a) satisfy the requirements: O?n?5, O?m?5 and 1<(n+m)?5.
    Type: Application
    Filed: January 20, 2005
    Publication date: July 5, 2007
    Inventors: Masanori Watanabe, Tetsuro Kawashita, Atsushi Morikami, Masaru Kunimura, Kouichi Kashiwagi
  • Thermoplastic polyurethane
    Patent number: 6987160
    Abstract: A thermoplastic polyurethane useful for elastomers, elastic fibers and artificial leathers contains a polyaddition product of a diisocyanate and a chain extender with a liquid polyethercarbonate diol which is a reaction product of a carbonate compound with a polyether diol having structural units (a) (—(CH2)6—O—) and at least one member of structural units (b) (—(CH2)2—O) and (c) (—CH2CH(CH3)—O—), and in which the units (b) are present in an average number (n) of moles of 0 to 5 per mole of the units (a), the units (c) are present in an average number (m) of moles of 0 to 5 per mole of the units (a), and the total average number (n+m) of moles of the units (b) and (c) is more than 1 but not more than 5, per mole of the units (a).
    Type: Grant
    Filed: March 3, 2005
    Date of Patent: January 17, 2006
    Assignee: Ube Industries, Ltd
    Inventors: Hideho Tanaka, Masaru Kunimura, Kohichi Kashiwagi, Takayoshi Kaneko
  • Thermoplastic polyurethane
    Publication number: 20050143551
    Abstract: A thermoplastic polyurethane useful for elastomers, elastic fibers and artificial leathers contains a polyaddition product of a diisocyanate and a chain extender with a liquid polyethercarbonate diol which is a reaction product of a carbonate compound with a polyether diol having structural units (a) (—(CH2)6—O—) and at least one member of structural units (b) (—(CH2)2—O) and (c) (—CH2CH(CH3)—O—), and in which the units (b) are present in an average number (n) of moles of 0 to 5 per mole of the units (a), the units (c) are present in an average number (m) of moles of 0 to 5 per mole of the units (a), and the total average number (n+m) of moles of the units (b) and (c) is more than 1 but not more than 5, per mole of the units (a).
    Type: Application
    Filed: March 3, 2005
    Publication date: June 30, 2005
    Applicant: Ube Industries, Ltd., a corporation of Japan
    Inventors: Hideho Tanaka, Masaru Kunimura, Kohichi Kashiwagi, Takayoshi Kaneko
  • Thermoplastic polyurethane
    Patent number: 6881856
    Abstract: A thermoplastic polyurethane useful for elastomers, elastic fibers and artificial leathers contains a polyaddition product of a diisocyanate and a chain extender with a liquid polyethercarbonate diol which is a reaction product of a carbonate compound with a polyether diol having structural units (a) (—(CH2)6—O—) and at least one member of structural units (b) (—(CH2)2—O) and (c) (—CH2CH(CH3)—O—), and in which the units (b) are present in an average number (n) of moles of 0 to 5 per mole of the units (a), the units (c) are present in an average number (m) of moles of 0 to 5 per mole of the units (a), and the total average number (n+m) of moles of the units (b) and (c) is more than 1 but not more than 5, per mole of the units (a).
    Type: Grant
    Filed: December 26, 2001
    Date of Patent: April 19, 2005
    Assignee: Ube Industries, Ltd.
    Inventors: Hideho Tanaka, Masaru Kunimura, Kohichi Kashiwagi, Takayoshi Kaneko
  • Thermoplastic polyurethane
    Publication number: 20020123595
    Abstract: A thermoplastic polyurethane useful for elastomers, elastic fibers and artificial leathers contains a polyaddition product of a diisocyanate and a chain extender with a liquid polyethercarbonate diol which is a reaction product of a carbonate compound with a polyether diol having structural units (a) (—(CH2)6—O—) and at least one member of structural units (b) (—(CH2)2—O) and (c) (—CH2CH(CH3)—O—), and in which the units (b) are present in an average number (n) of moles of 0 to 5 per mole of the units (a), the units (c) are present in an average number (m) of moles of 0 to 5 per mole of the units (a), and the total average number (n+m) of moles of the units (b) and (c) is more than 1 but not more than 5, per mole of the units (a).
    Type: Application
    Filed: December 26, 2001
    Publication date: September 5, 2002
    Applicant: Ube Industries, Ltd.
    Inventors: Hideho Tanaka, Masaru Kunimura, Kohichi Kashiwagi, Takayoshi Kaneko