Patents by Inventor Jumpei KODERA

Jumpei KODERA 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: 10385201
    Abstract: A resin composite that excels in weatherability and transparency and experiences less bleed out and whitening at a high temperature, and a method for producing the resin composite, and the like are provided. Specifically, the resin composite includes: a methacrylic resin (A) that contains a structural unit derived from methyl methacrylate and that has a melt viscosity ?(A) of 1,500 to 3,500 Pa·s; and a block copolymer (B) in which a methacrylic acid ester polymer block (b2) is coupled to an acrylic acid ester polymer block (b1). The block copolymer (B) has a melt viscosity ?(B) of 75 to 1,500 Pa·s. A ratio ?(A)/?(B) is from 1 to 20. 0.1 to 3 parts by mass of a hydroxy phenyl triazine-based UV absorber is contained in 100 parts by mass of the total of the methacrylic resin (A) and the block copolymer (B).
    Type: Grant
    Filed: March 31, 2016
    Date of Patent: August 20, 2019
    Assignee: KURARAY CO., LTD.
    Inventors: Jumpei Kodera, Kaori Maeda, Noboru Higashida
  • Patent number: 10329394
    Abstract: A resin composite, a method of producing the resin composite, a molded product, a film, and an article excellent in impact resistance are provided. The resin composite contains a methacrylic resin (A), which contains no less than 80% by mass of a structural unit derived from methyl methacrylate and has a melt viscosity ?(A) of 1500 to 3500 Pa·s at 220° C. and a shear rate of 122/sec, and a triblock copolymer (B), which has a methacrylic acid ester polymer block (b2) coupled to each of two ends of an acrylic acid ester polymer block (b1), at a specific ratio. The triblock copolymer (B) includes the block (b1) and the block (b2) at a specific ratio and has a melt viscosity ?(B) of 75 to 1500 Pa·s at 220° C. and a shear rate of 122/sec. The ratio of ?(A)/?(B) is from 1 to 20.
    Type: Grant
    Filed: March 3, 2016
    Date of Patent: June 25, 2019
    Assignee: KURARAY CO., LTD.
    Inventors: Jumpei Kodera, Kaori Maeda, Noboru Higashida
  • Publication number: 20180100063
    Abstract: A resin composite that excels in weatherability and transparency and experiences less bleed out and whitening at a high temperature, and a method for producing the resin composite, and the like are provided. Specifically, the resin composite includes: a methacrylic resin (A) that contains a structural unit derived from methyl methacrylate and that has a melt viscosity ?(A) of 1,500 to 3,500 Pa·s; and a block copolymer (B) in which a methacrylic acid ester polymer block (b2) is coupled to an acrylic acid ester polymer block (b1). The block copolymer (B) has a melt viscosity ?(B) of 75 to 1,500 Pa·s. A ratio ?(A)/?(B) is from 1 to 20. 0.1 to 3 parts by mass of a hydroxy phenyl triazine-based UV absorber is contained in 100 parts by mass of the total of the methacrylic resin (A) and the block copolymer (B).
    Type: Application
    Filed: March 31, 2016
    Publication date: April 12, 2018
    Applicant: KURARAY CO., LTD.
    Inventors: Jumpei KODERA, Kaori MAEDA, Noboru HIGASHIDA
  • Publication number: 20180030223
    Abstract: A resin composite, a method of producing the resin composite, a molded product, a film, and an article excellent in impact resistance are provided. The resin composite contains a methacrylic resin (A), which contains no less than 80% by mass of a structural unit derived from methyl methacrylate and has a melt viscosity ?(A) of 1500 to 3500 Pa·s at 220° C. and a shear rate of 122/sec, and a triblock copolymer (B), which has a methacrylic acid ester polymer block (b2) coupled to each of two ends of an acrylic acid ester polymer block (b1), at a specific ratio. The triblock copolymer (B) includes the block (b1) and the block (b2) at a specific ratio and has a melt viscosity ?(B) of 75 to 1500 Pa·s at 220° C. and a shear rate of 122/sec. The ratio of ?(A)/?(B) is from 1 to 20.
    Type: Application
    Filed: March 3, 2016
    Publication date: February 1, 2018
    Applicant: KURARAY CO., LTD.
    Inventors: Jumpei KODERA, Kaori MAEDA, Noboru HIGASHIDA