Patents Assigned to Suncorona Oda Co., Ltd.
  • Patent number: 11603442
    Abstract: An object of the present invention is to provide a fiber-reinforced thermoplastic resin sheet which can be manufactured into a molded body exhibiting excellent appearance quality as well as exhibits both high moldability and strength and a manufacturing method of such a fiber-reinforced thermoplastic resin sheet. The present invention relates to a fiber-reinforced thermoplastic resin sheet which is a random laminated body of a tape-shaped unidirectional prepreg and contains spread reinforcement fibers and a polymer (a) and in which the polymer (a) is a polymer of at least a bisphenol A type epoxy compound represented by Formula (1): where n is an integer of 1 to 4 and a bisphenol compound selected from the group consisting of bisphenol A, bisphenol F, bisphenol S, bisphenol B, bisphenol E, and bisphenol P.
    Type: Grant
    Filed: June 28, 2019
    Date of Patent: March 14, 2023
    Assignees: SUNCORONA ODA CO., LTD., KANAZAWA INSTITUTE OF TECHNOLOGY
    Inventors: Keisuke Sone, Masaki Kobayashi, Hirofumi Nishida, Kiyoshi Uzawa, Hisai Ueda
  • Publication number: 20180100043
    Abstract: The present invention provides a fiber-reinforced thermoplastic resin sheet having both high strength and moldability, to provide a unidirectional prepreg from which such a fiber-reinforced thermoplastic resin sheet can be acquired, and to provide a manufacturing method of a unidirectional prepreg. The present invention relates to a unidirectional prepreg having a tape shape comprising: spread reinforcement fibers; and a polymer of a bisphenol A type epoxy compound represented by Formula (1): [where n is an integer of 1 to 4] and a bisphenol compound selected from the group consisting of bisphenol A, bisphenol F, bisphenol S, bisphenol B, bisphenol E, and bisphenol P, wherein the polymer has a weight-average molecular weight of 5,000 to 25,000, and wherein the average content number of the reinforcement fibers in a thickness direction of the unidirectional prepreg is ten or less.
    Type: Application
    Filed: October 5, 2017
    Publication date: April 12, 2018
    Applicant: Suncorona Oda Co., Ltd.
    Inventors: Yoshikazu TAKASHIMA, Toshiaki KARASAWA, Masaki KOBAYASHI