Patents Assigned to Bullstone Co., Ltd.
  • Composition for gel cushion, and gel cushion manufactured therefrom
    Patent number: 10519308
    Abstract: The present invention relates to a composition for a gel cushion and to a gel cushion manufactured therefrom, the composition for a gel cushion comprising 5-8 parts by weight of an additive based on 100 parts by weight of a mixture of an oil and a copolymer which is obtained by polymerization of a polystyrene-based polymer and polypropylene.
    Type: Grant
    Filed: July 28, 2015
    Date of Patent: December 31, 2019
    Assignees: Bullstone Co., Ltd., Caremate Corporation
    Inventors: Young-Jin Kim, Byoung-Jun Seo, He-Goun Yoon