Patents Assigned to NISSAN CHMICAL INDUSTRIES, LTD.
  • Carbon-containing solid acid having sulfonate group
    Patent number: 10493439
    Abstract: [Problem] The main purpose is to provide a novel carbon-containing solid acid which has an excellent catalytic activity and of which the catalytic activity cannot be deteriorated easily even when used repeatedly. [Solution] A carbon-containing solid acid which comprises a carbonaceous material having a sulfonate group, wherein the carbonaceous material has a graphene structure in at least a part thereof and contains boron.
    Type: Grant
    Filed: June 27, 2014
    Date of Patent: December 3, 2019
    Assignees: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY, NISSAN CHMICAL INDUSTRIES, LTD.
    Inventors: Hiroshi Shioyama, Hiroaki Sakurai, Qiang Xu, Masato Kiuchi, Yutaka Kimura