Patents Assigned to DONGA MANUFACTURING CORP.
  • Integrated fluorine gasket manufactured by injection molding for hydrogen fuel cells
    Patent number: 9640807
    Abstract: Disclosed is an integrated fluorine gasket manufactured by injection molding for hydrogen fuel cells. In particular, a fluorine compound having a fluorine content of about 60 to 75 parts by weight based on 100 parts by weight of a fluoroelastomer is disposed in a gasket. The resulting fluorine gasket is integrated with a thin bipolar plate having a thickness of about 200 ?m or less to have a thickness of about 750 ?m or less by injection molding on the thin bipolar plate and by cross-linking.
    Type: Grant
    Filed: December 14, 2012
    Date of Patent: May 2, 2017
    Assignees: Hyundai Motor Company, Donga Manufacturing Corp., E.I. Du Pont De Nemours and Company
    Inventors: Bo Ki Hong, Byeong Heon Jeong, Seung Kyung Ko, Stephen Bowers, Ho Jin Lee, Yoon Gue Choi
  • INTEGRATED FLUORINE GASKET MANUFACTURED BY INJECTION MOLDING FOR HYDROGEN FUEL CELLS
    Publication number: 20140077462
    Abstract: Disclosed is an integrated fluorine gasket manufactured by injection molding for hydrogen fuel cells. In particular, a fluorine compound having a fluorine content of about 60 to 75 parts by weight based on 100 parts by weight of a fluoroelastomer is disposed in a gasket. The resulting fluorine gasket is integrated with a thin bipolar plate having a thickness of about 200 ?m or less to have a thickness of about 750 ?m or less by injection molding on the thin bipolar plate and by cross-linking.
    Type: Application
    Filed: December 14, 2012
    Publication date: March 20, 2014
    Applicants: HYUNDAI MOTOR COMPANY, E.I. DU PONT DE NEMOURS AND COMPANY, DONGA MANUFACTURING CORP.
    Inventors: Bo Ki Hong, Byeong Heon Jeong, Seung Kyung Ko, Stephen Bowers, Ho Jin Lee, Yoon Gue Choi