Patents Assigned to Nippon Seiro Company, Limited
  • Antioxidant wax for rubber
    Patent number: 4877456
    Abstract: The present invention relates to an antioxidant was for rubber having a capacity to prevent the rubber from aging over a whole range from lower to higher temperatures and also providing excellent appearance and quality for the rubber products.
    Type: Grant
    Filed: November 30, 1988
    Date of Patent: October 31, 1989
    Assignee: Nippon Seiro Company, Limited
    Inventors: Kaoru Chikamune, Manabu Tokuda, Kazuo Inoue, Kyoshi Utsunomiya, Yoshii Hitofude