Patents Assigned to Höganäs AB
  • Lubricant powder for powder metallurgy
    Patent number: 6231635
    Abstract: The invention concerns a lubricant for powder metallurgical compositions containing 10-60% by weight of a lithium salt of a fatty acid; 0-40% by weight of a zinc salt of a fatty acid and 40-90% by weight of a fatty acid bis-amide. 10-60% by weight of the lubricant is made up by the lithium and the zinc salt.
    Type: Grant
    Filed: February 1, 1999
    Date of Patent: May 15, 2001
    Assignee: Höganäs AB
    Inventors: Masaaki Suzuki, Toshio Serita, Norio Ukai, Hiroyasu Saitoh