Patents Assigned to AMFU Limited
  • Patent number: 4363847
    Abstract: Flexible sheet material suitable for use in the manufacture of gaskets has a basis (85-95% by weight) of fine particles of a non-fibrous charged-layer-silicate mineral such as chlorite and includes a minor proportion (at least 2% but not more than 15% by weight of the material) of organic web-forming fibers, preferably cellulose fibers. The fine particles of the silicate mineral and the web-forming fibers are bound together with a synthetic rubber.
    Type: Grant
    Filed: July 1, 1981
    Date of Patent: December 14, 1982
    Assignee: AMFU Limited
    Inventors: Brian Hargreaves, Alan K. Cousens