Patents Assigned to Rex Patent Graf von Rex GmbH & Co KG
  • Patent number: 4617162
    Abstract: Method for the production of friction linings, in which a mixture of fibers and wetting agents with water, in a fiber:water-mixture ratio from about 1:3 to 1:7, in the presence of plastifying components, is homogenized, the so formed plastic mass is shaped into a formed body, the formed body is dried, and then strengthened and hardened under heat and pressure. According to a variation, additives are first intensively mixed in after homogenization of the mixture containing fibers, wetting agent, plastifying component and water. The plastifying component may be a pectin, a polysaccharide, a vegetable glue or a viscose solution, in particular algin or gum arabic. Moreover, the plastifying component may be a colloid, in particular an aqueous colloid. It may also be a fiber colloid. In that case, it is preferred for the fiber colloid content to be greater than about 30% by weight.
    Type: Grant
    Filed: December 7, 1981
    Date of Patent: October 14, 1986
    Assignee: Rex Patent Graf von Rex GmbH & Co KG
    Inventors: Wolff G. von Rex, Hans Fetzer