Patents by Inventor Gunter Weinhold

Gunter Weinhold has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Carboxylated monomer/vinyl chloride/vinyl acetate terpolymer emulsions, process of production and use
    Patent number: 4348496
    Abstract: A pastable emulsion polymer comprised of carboxylated monomer/vinyl chloride/vinyl acetate terpolymer having improved strength of adhesion produced by emulsion copolymerization and containing, per polymer weight,from 60% to 98% by weight of vinyl chloride monomer units,from 1% to 29% by weight of vinyl acetate monomer units, andfrom 1% to 15% by weight of carboxyl-containing monomerunits selected from the group consisting of olefinically-unsaturated monocarboxylic acids, monoallyl esters of non-ethylenically unsaturated dicarboxylic acids, and monovinyl esters of non-ethylenically-unsaturated dicarboxylic acids. The terpolymers are manufactured by the copolymerization of vinyl chloride, vinyl acetate, olefinically-unsaturated monocarboxylic acids and/or monoallyl esters and/or monovinyl esters of non-ethylenically unsaturated dicarboxylic acids in an aqueous emulsion. The pastable terpolymers, after empasting are used for coating flexible sheet-like articles.
    Type: Grant
    Filed: January 26, 1981
    Date of Patent: September 7, 1982
    Assignee: Wacker-Chemie GmbH
    Inventors: Rudolf Puhe, Werner Frey, Gunter Weinhold
  • Manufacture of polyvinyl chloride foams
    Patent number: 4059661
    Abstract: A process is provided for preparing soft polyvinyl chloride foam by agitating a foamable plastisol at high speed and under pressure.
    Type: Grant
    Filed: March 6, 1975
    Date of Patent: November 22, 1977
    Assignee: Wacker-Chemie GmbH
    Inventors: Herbert Eck, Gunter Weinhold, Manfred Hannebaum