Patents by Inventor Werner Schackert

Werner Schackert 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).

  • Method for producing an aqueous polymer dispersion by radical aqueous emulsion polymerization with a continually produced aqueous monomer emulsion
    Patent number: 6946529
    Abstract: A method for producing an aqueous polymer dispersion by radical emulsion polymerization of an aqueous monomer emulsion, wherein the monomer emulsion is produced continually according to consumption by mixing the components thereof using a mixing device.
    Type: Grant
    Filed: April 17, 2002
    Date of Patent: September 20, 2005
    Assignee: BASF Aktiengesellschaft
    Inventors: Andreas Keller, Werner Schackert, Gerald Wildburg, Heiko Wolf
  • Preparation of concentrated polyacrylate dispersions
    Patent number: 4424298
    Abstract: Emulsion copolymerization of acrylic or methacrylic acid esters with from 0.3 to 10% by weight of .alpha.,.beta.-monoolefinically unsaturated monocarboxylic acids and/or dicarboxylic acids and/or their amides, with or without up to 25% by weight of styrene, acrylonitrile, vinyl acetate and/or vinyl chloride, using the emulsion feed process, gives particularly concentrated copolymer dispersions if an emulsifier system of 0.01-5.0% by weight of a sulfuric acid half-ester of an oxyalkylated alkylphenol and 0.01-1% by weight of a dialkyl sulfosuccinate, where alkyl is of 6 to 18 carbon atoms, is employed and the polymerization is carried out at pH 2-6.
    Type: Grant
    Filed: April 28, 1982
    Date of Patent: January 3, 1984
    Assignee: BASF Aktiengesellschaft
    Inventors: Erich Penzel, Guenter Eckert, Lothar Heider, Lothar Wuertele, Werner Schackert