Patents by Inventor Tanja R. Brueck

Tanja R. Brueck 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).

  • Aqueous dispersions of acrylate copolymers
    Patent number: 5539022
    Abstract: Water-dilutable dispersions of acrylate copolymers having a hydroxyl number of from 40 to 200 mg KOH/g and an acid number of from 15 to 50 mg of KOH/g, obtained by free-radical copolymerization ofa) from 5 to 40 parts by weight of at least one glycidyl ester of an .alpha.-branched aliphatic saturated monocarboxylic acid,b) from 0 to 30 parts by weight of at least one diester of an .alpha.,.beta.-olefinically unsaturated dicarboxylic acid,c) from 0 to 70 parts by weight of at least one vinyl aromatic hydrocarbon, the molar quantity of component c) always being greater than or equal to the molar quantity of component b),d) from 0 to 60 parts by weight of an alkyl ester of an .alpha.,.beta.-olefinically unsaturated carboxylic acid,e) from 2 to 40 parts by weight of at least one .alpha.,.beta.-olefinically unsaturated carboxylic acid, the molar quantity of component e) always being greater than the molar quantity of component a),f) from 5 to 40 parts by weight of at least one hydroxyalkyl ester of an .alpha.,.
    Type: Grant
    Filed: April 4, 1994
    Date of Patent: July 23, 1996
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Holger Schmidt, Tanja R. Brueck, Uwe Kubillus, Harald Oswald, Petra Schaub, Andrea Travers-Hemmer