Patents by Inventor Bernd D. Baehr

Bernd D. Baehr 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).

  • Silicate- and magnesium-free stabilizer hydrogen peroxide mixtures for bleaching processes
    Patent number: 4959075
    Abstract: Silicate- and magnesium-free stabilizer mixtures for stabilizing aqueous peroxide bleaching baths based on organic acids and/or salts thereof comprising:(A) polyhydroxy and/or hydroxycarboxylic acids, and their alkali metal and/or ammonium salts;(B) polyacrylic acids, and their partially neutralized form; and(C) polyamine and/or amine polyphosphonic acids, and their alkali metal and/or ammonium salts;with the proviso that the ratio by weight of components A: B: C is 1 to 6: 0.2 to 1: 0.4 to 4.
    Type: Grant
    Filed: September 7, 1989
    Date of Patent: September 25, 1990
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Bernd D. Baehr, Ulrich Rall, Hildegard van Delden, Wolfgang Lillotte
  • Silicate-and magnesium-free stabilizer mixtures
    Patent number: 4880566
    Abstract: Silicate- and magnesium-free stabilizer mixtures for stabilizing aqueous peroxide bleaching baths based on organic acids and/or salts thereof comprising:(A) polyhydroxy and/or hydroxycarboxylic acids, and their alkali metal and/or ammonium salts;(B) polyacrylic acids, and their partially neutralized form; and(C) polyamine and/or amine polyphosphonic acids, and their alkali metal and/or ammonium salts;(D) 35% hydrogen peroxide solution with the proviso that the ratio by weight of components A:B:C is 1 to 6:0.2 to 1:0.4 to 4.
    Type: Grant
    Filed: December 22, 1988
    Date of Patent: November 14, 1989
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Bernd D. Baehr, Ulrich Rall, Hildegard van Delden, Wolfgang Lillotte