Patents Examined by Daniel S. Metzimaier
  • Dispersing agents, their use and solids coated therewith
    Patent number: 5425900
    Abstract: The present invention relates to dispersing agents or their salts, comprisingA the reaction product of one or more polyisocyanates having an average functionality of from 2.0 to 5, withB at least a monohydroxyl compound,C at least a dicarboxylic acid compound andD a compound containing at least one basic ring nitrogen and an isocyanate-reactive group, in which of the isocyanate groups about 30-70% are reacted with B and C together and about 30-70% with D.
    Type: Grant
    Filed: June 25, 1992
    Date of Patent: June 20, 1995
    Assignee: EFKA-Chemicals B.V.
    Inventor: Peter H. Quednau
  • Mixture of alkyl glucosides and alcohols as foam inhibitors
    Patent number: 5306442
    Abstract: A mixture of C.sub.16 -C.sub.28 alkyl glucosides (A) and C.sub.16 -C.sub.28 fatty alcohols (B) in a weight ratio (A):(B) of between 20:1 and 1:9 possesses foam inhibiting properties even when highly diluted. The mixture is suitable for use in the food industry, and is preferably employed in a chemically inert liquid carrier oil that is immiscible with water.
    Type: Grant
    Filed: January 3, 1992
    Date of Patent: April 26, 1994
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Karlheinz Hill, Adolf Asbeck, Karl Heinz Schmid