Patents by Inventor Robert Kreuzer

Robert Kreuzer 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).

  • Patent number: 5914072
    Abstract: Phosphoric esters obtained bya) reacting a mono-, oligo- or polyamine with an alkylene oxide or alkylene carbonate to give an amino alcohol or amino mono-, oligo-, or polyether alcohol, from 50 to 100% of the alkoxylatable NH groups of the amine being alkoxylated,b) reacting the resulting amino (ether) alcohol with a hydroxycarboxylic acid or a dicarboxylic acid and a diol to give a mono-, oligo- or polyester, or reacting it with a diisocyanate and a diol to give a di-, oligo- or polyurethane, from 50 to 100% of the terminal hydroxyl groups in the amino (ether) alcohol being esterified or converted into urethane groups, andc) reacting the resulting amino (ether) ester or urethane with a phosphorus compound which forms phosphoric esters, from 5 to 100% of the terminal hydroxyl groups in the amino (ether) ester or urethane being converted into phosphoric ester groups, and the phosphorus atoms being mono- and/or di- and, if appropriate, tri-esterified,preparation of the phosphoric esters, and their use as disper
    Type: Grant
    Filed: August 2, 1996
    Date of Patent: June 22, 1999
    Assignee: BASF Aktiengesellschaft
    Inventors: Michael Zirnstein, Jorg Schroder, Robert Kreuzer
  • Patent number: 5352729
    Abstract: Pigment formulations containing(a) at least one finely divided pigment,(b) at least one copolymer obtainable by free radical polymerization of(.alpha..sub.1) C.sub.8 -C.sub.40 -monoolefins or(.alpha..sub.2) C.sub.8 -C.sub.40 -alkyl vinyl ethers or(.alpha..sub.3) a mixture of C.sub.8 -C.sub.40 -alkyl vinyl ethers and up to 50 mol % of C.sub.8 -C.sub.40 -monoolefins with(.beta.) monoethylenically unsaturated C.sub.4 -C.sub.12 -dicarboxylic acids or C.sub.4 -C.sub.12 -dicarboxylic anhydridesand having a molecular weight of from 500 to 20,000 g/mol, some or all of whose carboxyl or anhydride groups may be reacted with ammnonia, amines, alcohols, amino- or hydroxycarboxylic acids or alkali metal or alkaline earth metal hydroxides, and(c) if required, further assistants conventionally used in pigment formulationsare used for the preparation of pastes, printing inks and coatings.
    Type: Grant
    Filed: November 9, 1992
    Date of Patent: October 4, 1994
    Assignee: BASF Aktiengesellschaft
    Inventors: Hermann Birkhofer, Walter Denzinger, Heinrich Hartmann, Juan A. G. Gomez, Paul Guenthert, Joachim Jesse, Robert Kreuzer, Knut Oppenlaender, Reinhard U. Roth, Benno Sens