Patents by Inventor Dieter Stoeckigt

Dieter Stoeckigt 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: 6544348
    Abstract: A process is proposed for cleaning printing machines or printing plates by removing the contaminants from the surfaces to be cleaned by washing them with a microemulsion comprising water, a surfactant, and a water-immiscible organic solvent.
    Type: Grant
    Filed: November 29, 2000
    Date of Patent: April 8, 2003
    Assignee: BASF Aktiengesellschaft
    Inventors: Dieter Stöckigt, Günter Oetter, Erwin Wolff, Erich Frank, Petra Schneider
  • Patent number: 5565141
    Abstract: The use of a mixture of a long-chain, unsaturated, dimeric or oligomeric fatty acid with a C.sub.6 -C.sub.12 fatty acid as solubilizer for non-ionic surfactants in alkaline aqueous solutions.
    Type: Grant
    Filed: October 31, 1994
    Date of Patent: October 15, 1996
    Assignee: BASF Aktiengesellschaft
    Inventors: Richard Baur, Dieter Stoeckigt, Hans-Werner Neumann
  • Patent number: 5536884
    Abstract: A mixture suitable for use as a foam-suppressing surfactant additament in cleaning compositions for mechanized cleaning processes comprises at least two mixtures of alkoxylated alcohols IR--O--(C.sub.2 H.sub.4 O).sub.x --(C.sub.3 H.sub.6 O).sub.y --H (I)where x is an average degree of ethoxylation between 1 and 12, y is an average degree of propoxylation between 1 and 15, one alkoxylated alcohol mixture carries straight-chain or branched C.sub.8 -C.sub.18 -alkyl groups as the radical R and one other alkoxylated alcohol mixture carries straight-chain or branched C.sub.10 -C.sub.20 -alkyl groups as the radical R, subject to the proviso that the two radicals R differ by at least 0.5 in the average number of carbon atoms, and the two alkoxylated alcohol mixtures present in a ratio of from 10:90 to 90:10.
    Type: Grant
    Filed: August 23, 1993
    Date of Patent: July 16, 1996
    Assignee: BASF Aktiengesellschaft
    Inventors: Dieter Stoeckigt, Richard Baur, Horst Trapp, Johannes Perner
  • Patent number: 5077039
    Abstract: Substituted glucosides I(Glu.sub.m --R.sup.1)R.sub.n.sup.2 Iwhere Glu is a glucose unit, R.sup.1 is C.sub.8 -C.sub.18 -alkyl held by an acetal bond, R.sup.2 is C.sub.1 -C.sub.4 -alkyl or arylmethyl held by an ether bond, m is a mean value from 1 to 10 and n is a mean value from 0.1 to 2 m.
    Type: Grant
    Filed: September 27, 1989
    Date of Patent: December 31, 1991
    Assignee: BASF Aktiengesellschaft
    Inventors: Richard Baur, Jochen Houben, Alfred Oftring, Dieter Stoeckigt
  • Patent number: 4965009
    Abstract: Aqueous acidic cleaner formulations contain, as essential components,(a) from 1 to 20% by weight of one or more nonionic surfactants based on oxyalkylated fatty alcohols, fatty acids, fatty amines, fatty amides or alkane-sulfonamides,(b) from 0.1 to 15% by weight of one or more polyetherpolyols which are obtainable by reacting a dihydric to hexahydric alcohol of 2 to 10 carbon atoms with an alkylene oxide of 2 to 4 carbon atoms and reacting this product with a 1,2-alkylene oxide or alkyl or alkenyl glycidyl ether of 8 to 30 carbon atoms and(c) from 1 to 40% by weight of one or more acids.
    Type: Grant
    Filed: April 27, 1989
    Date of Patent: October 23, 1990
    Assignee: BASF Aktiengesellschaft
    Inventors: Richard Baur, Dieter Stoeckigt, Hans-Werner Neumann, Hans-Helmut Goertz, Norbert Wagner
  • Patent number: 4624803
    Abstract: Fatty alcohol oxyalkylates possessing blocked terminal groups are used as low-foam, antifoaming and biodegradable surfactants for industrial cleaning processes, in particular for bottle-washing and metal-cleaning.
    Type: Grant
    Filed: May 3, 1985
    Date of Patent: November 25, 1986
    Assignee: BASF Aktiengesellschaft
    Inventors: Wolf-Dieter Balzer, Klaus Lorenz, Helmut Wolf, Wolfgang Trieselt, Dieter Stoeckigt, Albert Hettche
  • Patent number: 4412933
    Abstract: Color-stabilized nonionic surfactants which contain chemically bonded polyalkylene oxide groups having terminal hydroxyl groups, and in which are dissolved C.sub.4 -C.sub.8 -aliphatic dicarboxylic acids, their C.sub.1 -C.sub.4 -alkyl esters or mixtures thereof, as color stabilizers.
    Type: Grant
    Filed: April 17, 1981
    Date of Patent: November 1, 1983
    Assignee: BASF Aktiengesellschaft
    Inventors: Erhard Klahr, Wolfgang Trieselt, Wolf-Dieter Balzer, Rainer Strickler, Dieter Stoeckigt
  • Patent number: 4366326
    Abstract: Compounds of the formula I ##STR1## where R is C.sub.8 -C.sub.20 -alkyl and A is a polyalkylene oxide radical composed of from 4 to 30 alkylene oxide units, of which from 100 to 60 mole % are ethylene oxide units and from 0 to 40 mole % are 1,2-propylene oxide units or 1,2-butylene oxide units or a mixture of these.
    Type: Grant
    Filed: March 6, 1981
    Date of Patent: December 28, 1982
    Assignee: BASF Aktiengesellschaft
    Inventors: Wolfgang Vodrazka, Erhard Klahr, Knut Oppenlaender, Wolfgang Trieselt, Dieter Stoeckigt, Werner Neumann
  • Patent number: 4340766
    Abstract: Biodegradable and low-foaming cleaning agents and dishwashing agents containing non-ionic surfactants which have been obtained by reacting one or more adducts of a C.sub.8 -C.sub.20 -alkanol and from 4 to 14 moles of ethylene oxide with 1,2-butylene oxide in a molar ratio of from 1:1.6 to 1:2.4.
    Type: Grant
    Filed: January 22, 1981
    Date of Patent: July 20, 1982
    Assignee: BASF Aktiengesellschaft
    Inventors: Erhard Klahr, Albert Hettche, Wolfgang Trieselt, Dieter Stoeckigt, Horst Trapp
  • Patent number: 4280919
    Abstract: A detergent and cleanser which contains an oxyalkylated alcohol of the formula ##STR1## where R is C.sub.8 -C.sub.18 -alkyl, x is from 2 to 4.5 and y is from 2 to 5, as a low-foam, biodegradable surfactant additive.
    Type: Grant
    Filed: April 29, 1980
    Date of Patent: July 28, 1981
    Assignee: BASF Aktiengesellschaft
    Inventors: Dieter Stoeckigt, Dieter Kiessling, Johannes Perner, Wolfgang Trieselt, Horst Trapp
  • Patent number: 4239641
    Abstract: A method for regulating the viscosity of aqueous detergent and cleanser slurries, in which there are added to the slurries, as viscosity regulators, dihydric, trihydric or tetrahydric aliphatic alcohols, monobasic aliphatic carboxylic acids, hydroxycarboxylic acids, esters of the said alcohols and the said acids or mixtures of these, in which compounds the alcohols, carboxylic acids and hydroxycarboxylic acids, and the individual components of the esters, are of 5 to 9 carbon atoms, of which one is a quaternary atom, the alcohols and hydroxycarboxylic acids carry exclusively primary alcohol groups, and the carboxylic acids and hydroxycarboxylic acids have the carboxyl group bonded to the quaternary carbon atom.
    Type: Grant
    Filed: July 23, 1979
    Date of Patent: December 16, 1980
    Assignee: BASF Aktiengesellschaft
    Inventors: Johannes Perner, Paul Diessel, Dieter Stoeckigt, Franz Merger, Juergen Paetsch
  • Patent number: 4239552
    Abstract: A process for machine dishwashing, employing a rinsing liquor which contains carboxylic acids or hydroxycarboxylic acids or mixtures of these and dihydric, trihydric or tetrahydric alcohols, the alcohols and carboxylic acids being of 5 to 9 carbon atoms, of which one carbon atom is quaternary, the alcoholic hydroxyl groups being exclusively primary and the carboxyl group being bonded to the quaternary carbon atom.
    Type: Grant
    Filed: July 23, 1979
    Date of Patent: December 16, 1980
    Assignee: BASF Aktiengesellschaft
    Inventors: Johannes Perner, Dieter Stoeckigt, Paul Diessel, Franz Merger, Juergen Paetsch
  • Patent number: 4212760
    Abstract: To prevent the salting-out of nonionic surfactants from strongly alkaline (pH>9) aqueous solutions, solubilizers have been proposed but existing solubilizers do not have a sufficiently broad action spectrum. The invention seeks to provide solubilizers having a broader action spectrum and provides for this purpose monocarboxylic acids of 6 to 11 carbon atoms optionally in admixture with ene-adducts of maleic anhydride and unsaturated fatty acids of 12 to 24 carbon atoms or their triglycerides. The solutions are useful as cleansers and in the textile industry.
    Type: Grant
    Filed: December 7, 1978
    Date of Patent: July 15, 1980
    Assignee: BASF Aktiengesellschaft
    Inventors: Richard Baur, Knut Oppenlaender, Dieter Stoeckigt