Patents Assigned to Clariant GmbH
  • Quinacridone mixed-crystal pigments of the gamma phase
    Patent number: 6312512
    Abstract: The invention relates to novel quinacridone mixed crystal pigments consisting of a) from 82.5 to 99% by weight of unsubstituted &ggr;-phase quinacridone of the formula (I) in which R1 and R2 are hydrogen atoms and b) from 1 to 17.5% by weight of one or more 2,9- and/or 3,10-substituted quinacridones of the formula (I) in which the substituents R1 and R2 are identical or different and are chlorine, bromine or fluorine atoms or C1-C4-alkyl, C1-C4-alkoxy or carboxamido groups which can be substituted by C1-C6-alkyl groups, and R1 can additionally be a hydrogen atom, and to pigment preparations comprising said quinacridone mixed crystal pigments.
    Type: Grant
    Filed: January 12, 2000
    Date of Patent: November 6, 2001
    Assignee: Clariant GmbH
    Inventors: Manfred Urban, Martin Boehmer, Joachim Weber, Dieter Schnaitmann, Margit Haberlick
  • Water-soluble, sulfoalkyl-containing, hydrophobically modified cellulose ethers, processes for preparing them, and their use in emulsion paints
    Patent number: 6313287
    Abstract: Water-soluble sulfoalkyl-containing hydrophobically modified cellulose ethers, processes for preparing them, and their use in emulsion paints The present invention relates to water-soluble ionic cellulose ethers from the group of the hydroxyalkylcelluloses which are substituted by on average from 0.001 to 1.0 alkyl group per anhydroglucose unit and which carry from 0.01 to 0.1 sulfoalkyl group per anhydroglucose unit, to processes for preparing them and to the use of water-soluble ionic cellulose ethers from the group of the hydroxyalkylcelluloses which are substituted by on average from 0.001 to 1.0 alkyl group per anhydroglucose unit and which carry from 0.01 to 0.4 sulfoalkyl group per anhydroglucose unit in emulsion paints.
    Type: Grant
    Filed: October 26, 1999
    Date of Patent: November 6, 2001
    Assignee: Clariant GmbH
    Inventors: Reinhard Doenges, Juergen Kirchner
  • Use of polymers as antimisting additives in water-based cooling lubricants
    Patent number: 6313076
    Abstract: The invention provides for the use of copolymers containing structural units derived from the compounds of the formulae 1 and 2 in which R1 and R2 independently of one another are a terminally unsaturated alkenyl radical having 3 to 5 carbon atoms, R3 and R4 independently of one another are C1-C4 alkyl, R5 is H or C1-C4 alkyl, R6 is a branched or unbranched C1-C6 alkylene radical, X is an anion, and Y is an alkali metal or ammonium to prevent misting in water-based cooling lubricants.
    Type: Grant
    Filed: July 6, 2000
    Date of Patent: November 6, 2001
    Assignee: Clariant GmbH
    Inventors: Rainer Kupfer, Karl Heinz Heier
  • Halogen-free, flame-retardant rigid polyurethane foam and a process for its production
    Publication number: 20010036973
    Abstract: The invention relates to a halogen-free, flame-retardant rigid polyurethane foam, wherein a combination of oxalkylated alkylphosphonic acids and ammonium polyphosphate is present as flame retardant, and to a process for its production.
    Type: Application
    Filed: March 27, 2001
    Publication date: November 1, 2001
    Applicant: Clariant GmbH
    Inventors: Anne Witte, Wilfried Krieger
  • Silicate-, borate-and phosphate-free cooling fluids based on glycols and having improved corrosion behavior
    Patent number: 6309559
    Abstract: The invention relates to a coolant concentrate comprising a) from 0.1 to 6% by weight of at least one monocarboxylic and/or dicarboxylic acid having from 4 to 16 carbon atoms in the form of alkali metal salts, b) from 0.02 to 2% by weight of a triazinetriiminocarboxylic acid in the form of its alkali metal salt, c) from 0.02 to 2% by weight of at least one hydrocarbon triazole, d) from 0.01 to 1% by weight of at least one soluble alkaline earth metal salt, e) if desired, up to 4% by weight of water, and f) glycols to 100% by weight, in each case based on the total weight of the concentrate.
    Type: Grant
    Filed: June 30, 2000
    Date of Patent: October 30, 2001
    Assignee: Clariant GmbH
    Inventors: Peter Minks, Johann Schuster
  • Halogen-free, pentane-blown, flame-retardant rigid polyurethane foam and a process for its production
    Publication number: 20010034388
    Abstract: The invention relates to a halogen-free, pentane-blown, flame-retardant rigid polyurethane foam, wherein oxalkylated alkylphosphonic acids are present as flame retardants.
    Type: Application
    Filed: March 27, 2001
    Publication date: October 25, 2001
    Applicant: Clariant GmbH
    Inventors: Anne Witte, Wilfried Krieger
  • Halogen-free, water-blown, flame-retardant rigid polyurethane foam and a process for its production
    Publication number: 20010034377
    Abstract: The invention relates to a halogen-free, water-blown, flame-retardant rigid polyurethane foam, which comprises oxalkylated alkylphosphonic acids as flame retardant.
    Type: Application
    Filed: March 27, 2001
    Publication date: October 25, 2001
    Applicant: Clariant GmbH
    Inventors: Anne Witte, Wilfried Krieger
  • Mixtures of carboxylic acids, their derivatives and hydroxyl-containing polymers and their use for improving the lubricating effect of oils
    Publication number: 20010034308
    Abstract: The invention relates to additives for improving lubricating properties of fuel oils, comprising
    Type: Application
    Filed: March 16, 2001
    Publication date: October 25, 2001
    Applicant: Clariant GmbH
    Inventors: Matthias Krull, Werner Reimann
  • Copolymer blends and their use as additives for improving the cold flow properties of middle distillates
    Publication number: 20010034410
    Abstract: The invention relates to additives for improving the cold flow properties of middle distillates, containing from 10 to 95% by weight of copolymers A), from 5 to 90% by weight of copolymers B) and, if required, from 0 to 70% by weight of copolymers C), which correspond to the following formulae:
    Type: Application
    Filed: March 14, 2001
    Publication date: October 25, 2001
    Applicant: Clariant GmbH
    Inventors: Matthias Krull, Thomas Volkmer, Werner Reimann
  • Process for preparing amido phenyl esters
    Patent number: 6307076
    Abstract: Process for the preparation of amido phenyl esters by reacting an amido acid with an inorganic acid chloride in the melt and reacting the resulting amidocarboxylic acid halide with a phenol derivative in an organic solvent.
    Type: Grant
    Filed: January 12, 2000
    Date of Patent: October 23, 2001
    Assignee: Clariant GmbH
    Inventors: Michael Seebach, Peter Naumann, Uwe Bäumler
  • Producing pigmented powder coating materials
    Publication number: 20010031809
    Abstract: The invention relates to a process for producing pigmented powder coating materials using montanic acid esters, amides or salts as dispersants for the pigments, and to the corresponding powder coating materials.
    Type: Application
    Filed: March 1, 2001
    Publication date: October 18, 2001
    Applicant: Clariant GmbH
    Inventor: Manfred Schmalzl
  • Water-soluble polyalkylene glycol oils having a high viscosity index and low aerosol toxicity
    Publication number: 20010031855
    Abstract: The invention relates to ethylene oxide/propylene oxide copolymers which are obtainable by copolymerizing ethylene oxide and propylene oxide with an alcohol having 4 to 12 carbon atoms and 4 to 12 OH groups, the copolymer having an ethylene oxide/propylene oxide weight ratio of from 40:60 to 60:40 and a molecular weight of from 2000 to 10000 g/mol, and to their use in lubricant formulations, formulations for fiber preparation and metal machining fluids.
    Type: Application
    Filed: April 17, 2001
    Publication date: October 18, 2001
    Applicant: Clariant GmbH
    Inventors: Klaus Pollmann, Rainer Kupfer
  • Detergents, cleaning compositions and disinfectants comprising chlorine-active substances and fatty acid alkyl ester ethoxylates
    Patent number: 6303564
    Abstract: Detergents, cleaning compositions and disinfectants comprising a chlorine-active substances and fatty acid alkyl ester ethoxylates Detergents, cleaning compositions and disinfectants comprising a chlorine-active substance and a fatty acid alkyl ester ethoxylate of the formula RO(CH2CH2O)nCOR1 in which R is C1-C4-alkyl, R1 is C5-C22-alkyl or C5-C22-alkenyl, and n is a number from 1 to 30.
    Type: Grant
    Filed: December 1, 1998
    Date of Patent: October 16, 2001
    Assignee: Clariant GmbH
    Inventors: Cheryl Ann Littau, Ignaz Wimmer
  • Water-soluble or water-swellable crosslinked copolymers
    Publication number: 20010029287
    Abstract: Water-soluble or water-swellable crosslinked copolymers consisting essentially of structural units of the formula 1 1
    Type: Application
    Filed: January 11, 2001
    Publication date: October 11, 2001
    Applicant: Clariant GmbH
    Inventors: Matthias Loffler, Roman Morschhauser
  • Black trisazo metal complex dyes
    Publication number: 20010027734
    Abstract: Disclosed are metal complexes of trisazo dyes of the general formula 4 1
    Type: Application
    Filed: March 23, 2001
    Publication date: October 11, 2001
    Applicant: Clariant GmbH
    Inventors: Josef Geisenberger, Andreas Wuzik
  • Phyllosilicate-containing detergent and cleaner component
    Patent number: 6300303
    Abstract: The invention relates to a phyllosilicate-containing detergent and cleaner component which has a bulk density of less than 540 g/l, a mean particle diameter of more than 150 &mgr;m, a particle size fraction below 150 &mgr;m of less than 10%, a particle size fraction above 1180 &mgr;m of less than 5% and a flow factor of more than 15. The invention also relates to the use of the abovementioned phyllosilicate-containing detergent and cleaner component for the preparation of detergent constituents.
    Type: Grant
    Filed: December 16, 1998
    Date of Patent: October 9, 2001
    Assignee: Clariant GmbH
    Inventors: Harald Bauer, Josef Holz, Günther Schimmel
  • Process for preparing dialkylphosphinic acids
    Patent number: 6300516
    Abstract: The invention relates to a process for preparing dialkylphosphinic acids and/or alkali metal salts thereof by reacting olefins with alkylphosphonous and/or hypophosphorous acid and/or alkali metal salts thereof, which comprises carrying out the reaction in the presence of a free-radical initiator. The invention also relates to the use of the products prepared by the abovementioned process for preparing flame retardants.
    Type: Grant
    Filed: November 24, 1998
    Date of Patent: October 9, 2001
    Assignee: Clariant GmbH
    Inventors: Norbert Weferling, Hans-Peter Schmitz, Günter Kolbe
  • Flame-retardant coating
    Publication number: 20010027226
    Abstract: The invention relates to a flame-retardant coating which forms an insulating layer and is based on substances which carbonize and which form a foam layer in the event of a fire, on film-forming binders, on blowing agents and on customary auxiliaries and additives, wherein the blowing agent and foam layer forming substance present comprises melamine polyphosphate.
    Type: Application
    Filed: March 30, 2001
    Publication date: October 4, 2001
    Applicant: Clariant GmbH
    Inventors: Volker Thewes, Wolf-Dieter Pirig
  • Process for preparing fatty acid N-alkylpolyhydroxyamides
    Publication number: 20010023298
    Abstract: A process for preparing fatty acid N-alkylpolyhydroxyamides of the formula
    Type: Application
    Filed: December 21, 2000
    Publication date: September 20, 2001
    Applicant: Clariant GmbH
    Inventor: Frank Weinelt
  • Surfactant-containing formulations
    Patent number: 6291422
    Abstract: The invention relates to surfactant-containing formulations which comprise, as surfactant, an N-(3-dialkylamino)propyl-N-polyhydroxyalkylcarboxamide of the formula where R is an aliphatic radical having from 8 to 24 carbon atoms, R1 and R2, which are identical or different, are alkyl groups having from 1 to 4 carbon atoms or hydroxyalkyl groups having from 2 to 4 carbon atoms, and Z is a linear polyhydroxyhydrocarbon radical having at least 3 OH groups, which may also be alkoxylated, and also to their acid addition products. The surfactant-containing formulations are used in industrial and standard household surfactant compositions.
    Type: Grant
    Filed: May 17, 1999
    Date of Patent: September 18, 2001
    Assignee: Clariant GmbH
    Inventors: Angelika Turowski-Wanke, Matthias Löffler, Hans Jürgen Scholz, Werner Skrypzak, Bernd Papenfuhs