Patents Assigned to Clariant GmbH
  • Additives for inhibiting gas hydrate formation
    Publication number: 20030013614
    Abstract: The invention relates to the use of compounds of the formula (1) 1
    Type: Application
    Filed: March 20, 2002
    Publication date: January 16, 2003
    Applicant: Clariant GmbH
    Inventors: Peter Klug, Uwe Dahlmann, Michael Feustel
  • Process for bleaching paper using bleaching-active dendrimer ligands
    Patent number: 6506218
    Abstract: Laundry detergents and cleaners which, in addition to a peroxide compound, comprise a compound of the formula (R1R1)N—X—N(R1R1)  (I) or metal complexes thereof, where X and R1 have the meanings listed in the description, are claimed.
    Type: Grant
    Filed: January 17, 2002
    Date of Patent: January 14, 2003
    Assignee: Clariant GmbH
    Inventors: Claudia Fischer, Nicole Reichardt, Jörg Issberner
  • Cogranulates comprising alkali metal phyllosilicates and disintegrants
    Patent number: 6506722
    Abstract: The invention relates to cogranulates comprising phyllosilicates and disintegrants, in particular cellulose, and to detergents and cleaners which comprise these cogranulates, preferably in tablet form.
    Type: Grant
    Filed: September 11, 2000
    Date of Patent: January 14, 2003
    Assignee: Clariant GmbH
    Inventors: Harald Bauer, Josef Holz, Guenther Schimmel, Armelle Pelissou
  • Fluid thickeners comprising neutralized crosslinked polymers of acrylamidoalkylsulonic acids and N-vinylamides
    Patent number: 6506833
    Abstract: Water-soluble or water-swellable polymers, preferably having a particle size no greater than 10 &mgr;m, which, in addition to from 0.01 to 5% by weight of crosslinking structures originating from monomers having at least two olefinic double bonds, comprise, in random distribution, from 1 to 50% by weight of the repeat structural unit (1) and from 49.99 to 98.99% by weight of the repeat structural unit (2), in which R1, R2 and R3 independently of one another are a hydrogen atom or a methyl group, and Z is a C1-C4-alkylene group. These polymers are used as thickeners, preferably in cosmetic or pharmaceutical preparations.
    Type: Grant
    Filed: December 20, 2001
    Date of Patent: January 14, 2003
    Assignee: Clariant GmbH
    Inventors: Peter Brungs, Mattias Löffler
  • Crystal polymorphs of a yellow disazo colorant, and their preparation
    Patent number: 6504045
    Abstract: The invention relates to six new crystal polymorphs, &agr; (alpha), &bgr; (beta), &ggr; (gamma), &dgr; (delta), &zgr; (zeta), and &eegr; (eta), of the disazo colorant of the formula I, having characteristic reflections in the X-ray diffraction spectrum. The novel crystal polymorphs are prepared by treatment in organic solvents.
    Type: Grant
    Filed: September 13, 2001
    Date of Patent: January 7, 2003
    Assignee: Clariant GmbH
    Inventors: Ruediger Jung, Hans-Joachim Metz, Joachim Weber, Martin U. Schmidt, Olaf Schupp, Andreas Wacker
  • Color-stable solution of dimethylaminoacetonitrile in water and process for preparing it
    Patent number: 6504043
    Abstract: The present invention relates to a process for preparing a colour-stable, aqueous dimethylaminoacetonitrile solution from a formaldehyde source, dimethylamine and hydrocyanic acid, wherein the reaction mixture contains 2,4-diamino-6-phenyl-1,3,5-triazine(benzoguanamine) in a concentration of from 0.001 to 5% by weight, based on formaldehyde, prior to the reaction and the starting substances are used stoichiometrically or in a ratio of 0.98-1.02 mol of formaldehyde and 0.95-1.10 mol of dimethylamine per mol of hydrocyanic acid. The resulting product remains colour-stable without a further purification step even after prolonged storage.
    Type: Grant
    Filed: March 5, 2001
    Date of Patent: January 7, 2003
    Assignee: Clariant GmbH
    Inventors: Rainer Fell, Götz Wilbert, Thomas Stährfeldt
  • Use of copolymers based on acrylamidoalkylsulfonic acids as thickeners in preparations comprising organic solvents
    Publication number: 20030004241
    Abstract: The invention relates to the use of copolymers consisting essentially of
    Type: Application
    Filed: April 16, 2002
    Publication date: January 2, 2003
    Applicant: Clariant GmbH
    Inventors: Matthias Loffler, Roman Morschhauser, Peter Klug
  • Particulate bleach activators based on acetonitriles
    Patent number: 6498133
    Abstract: Particulate bleach activators comprising 15 to 60% by weight of an acetonitrile, 20 to 70% by weight of a silicon-containing carrier material and 20 to 30% by weight of water, which are obtained by applying an aqueous solution, saturated at 10 to 40° C., of an acetonitrile onto the carrier material without subsequent drying, where the amount of saturated aqueous solution is measured such that the given limits for acetonitrile, carrier material and water are observed.
    Type: Grant
    Filed: November 16, 2001
    Date of Patent: December 24, 2002
    Assignee: Clariant GmbH
    Inventors: Georg Borchers, Robert Milbradt, Oliver Mogck, Frank Weinelt
  • Novel aminophosphonium compounds
    Publication number: 20020193592
    Abstract: The present invention relates to compounds of the formula 1
    Type: Application
    Filed: April 30, 2002
    Publication date: December 19, 2002
    Applicant: Clariant GmbH
    Inventors: Berthold Schiemenz, Thomas Wessel, Ralf Pfirmann
  • Water-soluble or water-swellable crosslinked copolymers
    Publication number: 20020193544
    Abstract: Water-soluble or water-swellable crosslinked copolymers consisting essentially of structural units of the formula 1 1
    Type: Application
    Filed: June 21, 2002
    Publication date: December 19, 2002
    Applicant: Clariant GmbH
    Inventors: Matthias Loffler, Roman Morschhauser
  • Laundry detergents and laundry treatment compositions comprising dye-transfer-inhibiting dye fixatives
    Publication number: 20020193280
    Abstract: The following dye-transfer-inhibiting dye fixatives are used in laundry detergents which comprise nonionic surfactants:
    Type: Application
    Filed: February 28, 2002
    Publication date: December 19, 2002
    Applicant: Clariant GmbH
    Inventors: Frank-Peter Lang, Helmut Berenbold, Michael Wessling
  • Water-soluble, sulfoalkyl-containing, hydrophobically modified cellulose ethers, process for preparing them, and their use as protective colloids in polymerizations
    Publication number: 20020188117
    Abstract: Water-soluble sulfoalkyl-containing hydrophobically modified cellulose ethers, processes for preparing them, and their use as protective colloids in polymerizations
    Type: Application
    Filed: June 25, 2002
    Publication date: December 12, 2002
    Applicant: Clariant GmbH
    Inventors: Reinhard Doenges, Horst Wurm
  • Storage-stable plastics additives
    Patent number: 6491853
    Abstract: The present application relates to storage-stable plastics additives which are prepared by cooling a mixture of 99.9 to 10% by weight of molten additive material and 0.1 to 90% by weight of crystalline additive material after a shaping process. The shaping process is carried out by forcing the mixture out of a tool provided with die openings, and cooling can be carried out on a cooled conveyor belt. Even after prolonged storage and/or handling, these plastics additives remain free-flowing and do not stick.
    Type: Grant
    Filed: November 6, 1996
    Date of Patent: December 10, 2002
    Assignee: Clariant GmbH
    Inventors: Karl Gaa, Günter Nowy, Gerhard Pfahler, Matthias Zäh
  • Heavy oils having improved properties and an additive therefor
    Patent number: 6488724
    Abstract: The additive described essentially comprises a selected alkoxylated fatty amine or fatty amine derivative and a special metal salt compound, preferably a metal soap. This additive for heavy oils effects a good emulsification or dispersion of asphaltenes and other higher-molecular weight compounds and, in addition, inter alia, increased storage stability, improved pumpability due to decreased viscosity of the oil and longer service lives of the filter systems. In addition, it also effects enhanced combustion of the heavy oils. The effective amount of additive in these oils is 2 to 2000 ppm. The oils described are suitable, in particular, as furnace fuel for industrial plants and power stations and as engine fuel for marine engines.
    Type: Grant
    Filed: October 27, 1997
    Date of Patent: December 3, 2002
    Assignee: Clariant GmbH
    Inventors: Günther Hertel, Michael Feustel, Hakan Byström, Geoffrey Richards
  • Emulsions
    Patent number: 6489395
    Abstract: Emulsions are claimed which comprise oligoesters as emulsifiers. These oligoesters have hitherto only been used as soil release polymers.
    Type: Grant
    Filed: December 8, 2000
    Date of Patent: December 3, 2002
    Assignee: Clariant GmbH
    Inventor: Matthias Löffler
  • Surfactant-free cosmetic, dermatological and pharmaceutical compositions
    Publication number: 20020176835
    Abstract: The invention relates to surfactant-free cosmetic, dermatological and pharmaceutical compositions, comprising at least one copolymer consisting essentially of
    Type: Application
    Filed: February 28, 2002
    Publication date: November 28, 2002
    Applicant: Clariant GmbH
    Inventors: Matthias Loffler, Roman Morschhauser, Michael Hornung
  • Process for the preparation of pigment granules
    Patent number: 6485558
    Abstract: The invention relates to a process for the preparation of pigment granules, which comprises adding a wax or a waxy polymer to an organic pigment during the finish in an organic or aqueous organic medium and spray-drying the aqueous suspension obtained after removal of the organic solvent by steam distillation or washing out with water.
    Type: Grant
    Filed: August 28, 2000
    Date of Patent: November 26, 2002
    Assignee: Clariant GmbH
    Inventors: Hans Joachim Metz, Heinfred Ohleier
  • Safer pigment preparations
    Patent number: 6479569
    Abstract: The invention relates to a pigment preparation comprising an organic pigment and 0.2 to 20% by weight, based on the total weight of the pigment preparation, of an ammonium polyphosphate or of an organophosphorus compound.
    Type: Grant
    Filed: December 8, 2000
    Date of Patent: November 12, 2002
    Assignee: Clariant GmbH
    Inventors: Rüdiger Jung, Klaus Saitmacher, Arpad Acs
  • Use of transition metal complexes having oxime ligands as bleach catalysts
    Publication number: 20020165110
    Abstract: Transition metal complexes used as bleach catalysts of the formula (1)
    Type: Application
    Filed: January 17, 2002
    Publication date: November 7, 2002
    Applicant: Clariant GmbH
    Inventors: Gerd Reinhardt, Michael Seebach, Nicole Reichardt, Laszlo I. Simandi, Tatiana M. Simandi, Gabor Besenyei
  • Dispersions for producing paint for concrete roof tiles, paint for concrete roof tiles and concrete roof tiles coated with such paint
    Patent number: 6475632
    Abstract: The present invention provides copolymer-based compositions which are used to produce point for roof tiles, in order to prevent algal vegetation, crack formation, increased water absorption, as well as chipping off of the paint, more particularly on concrete roof tiles.
    Type: Grant
    Filed: September 11, 2000
    Date of Patent: November 5, 2002
    Assignee: Clariant GmbH
    Inventors: Stephan Krieger, Klaus Zimmerschied, Erhard Lupprich