Patents Assigned to Huels Aktiengesellschaft
  • Publication number: 20020019477
    Abstract: A molding which comprises the following components:
    Type: Application
    Filed: June 22, 2001
    Publication date: February 14, 2002
    Applicant: Degussa-Huels Aktiengesellschaft
    Inventors: Wilfried Bartz, Franz-Erich Baumann, Guido Schmitz, Georg Oenbrink, Harald Haeger
  • Publication number: 20020016513
    Abstract: The first embodiment of the present invention provides a process, which includes:
    Type: Application
    Filed: January 24, 2001
    Publication date: February 7, 2002
    Applicant: Degussa-Huels Aktiengesellschaft
    Inventors: Stephan Laue, Andreas Liese, Christian Wandrey, Olaf Burkhardt, Jens Woeltinger, Andreas Bommarius, Karlheinz Drauz, Jean-Louis Philippe, Hans Henniges, Adreas Karau
  • Patent number: 6335101
    Abstract: A thermoplastic composite having a multiplicity of layers and comprising: I) a layer of a polyamide molding composition, II) a layer of a polyester molding composition, and III) a layer of an adhesion promoter adherent to I and II comprising at least 50% by weight of a blend of: a) from 20 to 80% by weight of a polyamide, prepared from &agr;) at least one diamine having from 6 to 12 carbon atoms, and &bgr;) an essentially stoichiometrically equivalent amount of at least one dicarboxylic acid comprising at least 5 mol % of a dicarboxylic acid having from 10 to 36 carbon atoms, and b) from 80 to 20% by weight of a polyester, prepared from &agr;) a mixture of from 30 to 95 mol % of an aromatic dicarboxylic acid having from 6 to 20 carbon atoms and from 70 to 5 mol % of the same dicarboxylic acid as in the polyamide of the adhesion promoter, having from 10 to 36 carbon atoms, and &bgr;) at least one diol having from 2 to 12 carbon atoms.
    Type: Grant
    Filed: February 22, 2000
    Date of Patent: January 1, 2002
    Assignee: Degussa-Hüls Aktiengesellschaft
    Inventors: Harald Haeger, Guido Schmitz, Franz-Erich Baumann, Giselher Franzmann, Georg Oenbrink
  • Patent number: 6333429
    Abstract: The invention relates to a process for preparing alkali metal salts of malonic monoalkyl esters by selective saponification of malonic dialkyl esters using a basic alkali metal compound which comprises preparing from the malonic dialkyl ester and an alkali metal alkoxide, in a first stage, a CH-acid alkali metal salt of the malonic dialkyl ester and hydrolyzing this in a second stage by the action of water.
    Type: Grant
    Filed: July 21, 2000
    Date of Patent: December 25, 2001
    Assignee: Degussa-Huels Aktiengesellschaft
    Inventor: Juergen Muhr
  • Publication number: 20010050478
    Abstract: The molding of the present invention has a continuous conducting path from an inner to an outer surface, comprising:
    Type: Application
    Filed: May 29, 2001
    Publication date: December 13, 2001
    Applicant: DEGUSSA-HUELS AKTIENGESELLSCHAFT
    Inventor: Guido Schmitz
  • Patent number: 6323356
    Abstract: The present invention relates to a process for the preparation of alkoxysilanes in which at least one halogenosilane is reacted with at least one alcohol in the presence of metallic magnesium and the alkoxysilane is isolated from the crude product.
    Type: Grant
    Filed: November 13, 2000
    Date of Patent: November 27, 2001
    Assignee: Degussa-Huels Aktiengesellschaft
    Inventors: Peter Löwenberg, Thomas Schlosser, Michael Horn, Ralf Laven, Jaroslaw Monkiewicz
  • Patent number: 6316044
    Abstract: Antimicrobial activity is imparted to the surface(s) of an apparatus or article by polymerizing tert-butylaminoethyl methacrylate in the presence of the apparatus or article by which adhesion of the polymer to the surface(s) is achieved. In a preferred embodiment of the invention the antimicrobial monomer is graft polymerized on the surface(s).
    Type: Grant
    Filed: March 17, 2000
    Date of Patent: November 13, 2001
    Assignee: Degussa-Huels Aktiengesellschaft
    Inventors: Peter Ottersbach, Frank Hill, Christine Anders
  • Publication number: 20010034417
    Abstract: Molecular weight-enlarged, homogeneously soluble ligands are provided that are especially useful for hydrogenation catalysts, wherein the ligands contain homochiral active centers of bis(3,4-diarylphosphinyl)pyrrolidines, and their use in producing cataylsts for enantioselective reactions, as well as the catalysts thus produced.
    Type: Application
    Filed: January 24, 2001
    Publication date: October 25, 2001
    Applicant: Degussa-Huels Aktiengesellschaft
    Inventors: Olaf Burkhardt, Jens Woeltinger, Andreas Bommarius, Juan Jose Almena Perea, Hans Henniges, Karlheinz Drauz, Andreas Karau, Jean-Louis Philippe, Hans-Peter Krimmer, Gunther Oehme
  • Publication number: 20010032825
    Abstract: A dish rack for a dishwasher, including a frame and a coating covering the frame and configured to distribute water over a surface of the coating in a thin film.
    Type: Application
    Filed: March 9, 2001
    Publication date: October 25, 2001
    Applicant: DEGUSSA-HUELS AKTIENGESELLSCHAFT
    Inventors: Guenter Hess, Heinz Scholten
  • Patent number: 6306967
    Abstract: A solid, oxazoline-terminated, urethane-functional polyaddition compound having a melting point ranging from 40-130° C. and a free NCO content of less than 3% by weight, consisting essentially of a reaction product of a) at least one at least difunctional polyisocyanate and b) at least one hydroxy- or amino-functional oxazoline derivative, the ratio of NCO to OH equivalents ranging from 0.8:1.2 to 1.2:0.8.
    Type: Grant
    Filed: September 13, 1999
    Date of Patent: October 23, 2001
    Assignee: Degussa-Hüls Aktiengesellschaft
    Inventors: Emmanouil Spyrou, Andreas Wenning
  • Publication number: 20010031848
    Abstract: Stable 1:1 monoadducts of secondary aminoalkylalkoxy-silanes and diisocyanates, and a process for preparing them.
    Type: Application
    Filed: February 7, 2001
    Publication date: October 18, 2001
    Applicant: Degussa-Huels Aktiengesellschaft
    Inventors: Manuela Windmueller, Stephan Kohlstruk
  • Publication number: 20010029310
    Abstract: A process for the isolation of high-boiling monomers from distillation residue formed in the cyclodimerization and/or cyclotrimerization of 1,3-butadiene after target products of cyclooctadiene, vinylcyclohexene and/or cyclododecatriene have been separated off, comprising extracting the distillation residue with a nonpolar or slightly polar solvent, separating off insoluble oligomers and polymers that have at least partly crystallized by mechanical separation, removing the extractant, and isolating the high-boiling monomers.
    Type: Application
    Filed: January 31, 2001
    Publication date: October 11, 2001
    Applicant: DEGUSSA-HUELS AKTIENGESELLSCHAFT
    Inventors: Thomas Schiffer, Matthias May, Norbert WILCZOK, Georg Oenbrink
  • Patent number: 6300413
    Abstract: A crosslinkable hot-melt adhesive composition, comprising a reactive powder mixed with a crosslinking component of a crosslinking agent bound in a polyolefin matrix, wherewith the components of the composition do not react by crosslinking until the mixture is melted, said composition being useful for the coating and/or lamination of sheet-like structures.
    Type: Grant
    Filed: March 3, 1999
    Date of Patent: October 9, 2001
    Assignee: Degussa-Huels Aktiengesellschaft
    Inventors: Ulrich Simon, Thorsten Gurke, Hans-Willi Losensky
  • Patent number: 6297188
    Abstract: Particulate magnesium ethoxide having a high coarse particle content can be obtained in a simple and economical manner by the present invention, which provides a process for preparing particulate magnesium ethoxide having a coarse grain content, and includes reacting metallic, optionally activated, magnesium with liquid ethanol under pressure at a temperature above 78° C. The present invention also relates to particulate magnesium ethoxide having a coarse grain content, which contains: <40% by weight of a screening fraction ≦500 &mgr;m and ≧60% by weight of a screening fraction >500 &mgr;m.
    Type: Grant
    Filed: October 27, 1999
    Date of Patent: October 2, 2001
    Assignee: Degussa-Huels Aktiengesellschaft
    Inventors: Reinhold Schork, Burkhard Standke, Hartwig Rauleder, Albert-Johannes Frings, Michael Horn, Peter Jenkner, Jaroslaw Monkiewicz
  • Patent number: 6294070
    Abstract: A process for electrolytically producing an amalgam from metal salt, using an anion exchanger membrane. The chlorine-free process provides amalgam produced from metal salt and having a high degree of purity, and ensures advantageous parameters, such as a low cell voltage and high current efficiencies.
    Type: Grant
    Filed: March 19, 1999
    Date of Patent: September 25, 2001
    Assignee: Degussa-Huels Aktiengesellschaft
    Inventors: Carl Heinz Hamann, Peter Schmittinger, Joerg Helling
  • Publication number: 20010021787
    Abstract: Cyanoacetamide is prepared without additional catalyst by esterification of crude cyanoacetic acid with a monohydric alcohol which forms an azeotrope with water and has 4 to 10 carbon atoms, reacting the resulting ester with ammonia in the presence of a basic catalyst to give cyanoacetamide, and work-up by a mechanical separating operation and a thermal treatment.
    Type: Application
    Filed: February 27, 2001
    Publication date: September 13, 2001
    Applicant: DEGUSSA-HUELS AKTIENGESELLSCHAFT
    Inventors: Manuela Imig, Manfred Kaufhold, Thomas Kalz
  • Publication number: 20010021779
    Abstract: A method for separation of enantiomers of a lactam represented by formula (I): 1
    Type: Application
    Filed: December 22, 2000
    Publication date: September 13, 2001
    Applicant: Degussa-Huels Aktiengesellschaft
    Inventors: Kurt Guenther, Stefan Merget, Karlheinz Drauz, Hans-Peter Krimmer
  • Publication number: 20010021748
    Abstract: Transparent or pigmented powder coating materials with crosslinkers comprising hydroxyalkylamides and blocked nonaromatic polyisocyanates.
    Type: Application
    Filed: February 23, 2001
    Publication date: September 13, 2001
    Applicant: DEGUSSA-HUELS AKTIENGESELLSCHAFT
    Inventor: Andreas Wenning
  • Patent number: 6288256
    Abstract: An aqueous organopolysiloxane-containing composition comprising organopolysiloxanes of formula I: HO [Si(A)(CH3)z(OH)1−zO]a[Si(B)(R2)y(OH)1−yO]b[Si(C)(CH3)O]c[Si(D)(OH)O]dH.
    Type: Grant
    Filed: January 12, 1999
    Date of Patent: September 11, 2001
    Assignee: Degussa-Huels Aktiengesellschaft
    Inventors: Burkhard Standke, Roland Edelmann, Albert-Johannes Frings, Michael Horn, Peter Jenkner, Ralf Laven, Helmut Mack, Jaroslaw Monkiewicz
  • Patent number: 6288264
    Abstract: Cyanoacetamide is prepared without additional catalyst by esterification of crude cyanoacetic acid with a monohydric alcohol which forms an azeotrope with water and has 4 to 10 carbon atoms, reacting the resulting ester with ammonia in the presence of a basic catalyst to give cyanoacetamide, and work-up by a mechanical separating operation and a thermal treatment.
    Type: Grant
    Filed: February 27, 2001
    Date of Patent: September 11, 2001
    Assignee: Degussa-Huels Aktiengesellschaft
    Inventors: Manuela Imig, Manfred Kaufhold, Thomas Kalz