Abstract: The present invention provides nucleotide sequences from Coryneform bacteria which code for the OtsA protein and processes for the fermentative preparation of amino acids using bacteria in which the otrA gene is attenuated.
Type:
Application
Filed:
March 17, 2004
Publication date:
November 18, 2004
Applicant:
DEGUSSA AG
Inventors:
Thomas Hermann, Andreas Wolf, Susanne Morbach, Reinhard Kraemer
Abstract: Supported, hydrogenating catalyst in powder form containing, as a catalytically active component, a primary precious metal component, a secondary precious metal component and one or more non-precious metal components. It is used for the hydrogenation of nitroaromatics, in particular nitrobenzene and DNT.
Type:
Grant
Filed:
November 6, 2002
Date of Patent:
November 16, 2004
Assignee:
Degussa AG
Inventors:
Jürgen Krauter, Michael Gross, Uwe Packruhn, Markus Göttlinger
Abstract: The invention relates to an isolated polynucleotide containing a polynucleotide sequence selected from the group comprising
a) polynucleotide which is at least 70% identical to a polynucleotide which codes for a polypeptide containing the amino acid sequence of SEQ ID no. 2,
b) polynucleotide which codes for a polypeptide containing an amino acid sequence which is at least 70% identical to the amino acid sequence of SEQ ID no.2,
c) polynucleotide which is complementary to the polynucleotides of a) or b), and
d) polynucleotide containing at least 15 successive nucleotides of the polynucleotide sequence of a), b) or c),
and a process for the fermentative production of L-amino acids with enhancement of the ptsH gene coding for component H of the phosphotransferase system, and the use of the above polynucleotides as primer or hybridisation probe.
Type:
Grant
Filed:
March 29, 2001
Date of Patent:
November 16, 2004
Assignee:
Degussa AG
Inventors:
Mike Farwick, Bettina Mockel, Walter Pfefferle
Abstract: 4-alkylpyrimidine is produced by reacting formamide with a formyl methyl alkyl ketone diacetal without the addition of water at a temperature that allows removal of the 4-alkylpyrimidine from the reaction mixture by distillation. The process is readily applicable on an industrial scale and succeeds without the addition of water or ammonium chloride as a catalyst and permits the production of 4-alkylpyrimidine in good yields and excellent purities without time-consuming extraction steps.
Type:
Application
Filed:
February 17, 2004
Publication date:
November 11, 2004
Applicant:
DEGUSSA AG
Inventors:
Hans Henniges, Hans-Juergen Pitz, Christoph Theis, Manfred Neumann
Abstract: A process for preparing cyclododecene by selective gas-phase hydrogenation of at least one starting material selected from cyclododecatriene, cyclododecadiene and mixtures thereof, wherein the starting material present in the gas phase is hydrogenated in the presence of a catalyst in a fixed-bed reactor and the Bodenstein number for the process is greater than 100.
Type:
Application
Filed:
March 2, 2004
Publication date:
November 11, 2004
Applicant:
DEGUSSA AG
Inventors:
Juergen Herwig, Norbert Wilczok, Martin Roos, Rudolf Burghardt, Johann Gaube, Georg Oenbrink, Bernd Guenzel
Abstract: The present invention relates to isolated polynucleotides from Corynebacterium glutamicum encoding proteins of the transcription activator (MetR) and O-succinylhomoserine sulfhydrylase (MetZ). The invention also relates to producing L-amino acids, particularly methionine, in coryneform cells having attenuated metR and metZ genes.
Type:
Grant
Filed:
August 2, 2001
Date of Patent:
November 9, 2004
Assignee:
Degussa AG
Inventors:
Brigitte Bathe, Walter Pfefferle, Klaus Huthmacher, Christian Rueckert, Joern Kalinowski, Alfred Puehler, Michael Binder, Dieter Greissinger, Georg Thierbach
Abstract: A pipe whose at least interior wall structural component is comprised of:
I. from 40 to 80 parts by weight of a polyamide, and
II. from 60 to 20 parts by weight of a flexible polymer whose main chains consist of carbon atoms, where the amounts of I and II in parts by weight total 100, the pipe being useful for the piping of aqueous, aqueous-alcoholic or purely alcoholic liquids.
Type:
Grant
Filed:
November 18, 1999
Date of Patent:
November 9, 2004
Assignee:
Degussa AG
Inventors:
Reinhard Beuth, Olivier Farges, Harald Kaiser, Michael Schlobohm
Abstract: The present invention is directed to nucleotide sequences coding for a bacterial enolase enzyme. These sequences may be used in improved methods for the fermentative preparation of amino acids using coryneform bacteria.
Type:
Application
Filed:
December 8, 2003
Publication date:
November 4, 2004
Applicant:
Degussa AG
Inventors:
Bettina Mockel, Walter Pfefferle, Thomas Hermann, Alfred Puhler, Jorn Kalinowski, Brigitte Bathe
Abstract: Solid polyurethane powder compositions which contain uretdione groups and cure at low baking temperatures, to processes for preparing such compositions, and to their use for producing plastics, especially powder coatings, which crosslink to high-gloss or matt, light- and weather-stable coating films.
Type:
Application
Filed:
May 3, 2004
Publication date:
November 4, 2004
Applicant:
DEGUSSA AG
Inventors:
Emmanouil Spyrou, Holger Loesch, Andreas Wenning, Joern Volker Weiss, Werner Grenda
Abstract: An organosilane masterbatch containing (a) 2-20 parts by weight of rubber, (b) 0-60 parts by weight of filler, (c) 5-55 parts by weight of organosilane and (d) 0-10 parts by weight of dispersing agent. A process for preparing the organosilane masterbatch by mixing the rubber, filler, organosilane and dispersing agent in a banbury or kneader, extruding and cutting into pieces. Rubber mixtures containing the organosilane masterbatch can be used in rubber mixtures.
Abstract: The present invention relates to isolated polynucleotides which encode proteins with O-acetylhomoserine sulfhydrylase, vectors and cells containing the polynucleotides as well as methods of preparing L-amino acids.
Type:
Grant
Filed:
August 2, 2001
Date of Patent:
November 2, 2004
Assignee:
Degussa AG
Inventors:
Bettina Moeckel, Walter Pfefferle, Klaus Huthmacher, Christian Rueckert, Joern Kalinowski, Alfred Puehler, Michael Binder, Dieter Greissinger, Georg Thierbach
Abstract: The present invention relates to polynucleotides corresponding to the lysR3 gene and which encode a LysR3 transcriptional regulator, methods of producing L-amino acids, and methods of screening for polynucleotides which encode proteins having LysR3 transcriptional regulator activity.
Abstract: The present invention provides an aqueous dispersion containing at least two powder types selected from one or more metal oxide powders and/or one or more non-metal oxide powder. The present invention also provides a coating composition containing this dispersion, an inkjet recording medium containing the coating composition, and methods of making the same.
Type:
Grant
Filed:
March 24, 2003
Date of Patent:
October 26, 2004
Assignee:
Degussa AG
Inventors:
Christoph Batz-Sohn, Thomas Scharfe, Wolfgang Lortz
Abstract: The invention relates to nucleotide sequences coding for the accDA gene and to a process for the preparation of L-amino acids, especially L-lysine, by fermentation using corynebacteria in which the accDA gene is amplified.
Type:
Grant
Filed:
December 21, 2001
Date of Patent:
October 26, 2004
Assignee:
Degussa AG
Inventors:
Yvonne Tilg, Bernhard Eikmanns, Lothar Eggeling, Hermann Sahm, Bettina Möckel
Abstract: The invention relates to a method for hydrogenation of aromatic urethanes, which contain one or more aromatic rings and one or more urethane groups bonded directly and/or indirectly to one aromatic ring or to different aromatic rings, using hydrogen in the presence of a supported catalyst, which contains ruthenium as active metal. The catalyst support of the catalyst to be used according to the invention has a BET surface ranging from larger than 30 m2/g to smaller than 70 m2/g and more than 50% of the pore volume of the catalyst support is represented by macropores with a pore diameter of larger than 50 nm and less than 50% is represented by mesopores with a pore diameter of 2 to 50 nm. The method is suitable in particular for hydrogenation of dibutyl 4,4′-methylenedicarbanilate to dibutyl 4,4′-methylenedicyclohexylcarbamate with a trans-trans isomer content of <30%, preferably of <20%, particularly preferably of 5 to 15%.
Type:
Grant
Filed:
December 31, 2002
Date of Patent:
October 26, 2004
Assignee:
Degussa AG
Inventors:
Norbert Finke, Ranier Lomoelder, Christian Lettmann, Guido Stochniol
Abstract: Functionalized silicas with 3-methacryloxypropylsilyl and/or glycidyloxypropylsilyl groups on the surface are prepared by mixing the silicas with the silane and heat-treating the mixture. The silicas are employed, for example, in solvent-containing coatings.
Type:
Grant
Filed:
October 19, 2001
Date of Patent:
October 26, 2004
Assignee:
Degussa AG
Inventors:
Jürgen Meyer, Manfred Ettlinger, Stephanie Frahn, Dieter Kerner
Abstract: A process for the bonding of a plastics pipe to another plastics part by ultrasound welding using sound waves which act longitudinally with respect to the pipe axis, while the arrangement of the areas to be welded is substantially parallel to the pipe axis. The welding procedure is combined with the forced insertion of the other plastics part into the plastics pipe in such a way that there is at least some overlap between the exposure to sound and the forced insertion.
Type:
Application
Filed:
April 19, 2004
Publication date:
October 21, 2004
Applicant:
DEGUSSA AG - Intellectual Property Management
Inventors:
Sylvia Monsheimer, Rainer Goering, Hans Ries, Guenter Brudny
Abstract: The invention relates to polynucleotides corresponding to the ccpA2 gene and which encode a CcpA2 catabolite control protein, methods of producing L-amino acids, and methods of screening for polynucleotides which encode proteins having CcpA2 catabolite control activity.
Type:
Application
Filed:
December 2, 2003
Publication date:
October 21, 2004
Applicant:
DEGUSSA AG
Inventors:
Bettina Moeckel, Caroline Kreutzer, Thomas Hermann, Mike Farwick, Achim Marx, Walter Pfefferle
Abstract: The present invention is directed to nucleotide sequences coding for phosphofructokinase which have been derived from Corynebacterium glutamicum.