Patents by Inventor Wolfgang Nentwig

Wolfgang Nentwig 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: 7673927
    Abstract: In a motor vehicle having a tail gate (10) affixed to a lateral, rear pillar of the vehicle structure by means of at least one hinge so as to be pivotable about a substantially vertical axis (A-A), a hinge part that swings out together with the tail gate is located in an area of a lateral tail light (18) of the vehicle when the tail gate (10) is closed.
    Type: Grant
    Filed: April 12, 2006
    Date of Patent: March 9, 2010
    Assignee: Wilhelm Karmann GmbH
    Inventors: Franz-Ulrich Brockhoff, Winfried Bunsmann, Jochen Klein, Wolfgang Nentwig, Markus Grave
  • Publication number: 20060279108
    Abstract: In a motor vehicle having a tail gate (10) affixed to a lateral, rear pillar of the vehicle structure by means of at least one hinge so as to be pivotable about a substantially vertical axis (A-A), a hinge part that swings out together with the tail gate is located in an area of a lateral tail light (18) of the vehicle when the tail gate (10) is closed.
    Type: Application
    Filed: April 12, 2006
    Publication date: December 14, 2006
    Applicant: Wilhelm Karmann GmbH
    Inventors: Franz-Ulrich Brockhoff, Winfried Bunsmann, Jochen Klein, Wolfgang Nentwig, Markus Grave
  • Publication number: 20020123581
    Abstract: The present invention relates to a process for the preparation of rubber-like ethylene/&agr;-olefin copolymers and ethylene/&agr;-olefin/non-conjugate diene terpolymers using a metallocene as catalyst, which process is characterized in that the metallocene used is a compound of the general formula (I) 1
    Type: Application
    Filed: July 13, 2001
    Publication date: September 5, 2002
    Inventors: Peter Schertl, Wolfgang Nentwig, Rudiger Engehausen, Walter Kaminsky, Ulrich Weingarten
  • Publication number: 20020120055
    Abstract: The present invention relates to adhesive rubber mixtures consisting of at least one rubber and from 5 to 300 parts by weight of filler, the rubber having been prepared by polymerizing diolefins and, optionally, further vinylaromatic monomers in solution and introducing hydroxyl and/or carboxyl groups, that rubber having a total content of from 0.05 to 5 wt. % of bonded hydroxyl and/or carboxyl groups or their salts, a content of vinylaromatic monomers polymerized therein of from 0 to 50 wt. % and a content of diolefins of from 45 to 99.95 wt. %, the content of 1,2-bonded diolefins (vinyl content) being from 0 to 60 wt. % and the content of trans-1,4-bonded diolefin being from 0 to 40 wt. %, and from 2 to 20 parts by weight of sulfur or sulfur donors and, optionally, further rubbers, rubber auxiliaries and crosslinking agents.
    Type: Application
    Filed: October 5, 2001
    Publication date: August 29, 2002
    Inventors: Thomas Scholl, Ulrike Ilse Scholl, Philipp Scholl, Christine Scholl, Johannes Scholl, Jurgen Trimbach, Wolfgang Nentwig, Rudiger Engehausen
  • Patent number: 6414098
    Abstract: This invention relates to a catalyst system containing bisiminopyridyl complexes of cobalt and/or iron with bulky substituents on the bisiminopyridyl ligand, to a method for the polymerization of &agr;-olefins, particularly ethylene, and to the use of the polyolefins which can be produced by said method for the production of moldings of all types.
    Type: Grant
    Filed: April 7, 2000
    Date of Patent: July 2, 2002
    Assignee: Bayer Aktiengesellschaft
    Inventors: Rüdiger Engehausen, Wolfgang Nentwig, Peter Schertl, Michael Arndt-Rosenau, Oliver Pyrlik, Maud Guillemot
  • Patent number: 6399720
    Abstract: The present invention relates to a process for the avoidance of instability during the gas polymerization of rubber comprising the feeding of low volatility monomers supported in a particulate material into a fluidized bed reactor.
    Type: Grant
    Filed: July 14, 2000
    Date of Patent: June 4, 2002
    Assignee: Bayer Aktiengesellschaft
    Inventors: Michael Dauben, Wolfgang Nentwig, Jürgen M. Schneider
  • Patent number: 6291615
    Abstract: The present invention is directed to a catalyst system, the use thereof in the polymerization of dienes in a solution, suspension and vapor phase, and the use of diene rubbers produced therewith, exhibiting a high cis content, an average vinyl content and a low gel content.
    Type: Grant
    Filed: August 10, 1999
    Date of Patent: September 18, 2001
    Assignee: Bayer Aktiengesellschaft
    Inventors: Michael Dauben, Rüdiger Engehausen, Heinz Hermann Greve, Wolfgang Nentwig, Walter Kaminsky, Christian Strübel, Volker Scholz
  • Patent number: 6255245
    Abstract: The invention relates to a process for the preparation of supported polymerization catalyst systems comprising the steps of: a) dissolving at least one different transition metal complex in a mixture of at least two different solvents having different boiling points to form a solution, b) contacting said solution with at least one different support material, the volume of the solution being sufficient to form a slurry with the support material, the volume of the higher-boiling solvent being less than or equal to the total pore volume of the support, c) removing more than 90% of the solvent boiling at the lower temperature, and d) adding at least one co-catalyst.
    Type: Grant
    Filed: June 10, 1999
    Date of Patent: July 3, 2001
    Assignee: Bayer Aktiengesellschaft
    Inventors: Hans-Rafael Winkelbach, Peter Schertl, Wolfgang Nentwig
  • Patent number: 5567784
    Abstract: The production of diene rubbers polymerized by means of Nd catalysts and having reduced cold flow and low intrinsic odor is effected by the polymerization of diolefines adiabatically at temperatures of -20.degree. to 150.degree. C. in the presence of inert organic solvents and in the presence of metallo-organic mixed catalysts based on neodymium carboxylate, by subsequently depressurizing the reaction mixture obtained in this manner by reducing the pressure, and by treating the reaction mixture thereafter with disulphur dichloride, sulphur dichloride and/or thionyl chloride.
    Type: Grant
    Filed: September 20, 1995
    Date of Patent: October 22, 1996
    Assignee: Bayer AG
    Inventors: Wolfgang Wieder, Dieter Kuhlmann, Wolfgang Nentwig
  • Patent number: 4686263
    Abstract: The production of impact-resistant polystyrene with EPDM simplifies the process and produces improved products if a modified ethylene/propylene rubber consisting of styrene/butadiene- or diene polymers, ethylene, optionally propylene and an unconjugated diene are used as the elastifying component.The modified EPDM rubbers consisting of (a) from 20 to 90% by weight of ethylene units, (b) from 1 to 25% by weight of units of a butadiene/styrene copolymer containing a quantity of from 10 to 90% by weight of styrene, (c) from 0 to 10% by weight of units of an unconjugated diolefin and (d) C.sub.3 -C.sub.18 .alpha.-monolefin units to make up the difference to 100% by weight, are a further subject of this invention.
    Type: Grant
    Filed: July 22, 1985
    Date of Patent: August 11, 1987
    Assignee: Bayer Aktiengesellschaft
    Inventors: Manfred Beck, Wolfgang Nentwig