Patents by Inventor Thomas Eckel

Thomas Eckel 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).

  • Publication number: 20030008964
    Abstract: A thermoplastic molding composition containing talc is disclosed. The composition wherein talc has a median particle size of less than 1000 nm further contains a polycarbonate and/or polyester-carbonate, and a graft polymer having as graft base a rubber having a glass transition temperature of below about 10° C. is suitable for preparing molded articles having improved mechanical properties, such as weld line strength, elongation at break and toughness at low temperatures.
    Type: Application
    Filed: June 5, 2002
    Publication date: January 9, 2003
    Inventors: Andreas Seidel, Marc Vathauer, Thomas Eckel, Holger Warth, Dieter Wittmann
  • Publication number: 20020161078
    Abstract: A flame retardant, chemical and impact resistant, thermoplastic molding composition is disclosed.
    Type: Application
    Filed: February 21, 2002
    Publication date: October 31, 2002
    Inventors: Michael Zobel, Andreas Seidel, Thomas Eckel, Torsten Derr, Dieter Wittmann
  • Publication number: 20020147256
    Abstract: The invention relates to flame-resistant polycarbonate compositions comprising a phosphorus compound of the general formula (I), 1
    Type: Application
    Filed: July 23, 2001
    Publication date: October 10, 2002
    Inventors: Thomas Eckel, Nikolaus Janke, Uwe Peucker, Andreas Seidel, Dieter Wittmann
  • Patent number: 6461732
    Abstract: Composites of at least two different plastics materials joined directly to one another, wherein A) is a thermoplastic polymer or a thermoplastic mixture of polymers which contain at least one polar compound of at least one of the metals of the 1st to the 5th main group or of the 1st to 8th subsidiary group of the Periodic System as an extremely finely divided powder, and B) is polyurethane.
    Type: Grant
    Filed: April 17, 2000
    Date of Patent: October 8, 2002
    Assignee: Bayer Aktiengesellschaft
    Inventors: Dieter Wittmann, Thomas Eckel, Bernd Keller, Wolfgang Raschilas
  • Publication number: 20020137821
    Abstract: An oligophosphate of general formula 1
    Type: Application
    Filed: January 4, 2002
    Publication date: September 26, 2002
    Inventors: Andreas Seidel, Kathe Baumann, Thomas Eckel, Michael Zobel, Jorn Stolting, Dieter Wittmann
  • Publication number: 20020137822
    Abstract: An impact-resistant modified, flame-resistant and mineral-reinforced polycarbonate composition is disclosed. The composition has a flow line strength of greater than 6 kJ/m2 measured according to ISO 179/IeU and is preferably reinforced with wollastonite.
    Type: Application
    Filed: January 22, 2002
    Publication date: September 26, 2002
    Inventors: Andreas Seidel, Thomas Eckel, Uwe Peucker, Dieter Wittmann
  • Publication number: 20020132899
    Abstract: A polycarbonate composition containing inorganic material with an anisotropic particle geometry and with an iron content of less than about 100 ppm is disclosed. The composition is suitable for producing molded articles exhibiting improved mechanical properties both at ambient and low temperatures.
    Type: Application
    Filed: January 22, 2002
    Publication date: September 19, 2002
    Inventors: Andreas Seidel, Thomas Eckel, Holger Warth, Dieter Wittmann
  • Publication number: 20020128359
    Abstract: Compositions containing:
    Type: Application
    Filed: December 3, 2001
    Publication date: September 12, 2002
    Inventors: Thomas Eckel, Andreas Seidel, Dieter Wittmann
  • Publication number: 20020123567
    Abstract: The invention relates to thermoplastic copolycarbonate compositions and moulded parts containing the latter having improved stress cracking resistance and thermal stability.
    Type: Application
    Filed: September 24, 2001
    Publication date: September 5, 2002
    Inventors: Holger Warth, Thomas Eckel, Dieter Wittmann, Silke Kratschmer
  • Patent number: 6444735
    Abstract: A flame resistant thermoplastic molding composition is disclosed. The composition contains a mixture of two aromatic polycarbonates having differing solution viscosities, a vinyl(co)polymer made from at least two ethylenically unsaturated monomers, a graft polymer obtainable by graft polymerization of at least two monomers selected from chloroprene, 1,3-butadiene, isoprene, styrene, acrylonitrile, ethylene, propylene, vinyl acetate and (meth)acrylates with 1 to 18 carbon atoms in the alcohol component, a phosphorous compound, a fluorinated polyolefin and an inorganic compound with an average particle size no greater than 200 nm. The inventive composition is additionally characterized in its improved stress cracking resistance.
    Type: Grant
    Filed: February 4, 2000
    Date of Patent: September 3, 2002
    Assignee: Bayer Aktiengesellschaft
    Inventors: Thomas Eckel, Dieter Wittmann, Bernd Keller, Heinrich Alberts
  • Patent number: 6441068
    Abstract: A flame-resistant, reinforced thermoplastic molding composition characterized by its improved properties is disclosed. The composition contains A) a mixture of two aromatic polycarbonate resins that differ one from the other in terms of their relative solution viscosities, B) an optional vinyl (co)polymer containing at least one ethylenically unsaturated monomer, C) a graft polymer, D) a phosphorus compound, E) fluorinated polyolefin, and F) inorganic reinforcing material.
    Type: Grant
    Filed: February 7, 2000
    Date of Patent: August 27, 2002
    Assignee: Bayer Aktiengesellschaft
    Inventors: Thomas Eckel, Dieter Wittmann, Bernd Keller, Heinrich Alberts
  • Publication number: 20020115761
    Abstract: A flame resistant thermoplastic molding composition containing (A) polycarbonate and/or polyester carbonate and (B) a graft polymer impact strength-modifier is disclosed. The composition is characterized in that the ratio Z of the rubber containing portion Ba contained in component B to the rubber free portion K of vinyl(co)polymer in the composition is greater than “1”.
    Type: Application
    Filed: December 3, 2001
    Publication date: August 22, 2002
    Inventors: Thomas Eckel, Andreas Seidel, Bernd Keller, Dieter Wittmann
  • Publication number: 20020115759
    Abstract: A thermoplastic molding composition suitable for producing article having excellent flame proofing and improved stress cracking resistance is disclosed. The composition contains an aromatic polycarbonate and/or polyester carbonate, a toughening agent, an optional thermoplastic (co)polymer and a combination of phosphorus compounds.
    Type: Application
    Filed: December 3, 2001
    Publication date: August 22, 2002
    Inventors: Thomas Eckel, Andreas Seidel
  • Patent number: 6433082
    Abstract: The present invention relates to moulding compositions which are treated with phosphazenes and are based on polycarbonate and graft polymers chosen from the group consisting of silicone rubbers, EP(D)M rubbers and acrylate rubbers as the graft base, and which have an excellent flameproofing and very good mechanical properties, such as resistance to stress cracking or notched impact strength.
    Type: Grant
    Filed: February 8, 2001
    Date of Patent: August 13, 2002
    Assignee: Bayer Aktiengesellschaft
    Inventors: Thomas Eckel, Michael Zobel, Dieter Wittmann
  • Patent number: 6417256
    Abstract: A thermoplastic molding composition containing 1 to 99 parts by weight of aromatic polycarbonate or polyester carbonate and 1 to 99 parts by weight of at least one graft polymer prepared by solution polymerization is disclosed. The graft polymer is characterized in having rubber content of 20 to 50 wt. % and in that the average particle size of its rubber phase is 80 to 600 nm. The composition, which optionally contains additives, flameproofing agents and reinforcing agents, is characterized by its improved mechanical properties.
    Type: Grant
    Filed: March 22, 2000
    Date of Patent: July 9, 2002
    Assignee: Bayer Aktiengesellschaft
    Inventors: Thomas Eckel, Dieter Wittmann, Ralph Ostarek, Richard Weider, Gisbert Michels
  • Patent number: 6414107
    Abstract: A thermoplastic polycarbonate molding composition is described. The thermoplastic composition contains a silicon compound, e.g., silicon dioxide, having an average particle diameter of 0.001 &mgr;m to 10 &mgr;m. The silicon compound is present in the composition in an amount of 0.01 to 30 parts by weight per 100 parts by weight of the thermoplastic polycarbonate. Also describe are shaped articles, e.g., data technology housing components, made from the thermoplastic polycarbonate composition of the present invention.
    Type: Grant
    Filed: June 1, 2001
    Date of Patent: July 2, 2002
    Assignee: Bayer Aktiengesellschaft
    Inventors: Michael Zobel, Thomas Eckel, Dieter Wittmann, Bernd Keller
  • Publication number: 20020072553
    Abstract: Flame-resistant, thermoplastic moulding compositions containing
    Type: Application
    Filed: November 17, 1999
    Publication date: June 13, 2002
    Inventors: THOMAS ECKEL, MICHAEL BODIGER, DIETER WITTMANN, HEINRICH ALBERTS, KLAUS HORN
  • Publication number: 20020058716
    Abstract: Composites of at least two different plastics materials joined directly to one another, wherein
    Type: Application
    Filed: April 17, 2000
    Publication date: May 16, 2002
    Inventors: DIETER WITTMANN, THOMAS ECKEL, BERND KELLER, WOLFGANG RASCHILAS
  • Patent number: 6326423
    Abstract: The present invention relates to polycarbonate-ABS molding compositions containing phosphorus compounds which are group IB, IIB or VIII metal salts of partial phosphoric acid esters which have excellent mechanical properties, in particular excellent notched impact strength, stress cracking behavior and heat resistance.
    Type: Grant
    Filed: July 7, 2000
    Date of Patent: December 4, 2001
    Assignee: Bayer Aktiengesellschaft
    Inventors: Thomas Eckel, Michael Zobel, Dieter Wittmann
  • Patent number: 6320016
    Abstract: X-ray detectable molded articles prepared from polycarbonate resins are disclosed. The articles, preferably toys or medical equipment, are molded of polycarbonate the structure of which contains units derived from iodophenyl.
    Type: Grant
    Filed: December 9, 1999
    Date of Patent: November 20, 2001
    Assignee: Bayer Aktiengesellschaft
    Inventors: Michael Bödiger, Wolfgang Ebert, Heinrich Alberts, Dieter Wittmann, Thomas Eckel