Patents by Inventor Bernd Jansen

Bernd Jansen 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).

  • Method for Making Molded Polycarbonate Articles with Improved Color
    Publication number: 20080004407
    Abstract: A method for preparing a molded article includes the steps of (a) obtaining a polycarbonate resin and (b) molding the polycarbonate resin. The polycarbonate resin is made by a transesterification reaction using an activated diaryl carbonate such that the polycarbonate is susceptible to the formation of internal ester linkages (IEL). The method occurs with the proviso that the polycarbonate resin, the molding conditions or both are selected to control the amount of IEL formed during the molding process to a level of less than 0.4 mol %.
    Type: Application
    Filed: March 20, 2007
    Publication date: January 3, 2008
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Sjef Berndsen, Hans-Peter Brack, Bernd Jansen, Jan Henk Kamps, Edward Kung, Daniel Lowery, Patrick Joseph McCloskey, Paul Michael Smigelski, Dennis Willemse
  • Abrasion-resistant fluoropolymer mixtures
    Patent number: 5864095
    Abstract: An abrasion-resistant fluoropolymer mixture comprising(A) from 75 to 99% by weight of a fluorocarbon polymer(B) from 1 to 25% by weight of an oxidized polyarylene sulfide and, based on the sum (A)+(B),(C) from 0 to 15% by weight of a filler,is used for the production of feed pipes for Bowden cables which are pressure-resistant and abrasion-resistant.
    Type: Grant
    Filed: December 11, 1997
    Date of Patent: January 26, 1999
    Assignee: Ticona GmbH
    Inventors: Helmut Scheckenbach, Andreas Schleicher, Jurgen Kulpe, Wolfgang Neumann, Bernd Jansen
  • Abrasion-resistant fluoropolymer mixtures
    Patent number: 5750221
    Abstract: An abrasion-resistant fluoropolymer mixture comprising(A) from 75 to 99% by weight of a fluorocarbon polymer(B) from 1 to 25% by weight of an oxidized polyarylene sulfide and, based on the sum (A)+(B),(C) from 0 to 15% by weight of a filler,is used for the production of feed pipes for Bowden cables which are pressure-resistant and abrasion-resistant.
    Type: Grant
    Filed: March 26, 1997
    Date of Patent: May 12, 1998
    Assignee: Hoechst AG
    Inventors: Helmut Scheckenbach, Andreas Schleicher, Jurgen Kulpe, Wolfgang Neumann, Bernd Jansen
  • Mixtures of fluoropolymers and oxidized polyarylene sulfides
    Patent number: 5708089
    Abstract: Mixtures of fluoropolymers and oxidized polyarylene sulfidesA polymer mixture ofA) at least one fluoropolymer in a proportion of from 50 to 99% by weight andB) at least one polyarylene sulfone or polyarylene compound containing at least two of the bridges --S--, --SO-- and --SO.sub.2 -- or a mixture of the two in a proportion of from 1 to 50% by weight,where the sum of components A) and B) is always 100% by weight.This mixture is used for the production of sliding bearings or gasket materials having a reduced tendency to creep and reduced abrasion.
    Type: Grant
    Filed: March 22, 1996
    Date of Patent: January 13, 1998
    Assignee: Hoecht AG
    Inventors: Helmut Scheckenbach, Andreas Schleicher, Jurgen Kulpe, Bernd Jansen