Patents by Inventor Stephen Böhmer

Stephen Böhmer 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).

  • Process and device for the production of elastomer-modified thermoplastics
    Patent number: 7368061
    Abstract: A continuous process for the production of an elastomer-modified thermoplastic is disclosed. The process entails (i) obtaining graft elastomer (D) having residual moisture content of 1 to 50 wt. %, particularly 5 to 50 wt. %, particularly preferably 10 to 40 wt. %, (ii) introducing (D) and thermoplastic resin (B) through an inlet to a reactor operating under conditions calculated to melt (D) and (B) and to remove organic volatile components C) to produce a molten blend, the reactor being equipped with a plurality of kneading bars, that convey a portion of the molten blend towards the reactor inlet.
    Type: Grant
    Filed: April 16, 2004
    Date of Patent: May 6, 2008
    Assignee: Lanxess Deutschland GmbH
    Inventors: Alfred Eitel, Haakan Jonsson, Ulrich Liesenfelder, Stefan Moss, Ricarda Nothelle, Andreas Frankenau, Stephen Böhmer
  • Process and device for the production of elastomer-modified thermoplastics
    Publication number: 20050014897
    Abstract: A continuous process for the production of an elastomer-modified thermoplastic is disclosed. The process entails (i) obtaining graft elastomer (D) having residual moisture content of 1 to 50 wt. %, particularly 5 to 50 wt. %, particularly preferably 10 to 40 wt. %, (ii) introducing (D) and thermoplastic resin (B) through an inlet to a reactor operating under conditions calculated to melt (D) and (B) and to remove organic volatile components C) to produce a molten blend, the reactor being equipped with a plurality of kneading bars, that convey a portion of the molten blend towards the reactor inlet.
    Type: Application
    Filed: April 16, 2004
    Publication date: January 20, 2005
    Inventors: Alfred Eitel, Haakan Jonsson, Ulrich Liesenfelder, Stefan Moss, Ricarda Nothelle, Andreas Frankenau, Stephen Bohmer