Patents by Inventor Swen Ruck

Swen Ruck 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 producing filler-containing foam slabs
    Publication number: 20070164466
    Abstract: Process for production of foam webs or foam sheets, these webs or sheets being based on a polymer selected from polysulfones, polyetherimides, polyether ketones, and styrene polymers, via extrusion of a melt which comprises the polymer and a blowing agent, and then foaming of this melt, which comprises a process in which the melt also comprises from 1 to 50% by weight, based on the polymer, of a filler selected from A) a fibrous filler A, B) a particulate, non-graphite filler B, and mixtures of these.
    Type: Application
    Filed: February 16, 2005
    Publication date: July 19, 2007
    Inventors: Dietrich Scherzer, Rudiger Bluhm, Franz-Josef Dietzen, Swen Ruck
  • Method for the production of low-bulk density polystyrene foam particles
    Publication number: 20060167123
    Abstract: A process for producing foam beads with low bulk density from thermoplastic polymers, encompassing the stages of a) addition of a blowing agent to a thermoplastic polymer melt, b) cooling and extrusion, through a die, of the polymer melt comprising blowing agent c) cutting of the polymer melt comprising-blowing agent downstream of the die at reduced pressure with foaming to give foam beads where water and a solubilizer are present in the blowing agent, and foam beads obtainable by the process.
    Type: Application
    Filed: August 28, 2003
    Publication date: July 27, 2006
    Applicant: BASF AKTIENGESELLSCHAFT
    Inventors: Franz-Josef Dietzen, Gerd Ehrmann, Klaus Hahn, Swen Ruck
  • Production of foam webs from high-temperature-resistant polysulfones or polyether sulfones
    Patent number: 7045082
    Abstract: The invention relates to a process for producing foam webs by foam extrusion of a mixture of a polysulfone or polyether sulfone and a volatile blowing agent, where the blowing agent is water or a mixture of water with an inert gas or organic liquid, e.g. an alcohol or a ketone.
    Type: Grant
    Filed: December 16, 2002
    Date of Patent: May 16, 2006
    Assignee: BASF Aktiengesellschaft
    Inventors: Franz-Josef Dietzen, Dietrich Scherzer, Joachim Queisser, Swen Rück, Gerd Ehrmann, Wolfgang Kratzmüller
  • Production of foam webs from high-temperature-resistant polysulfones or polyether sulfones
    Publication number: 20040212119
    Abstract: The invention relates to a process for producing foam webs by foam extrusion of a mixture of a polysulfone or polyether sulfone and a volatile blowing agent, where the blowing agent is water or a mixture of water with an inert gas or organic liquid, e.g. an alcohol or a ketone.
    Type: Application
    Filed: December 16, 2002
    Publication date: October 28, 2004
    Inventors: Franz-Josef Dietzen, Dietrich Scherzer, Joachim Queisser, Swen Ruck, Gerd Ehrmann, Wolfgang Kratzmuller
  • Continuous production process of expandable styrene polymer beads
    Patent number: 5905096
    Abstract: A continuous process for preparing bead-form expandable styrene polymers in which the styrene is prepolymerized in bulk to a conversion of 10 to 80%, the prepolymer is dispersed in liquid form in an aqueous phase in the presence of suspension stabilizers, and the polymerization of the prepolymer is completed in an aqueous suspension to a residual styrene content of less than 2000 ppm.
    Type: Grant
    Filed: January 29, 1998
    Date of Patent: May 18, 1999
    Assignee: BASF Aktiengesellschaft
    Inventors: Peter Nikolaus Lay, Swen Ruck, Michael Schiessl, Michael Witt, Hans Dieter Zettler, Michael Baumgartel, Gerhard Dembek, Klaus Hahn, Jan Holoch, Wolfram Husemann, Knut Kaempfer