Patents by Inventor Axel Stieneker

Axel Stieneker 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: 10407530
    Abstract: The invention relates to a method for preparing vinyl chloride graft copolymers by emulsion polymerization and to a method for preparing blends of such graft copolymers. The invention also relates to transparent molded articles prepared by using the graft copolymers according to the invention and their blends, respectively.
    Type: Grant
    Filed: May 30, 2018
    Date of Patent: September 10, 2019
    Assignee: VESTOLIT GmbH & Co. KG
    Inventors: Davide Brizzolara, Ingo Fischer, Jan-Stephan Gehrke, Dieter Polte, Axel Stieneker, Harald Sturm
  • Patent number: 10407529
    Abstract: The invention relates to a method for producing vinyl chloride graft copolymers by emulsion polymerization and to a method for producing mixtures of said graft copolymers. The invention also relates to transparent articles produced using the claimed graft copolymers or mixtures thereof.
    Type: Grant
    Filed: May 30, 2018
    Date of Patent: September 10, 2019
    Assignee: VESTOLIT GmbH & Co. KG
    Inventors: Davide Brizzolara, Ingo Fischer, Jan-Stephan Gehrke, Dieter Polte, Axel Stieneker, Harald Sturm
  • Patent number: 10125208
    Abstract: The invention relates to a method for preparing vinyl chloride graft copolymers by emulsion polymerization and to a method for preparing blends of such graft copolymers. The invention also relates to transparent molded articles prepared by using the graft copolymers according to the invention and their blends, respectively.
    Type: Grant
    Filed: February 11, 2013
    Date of Patent: November 13, 2018
    Assignee: VESTOLIT GmbH & Co. KG
    Inventors: Davide Brizzolara, Ingo Fischer, Jan-Stephan Gehrke, Dieter Polte, Axel Stieneker, Harald Sturm
  • Publication number: 20180273667
    Abstract: The invention relates to a method for preparing vinyl chloride graft copolymers by emulsion polymerization and to a method for preparing blends of such graft copolymers. The invention also relates to transparent molded articles prepared by using the graft copolymers according to the invention and their blends, respectively.
    Type: Application
    Filed: May 30, 2018
    Publication date: September 27, 2018
    Inventors: Davide Brizzolara, Ingo Fischer, Jan-Stephan Gehrke, Dieter Polte, Axel Stieneker, Harald Sturm
  • Publication number: 20180273666
    Abstract: The invention relates to a method for producing vinyl chloride graft copolymers by emulsion polymerization and to a method for producing mixtures of said graft copolymers. The invention also relates to transparent articles produced using the claimed graft copolymers or mixtures thereof.
    Type: Application
    Filed: May 30, 2018
    Publication date: September 27, 2018
    Inventors: Davide Brizzolara, Ingo Fischer, Jan-Stephan Gehrke, Dieter Polte, Axel Stieneker, Harald Sturm
  • Patent number: 9957385
    Abstract: The invention relates to blends of vinyl chloride graft copolymers as well as to a method for preparing such vinyl chloride graft copolymers and their blends. The invention also relates to molded articles manufactured by using the blends according to the invention.
    Type: Grant
    Filed: February 11, 2013
    Date of Patent: May 1, 2018
    Assignee: VESTOLIT GmbH & Co. KG
    Inventors: Davide Brizzolara, Ingo Fischer, Jan-Stephan Gehrke, Dieter Polte, Axel Stieneker, Harald Sturm
  • Publication number: 20160075870
    Abstract: The invention relates to blends of vinyl chloride graft copolymers as well as to a method for preparing such vinyl chloride graft copolymers and their blends. The invention also relates to molded articles manufactured by using the blends according to the invention.
    Type: Application
    Filed: February 11, 2013
    Publication date: March 17, 2016
    Inventors: Davide Brizzolara, Ingo Fischer, Jan-Stephan Gehrke, Dieter Polte, Axel Stieneker, Harald Sturm
  • Publication number: 20160075812
    Abstract: The invention relates to a method for preparing vinyl chloride graft copolymers by emulsion polymerization and to a method for preparing blends of such graft copolymers. The invention also relates to transparent molded articles prepared by using the graft copolymers according to the invention and their blends, respectively.
    Type: Application
    Filed: February 11, 2013
    Publication date: March 17, 2016
    Inventors: Davide Brizzolara, Ingo Fischer, Jan-Stephan Gehrke, Dieter Polte, Axel Stieneker, Harald Sturm
  • Publication number: 20160075811
    Abstract: The invention relates to a method for producing vinyl chloride graft copolymers by emulsion polymerization and to a method for producing mixtures of said graft copolymers. The invention also relates to transparent molded bodies produced using the claimed graft copolymers or mixtures thereof.
    Type: Application
    Filed: February 11, 2013
    Publication date: March 17, 2016
    Inventors: Davide Brizzolara, Ingo Fischer, Jan-Stephan Gehrke, Dieter Polte, Axel Stieneker, Harald Sturm
  • Publication number: 20090105431
    Abstract: The present invention relates to a single-stage batch process for preparation of pastable polymers, in particular of vinyl chloride homo- and copolymers, by the microsuspension process, where these in a blend with plasticizers give PVC pastes, also termed plastisols, with very low viscosities and with very low emulsifier contents.
    Type: Application
    Filed: February 17, 2006
    Publication date: April 23, 2009
    Applicant: VESTOLIT GMBH & CO. KG
    Inventors: Heinz Bankholt, Jan-Stephan Gehrke, Kurt Muller, Axel Stieneker, Michael Trager
  • Patent number: 6316550
    Abstract: One embodiment of the present invention provides a process, which includes: graft polymerizing a vinyl chloride monomer in suspension in the presence of a core-shell impact modifier; wherein the core-shell impact modifier includes: a core including polyvinyl chloride or vinyl chloride copolymers; and a shell including crosslinked alkyl (meth)acrylate homo- or copolymers. Another embodiment of the present invention provides a thermoplastic polyvinyl chloride molding composition modified with an elastomer-containing core-shell modifier, prepared by a process, which includes graft polymerizing a vinyl chloride monomer in suspension in the presence of a core-shell impact modifier; wherein the core-shell impact modifier includes a core including polyvinyl chloride or vinyl chloride copolymers; and a shell including crosslinked alkyl (meth)acrylate homo- or copolymers. Another embodiment of the present invention provides a plastic profile, which includes the above-noted composition.
    Type: Grant
    Filed: December 7, 2000
    Date of Patent: November 13, 2001
    Assignee: Vestolit GmbH & Co. KG
    Inventors: Axel Stieneker, Radu Bordeianu, Thomas Neu, Harald Sturm, Wilhelm Friedrich Schmitt
  • Publication number: 20010004658
    Abstract: One embodiment of the present invention provides a process, which includes:
    Type: Application
    Filed: December 7, 2000
    Publication date: June 21, 2001
    Inventors: Axel Stieneker, Radu Bordeianu, Thomas Neu, Harald Sturm, Wilhelm Friedrich Schmitt
  • Patent number: 6160056
    Abstract: A process for preparing molding materials having anticoagulant properties is described. Hydrophobic monomers are subjected to free-radical copolymerization with hydrophilic monomers having biospecifically active functions to produce the molding material. The molding material may then be shaped into articles which also have anticoagulant properties. These articles are extremely useful in, for example, medical applications in contact with a patient's biological fluid.
    Type: Grant
    Filed: March 2, 1998
    Date of Patent: December 12, 2000
    Assignee: Vestolit GmbH
    Inventors: Marcel Jozefowicz, Veronique Migonney, Heinz Hermann Meyer, Thomas Neu, Axel Stieneker, Christine Anders, Peter Ottersbach