Patents by Inventor Sebastian WETZEL

Sebastian WETZEL 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).

  • Polysiloxane-polycarbonate block cocondensates
    Patent number: 9845379
    Abstract: The present invention relates to polysiloxane-polycarbonate block cocondensates comprising particular rearrangement structures and having improved rheological properties and melt stability as well as to mouldings and extrudates made from these polysiloxane-polycarbonate block cocondensates.
    Type: Grant
    Filed: October 6, 2014
    Date of Patent: December 19, 2017
    Assignee: Covestro Deutschland AG
    Inventors: Alexander Meyer, Klaus Horn, Thomas Pfingst, Sebastian Wetzel
  • Process for preparing polysiloxane-polycarbonate block cocondensates
    Patent number: 9845378
    Abstract: The present invention relates to a process for preparing polysiloxane-polycarbonate block cocondensates proceeding from specific polycarbonates and hydroxyaryl-terminated polysiloxanes.
    Type: Grant
    Filed: October 6, 2014
    Date of Patent: December 19, 2017
    Assignee: Covestro Deutschland AG
    Inventors: Alexander Meyer, Klaus Horn, Thomas Pfingst, Sebastian Wetzel
  • Process for preparing polysiloxane-polycarbonate block cocondensates using a salt of a weak acid
    Patent number: 9828463
    Abstract: The present invention relates to a process for preparing polysiloxane-polycarbonate block cocondensates proceeding from specific polycarbonates and hydroxyaryl-terminated polysiloxanes in presence of a salt of a weak acid.
    Type: Grant
    Filed: October 6, 2014
    Date of Patent: November 28, 2017
    Assignee: Covestro Deutschland AG
    Inventors: Alexander Meyer, Klaus Horn, Thomas Pfingst, Sebastian Wetzel
  • PROCESS FOR PREPARING POLYSILOXANE-POLYCARBONATE BLOCK COCONDENSATES
    Publication number: 20160244558
    Abstract: The present invention relates to a process for preparing polysiloxane-polycarbonate block cocondensates proceeding from specific polycarbonates and hydroxyaryl-terminated polysiloxanes.
    Type: Application
    Filed: October 6, 2014
    Publication date: August 25, 2016
    Inventors: Alexander Meyer, Klaus HORN, Thomas PFINGST, Sebastian WETZEL
  • PROCESS FOR PREPARING POLYSILOXANE-POLYCARBONATE BLOCK COCONDENSATES USING A SALT OF A WEAK ACID
    Publication number: 20160244561
    Abstract: The present invention relates to a process for preparing polysiloxane-polycarbonate block cocondensates proceeding from specific polycarbonates and hydroxyaryl-terminated polysiloxanes in presence of a salt of a weak acid.
    Type: Application
    Filed: October 6, 2014
    Publication date: August 25, 2016
    Inventors: Alexander MEYER, Klaus HORN, Thomas PFINGST, Sebastian WETZEL
  • POLYSILOXANE-POLYCARBONATE BLOCK COCONDENSATES
    Publication number: 20160244560
    Abstract: The present invention relates to polysiloxane-polycarbonate block cocondensates comprising particular rearrangement structures and having improved rheological properties and melt stability as well as to mouldings and extrudates made from these polysiloxane-polycarbonate block cocondensates.
    Type: Application
    Filed: October 6, 2014
    Publication date: August 25, 2016
    Applicant: Covestro Deutschland AG
    Inventors: Alexander Meyer, Klaus HORN, Thomas PFINGST, Sebastian WETZEL