Patents by Inventor Bastiaan STAAL

Bastiaan STAAL 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).

  • POLYARYLETHERSULFONE COPOLYMERS
    Publication number: 20160075850
    Abstract: The invention relates to a method for preparing polyarylethersulfone-polyalkylene oxide block copolymers (PPC) comprising the polycondensation of a reaction mixture (RG) comprising the components: (A1) at least one aromatic dihalogen compound, (B1) at least one aromatic dihydroxyl compound, (B2) at least one polyalkylene oxide having at least two hydroxyl groups, (C) at least one aprotic polar solvent and (D) at least one metal carbonate, where the reaction mixture (RG) does not comprise any substance which forms an azeotrope with water.
    Type: Application
    Filed: April 30, 2014
    Publication date: March 17, 2016
    Applicant: BASF SE
    Inventors: Martin WEBER, Christian MALETZKO, Thomas WEISS, Joerg ERBES, Bastiaan STAAL