Patents by Inventor Ellen Frommer

Ellen Frommer 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).

  • Crosslinked polyurethanes
    Publication number: 20050148753
    Abstract: The invention relates to a crosslinked polyurethane comprising A) at least one polytetrahydrofuran of the formula B) at least one compound which contains more than 2 active hydrogen atoms per molecule C) at least one compound which contains at least 2 active hydrogen atoms per molecule and at least one ionogenic and/or ionic group per molecule, where the groups may be anionogenic, anionic, cationogenic or cationic D) at least one diisocyanate E) optionally a compound different from B) and C) which contains at least 2 active hydrogen atoms and has a molecular weight of from 60 to 5000 or the salts thereof.
    Type: Application
    Filed: April 2, 2003
    Publication date: July 7, 2005
    Applicant: BASF Aktiengesellschaft
    Inventors: Son Nguyen-Kim, Ellen Frommer