Patents by Inventor Armin Lange

Armin Lange 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).

  • Polyethyleneimine and polyvinylamine derivatives, aluminum-based substrate materials coated with these derivatives and the use thereof for the production of offset printing plates
    Patent number: 5217813
    Abstract: In novel polyethyleneimine and polyvinylamine derivatives, the polyethyleneimines contain the structural elements Ia and/or Ib ##STR1## and the polyvinylamines contain the structural elements II.sub.a, II.sub.b and II.sub.c ##STR2## where, for the degrees of polymerization n, m and p, n.gtoreq.1, m.gtoreq.0 and p.gtoreq.0, and X.sup.1 is CR.sup.1 R.sup.2 PO.sub.3 R.sup.3 R.sup.4 or CR.sup.1 R.sup.2 SO.sub.3 R.sup.3, X.sup.2 independently of X.sup.1 is hydrogen, CR.sup.1 R.sup.2 PO.sub.3 R.sup.3 R.sup.4 or CR.sup.1 R.sup.2 SO.sub.3 R.sup.3, Y.sup.1 and Y.sup.2 independently of one another are each one or more CHR.sup.1 PO.sub.3 R.sup.3 R.sup.4 or CHR.sup.1 SO.sub.3 R.sup.3 groups or hydrogen, Y.sup.3 and Y.sup.4 independently of one another and of Y.sup.1 and Y.sup.2 are each hydrogen, CHR.sup.1 PO.sub.3 R.sup.3 R.sup.4 or CHR.sup.1 SO.sub.3 R.sup.3, and Z.sup.1 -Z.sup.4 are identical or different inorganic and/or organic radicals, wherein R.sup.1 and R.sup.2 independently of one another are each hydrogen, C.
    Type: Grant
    Filed: December 11, 1991
    Date of Patent: June 8, 1993
    Assignee: BASF Aktiengesellschaft
    Inventors: Joachim Roser, Juergen Mohr, Armin Lange, Knut Oppenlaender, Walter Denzinger, Thomas Loerzer