Patents by Inventor Iris Rau

Iris Rau 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: 6921746
    Abstract: Multifunctional polymers containing polymerized units of (a) ?-Acyloxyacrylonitrile, ?-haloacrylic acid, ?-acyloxyacrylic ester and/or ?-hydroxyacrylic acid, (b) monoethylenically unsaturated carboxylic acids, (c) vinyl esters of saturated aliphatic monocarboxylic acids and/or vinyl alcohol and optionally (d) other monoethylenically unsaturated monomers copolymerizable with said monomers (a) to (c) and optionally (e) crosslinkers containing at least two ethylenically unsaturated double bonds and having a K value of at least 7 (determined after H. Fikentscher in acetone at 25° C.
    Type: Grant
    Filed: April 10, 2001
    Date of Patent: July 26, 2005
    Assignee: BASF Aktiengesellschaft
    Inventors: Iris Rau, Johannes Perner, Christian Ott, Richard Baur
  • Publication number: 20040115429
    Abstract: The present invention relates to a pulverulent formaldehyde-free binder composition containing
    Type: Application
    Filed: December 2, 2003
    Publication date: June 17, 2004
    Applicant: BASF Aktiengesellschaft
    Inventors: Kathrin Michl, Matthias Gerst, Matthias Laubender, Iris Rau, Bernd Reck
  • Publication number: 20030236178
    Abstract: Multifunctional polymers containing polymerized units of
    Type: Application
    Filed: October 4, 2002
    Publication date: December 25, 2003
    Inventors: Iris Rau, Johannes Perner, Christian Ott, Richard Baur
  • Patent number: 5773541
    Abstract: A process for preparing copolymers of vinyl esters and monoethylenically unsaturated carboxylic acids by free-radical copolymerization of(a) 20 to 80 mol % of vinyl esters of aliphatic monocarboxylic acids having at least 2 carbon atoms and(b) 80-20 mol % of monoethylenically unsaturated carboxylic acids, with or without(c) 0-30 mol % of other copolymerizable monoethylenically unsaturated monomers and/or(d) 0-10 mol % of monomers which contain at least two non-conjugated ethylenic double bonds in the molecule,in the presence of at least one sulfur, phosphorus and/or nitrogen compound with a reducing action and of 0.05-30% by weight, based on the monomers, of at least one surface-active agent in aqueous medium in the presence of initiators and in the presence or absence of regulators, and the use of the copolymers or of the copolymers which are obtainable therefrom by hydrolysis and/or oxidation and have vinyl alcohol units as additive to detergents and cleaners.
    Type: Grant
    Filed: August 21, 1996
    Date of Patent: June 30, 1998
    Assignee: BASF Aktiengesellschaft
    Inventors: Dieter Boeckh, Axel Kistenmacher, Walter Denzinger, Iris Rau, Angelika Funhoff, Richard Baur, Alexander Kud, Volker Schwendemann