Patents by Inventor Wolfgang Schattenmann

Wolfgang Schattenmann 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).

  • Alkylidene complexes of ruthenium containing N-heterocyclic carbene ligands; use as highly active, selective catalysts for olefin metathesis
    Patent number: 6635768
    Abstract: The invention relates to a complex of ruthenium of the structural formula I, where X1 and X2 are identical or different and are each an anionic ligand, R1 and R2 are identical or different and can also contain a ring, and R1 and R2 are each hydrogen or/and a hydrocarbon group, the ligand L1 is an N-heterocyclic carbene and the ligand L2 is an uncharged electron donor, in particular an N-heterocyclic carbene or an amine, imine, phosphine, phosphite, stibine, arsine, carbonyl compound, carboxyl compound, nitrile, alcohol, ether, thiol or thioether, where R1, R2, R3 and R4 are hydrogen or/and hydrocarbon groups.
    Type: Grant
    Filed: November 27, 2000
    Date of Patent: October 21, 2003
    Assignee: Degussa AG
    Inventors: Wolfgang Anton Herrmann, Wolfgang Schattenmann, Thomas Weskamp
  • Process for treating organic fibers
    Patent number: 6547981
    Abstract: Organic fibers are treated with aqueous preparations comprising amino-functional organosilicon compounds of the general formula H2N—R1—SiR2O(SiR2O)iSiR2—R1—NH2 where i is an integer from 1 to 1000, R is an identical or different monovalent hydrocarbon radical having 1 to 18 carbon atoms per radical, and R1 is a divalent hydrocarbon radical having 2 to 10 carbon atoms. The treated organic fibers, particularly in the form of textiles, exhibit a soft hand and good rewettability.
    Type: Grant
    Filed: March 26, 2002
    Date of Patent: April 15, 2003
    Assignee: Wacker-Chemie GmbH
    Inventors: Michael Messner, Wolfgang Schattenmann, Renate Minigshofer, Evelyn Richter
  • Organopolysiloxanes having quaternary ammonium groups and processes for the preparation thereof
    Publication number: 20030045666
    Abstract: Organopolysiloxanes bearing quaternary ammonium groups and containing units of the general formula
    Type: Application
    Filed: July 25, 2002
    Publication date: March 6, 2003
    Applicant: Wacker-Chemie GmbH
    Inventors: Wolfgang Schattenmann, Michael Mebner, Renate Minigshofer, Evelyn Richter
  • Process for treating organic fibers
    Publication number: 20020175310
    Abstract: Organic fibers are treated with aqueous preparations comprising amino-functional organosilicon compounds of the general formula
    Type: Application
    Filed: March 26, 2002
    Publication date: November 28, 2002
    Inventors: Michael Messner, Wolfgang Schattenmann, Renate Minigshofer, Evelyn Richter