Patents by Inventor Stefanie Werland

Stefanie Werland 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).

  • Process for preparing ethylamines and monoisopropylamine (MIPA)
    Patent number: 8766009
    Abstract: A process for preparing ethylamines and monoisopropylamine (MIPA), in which bioethanol is reacted with ammonia in the presence of hydrogen and of a heterogeneous catalyst to give ethylamines, said bioethanol having a content of sulfur and/or sulfur compounds of ?0.1 ppm by weight (calculated S), and then isopropanol is reacted with ammonia in the presence of the same catalyst and in the presence of hydrogen to give MIPA.
    Type: Grant
    Filed: November 20, 2012
    Date of Patent: July 1, 2014
    Assignee: BASF SE
    Inventors: Norbert Asprion, Manfred Julius, Oliver Bey, Stefanie Werland, Frank Stein, Matthias Kummer, Wolfgang Mägerlein, Johann-Peter Melder, Kevin Huyghe, Maarten Moors
  • Ethylene urea displaying lasting powder flow
    Patent number: 8303872
    Abstract: The present invention relates to a process for preparing ethylene urea in solid form, in which a water-comprising product melt of ethylene urea is cooled on a breaking-up apparatus and the water content of the solid obtained is from 5 to 15% by weight. Furthermore, the invention relates to ethylene urea as solid prepared by a process according to the invention, wherein the water content of the solid is from 5 to 15% by weight and the solid displays lasting powder flow.
    Type: Grant
    Filed: December 10, 2008
    Date of Patent: November 6, 2012
    Assignee: BASF SE
    Inventors: Henry Szafranski, Stefanie Werland, Peter Raatz, Joachim Simon
  • ETHYLENE UREA DISPLAYING LASTING POWDER FLOW
    Publication number: 20100261015
    Abstract: The present invention relates to a process for preparing ethylene urea in solid form, in which a water-comprising product melt of ethylene urea is cooled on a breaking-up apparatus and the water content of the solid obtained is from 5 to 15% by weight. Furthermore, the invention relates to ethylene urea as solid prepared by a process according to the invention, wherein the water content of the solid is from 5 to 15% by weight and the solid displays lasting powder flow.
    Type: Application
    Filed: December 10, 2008
    Publication date: October 14, 2010
    Applicant: BASF SE
    Inventors: Henry Szafranski, Stefanie Werland, Peter Raatz, Joachim Simon