Patents by Inventor Brigitte Mess

Brigitte Mess 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).

  • NEW METHOD FOR RECYCLING OF POLYURETHANE
    Publication number: 20250011565
    Abstract: A new method for recycling polyurethane, in particular polyurethane foam via solvolysis can be performed. The new method includes a very efficient pre-treatment method of the polyurethane, wherein it is converted into a polyurethane dispersion. The method also includes providing the polyurethane, preparing a dispersion, and solvolyzing the dispersion. The polyurethane has an average particle size of 0.1 to 12 mm.
    Type: Application
    Filed: October 28, 2022
    Publication date: January 9, 2025
    Applicant: Evonik Operations GmbH
    Inventors: Georg Borchers, Hubert Müller, Jörg Röder, Natalia Hinrichs-Tontrup, Brigitte Mess, Malte Fischer, Marina Lazar, Andree Blesgen, Jens Hildebrand
  • Method for the epoxidation of an olefin with hydrogen peroxide
    Patent number: 10087158
    Abstract: Epoxidation of an olefin is carried out by continuously reacting the olefin with hydrogen peroxide in the presence of a water soluble epoxidation catalyst, comprising a manganese complex, in a reaction mixture comprising an aqueous liquid phase and an organic liquid phase using a loop reactor with mixing of the liquid phases, and during the reaction the concentration of hydrogen peroxide in the aqueous liquid phase is maintained at less than 1.0% by weight.
    Type: Grant
    Filed: February 3, 2016
    Date of Patent: October 2, 2018
    Assignee: EVONIK DEGUSSA GMBH
    Inventors: Jürgen Stock, Uwe Breitenbach, Sebastian Imm, Jürgen Neuroth, Brigitte Mess, Matthias Pascaly
  • METHOD FOR THE EPOXIDATION OF AN OLEFIN WITH HYDROGEN PEROXIDE
    Publication number: 20180030011
    Abstract: Epoxidation of an olefin is carried out by continuously reacting the olefin with hydrogen peroxide in the presence of a water soluble epoxidation catalyst, comprising a manganese complex, in a reaction mixture comprising an aqueous liquid phase and an organic liquid phase using a loop reactor with mixing of the liquid phases, and during the reaction the concentration of hydrogen peroxide in the aqueous liquid phase is maintained at less than 1.0% by weight.
    Type: Application
    Filed: February 3, 2016
    Publication date: February 1, 2018
    Applicant: Evonik Degussa GmbH
    Inventors: Jüergen STOCK, Uwe BREITENBACH, Sebastian IMM, Jürgen NEUROTH, Brigitte MESS, Matthias PASCALY
  • Process for preparing alkoxypolyoxyalkylene (meth) acrylates
    Patent number: 7828271
    Abstract: Process for preparing an alkoxypolyoxyalkylene (meth)acrylate in which a) a metal alkoxide MetOR10 is initially charged, b) an alkylene oxide of the formula (IV) is added and reacted with the metal alkoxide and c) (meth)acrylic anhydride is added directly and reacted with the reaction product from step b). Appropriately, in step c), a stabilizer mixture is added which comprises, for example, the following components I. at least one compound of the formula (I) II. at least one compound of the formula (IIa or IIb) or of the formula (IV) III.
    Type: Grant
    Filed: January 30, 2007
    Date of Patent: November 9, 2010
    Assignee: Evonik Roehm GmbH
    Inventors: Uwe-Martin Wiesler, Joachim Knebel, Brigitte Mess
  • Process for Preparing Alkoxypolyoxyalkylene (Meth) Acrylates
    Publication number: 20090001322
    Abstract: Process for preparing an alkoxypolyoxyalkylene (meth)acrylate in which a) a metal alkoxide MetOR10 is initially charged, b) an alkylene oxide of the formula (IV) is added and reacted with the metal alkoxide and c) (meth)acrylic anhydride is added directly and reacted with the reaction product from step b). Appropriately, in step c) , a stabilizer mixture is added which comprises, for example, the following components I. at least one compound of the formula (I) II. at least one compound of the formula (IIa or IIb) or of the formula (IV) III.
    Type: Application
    Filed: January 30, 2007
    Publication date: January 1, 2009
    Applicant: Evonik Roehm GmbH
    Inventors: Uwe-Martin Wiesler, Joachim Knebel, Brigitte Mess