Patents by Inventor Nicole Fresmann

Nicole Fresmann 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 PRODUCING SOLID POLYURETHANE CURING AGENTS
    Publication number: 20230105553
    Abstract: The present invention relates to a process for producing a solid, internally and externally blocked polyurethane curing agent based on a (cyclo)aliphatic polyisocyanate, in which, in the sequence of steps a) to d), a) i) at least one internally blocked (cyclo)aliphatic polyisocyanate and ii) at least one lactam and/or at least one aliphatic alcohol are dissolved in a solvent to produce a reaction mixture, b) the reaction mixture is heated and reacted, c) the reacted reaction mixture is cooled until product precipitates, and d) liquid solvent and any unreacted dissolved reactants and precipitated product are mechanically separated from one another.
    Type: Application
    Filed: October 5, 2022
    Publication date: April 6, 2023
    Inventors: Emmanouil Spyrou, Andrea Henschke, Elke Gollan, Nicole Fresmann, Jessika Schüller
  • Low monomer 1 : 1 monoadducts of reactive olefinic compounds and diisocyanates using insertable inhibitors
    Patent number: 8841479
    Abstract: The invention relates to low monomer 1:1 monoadducts of reactive olefinic compounds and diisocyanates, to the production and to the use thereof.
    Type: Grant
    Filed: October 22, 2009
    Date of Patent: September 23, 2014
    Assignee: Evonik Degussa GmbH
    Inventors: Emmanouil Spyrou, Stephan Kohlstruk, Elke Gollan, Andrea Henschke, Nicole Fresmann
  • LOW MONOMER 1 : 1 MONOADDUCTS OF REACTIVE OLEFINIC COMPOUNDS AND DIISOCYANATES USING INSERTABLE INHIBITORS
    Publication number: 20110251424
    Abstract: The invention relates to low monomer 1:1 monoadducts of reactive olefinic compounds and diisocyanates, to the production and to the use thereof.
    Type: Application
    Filed: October 22, 2009
    Publication date: October 13, 2011
    Applicant: EVONIK DEGUSSA GMBH
    Inventors: Emmanouil Spyrou, Stephan Kohlstruk, Elke Gollan, Andrea Henschke, Nicole Fresmann
  • Highly Reactive Uretdione Group-Containing Polyurethane Compositions Based on 1,4-Diisocyanato-Dicyclohexyl Methane
    Publication number: 20080139753
    Abstract: The invention relates to polyurethane compositions which contain uretdione groups and are based on 1,4-diisocyanatocyclohexylmethane, particularly for polyurethane powder coating and adhesive compositions which can be cured at a low temperature, to a process for producing them, and to their use.
    Type: Application
    Filed: October 28, 2005
    Publication date: June 12, 2008
    Applicant: Degussa GmbH
    Inventors: Emmanouil Spyrou, Andrea Henschke, Nicole Fresmann