Patents by Inventor Erika Retzlaff

Erika Retzlaff 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).

  • Functionalized ketone-aldehyde condensation resins
    Patent number: 10113025
    Abstract: A functionalized ketone-aldehyde condensation resin is produced by condensing a ketone and an aldehyde in the presence of at least one alcohol or alkoxylate thereof, wherein the alcohol comprises amino alcohols and derivatives thereof, hydroxybutyl vinyl ether, OH-functional acrylates, OH-functional terpenes, OH-functional halogen compounds, hydroxycarboxylic acids, sulphur-containing alcohols, hydroxyl-containing urea derivatives, carbohydrates, siloxanes, OH-functional phosphorus compounds or unsaturated alcohols.
    Type: Grant
    Filed: April 4, 2016
    Date of Patent: October 30, 2018
    Assignee: Evonik Degussa GmbH
    Inventors: Christoph Juergen Duerr, Bettina Burian, Daniel Engelke, Michael Ewald, Tanja Joerres, Erika Retzlaff
  • Dispersing resins for pigment preparations having a low volatile organic content
    Patent number: 9751971
    Abstract: A dispersing resin for conventional solventborne pigment preparations having a low to very low proportion of volatile organic substances is provided. Further provided are solventborne coating materials containing the dispersing resin. Uses include paints, varnishes, adhesives, inks or printing inks, and compositions for coloring of plastics. The pigment preparations produced with these resins are free of yellowing, stable to weathering, of low viscosity and intensely colored.
    Type: Grant
    Filed: February 23, 2015
    Date of Patent: September 5, 2017
    Assignee: Evonik Degussa GmbH
    Inventors: Thomas Veit, Michael Ewald, Daniel Engelke, Bettina Burian, Heiko Alzer, Jan Schwarze, Ellen Reuter, Frank Kleinsteinberg, Katrin Roland, Sandra Roediger, Erika Retzlaff, Sylvia Kroes
  • FUNCTIONALIZED KETONE-ALDEHYDE CONDENSATION RESINS
    Publication number: 20160289366
    Abstract: A functionalized ketone-aldehyde condensation resin is produced by condensing a ketone and an aldehyde in the presence of at least one alcohol or alkoxylate thereof, wherein the alcohol comprises amino alcohols and derivatives thereof, hydroxybutyl vinyl ether, OH-functional acrylates, OH-functional terpenes, OH-functional halogen compounds, hydroxycarboxylic acids, sulphur-containing alcohols, hydroxyl-containing urea derivatives, carbohydrates, siloxanes, OH-functional phosphorus compounds or unsaturated alcohols.
    Type: Application
    Filed: April 4, 2016
    Publication date: October 6, 2016
    Applicant: Evonik Degussa GmbH
    Inventors: Christoph Juergen DUERR, Bettina BURIAN, Daniel ENGELKE, Michael EWALD, Tanja JOERRES, Erika RETZLAFF
  • Liquid, adhesion-promoting additive and process for its preparation
    Patent number: 9221945
    Abstract: A polyester resin, comprising a polyester which comprises as esterified polymer units: at least one of an unsaturated dicarboxylic acid and an unsaturated polycarboxylic acid; and at least one of an alkoxylated diol and an alkoxylated polyol is provided. An adhesion-promoting additive comprising the polyester resin is also provided.
    Type: Grant
    Filed: September 24, 2014
    Date of Patent: December 29, 2015
    Assignee: Evonik Industries AG
    Inventors: Heiko Alzer, Ingrid Heussen, Sascha Herrwerth, Thomas Veit, Michael Ewald, Erika Retzlaff, Tanja Joerres, Annika Siebers
  • DISPERSING RESINS FOR PIGMENT PREPARATIONS HAVING A LOW VOLATILE ORGANIC CONTENT
    Publication number: 20150240020
    Abstract: A dispersing resin for conventional solventborne pigment preparations having a low to very low proportion of volatile organic substances is provided. Further provided are solventborne coating materials containing the dispersing resin. Uses include paints, varnishes, adhesives, inks or printing inks, and compositions for colouring of plastics. The pigment preparations produced with these resins are free of yellowing, stable to weathering, of low viscosity and intensely coloured.
    Type: Application
    Filed: February 23, 2015
    Publication date: August 27, 2015
    Applicant: Evonik Industries AG
    Inventors: Thomas VEIT, Michael Ewald, Daniel Engelke, Bettina Burian, Heiko Alzer, Jan Schwarze, Ellen Reuter, Frank Kleinsteinberg, Katrin Roland, Sandra Roediger, Erika Retzlaff, Sylvia Kroes
  • LIQUID, ADHESION-PROMOTING ADDITIVE AND PROCESS FOR ITS PREPARATION
    Publication number: 20150094419
    Abstract: A polyester resin, comprising a polyester which comprises as esterified polymer units: at least one of an unsaturated dicarboxylic acid and an unsaturated polycarboxylic acid; and at least one of an alkoxylated diol and an alkoxylated polyol is provided.
    Type: Application
    Filed: September 24, 2014
    Publication date: April 2, 2015
    Applicant: Evonik Industries AG
    Inventors: Heiko ALZER, Ingrid HEUSSEN, Sascha HERRWERTH, Thomas VEIT, Michael EWALD, Erika RETZLAFF, Tanja JOERRES, Annika SIEBERS
  • Radiation curable composition consisting of unsaturated amorphous polyesters and reactive dilutant agents
    Patent number: 7687569
    Abstract: The invention provides a radiation-curable adhesion-promoting composition comprising unsaturated amorphous polyesters and reactive diluents and a process for preparing it and also provides for the use of unsaturated amorphous polyesters in reactive diluents as adhesion-promoting additives.
    Type: Grant
    Filed: May 9, 2005
    Date of Patent: March 30, 2010
    Assignee: Evonik Degussa GmbH
    Inventors: Patrick Glöckner, Andreas Wenning, Peter Denkinger, Erika Retzlaff
  • Radiation Curable Composition Consisting of Unsaturated Amorphous Polyesters and Reactive Dilutant Agents
    Publication number: 20080146728
    Abstract: The invention provides a radiation-curable adhesion-promoting composition comprising unsaturated amorphous polyesters and reactive diluents and a process for preparing it and also provides for the use of unsaturated amorphous polyesters in reactive diluents as adhesion-promoting additives.
    Type: Application
    Filed: May 9, 2005
    Publication date: June 19, 2008
    Applicant: DEGUSSA AG
    Inventors: Patrick Glockner, Andreas Wenning, Peter Denkinger, Erika Retzlaff