Patents by Inventor Andrew J. Muehlberg

Andrew J. Muehlberg 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).

  • Water dispersible epoxy urethane compounds and coating compositions
    Patent number: 9676895
    Abstract: The invention relates to novel aqueous coating compositions containing epoxy urethane (glycidyl carbamate) functional resin. An aqueous coating composition comprises a polyfunctional oligomer having at least two epoxy urethane functional groups and a polyalkylene oxide chain, an optional surfactant, and water. The aqueous coating compositions of the invention can be dispersed in water with or without added surfactants to form a dispersion containing no volatile organic solvent. The invention provides a method for making aqueous coating compositions containing epoxy urethane functional resin as well. Water-dispersible epoxy urethane compounds of the aqueous coating compositions are also provided.
    Type: Grant
    Filed: July 20, 2010
    Date of Patent: June 13, 2017
    Assignee: NDSU RESEARCH FOUNDATION
    Inventors: Umesh D. Harkal, Andrew J. Muehlberg, Peter A. Edwards, Dean C. Webster
  • LINEAR GLYCIDYL CARBAMATE (GC) RESINS FOR HIGHLY FLEXIBLE COATINGS
    Publication number: 20150099128
    Abstract: This invention relates to coating compositions comprising a linear glycidyl carbamate (GC) resin and a curing agent. The linear GC-resins were synthesized using linear and cycloaliphatic diisocyanates and a combination of diols and optional triols with glycidol. The combination of linear diisocyanates and diols introduces a more linear structure in the GC-resin compositions.
    Type: Application
    Filed: April 18, 2013
    Publication date: April 9, 2015
    Inventors: Umesh D. Harkal, Andrew J. Muehlberg, Dean C. Webster
  • WATER DISPERSIBLE EPOXY URETHANE COMPOUNDS AND COATING COMPOSITIONS
    Publication number: 20110263753
    Abstract: The invention relates to novel aqueous coating compositions containing epoxy urethane (glycidyl carbamate) functional resin. An aqueous coating composition comprises a polyfunctional oligomer having at least two epoxy urethane functional groups and a polyalkylene oxide chain, an optional surfactant, and water. The aqueous coating compositions of the invention can be dispersed in water with or without added surfactants to form a dispersion containing no volatile organic solvent. The invention provides a method for making aqueous coating compositions containing epoxy urethane functional resin as well. Water-dispersible epoxy urethane compounds of the aqueous coating compositions are also provided.
    Type: Application
    Filed: July 20, 2010
    Publication date: October 27, 2011
    Inventors: Umesh D. Harkal, Andrew J. Muehlberg, Peter A. Edwards, Dean C. Webster