Patents by Inventor John D. Gummere

John D. Gummere 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 making tertiary aminoalcohol compounds
    Patent number: 9663443
    Abstract: A process for making a tertiary aminoalcohol compound is disclosed. The process comprises using an excess amount of a carbonyl compound in a condensation step between the carbonyl compound and a nitroalkane in the presence of a catalytic amount of a tertiary aminoalcohol compound, and conducting a hydrogenation/alkylation step to produce the tertiary aminoalcohol. The tertiary aminoalcohol compound used to catalyze the condensation step is preferably the same tertiary aminoalcohol compound produced in the hydrogenation/alkylation step. The process uses fewer steps than conventional processes.
    Type: Grant
    Filed: July 16, 2012
    Date of Patent: May 30, 2017
    Assignee: ANGUS CHEMICAL COMPANY
    Inventors: David W. Moore, Christian Spieker, John D. Gummere
  • Process and apparatus for production and filtration of aminoalcohols using a continuous stirred tank slurry reactor
    Patent number: 9211518
    Abstract: Disclosed are processes and apparatuses for producing a reaction product and enabling the reaction product to be removed from a reactor operating at an elevated pressure, while simultaneously maintaining the gas pressure and retaining the catalyst inside the apparatus.
    Type: Grant
    Filed: June 8, 2012
    Date of Patent: December 15, 2015
    Assignee: ANGUS CHEMICAL COMPANY
    Inventors: Michael D. Major, John D. Gummere
  • PROCESS FOR MAKING TERTIARY AMINOALCOHOL COMPOUNDS
    Publication number: 20140145108
    Abstract: A process for making a tertiary aminoalcohol compound is disclosed. The process comprises using an excess amount of a carbonyl compound in a condensation step between the carbonyl compound and a nitroalkane in the presence of a catalytic amount of a tertiary aminoalcohol compound, and conducting a hydrogenation/alkylation step to produce the tertiary aminoalcohol. The tertiary aminoalcohol compound used to catalyze the condensation step is preferably the same tertiary aminoalcohol compound produced in the hydrogenation/alkylation step. The process uses fewer steps than conventional processes.
    Type: Application
    Filed: July 16, 2012
    Publication date: May 29, 2014
    Applicant: ANGUS CHEMIE GMBH
    Inventors: David W. Moore, Christian Spieker, John D. Gummere
  • Process and Apparatus For Production And Filtration Of Aminoalcohols Using A Continuous Stirred Tank Slurry Reactor
    Publication number: 20140121413
    Abstract: Disclosed are processes and apparatuses for producing a reaction product and enabling the reaction product to be removed from a reactor operating at an elevated pressure, while simultaneously maintaining the gas pressure and retaining the catalyst inside the apparatus.
    Type: Application
    Filed: June 8, 2012
    Publication date: May 1, 2014
    Inventors: Michael D. Major, John D. Gummere
  • Method for eliminating color forming impurities from nitro compounds
    Patent number: 8207382
    Abstract: A method for stabilizing nitro compounds against discoloration. The method comprises reacting nitro compounds containing color-forming impurities with nitric acid, neutralizing and washing the product, and distilling therefrom purified nitro compounds.
    Type: Grant
    Filed: April 8, 2009
    Date of Patent: June 26, 2012
    Inventors: Daniel M. Trauth, Edward L. Little, Richard L. James, John D. Gummere, Morteza Mokhtarzadeh, Li Wang
  • METHOD FOR ELIMINATING COLOR FORMING IMPURITIES FROM NITRO COMPOUNDS
    Publication number: 20110105806
    Abstract: A method for stabilizing nitro compounds against discoloration. The method comprises reacting nitro compounds containing color-forming impurities with nitric acid, neutralizing and washing the product, and distilling therefrom purified nitro compounds.
    Type: Application
    Filed: April 8, 2009
    Publication date: May 5, 2011
    Inventors: Daniel M. Trauth, Edward L. Little, Richard L. James, John D. Gummere, Morteza Mokhtarzadeh, Li Wang