Patents by Inventor David J. Couling

David J. Couling 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).

  • Epoxy resin compositions
    Patent number: 10414854
    Abstract: A process for preparing an aliphatic or cycloaliphatic epoxy resin composition including the steps of: (I) reacting a mixture of the following components: (a) an aliphatic or cycloaliphatic hydroxyl-containing material, (b) an epihalohydrin, (c) a stoichiometric excess of a base compound or basic acting substance, (d) a catalyst, and (e) optionally, a solvent; wherein the reacting step (I) is carried out under reaction conditions sufficient to form a crude aliphatic or cycloaliphatic epoxy resin composition product in the resultant reaction mixture; (II) neutralizing the resultant reaction mixture of step (I) containing the crude aliphatic or cycloaliphatic epoxy resin composition product with a phosphate neutralizing agent sufficient to partially neutralize the base or basic acting substance and to form a neutralized fluid medium containing aliphatic or cycloaliphatic epoxy resin composition product; (III) removing at least a portion of unreacted epihalohydrin from the reaction mixture of step (II); and (IV)
    Type: Grant
    Filed: February 26, 2015
    Date of Patent: September 17, 2019
    Assignee: Blue Cube IP LLC
    Inventors: Robert E. Hefner, Jr., Daryoosh Beigzadeh, David J. Couling, Robert W. Coyle, David A. Carr
  • Method of preparing benzyl 4-amino-3-chloro-5-fluoro-6-(4-chloro-2-fluoro-3-methoxyphenyl)picolinate
    Patent number: 10407391
    Abstract: A method of preparing benzyl 4-amino-3-chloro-5-fluoro-6-(4-chloro-2-fluoro-3-methoxyphenyl)picolinate (I) from benzyl 4,5-difluoro-6-(4-chloro-2-fluoro-3-methoxyphenyl)picolinate (II) is described. The method includes the use of amination and chlorination process steps to provide the compound of Formula I.
    Type: Grant
    Filed: December 6, 2017
    Date of Patent: September 10, 2019
    Assignee: Dow AgroSciences LLC
    Inventors: Jason S. Fisk, David J. Couling, Abraham D. Schuitman, Megan E. Donaldson, Brian Murdoch, Ronald B. Leng
  • METHOD OF PREPARING BENZYL 4-AMINO-3-CHLORO-5-FLUORO-6-(4-CHLORO-2-FLUORO-3-METHOXYPHENYL)PICOLINATE
    Publication number: 20180162814
    Abstract: A method of preparing benzyl 4-amino-3-chloro-5-fluoro-6-(4-chloro-2-fluoro-3-methoxyphenyl)picolinate (I) from benzyl 4,5-difluoro-6-(4-chloro-2-fluoro-3-methoxyphenyl)picolinate (II) is described. The method includes the use of amination and chlorination process steps to provide the compound of Formula I.
    Type: Application
    Filed: December 6, 2017
    Publication date: June 14, 2018
    Applicant: Dow AgroSciences LLC
    Inventors: Jason S. Fisk, David J. Couling, Abraham D. Schuitman, Megan E. Donaldson, Brian Murdoch, Ronald B. Leng
  • EPOXY RESIN COMPOSITIONS
    Publication number: 20170088663
    Abstract: A process for preparing an aliphatic or cycloaliphatic epoxy resin composition including the steps of: (I) reacting a mixture of the following components: (a) an aliphatic or cycloaliphatic hydroxyl-containing material, (b) an epihalohydrin, (c) a stoichiometric excess of a base compound or basic acting substance, (d) a catalyst, and (e) optionally, a solvent; wherein the reacting step (I) is carried out under reaction conditions sufficient to form a crude aliphatic or cycloaliphatic epoxy resin composition product in the resultant reaction mixture; (II) neutralizing the resultant reaction mixture of step (I) containing the crude aliphatic or cycloaliphatic epoxy resin composition product with a phosphate neutralizing agent sufficient to partially neutralize the base or basic acting substance and to form a neutralized fluid medium containing aliphatic or cycloaliphatic epoxy resin composition product; (III) removing at least a portion of unreacted epihalohydrin from the reaction mixture of step (II); and (IV)
    Type: Application
    Filed: February 26, 2015
    Publication date: March 30, 2017
    Inventors: Robert E. Hefner, Daryoosh Beigzadeh, David J. Couling, Robert W. Coyle, David A. Carr