Patents by Inventor Mark E. Jason

Mark E. Jason 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).

  • Functional fluid compositions containing epoxide acid scavengers
    Patent number: 7018559
    Abstract: A phosphate ester-based functional fluid composition that generates reduced levels of carboxylic acid during use by incorporating at least one acid scavenger selected from the epoxides of the invention. The phosphate ester-based functional fluids are particularly useful as hydraulic fluids.
    Type: Grant
    Filed: May 8, 2001
    Date of Patent: March 28, 2006
    Assignee: Solutia Inc.
    Inventors: Jingen Zhang, Mark E. Jason, Terry C. Wolfe
  • Functional fluid compositions containing epoxide acid scavengers
    Publication number: 20020033478
    Abstract: A phosphate ester-based functional fluid composition that generates reduced levels of carboxylic acid during use by incorporating at least one acid scavenger selected from the epoxides of the invention. The phosphate ester-based functional fluids are particularly useful as hydraulic fluids.
    Type: Application
    Filed: May 8, 2001
    Publication date: March 21, 2002
    Inventors: Jingen Zhang, Mark E. Jason, Terry C. Wolfe
  • Microencapsulation process by coacervation
    Patent number: 5540927
    Abstract: There is disclosed a process for microencapsulation of materials by means of complex coacervation employeing gelatin and polyaspartic acid. Material to be encapsulated is emulsified in an aqueous solution of gelatin. Polyaspartic acid or a salt thereof is employed to provide a counter ion to the gelatin which, when induced to precipitate from solution by cooling and/or pH change forms a wall around the material. The wall is hardened by crosslinking to form a stable microcapsule containing the material.
    Type: Grant
    Filed: April 12, 1995
    Date of Patent: July 30, 1996
    Assignee: Monsanto Company
    Inventors: Mark E. Jason, Dennis J. Kalota
  • Preparation of anhydropolyamino acids
    Patent number: 5470942
    Abstract: There is disclosed a process for preparing polyaspartic acid by thermal condensation of L-aspartic acid in a novel catalyst which shortens the reaction time and increases the molecular weight of the polymer. The novel catalyst is a catalytically effective methylenephosphonic acid. Typical catalysts are 1-hydroxyethylidene-1,1-diphosphonic acid and aminotris(methylenephosphonic acid). The methylenephosphonic acid is blended with the amino acid in a molar ratio of amino acid to catalyst in the range of from about 1:1 to 40:1.
    Type: Grant
    Filed: February 16, 1995
    Date of Patent: November 28, 1995
    Assignee: Monsanto Company
    Inventors: Gregory C. Alexander, Mark E. Jason, Dennis J. Kalota
  • Chemical process
    Patent number: 4950787
    Abstract: There is disclosed an improved process for preparing 1-hydroxy-3-oxa-1,2,4,5-pentane tetracarboxylic acid and 3,6-dioxa-1,2,4,5,7,8-octane hexacarboxylic acid wherein the unreacted starting acids are recovered in more desirable crystal habit. The acids are precipitated in salt form by lowering the pH of the reaction product to a range of from 4 to below 6 stepwise. The pH is lowered to above 6 in the first step and then relatively rapidly reduced to the desired level in the second step.
    Type: Grant
    Filed: August 24, 1988
    Date of Patent: August 21, 1990
    Assignee: Monsanto Company
    Inventors: Edward J. Griffith, Liou-Liang Horng, Mark E. Jason
  • Chemical process
    Patent number: 4904824
    Abstract: There is disclosed herein improved processes for the preparation of mixtures of alkali metal salts of 1-hydroxy-3-oxa-1,2,4,5-pentane tetracarboxylate and alkali metal salts of 3,6-dioxa-1,2,4,5,7,8-octane hexacarboxylate wherein by-product calcium carbonate produced by the process of making such mixtures is employed in a recycle pattern to prepare additional amounts of mixtures of said compounds.
    Type: Grant
    Filed: August 24, 1988
    Date of Patent: February 27, 1990
    Inventors: Liou-Liang Horng, Chung Y. Shen, Mark E. Jason