Patents by Inventor Samuel J. Washington

Samuel J. Washington 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).

  • Processes for making ethanolamines
    Patent number: 5395973
    Abstract: An improved process for reducing the amount of at least the glycol ether byproducts formed in a process for making unsubstituted ethanolamines from the reaction of ethylene oxide and ammonia or in a process for making substituted ethanolamines via the reaction of ethylene oxide and a substituted amine, wherein carbon dioxide or a material which will evolve carbon dioxide is fed to a reactor for making the unsubstituted or substituted ethanolamine.
    Type: Grant
    Filed: April 5, 1994
    Date of Patent: March 7, 1995
    Assignee: The Dow Chemical Company
    Inventors: Samuel J. Washington, Tony F. Grant
  • Processes for making ethanolamines
    Patent number: 5334763
    Abstract: A process for reducing the amount of the ethoxylated amine byproducts MEAGE, DEAGE and TEAGE formed in a process for making ethanolamines from the reaction of ethylene oxide and ammonia, comprising feeding carbon dioxide or a material which will evolve carbon dioxide to a reactor for conducting such process.
    Type: Grant
    Filed: April 22, 1993
    Date of Patent: August 2, 1994
    Assignee: The Dow Chemical Company
    Inventors: Samuel J. Washington, Tony F. Grant
  • Neutralization of polyakylene carbonate polyols for polyurethane prepolymer synthesis
    Patent number: 5189196
    Abstract: A prepolymer stabilization process for polyalkylene carbonate polyols includes the steps of adding a small quantity of an organosulfonic acid with stirring until base neutralization is achieved. One measure of base neutralization is a negative CPR, a test relating to controlled polymerization rate.
    Type: Grant
    Filed: August 15, 1991
    Date of Patent: February 23, 1993
    Assignee: The Dow Chemical Company
    Inventors: Anthony W. Mancusi, III, Samuel J. Washington
  • Process of polymerizing epoxides in solvent mixtures to form granular polymer products
    Patent number: 4650853
    Abstract: Epoxides are polymerized in granular form which is easily processed. The polymerization occurs in a solvent system composed of significant portions of two different solvents.
    Type: Grant
    Filed: November 15, 1985
    Date of Patent: March 17, 1987
    Assignee: The Dow Chemical Company
    Inventors: Donna B. Carville, Samuel J. Washington