Patents by Inventor Angus Kirke MacMillan

Angus Kirke MacMillan 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).

  • Method for the preparation of phytosterols from tall oil pitch
    Patent number: 8338564
    Abstract: A method of preparing phytosterols from tall oil pitch containing steryl esters comprises the steps of converting the steryl esters to free phytosterols while in the pitch to produce a modified pitch containing the free phytosterols; removing light ends from the modified pitch by evaporation to produce a bottom fraction containing the free phytosterols; evaporating the bottom fraction to produce a light phase distillate containing the free phytosterols; dissolving the light phase distillate in a solvent comprising an alcohol to produce a solution containing the free phytosterols; cooling the solution to produce a slurry with the free phytosterols crystallized in the slurry; and, washing and filtering the slurry to isolate the crystallized phytosterols.
    Type: Grant
    Filed: August 4, 2010
    Date of Patent: December 25, 2012
    Assignee: Pharmachem Laboratories, Inc.
    Inventors: Alfred Wong, Hugh Sven Oscar Norman, Angus Kirke MacMillan
  • METHOD FOR THE PREPPARATION OF PHYTOSTEROLS FROM TALL OIL PITCH
    Publication number: 20100305342
    Abstract: A method of preparing phytosterols from tall oil pitch containing steryl esters comprises the steps of converting the steryl esters to free phytosterols while in the pitch to produce a modified pitch containing the free phytosterols; removing light ends from the modified pitch by evaporation to produce a bottom fraction containing the free phytosterols; evaporating the bottom fraction to produce a light phase distillate containing the free phytosterols; dissolving the light phase distillate in a solvent comprising an alcohol to produce a solution containing the free phytosterols; cooling the solution to produce a slurry with the free phytosterols crystallized in the slurry; and, washing and filtering the slurry to isolate the crystallized phytosterols.
    Type: Application
    Filed: August 4, 2010
    Publication date: December 2, 2010
    Inventors: Alfred Wong, Hugh Sven Oscar Norman, Angus Kirke MacMillan
  • METHOD FOR THE PREPARATION OF PHYTOSTEROLS FROM TALL OIL PITCH
    Publication number: 20090131697
    Abstract: A method of preparing phytosterols from tall oil pitch containing steryl esters comprises the steps of converting the steryl esters to free phytosterols while in the pitch to produce a modified pitch containing the free phytosterols; removing light ends from the modified pitch by evaporation to produce a bottom fraction containing the free phytosterols; evaporating the bottom fraction to produce a light phase distillate containing the free phytosterols; dissolving the light phase distillate in a solvent comprising an alcohol to produce a solution containing the free phytosterols; cooling the solution to produce a slurry with the free phytosterols crystallized in the slurry; and, washing and filtering the slurry to isolate the crystallized phytosterols.
    Type: Application
    Filed: September 18, 2008
    Publication date: May 21, 2009
    Inventors: Alfred Wong, Hugh Sven Oscar Norman, Angus Kirke MacMillan
  • Method for the preparation of phytosterols from tall oil pitch
    Publication number: 20040024175
    Abstract: A method of preparing phytosterols from tall oil pitch containing steryl esters comprises the steps of converting the steryl esters to free phytosterols while in the pitch to produce a modified pitch containing the free phytosterols; removing light ends from the modified pitch by evaporation to produce a bottom fraction containing the free phytosterols; evaporating the bottom fraction to produce a light phase distillate containing the free phytosterols; dissolving the light phase distillate in a solvent comprising an alcohol to produce a solution containing the free phytosterols; cooling the solution to produce a slurry with the free phytosterols crystallized in the slurry; and, washing and filtering the slurry to isolate the crystallized phytosterols.
    Type: Application
    Filed: July 30, 2003
    Publication date: February 5, 2004
    Inventors: Alfred Wong, Hugh Sven Oscar Norman, Angus Kirke MacMillan