Patents by Inventor Ansell L. Reid

Ansell L. Reid 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 of reducing circulation fluid loss using water absorbing polymer
    Patent number: 5086841
    Abstract: Water absorbent polymers provided, in the form of a thixotropic hydrocarbon gel, demonstrate controlled water absorption. This property enables improved usage of such polymers in the reduction of the loss of circulation fluid or as a viscous sweep in the drilling of subterranean wells.
    Type: Grant
    Filed: February 19, 1991
    Date of Patent: February 11, 1992
    Assignee: Nalco Chemical Company
    Inventors: Ansell L. Reid, Henry A. Grichuk
  • Polymer composition comprising phosphorous-containing gelling agent and process thereof
    Patent number: 5034139
    Abstract: Water absorbent polymers provided, in the form of a thixotropic hydrocarbon gel, demonstrate controlled water absorption. This property enables improved usage of such polymers in the reduction of the loss of circulation fluid or as a viscous sweep in the drilling of subterranean wells.
    Type: Grant
    Filed: June 19, 1989
    Date of Patent: July 23, 1991
    Assignee: Nalco Chemical Company
    Inventors: Ansell L. Reid, Henry A. Grichuk
  • Two-step process for removing boron compounds from aqueous solutions of magnesium chloride
    Patent number: 4208392
    Abstract: A two-step process for removing boron impurities from aqueous solutions of magnesium chloride which comprises treating these solutions with more than 3 moles of methanol in the presence of an acid catalyst to form trimethyl borate and then removing the trimethyl borate and excess methanol from such solutions by means of distillation and then extracting from the thus-treated solutions any remaining boron compounds by means of a hydrocarbon liquid.The hydrocarbon liquid extraction step may be used prior to the methanol treatment.
    Type: Grant
    Filed: March 23, 1979
    Date of Patent: June 17, 1980
    Assignee: Nalco Chemical Co.
    Inventors: Ronald J. Allain, David G. Braithwaite, Ansell L. Reid
  • Boron removal from ethylene glycol-magnesium chloride solutions
    Patent number: 4201758
    Abstract: A method for removing boric acid and salts therefrom from ethylene glycol-magnesium chloride solutions which contain at least 100 ppm of boron which comprises reducing the pH of such solutions below 7 and then adding thereto at least 3 moles of methanol based on the amount of boric acid or salt thereof present in said solution and then subjecting the thus-treated ethylene glycol-magnesium chloride solution to distillation at a temperature sufficient to remove trimethyl borate-methanol therefrom, thereby reducing the level of boron in the starting solution to not more than 35 ppm.
    Type: Grant
    Filed: March 22, 1979
    Date of Patent: May 6, 1980
    Assignee: Nalco Chemical Co.
    Inventors: Ronald J. Allain, David G. Braithwaite, Ansell L. Reid
  • Gasoline additive comprising a blend of methylcyclopentadienyl manganese tricarbonyl and certain methylcyclopentadiene dimer compounds
    Patent number: 4140491
    Abstract: Gasoline containing an additive comprising about 70% by weight of methylcyclopentadienyl manganese tricarbonyl and about 30% of a composition selected from the group consisting of methylcyclopentadiene dimer compounds, hydrogenated methylcyclopentadiene dimer compounds, and the alcohols of methylcyclopentadiene dimer compounds, said additive being present in the gasoline in an amount sufficient to increase its anti-knock effectiveness.
    Type: Grant
    Filed: November 21, 1977
    Date of Patent: February 20, 1979
    Assignee: Nalco Chemical Company
    Inventors: Ronald J. Allain, Ansell L. Reid