Patents by Inventor George B. Butler

George B. Butler 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 enhancing polymerization of dialkyldiallyl ammonium compounds to produce high molecular weight polymers
    Patent number: 4742134
    Abstract: An improved method for preparing a polymer of a dialkyldiallyl ammonium compound comprising effecting polymerization in the presence of a free radical initiator and sufficient fluoride ion to increase the molecular weight of the polymer and accelerate the rate of polymerization.
    Type: Grant
    Filed: October 22, 1986
    Date of Patent: May 3, 1988
    Assignee: University of Florida
    Inventors: George B. Butler, Huey Pledger, Jr.
  • Water-soluble graft copolymers of starch-acrylamide and uses therefor
    Patent number: 4400496
    Abstract: Graft copolymers having starch as the central chain with grafted side chains of acrylamide or acrylamide-acrylic acid, and a process for preparation of such copolymers in the presence of Ce.sup.+4 or other redox initiators. These copolymers are employed in preparing highly viscous aqueous solutions that are particularly useful in oil recovery from subterranean wells.
    Type: Grant
    Filed: September 22, 1980
    Date of Patent: August 23, 1983
    Assignee: University of Florida
    Inventors: George B. Butler, Thieo E. Hogen-Esch, John J. Meister, Huey Pledger, Jr.
  • Solvolytic degradation of pyrotechnic materials containing crosslinked polymers
    Patent number: 4098627
    Abstract: Pyrotechnic materials containing a crosslinked polymer as a component thef are decomposed by heating to a temperature of about 50.degree. to about 160.degree. C in a liquid medium comprising an active hydrogen containing compound capable of cleaving the chemical bonds contained in said polymer. One or more components of the pyrotechnic material may be separated from the products of the decomposition and reclaimed.
    Type: Grant
    Filed: December 15, 1976
    Date of Patent: July 4, 1978
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Albert S. Tompa, David M. French, George B. Butler, Melvin S. Kaufman
  • Gel chromatography process for fractionating ionic polymers
    Patent number: 3962206
    Abstract: A gel chromatographic method of fractionating ionic polymer systems comprising passing the system through a gel chromatography bed of ionic polymer wherein the charge on the gel polymer is identical to the charge on the ionic polymer to be fractionated.
    Type: Grant
    Filed: July 19, 1974
    Date of Patent: June 8, 1976
    Assignee: The Board of Regents of the State of Florida
    Inventor: George B. Butler