Patents by Inventor George H. Barnett

George H. Barnett 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).

  • Cation-exchange resins and use as membranes in electrolytic cells
    Patent number: 4602045
    Abstract: Process of radiation graft polymerizing a fluorinated unsaturated carboxylic acid monomer to a fluoropolymeric permselective membrane in order to improve its performance when used in an electrolysis cell.
    Type: Grant
    Filed: May 9, 1985
    Date of Patent: July 22, 1986
    Assignee: ICI Australia Limited
    Inventors: Michael V. Markus, George H. Barnett
  • Microporous hydrophilic fluoropolymer membranes and method
    Patent number: 4506035
    Abstract: An hydrophilic microporous diaphragm comprising a fluorine-containing substrate to which has been radiation co-grafted a mixture of monomers comprising at least one functional monomer of formula I, CF.sub.2 .dbd.CF(CF.sub.2).sub.n A, formula II, CF.sub.2 .dbd.CF--O--(CFX--CFX).sub.m A, a dicarboxylic acid containing the group of formula III, --R.sup.3 (COOH)--R.sup.4 (COOH)--, and at least one non-functional monomer of formula IV, CY.sub.2 .dbd.CYZ, or formula V ##STR1## wherein the molar ratio of co-grafted functional monomer to non-functional monomer is in the range of 2:1 to 1:20. These diaphragms have enhanced wettability for improved performance in chlor-alkali cells.
    Type: Grant
    Filed: February 17, 1983
    Date of Patent: March 19, 1985
    Assignee: ICI Australia Limited
    Inventors: George H. Barnett, Michael V. Markus
  • Polymerization process
    Patent number: 4481306
    Abstract: A process of preparing cation exchange resins by radiation grafting with copolymerization onto a perhalogenated fluorine-containing hydrocarbon polymer at least one functional monomer of formulaCF.sub.2 .dbd.CF(CF.sub.2).sub.n A orCF.sub.2 .dbd.CF-O(CFX-CFX).sub.m Aand at least one non-functional monomer of formula CF.sub.2 .dbd.CFY, and optionally in the presence of a polymerization inhibitor and a chain transfer agent.
    Type: Grant
    Filed: March 25, 1983
    Date of Patent: November 6, 1984
    Assignee: ICI Australia Limited
    Inventors: Michael V. Markus, George H. Barnett
  • Process of separating asbestos fibers and product thereof
    Patent number: 4226672
    Abstract: A process of separating fibres from asbestos-bearing material which process comprises the steps by treating said asbestos-bearing material with a chemical agent capable of reacting with, or adsorbing on, asbestos fibres to form a dispersion, and agglomerating said dispersion. The process gives high yields of novel fibres characterized in that the said fibres provide reinforcement in cementitious compositions.
    Type: Grant
    Filed: June 27, 1978
    Date of Patent: October 7, 1980
    Assignee: ICI Australia Limited
    Inventors: Victor J. Absolon, George T. Hurst, John C. Worboys, George H. Barnett, Ross P. Dickson
  • Cementitious composition containing asbestos fibres and prepared using a surfactant
    Patent number: 4190456
    Abstract: Cementitious compositions containing novel asbestos fibres characterized in that the said asbestos fibres are prepared from asbestos-bearing material by a process comprising treating said asbestos-bearing material with a surfactant to form a dispersion and agglomerating said dispersion.
    Type: Grant
    Filed: June 27, 1978
    Date of Patent: February 26, 1980
    Assignee: ICI Australia Limited
    Inventors: Victor J. Absolon, George T. Hurst, John C. Worboys, George H. Barnett, Ross P. Dickson
  • Explosive composition flowable over wide temperature range
    Patent number: 4134780
    Abstract: A process for making an explosive composition which process comprises heating a mixture comprising at least one oxygen releasing salt and at least one compound selected from a class of melt soluble fuel materials so as to form a melt, and adding to the melt an amount of oxygen releasing salt material whereby there is formed an explosive composition which is pourable, pumpable or flowable over a wide range of temperature. Explosive compositions are described also.
    Type: Grant
    Filed: October 31, 1977
    Date of Patent: January 16, 1979
    Assignee: ICI Australia Limited
    Inventor: George H. Barnett