Patents by Inventor Barrie Davies

Barrie Davies 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).

  • Polybenzimidazole solution in an ionic liquid
    Patent number: 9447242
    Abstract: A polybenzimidazole solution comprises a polybenzimidazole dissolved in an ionic liquid excluding 1-butyl-3-methylimidazolium chloride, 1-butyl-3-methylimidazolium hydroxide, and 1-butyl-3-methylimidazolium tetrafluoroborate.
    Type: Grant
    Filed: February 9, 2012
    Date of Patent: September 20, 2016
    Assignee: PBI Performance Products, Inc.
    Inventors: Bobby G. Dawkins, Barrie Davies, Gregory S. Copeland, William L. Lawson, III
  • Polybenzimidazole solution in an ionic liquid
    Patent number: 8420732
    Abstract: A polybenzimidazole solution comprises a polybenzimidazole dissolved in an ionic liquid excluding 1-butyl-3-methylimidazolium chloride, 1-butyl-3-methylimidazolium hydroxide, and 1-butyl-3-methylimidazolium tetrafluoroborate. The ionic liquid may be a salt having a melting point less than or equal to 100° C. The salt having a cation (+) and an anion (?). The cation may be selected from the group consisting of: choline, ammoniums, phosphoniums, pyridiniums, pyrrolidiniums, morpholimiums, pyrazoliums, sulfoniums, imidazoliums. The anion may be selected from the group consisting of: halides, bis(triflyl)amide, CF3SO3?, hydroxides, nitrates, sulfates, acetates, cyanates, aluminates, borates, phosphates, phosphorates, alkylsulfates, tosylates.
    Type: Grant
    Filed: December 21, 2010
    Date of Patent: April 16, 2013
    Assignee: PBI Performance Products, Inc.
    Inventors: Bobby G. Dawkins, Barrie Davies, Gregory S. Copeland, William L. Lawson, III
  • POLYBENZIMIDAZOLE SOLUTION IN AN IONIC LIQUID
    Publication number: 20110152413
    Abstract: A polybenzimidazole solution comprises a polybenzimidazole dissolved in an ionic liquid excluding 1-butyl-3-methylimidazolium chloride, 1-butyl-3-methylimidazolium hydroxide, and 1-butyl-3-methylimidazolium tetrafluoroborate.
    Type: Application
    Filed: December 21, 2010
    Publication date: June 23, 2011
    Inventors: Bobby G. Dawkins, Barrie Davies, Gregory S. Copeland, William L. Lawson, III
  • Composite electrolytes based on smectite clays and high dielectric organic liquids and electrodes
    Publication number: 20030143467
    Abstract: A composite electrolyte comprises an inorganic clay material and a dielectric solution having a dielectric constant ranging from about 50 to about 85. The composite electrolyte has an ion transference number ranging from about 0.80 to about 1.00. An electrode comprises a component selected from the group consisting of an inorganic clay filler, a polymer, and mixtures thereof. Batteries and electrochemical cells comprising the above composite electrolytes and electrodes are also disclosed.
    Type: Application
    Filed: January 21, 2003
    Publication date: July 31, 2003
    Inventors: Michael W. Riley, Peter S. Fedkiw, Saad A. Khan, Barrie Davies
  • Composite electrolytes based on smectite clays and high dielectric organic liquids and electrodes
    Patent number: 6544689
    Abstract: A composite electrolyte comprises an inorganic clay material and a dielectric solution having a dielectric constant ranging from about 50 to about 85. The composite electrolyte has an ion transference number ranging from about 0.80 to about 1.00. An electrode comprises a component selected from the group consisting of an inorganic clay filler, a polymer, and mixtures thereof. Batteries and electrochemical cells comprising the above composite electrolytes and electrodes are also disclosed.
    Type: Grant
    Filed: June 29, 2000
    Date of Patent: April 8, 2003
    Assignee: North Carolina State University
    Inventors: Michael W. Riley, Peter S. Fedkiw, Saad A. Khan, Barrie Davies