Patents by Inventor Andrew C. Mackie

Andrew C. Mackie 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).

  • Thermally depolymerisable polyoxalate or polymalonate polymers containing hydrocarbon groups with 6-30 carbon atoms and a tertiary carbon atoms attached to bridging oxygen atom
    Patent number: 5412062
    Abstract: Thermally depolymerizable polyoxalate and polymalonate polymers which contain hydrocarbon groups having from 6 to 30 carbon atoms and a tertiary carbon atom attached to at least one of the bridging oxygen atoms in the structure are usable as binders for powdered glass ceramic or metallic materials, and as rheological control agents in paste formulations.
    Type: Grant
    Filed: May 19, 1994
    Date of Patent: May 2, 1995
    Assignee: Cookson Group plc
    Inventors: Gerald A. Power, Alison M. Wagland, Andrew C. Mackie
  • Paste formulations for use in the electronics industry
    Patent number: 5223033
    Abstract: In a paste for use in the electronics industry which comprises:i) a non aqueous vehicle; andii) a particulate filler material, the improvement which comprises the vehicle being a stable emulsion of at least two immiscible organic liquids of at least 50% by volume disperse phase, one of which liquids is selected from the group consisting of a polar solvent and a mixture of polar solvents, and the other of which liquids is selected from the group consisting of an aliphatic hydrocarbon and a mixture of aliphatic hydrocarbons and the paste, when heated to remove the vehicle therefrom yields less than 3.0% by weight of organic residues based on the weight of the paste.
    Type: Grant
    Filed: April 27, 1992
    Date of Patent: June 29, 1993
    Assignee: Cookson Group PLC
    Inventors: Charles E. King, Andrew C. Mackie, Geoffrey A. Paterson