Patents by Inventor Geoffrey Bradley

Geoffrey Bradley 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).

  • Patent number: 4524163
    Abstract: This invention provides plasticizer additive compositions, for use in cementiferous compositions, which enhance the early gain of compressive strength. The plasticizer additive compositions comprise an aqueous solution of a copolymer or salt thereof, comprising an ethylenically unsaturated monomer having a hydroxyl functional group and an accelerator additive.
    Type: Grant
    Filed: June 11, 1984
    Date of Patent: June 18, 1985
    Assignee: Internationale Octrooi Maatschappij "Octropa" B.V.
    Inventors: Geoffrey Bradley, John T. Hoarty, Ian M. Howarth
  • Patent number: 4473406
    Abstract: This invention provides cementiferous compositions having improved flow characterisitics which are given by the incorporation of certain hydroxy acrylate copolymers. Typical copolymers are of acrylic or methacrylic acid with a hydroxyalkyl acrylate or methacrylate and are used preferably in the range 0.01% to 2.5% w/w on the cement in the cementiferous composition. This invention also provides novel additive compositions for use in the cementiferous compositions.
    Type: Grant
    Filed: June 8, 1983
    Date of Patent: September 25, 1984
    Assignee: National Starch and Chemical Corporation
    Inventors: Geoffrey Bradley, Chester D. Szymanski
  • Patent number: 3944521
    Abstract: Anaerobically curable compositions comprising a polyalkoxy diacrylate ester monomer in which the alcohol moiety contains an aromatic group, and a latent initiator for polymerisation, and comprising further an amino alcohol acrylate ester reactable with the monomer.
    Type: Grant
    Filed: October 24, 1974
    Date of Patent: March 16, 1976
    Assignee: Rocol Limited
    Inventors: Geoffrey Bradley, Keith Hargreaves, Paul Wainwright