Patents by Inventor Anthony Cyril Soden

Anthony Cyril Soden 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: 7217385
    Abstract: A method of preparing a plasticised particulate polyvinyl alcohol (PVA) composition is provided, comprising: mixing, in a mixer, at a mixer speed and for a time sufficient that the mixture attains a temperature of at least 50° C.: particulate PVA resin in an amount from 80% to 90% by weight of the mixture; and plasticiser in an amount from 10% to 20% by weight of the mixture, wherein at least a portion of the plasticiser is water; monitoring the apparent viscosity of the mixture during mixing and continuing mixing until the apparent viscosity of the mixture has peaked to a maximum and dropped off to a substantially constant level, thereby to obtain a plasticised particulate mixture having a moisture content in the range from 7% to 14%; preferably adding an anti-caking agent in an amount from 0.05% to 0.
    Type: Grant
    Filed: May 13, 2005
    Date of Patent: May 15, 2007
    Assignee: Polyval plc
    Inventors: Paul Anthony Taylor, Kevin Mark Goninan, Thomas Vivian Simpkins, Michael Thomas Williams, Anthony Cyril Soden