Patents by Inventor Terrence J. Blain

Terrence J. Blain 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: 5895556
    Abstract: A waste paper treatment process for the recycle and re-use of waste paper, which process comprises treating the waste paper, in a repulper, with a surfactant, in the absence of traditional repulper chemicals such as silicate, caustic and peroxide. The surfactant is preferably a copolymer of ethylene oxide and propylene oxide, and is used in a sufficient concentration to form ink agglomerates. The ink agglomerates are retained on the paper, rather than being removed as in waste paper deinking. The process permits the elimination of normal repulper chemicals, and reduces the amount of ink sludge generated, while providing acceptable brightness levels for the recycled pulp.
    Type: Grant
    Filed: February 13, 1995
    Date of Patent: April 20, 1999
    Assignee: ICI Canada Inc.
    Inventors: Loreen D. Ferguson, Terrence J. Blain, Jeanette E. Grant, Christine M. Parent