Patents by Inventor Sten Gylfe

Sten Gylfe 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).

  • Process for the absorption of organic liquids by use of a hydrophobic fibrous material
    Patent number: 4519918
    Abstract: A process is provided for the absorption of organic liquids, particularly oil, using hydrophobic fibrous material prepared by impregnating fibrous material comprising cellulose fibers with a liquid resinous material selected from the group consisting of acrylate prepolymers and polymers, alkyd prepolymers and polymers, and polyester prepolymers and polymers in an amount to provide in the impregnated fibrous material from about 0.5 to about 30% by weight polyacrylate, polyalkyd or polyester, and then heating the impregnated fibrous material to convert the polymer or prepolymer by chemical reaction into a hydrophobic polymer rendering the fibrous material hydrophobic.
    Type: Grant
    Filed: January 24, 1983
    Date of Patent: May 28, 1985
    Assignee: Papyrus Kopparfors AB
    Inventors: Thomas Ericsson, Sten Gylfe, Mats-Olov Hedblom