Patents by Inventor Ian R. Gelling

Ian R. Gelling 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).

  • Elastoplastic compositions
    Patent number: 4769416
    Abstract: The elastoplastic composition comprises a blend of a thermoplastic polyolefin resin, such as polypropylene, and vulcanized epoxidized natural rubber and has good oil resistance without the use of nitrile rubber and has good mechanical properties without the need for compatibilizing agents. The elastoplastic composition may be prepared by a method which comprises mixing the thermoplastic polyolefin resin and epoxidized natural rubber at a temperature sufficient to soften or melt the resin to give an intimate blend, then while continuing mixing, adding curative for the rubber and vulcanizing the epoxidized natural rubber at a vulcanization temperature.
    Type: Grant
    Filed: March 18, 1987
    Date of Patent: September 6, 1988
    Assignee: The Malaysian Rubber Producers' Research Association
    Inventors: Ian R. Gelling, Andrew J. Tinker, Carl L. Riddiford