The Malaysian Rubber Producers Research Association

Ian R Gelling

Andrew J Tinker

Carl L Riddiford

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.

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Welwyn, United Kingdom

Ian R Gelling