RUBBER COMPOSITION BASED ON AT LEAST ONE EPDM AND A PHASE-CHANGE MATERIAL, PIPE INCORPORATING SAME AND PROCESS FOR PREPARING THIS COMPOSITION

摘要

The present invention relates to a crosslinked rubber composition based on at least one elastomer of ethylene-propylene-diene terpolymer (EPDM) and on at least one phase-change material (PCM), to a process for preparing the composition and to a multilayer pipe incorporating the composition. The composition includes at least 100 phr (phr: parts by weight per one hundred parts of elastomer(s)) of at least one phase-change material (PCM), and at least one PCM is dispersed in the crosslinked composition and is provided with a protection means capable of preventing its dispersion therein at a temperature above its melting point, wherein the composition has a breaking strength of greater than 3 MPa and/or an elongation at break of greater than 100% when measured at 23°C according to standard ASTM D 412.