RUBBER COMPOSITION CONTAINING AT LEAST ONE KIND OF EPDM AND PHASE CHANGE MATERIAL, TUBE INCORPORATING THE SAME, AND PROCESS FOR MANUFACTURING THE COMPOSITION

摘要

PROBLEM TO BE SOLVED: To provide a cross-linked rubber composition containing at least one kind of ethylene-propylene-diene-terpolymer type (EPDM) elastomer and at least one kind of phase change material (PCM), a process for manufacturing the composition, and a multi-layer tube incorporating the same.;SOLUTION: A rubber composition contains at least 100 phr (phr: pts.wt. based on 100 parts of elastomer) of which at least one kind of phase change material (PCM) is included, the at least one kind of PCM is dispersed in a crosslinked composition, protective means which can prevent dispersion of PCM at a higher temperature than its melting temperature is applied, and the composition has a breaking strength of 3 MPa or more and/or a breaking extension of 100% or more. These characteristics are determined at 23°C according to ASTMD412 standard.;COPYRIGHT: (C)2014,JPO&INPIT