Patent ID: 9692222
Date: 2017-06-27
CPC Classifications: B29C,B32B,C08J,C08K,C08L,H01B,H02G

Claim:
1. A heat-recoverable article having a cylindrical shape comprising a base material layer, wherein the base material layer contains an antioxidant and two or more polyolefin resins; wherein the base material layer has one melting-point peak temperature, and the melting-point peak temperature is 112° C. to 128° C.; wherein the heat of fusion of all of the resin components of the base material layer is 80 to 130 J/g, and the oxidation induction temperature of the base material layer is 265° C. to 280° C., wherein, among the polyolefin resins, at least one polyolefin resin has a melting-point peak temperature of 112° C. or higher, and at least one other polyolefin resin has a melting-point peak temperature of lower than 112° C. or does not have a melting-point peak temperature, and wherein the one other polyolefin resin is an ethylene-propylene copolymer elastomer, an ethylene-propylene rubber, or a polyethylene-based elastomer obtained by copolymerizing at least one of butene, hexene, and octene with ethylene.