| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a heat-shrinkable tube having excellent chemical resistance, heat aging resistance, and flexibility, having no problem such as dripping during burning, and excellent in the property not having damages such as rupture even when being bent at a very low temperature (low temperature property) and a method for manufacturing the same. <P>SOLUTION: The heat-shrinkable tube is formed of a resin composition containing (A) a polyester elastomer composed of two kinds of recurring units, and (B) a ternary copolymer composed of (a) ethylene, (b) a monomer of alkyl acrylate or alkyl methacylate having 1-4C alkyl group, and (c) a carboxy group-containing monomer, and having a content of (b) of 40 wt.% or more and less than 90 wt.% with respect to the total of (a), (b) and (c), wherein a mixing ratio (weight ratio) of (A) to (B) is within the range of 40:60-95:5; (B) is dynamically cross-linked, and is finely dispersed in a matrix of (A), and (A) is cross-linked. <P>COPYRIGHT: (C)2012,JPO&INPIT |
