abstract |
(57) [Summary] [PROBLEMS] To obtain a resin flexible boot excellent in bending fatigue resistance, appearance, and production stability. A resin flexible boot having a shape in which a large diameter portion and a small diameter portion are connected by a bellows portion, The resin forming the flexible boot is a thermoplastic polyester elastomer obtained by blending 0.01 to 10 parts by weight of a bifunctional or more epoxy compound (B) with 100 parts by weight of the polyester block copolymer (A). A flexible boot made of resin, characterized in that: |