ATMOSPHERIC TEMPERATURE SHRINKABLE TUBE FOR CABLE CONNECTION PART, AND CABLE CONNECTION PART

摘要

PROBLEM TO BE SOLVED: To provide: an atmospheric temperature shrinkable tube for a cable connection part which is flexible, superior in processability, hard to cause a fracture in the condition that it is extended in diameter or stretched, and excellent in permanent elongation characteristic and stress relaxation characteristic, and has good flaw resistance; and a cable connection part having such an atmospheric temperature shrinkable tube.SOLUTION: An atmospheric temperature shrinkable tube for a cable connection part comprises a cross-linked body of a composition including polymer components consisting of: (A) 3-30 mass% of ethylene-propylene-diene ternary copolymer (hereinafter referred to as "EPDM") including 45-50 mass% of ethylene and 8.0-10.0 mass% of diene and having a Mooney viscosity ML(100°C) of 25-35; (B) 50-70 mass% of EPDM including 63-69 mass% of ethylene and 4.4-5.0 mass% of diene and having Mooney viscosity ML(100°C) of 35-40; and (C) 20-30 mass% of EPDM including 56-62 mass% of ethylene, 9.0-10.0 mass% of diene and having a Mooney viscosity ML(125°C) of 71-76.