| 摘要 |
PROBLEM TO BE SOLVED: To provide a hollow sponge excellent in resistance to weather, heat, and ozone and free from internal adhesiveness; and an automotive sealing material using the hollow sponge. SOLUTION: The hollow sponge is prepared by blowing/crosslinking a rubber composition comprising (A) 100 pts.wt. ethylene/α-olefin/non-conjugated diene copolymer rubber having a non-conjugated diene content of 7.0 wt.% or higher, (B) at least 60 pts.wt. softener having kinematic viscosity at 40°C of 100 cSt or lower, (C) at least 70 pts.wt. carbon black, and (D) a blowing agent. COPYRIGHT: (C)2005,JPO&NCIPI
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