| 摘要 |
PURPOSE:To provide the title heat-resistant rubber roll which does not cause bleedout and has excellent high-temperature rubber elasticity, surface smoothness, etc., by forming part or the whole of the roll from a specified thermoplastic elastomer material. CONSTITUTION:100pts.wt. hydrogenated block copolymer (A) obtd. by hydrogenating a block copolymer composed of a plurality of polymer blocks mainly composed of an arom. vinyl compd. and at least one polymer block mainly composed of a conjugated diene compd. is mixed with 20-300pts.wt. non-arom. softener (B) for rubber, 20-300pts.wt. polyolefin resin and/or polystyrene resin (C) and 10-250pts.wt. polyphenylene ether resin (D) having a reduced viscosity of 0.15-0.7, composed of a unit of the formula (wherein R1, R2, R3 and R4 are each a member selected from the group consisting of H, halogen, a hydrocarcon, etc.). The title heat-resistant rubber roll for business machines is formed from the resulting thermoplastic elastomer material.
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