Roller for office automation equipment

摘要

A roller for office automation equipment which does not suffer from impairment of a cross-linking reaction or occurrence of a delay therein, is excellent in permanent set resistance and low-temperature bleedability, and permits achievement of a low hardness. A preferred roller for office automation equipment comprises a base rubber layer, an intermediate layer and a surface layer formed in this sequence on an outer peripheral surface of a shaft, wherein the base rubber layer is formed of a liquid rubber composition containing the following constituents (A) to (D): (A) a liquid rubber, derived from at least one of butadiene and isoprene, and having a structural unit (alpha) having an alkenyl group on the side chain thereof; (B) a hydrosilyl cross-linking agent; (C) a hydrosilylation catalyst; and (D) a mineral oil containing not more than 0.31 wt. % sulfur.