Conductive roll

Details Conductive roll Conductive roll

1999-07-28

2000-11-14

Cuda, Irene

Roll or roller

Concentric layered annulus

Specific composition

492 59, B23P 1500

Patent

active

061463205

ABSTRACT:
A conductive roll available at low cost and superior both in moldability and compression set and having small dispersion or fluctuation in electrical resistance includes a shaft and a base rubber layer formed on a peripheral surface of the shaft, the base rubber layer formed of a composition containing the following components (A) to (C): (A) a liquid polymer having a structural unit (.alpha.) derived from at least one of butadiene and isoprene and having an alkenyl group in a side chain thereof; (B) a hydrosilylation crosslinking agent; and (C) a hydrosilylation catalyst. In the conductive roll the alkenyl group of the structural unit (.alpha.) in the liquid rubber (component A) becomes a crosslinking site and is present in a molecule thereof as a so-called pendant form so that the base rubber layer as a crosslinked mold comes to have a dense net structure due to the effects by the hydrosilylation crosslinking agent (component B) and the hydrosilylation catalyst (component C), thereby to obtain good copied images.

REFERENCES:
patent: 5409995 (1995-04-01), Iwahara et al.
patent: 5541001 (1996-07-01), Vreeland et al.
patent: 5567833 (1996-10-01), Iwahara et al.
patent: 5580925 (1996-12-01), Iwahara et al.
patent: 5582885 (1996-12-01), Nakamura et al.
patent: 5587245 (1996-12-01), Visser et al.
patent: 5654052 (1997-08-01), Visser et al.
patent: 5733235 (1998-03-01), Waku et al.
patent: 5736250 (1998-04-01), Heeks et al.

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