Ionic conductor rubber composition and ionic conductor roller using the composition

Abstract

The ionically conductive rubber composition comprises (A) an organopolysiloxane having in one molecule at least two alkenyl groups each bound to a silicon atom, (B) an organohydrogenpolysiloxane having in one molecule at least two hydrogen atoms each bound to a silicon atom and a polyether group via an alkylene linkage to a silicon atom, (C) a hydrosilylation catalyst, (D) an ionically conductive compound and (E) a phenolic antioxidant. The ionically conductive rubber roll comprises a core metal and an ionically conductive rubber layer consisting of the cured product of the above composition covering the circumference of the core metal.

Description

technical field

[0001] The present invention relates to an ion-conductive rubber composition used for a roller of an electrophotographic image forming device or the like and a similar product material, and an ion-conductive roller using the composition. Background technique

[0002] (Refer to Patent Document 1) has disclosed a hydrosilylation reaction curable composition comprising a polyether having an alkenyl group at a terminal of a molecular chain, an organohydrogenpolysiloxane, and a platinum-based catalyst. In addition (refer to Patent Document 2) there has also been disclosed a method of producing an ion-conductive type roller in which a composition prepared by adding a compound that imparts conductivity to an addition-curable rubber composition is cured, thereby providing An ion-conductive rubber layer formed around the outside of a roller shaft, wherein the composition contains polyoxyalkylene as a main component, and is cured by a hydrosilylation reaction. [0003...

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