DEVELOPING MEMBER, MANUFACTURING PROCESS THEREFOR AND ELECTROPHOTOGRAPHIC IMAGE-FORMING APPARATUS

摘要

Provided is a developing member which is less susceptible to compression set. A developing member which comprises a substrate, an elastic layer provided on the substrate, and a cover layer provided on the elastic layer, wherein the elastic layer comprises a cured product of a mixture comprising the components (A) to (D): (A) an organopolysiloxane that contains, in one molecule, two or more vinyl groups bonded to silicon atoms and that exhibits a viscosity of 10 to 100Pa·s at 25°C; (B) an organopolysiloxane that is composed of constituent SiO4/2 units and constituent R1R2R3SiO1/2 units wherein R1, R2 and R3 are methyl or vinyl and that contains, in one molecule, two or more vinyl groups bonded to silicon atoms; (C) an organohydrogen- polysiloxane that contains, in one molecule, two or more hydrogen atoms bonded to silicon atoms; and (D) carbon black.