| 摘要 |
<p>Provided is a developing roller including elastic layer and resin layer adhered to each other and having an appropriately resistance, thereby suppressing fogging. The developing member comprises a mandrel; an elastic layer; and a resin layer, wherein: the resin layer comprises polyurethane resin obtained by isocyanate and polyol; and the elastic layer includes cured silicone rubber composition comprising (a)-(d):
(a) organopolysiloxane having two or more alkenyl groups bonded to silicon atom and having methyl group as a group other than the alkenyl bonded to the silicon;
(b) organopolysiloxane having three or more hydrogen atoms bonded to silicon atom and having methyl group as a group bonded to the silicon;
(c) carbon black;
(d) organopolysiloxane represented by formula (1) and having Mw of 18,000-110,000 and Mw/Mn of 1.0-2.0 (R 1 represents alkenyl group, R 2 represents functional group reacting with isocyanate, and n represents an integer of 1 or more).</p> |
