| 摘要 |
PROBLEM TO BE SOLVED: To provide an image forming device member consisting of a polyurethane which has realized a low electric resistance by addition of a small amount of an electrolyte. SOLUTION: The image forming device member which consists of a conductive polyurethane formed by curing a composition containing a polyurethane raw materials and a strong electrolyte and/or weak electrolyte and does not abut on an image forming body, consists of a polyether polyol which is >=4,500 in weight average molecular weight and >=15 wt.% in the content of an ethylene oxide unit and trifunctional and/or polyol which is >=1,500 in weight average molecular weight and >=15 wt.% in the content of the ethylene oxide unit and contains bifunctional polyether polyol of >=60 wt.% and polyisocyanate, in which the amount of the strong electrolyte to be added is 0.3 to 2.0 pts.wt. per 100 pts.wt. polyol and the amount of the weak electrolyte to be added is 1.0 to 5.0 pts.wt. per 100 pts.wt. polyol.
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