摘要 |
PURPOSE:To prevent deterioration in the performance of a charge providing material by use for a long period by holding triarylstibine oxide on at least the surface of the charge providing material. CONSTITUTION:Triarylstibine oxide represented by the formula (where Ar is optionally substituted aryl) is held on at least the surface of a charge providing material. The compound represented by the formula is obtd. by suspending the corresponding triarylstibine in a potassium hydroxide soln. and oxidizing it with hydrogen peroxide under cooling. The compound represented by the formula is generally used in the form of particles of 10-0.01mum average particle size. Polystyrene, polyacrylate or the like can be used as a binding or molding resin, and the resin is used so that the amount of the compound is regulated to 0.5-200pts.wt. per 100pts.wt. resin. When the compound is applied to the surface of the charge providing material, it is preferably applied by 0.01-10mg/cm<2>. Thus, a satisfactory charge providing material having superior durability during use under friction with a toner is obtd. |