| 摘要 |
PURPOSE:To prevent toner filming on a carrier and photoconductive drum by using an epoxy compd. which contains at least >=2 epoxy groups in one molecule and is modified by an aliphat. dibasic acid as a binder resin. CONSTITUTION:The bisphenol type epoxy resin contg. the bisphenol A expressed by the formula as a repeating unit is modified by the aliphat. dibasic acid and is used as the binder resin. An aliphat. satd. carboxylic acid, aliphat. unsatd. carboxylic acid or a mixture composed of the aliphat. satd. carboxylic acid and aliphat. unsatd. carboxylic acid is used for the binder resin. The aliphat. satd. carboxylic acid includes an oxalic acid, malonic acid, succinic acid, glutaric acid, adipic acid, pimelic acid, suberic acid, azelaic acid and sebacic acid and the aliphat. unstad. carboxylic acid includes a maleic acid, fumaric acid and oleic acid. |
