发明名称 ELECTROPHOTOGRAPHIC DEVELOPER COMPOSITION
摘要 PURPOSE:To obtain the titled composition capable of preventing offset without applying any offset preventing solution, by using a specific polyester resin to a main component of a binding resin of the titled composition, and by incorporating at least two kinds of electric charge controlling agents to the titled composition. CONSTITUTION:The main component of the binding resin contd. in the titled composition is composed of the polyester resin obtd. by effecting a condensation polymerization of a diol component shown by formula I, a divalent carboxylic acid or its acid anhydride or its lower alkylester, and >= trivalent carboxylic acid or its acid anhydride or its lower alkylester or trivalent polyhydric alcohol. The polyester resin has >=1.2 OHV/AV (wherein, AV is the acid value and OHV is the hydroxyl value). The titled composition contains at least two kinds of the electric charge controlling agents. Thus, the titled composition capable of giving a sufficient broad nonoffset range is obtd.
申请公布号 JPS6368849(A) 申请公布日期 1988.03.28
申请号 JP19860213511 申请日期 1986.09.10
申请人 KAO CORP 发明人 KAWABE KUNIYASU;NAWA MASAYOSHI;HAYASHI TOKUHIRO
分类号 C08G63/668;G03G9/087;G03G9/097 主分类号 C08G63/668
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