Charge control agent and toner comprising the same

US8029959B2 · kind B2 · utility

Assignee

• Hubei Dinglong Chemical Co., Ltd. · CN

Inventors

• Lin Wu · Changsha, CN
• Zhilin Xia · 红钢城街道, CN
• Shuangquan ZHU · 红钢城街道, CN

Key dates

• Filing date: May 23, 2007
• Grant date: Oct 4, 2011
• Expiry date: Jan 4, 2030

Classification

• Technology area (CPC G): Physics
• CPC primary: G03G9/09783
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Taught herein is a charge control agent comprising a specific type of gallic acid metal complex represented by the following Chemical Formula (1) or Chemical Formula (2):In the formula (1), R1 represents an alkyl group containing 1-12 carbon atoms, an alkenyl group containing 1-12 carbon atoms, a substituted or unsubstituted aryl group containing 6-12 carbon atoms, or a hydrogen atom; R2 and R4 can independently represent an alkyl group containing 1-12 carbon atoms, an alkenyl group containing 2-12 carbon atoms, an alkoxy group containing 1-12 carbon atoms, a substituted or unsubstituted aryl group containing 6-12 carbon atoms, a halogen atom, or a hydrogen atom; R3 represents an alkyl group containing 1-12 carbon atoms, a substituted or unsubstituted aryl group containing 6-12 carbon atoms, a potassium atom, a sodium atom or a hydrogen atom. M represents a divalent to tetravalent metal atom, A is a counterion, m is a number from 1 to 3, and n is 1 or 2.