| HUBEI DINGLONG CHEMICAL CO., LTD. Patent applications |
| Patent application number | Title | Published |
|---|
| 20100105884 | METHOD FOR PRODUCING CHARGE CONTROL AGENT AND TONER - A method for producing a charge control agent or a toner containing the charge control agent comprising reacting in aqueous medium an azo compound with a salicylic acid chromium complex. | 04-29-2010 |
| 20100015547 | METHOD FOR PRODUCING ELECTROSTATIC IMAGE DEVELOPING TONER - Provided is a method for producing an electrostatic image developing toner comprising: agglutinating wax and resin particles in aqueous medium; manufacturing a toner composed of wax and resin for developing an electrostatic image, wherein the wax is inside colorants. The method solves the problems of existing toner for developing an electrostatic image, such as low dispersion and easy detachment of colorants, low image density, the contamination of carriers and developing sleeves and low durability. The toner of the invention has high roll viscosity resistance and durability, and the colorants will not detach. | 01-21-2010 |
| 20080261137 | CHARGE CONTROL AGENT AND TONER COMPRISING THE SAME - Discussed herein are a charge control agent and toner comprising said charge control agent. Said toner of the invention is comprised of a resin, a colorant, and the charge control agent, wherein, said charge control agent is comprised of a specific type of metal complexes. In the invention, the charge control agent has excellent charge control properties and the characteristics of uniform crystalline size, high charge speed, high thermo stability, low moisture absorption, and good compatibility with resin. The toner of the invention has excellent electrical characteristics and produces stable image of high quality under a wide range of environmental conditions without dusting and fogging. | 10-23-2008 |
| 20080255282 | CHARGE CONTROL AGENT AND TONER COMPRISING THE SAME - This invention teaches a charge control agent and a toner containing such a charge control agent. It solves the problem in current toner processing technique of inadequate electrification, unequal quantity of electricity, spreading and bottom ash. The charge control agent comprising metal complex of tannin acid in which metal atoms have 2 to 4 valences and tannin acid as coordination sub structure. The toners mentioned above at least contains resin, dyestuff and charge control agent of the invention. The powered carbon specializes in excellence in electrification, environment influence retardant. It can obtain stable and high definition image without spreading and bottom ash troubling. | 10-16-2008 |
| 20080227012 | CHARGE CONTROL AGENT AND TONER COMPRISING THE SAME - 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): | 09-18-2008 |
