Electrostatographic toner including a wax coated pigment and met

Details Electrostatographic toner including a wax coated pigment and met Electrostatographic toner including a wax coated pigment and met

1992-05-28

1994-02-01

Goodrow, John

Radiation imagery chemistry: process, composition, or product th

Electric or magnetic imagery, e.g., xerography,...

Process of making developer composition

430106, G03G 9097

Patent

active

052831493

ABSTRACT:
A method is described for the preparation of electrostatographic toner particles which involves the surface treatment of a pigment by depositing thereon a coating of a low melting point wax. The method involves preparing a mixture of a wax solution and a pigment dispersion which is heated to a temperature sufficient to assure dissolution of wax and permitting the mixture to cool slowly to room temperature at which point a coating of wax is deposited upon the surface of the pigment. The wax coated pigment particles are then used as a component of the organic phase in a limited coalescence process.

REFERENCES:
patent: 4535049 (1985-08-01), Honda et al.
patent: 4789617 (1988-12-01), Arahara et al.
patent: 4833060 (1989-05-01), Nair et al.
patent: 4835084 (1989-05-01), Nair et al.
patent: 4965131 (1990-10-01), Nair et al.
patent: 5176978 (1993-01-01), Kumashiro et al.

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