Process for producing toner through suspension polymerization

Details Process for producing toner through suspension polymerization Process for producing toner through suspension polymerization

1986-12-23

1989-07-04

Goodrow, John L.

Radiation imagery chemistry: process, composition, or product th

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

Process of making developer composition

430110, G03G 906

Patent

active

048450073

ABSTRACT:
A dispersion stabilizer having a nitrogen-containing organic group and a water-soluble acidic substance are added to an aqueous medium. Into the aqueous medium, a monomer composition comprising at least a polymerizable monomer, an anionic polymer, a polymerization initiator and a colorant is added and dispersed therein into a prescribed particle size. The particles of the monomer composition are subjected to suspension polymerization. The resultant toner is caused to have a sharp particle size distribution and an improved anti-blocking property because of the combined effects of the dispersion stabilizer and the acidic substance contained in the aqueous medium and the anionic polymer contained in the monomer composition.

REFERENCES:
patent: 4401742 (1983-08-01), Chiang
patent: 4592990 (1986-06-01), Takagi et al.
patent: 4601968 (1986-07-01), Hyosu
patent: 4609607 (1986-09-01), Takagi et al.
patent: 4652508 (1987-03-01), Ober et al.
Research Disclosures, No. 100 (1972) 54:6.

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