Production of toner through polymerization

Details Production of toner through polymerization Production of toner through polymerization

1986-12-29

1988-12-06

Martin, Roland E.

Radiation imagery chemistry: process, composition, or product th

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

Process of making developer composition

563333, 524458, 565316, 526 73, 526201, G03G 908, C08F 200

Patent

active

047896175

ABSTRACT:
A toner suitable for developing electrostatic images is produced through a process comprising: dispersing a monomer composition comprising at least a polymerizable monomer and a colorant in an aqueous medium heated at a temperature higher than a polymerization temperature, thereby to form particles of the monomer composition; adjusting the aqueous medium to the polymerization temperature; and adding a substantially water-insoluble polymerization initiator to the aqueous medium containing the particles of the monomer composition dispersed therein and adjusted to the polymerization temperature, thereby to cause the polymerization of the polymerizable monomer. According to this process, a toner containing a large amount of a low-softening point compound and having good fixability at low pressure and/or low temperature can be produced while retaining good anti-blocking characteristic and fluidity.

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patent: 4609607 (1986-09-01), Takagi
patent: 4656113 (1987-09-01), Ohshima et al.

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