Electrostatic latent image developing toner and method for produ

Details Electrostatic latent image developing toner and method for produ Electrostatic latent image developing toner and method for produ

1989-01-26

1990-12-25

Martin, Roland E.

Radiation imagery chemistry: process, composition, or product th

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

Post imaging process, finishing, or perfecting composition...

430109, 430138, 428407, G03G 9093

Patent

active

049802577

ABSTRACT:
In an electrostatic latent image developing toner which comprises spherical core particles composed of at least a coloring agent and a thermoplastic resin and an outer shell layer containing at least a thermoplastic resin and applied in the form of a coating fast to the core particles, the outer shell layer applied in the form of a coating is formed by (a) thermally fixing minute particles of one thermoplastic resin and minute particles of another thermoplastic resin on the surface of the core particles thereby enabling part of the aforementioned other thermoplastic resin to retain the original particulate form thereof intact in the produced coating or (b) thermally fixing minute particles of a thermoplastic resin and minute particles of a thermosetting resin or minute particles of a resin possessing a gelling component in a specific amount on the surface of the core particles thereby enabling the minute particles of the resin to retain the original particulate form thereon intact in the produced coating and impart a minutely rugged surface to the coating.

REFERENCES:
patent: 4336173 (1982-06-01), Ugelstad
patent: 4459378 (1984-07-01), Ugelstad
patent: 4601967 (1986-07-01), Suzuki et al.
patent: 4803144 (1989-02-01), Hosoi

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