Electro-statographic toner material

Details Electro-statographic toner material Electro-statographic toner material

1990-02-20

1990-12-11

Welsh, J. David

Radiation imagery chemistry: process, composition, or product th

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

Radiation-sensitive composition or product

430120, 430137, 430138, 430111, G03G 1320, G03G 1100

Patent

active

049770527

ABSTRACT:
An electrostatographic toner material suitably employable for the pressure fixing process, which comprises encapsulated toner particles having an average particle size in the range from about 0.5 to 1,000 microns, in which the toner particle comprises a pressure fixable adhesive core material containing a colorant and a pressure rupturable shell enclosing the core material, said shell being made of a polymer selected from the group consisting of polyurethane, polyurea and polythiourethane.
A process preferably employable for the preparation of the toner material is also disclosed.

REFERENCES:
patent: 3516941 (1970-06-01), Matson
patent: 3788994 (1974-01-01), Wellman et al.
patent: 3893932 (1975-07-01), Azar et al.
patent: 3893933 (1975-07-01), Brown
patent: 3924019 (1975-12-01), Jacob
patent: 4007293 (1977-02-01), Mincer et al.
patent: 4097404 (1978-06-01), Brown
patent: 4265994 (1981-05-01), Hasegawa et al.
patent: 4368250 (1983-01-01), Cooper et al.
patent: 4447516 (1984-05-01), Matkan
Modern Plastics Encyclopedia, 1977-1978, vol. 54, No. 10A, pp. 14-21 and 86-98.

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