Capsule toner

Details Capsule toner Capsule toner

1992-12-15

1994-08-02

Goodrow, John

Radiation imagery chemistry: process, composition, or product th

Microcapsule, process, composition, or product

430110, G03G 9093

Patent

active

053344804

ABSTRACT:
A capsule toner comprising a core covered with an outer shell, the outer shell comprising a substance capable of forming a radical, a polymer comprising at least a unit derived from a quaternary ammonium salt-containing vinyl monomer represented by formula (I) being deposited on the surface of the outer shell, and basic carbon black being externally added to the capsule toner: ##STR1## wherein R.sub.1 represents a hydrogen atom or a methyl group; R.sub.2, R.sub.3, and R.sub.4 each represents a hydrogen atom, an alkyl group having 1 to 5 carbon atoms or a benzyl group; Y represents --COO--, --CONH-- or a phenylene group; n represents an integer of from 1 to 7; and X.sup.- represents a halogen ion or an anion having a --COO.sup.- group or an --SO.sub.3.sup.- group.

REFERENCES:
patent: 4621039 (1986-11-01), Ciccarelli et al.
patent: 4840863 (1989-06-01), Otsu et al.
patent: 5215851 (1993-06-01), Tomita et al.
Inchalik, E. J. and G. Rubin, "Plasticizers", 1975-1976 Modern Plastics Encyclopedia, pp. 226-228 and pp. 692-702.

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