Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Process of making developer composition
Patent
1995-06-05
1996-05-14
Yoon, Tae
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Process of making developer composition
430108, 430111, 252511, 252513, 252518, G03G 500, G03G 900, H01B 106
Patent
active
055166199
ABSTRACT:
A process for the preparation of conductive submicron polymeric particles which comprises mixing at least one monomer with a polymerization initiator, a crosslinking component, and a chain transfer component; adding thereto an AB type block copolymer; effecting bulk polymerization until from about 10 to about 50 weight percent of the monomer has been polymerized; terminating polymerization by cooling the partially polymerized monomer; adding thereto from about 1 to about 50 weight percent of a conductive filler, or conductive fillers, followed by mixing thereof; dispersing the aforementioned mixture of conductive filler or fillers, and partially polymerized product in water containing a stabilizing component to obtain a suspension of particles with an average diameter of from about 0.05 to about 1 micron in water; polymerizing the resulting suspension by heating; and subsequently optionally washing and drying the product.
REFERENCES:
patent: 5141835 (1992-08-01), Kato et al.
patent: 5236629 (1993-08-01), Mahabadi et al.
patent: 5409795 (1995-04-01), Kato
Creatura John A.
Cunningham Michael F.
Mahabadi Hadi K.
Smith Thomas W.
Palazzo E. O.
Xerox Corporation
Yoon Tae
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