Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Process of making developer composition
Reexamination Certificate
2011-06-14
2011-06-14
Dote, Janis L (Department: 1721)
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Process of making developer composition
C430S108220
Reexamination Certificate
active
07960085
ABSTRACT:
A method for producing a positively chargeable toner is described. The method for producing a positively chargeable toner may include the steps of: mixing and emulsifying a charge-controlling resin having a positive polar group, an organic solvent and an aqueous medium to form an emulsion, and then removing the organic solvent from the emulsion, to thereby form a suspension of the charge-controlling resin having a positive polar group in the range of 5.0×10−5to 6.0×10−4mol/g; mixing the suspension of the charge-controlling agent with a suspension of toner base particles containing a binder resin and a colorant, to thereby form a mixture; and heating the mixture containing the suspension of the toner base particles and the suspension of the charge-controlling resin, to thereby fix the charge-controlling resin on the surfaces of the toner base particles.
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JP Office Action dtd Nov. 13, 2008, JP Appln. 2007-022048.
Ikami Jun
Kawamura Masateru
Banner & Witcoff , Ltd.
Brother Kogyo Kabushiki Kaisha
Dote Janis L
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