Emulsion aggregation polyester toners

Details Emulsion aggregation polyester toners Emulsion aggregation polyester toners

2006-11-06

2010-12-28

Le, Hoa V (Department: 1795)

Radiation imagery chemistry: process, composition, or product th

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

Process of making developer composition

C430S137160

Reexamination Certificate

active

07858285

ABSTRACT:
An emulsion aggregation toner including an amorphous resin and a crystalline resin, wherein the toner has an acid value of from about 16 mg/eq. KOH to about 40 mg/eq. KOH and a relative humidity sensitivity ratio of from about 1 to about 2, and wherein the crystalline resin has a melting point of at least about 60° C. The process for forming particles including generating an emulsion of a polyester resin having an acid value of from about 16 mg/eq. KOH to about 40 mg/eq. KOH and generating aggregate particles from the emulsion. Increased charge maintainability and resistivity of the toner result, thereby generating high print quality and high gloss, and provide stable xerographic charging in all ambient environments.

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Office Action in Canadian Patent Application No. 2,608,804, mailed Aug. 10, 2010.
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