TONER PROCESSES

A process comprised of heating a mixture of a colorant dispersion, a latex emulsion, and an optional wax dispersion in the presence of a coagulant containing a metal ion, a base, and an organic sequestering agent, and wherein said heating involves a first heating and a second heating, and wherein th...

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Bibliographic Details
Main Authors HOPPER, MICHAEL A, PATEL, RAJ D
Format Patent
LanguageEnglish
French
Published 29.07.2008
Subjects
AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G
CHEMISTRY
CINEMATOGRAPHY
COMPOSITIONS BASED THEREON
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
ELECTROGRAPHY
ELECTROPHOTOGRAPHY
GENERAL PROCESSES OF COMPOUNDING
HOLOGRAPHY
MAGNETOGRAPHY
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
PHOTOGRAPHY
PHYSICS
THEIR PREPARATION OR CHEMICAL WORKING-UP
WORKING-UP
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Summary:A process comprised of heating a mixture of a colorant dispersion, a latex emulsion, and an optional wax dispersion in the presence of a coagulant containing a metal ion, a base, and an organic sequestering agent, and wherein said heating involves a first heating and a second heating, and wherein the second heating is at a higher temperature than the first heating; and wherein said higher temperature is equal to about or above about the Tg of polymer or resin contained in said latex emulsion. Procédé consistant à chauffer un mélange d'une dispersion de colorant, d'une émulsion de latex et, de manière facultative, d'une dispersion de cire en présence d'un coagulant contenant un ion métallique, un agent séquestrant organique; le procédé de chauffage comporte une première étape de chauffage et une seconde étape de chauffage, la seconde à une température plus élevée que la première, et la température de la seconde étape étant égale ou supérieure à environ la Tg du polymère ou de la résine contenu dans l'émulsion de latex.
Bibliography:Application Number: CA20042471077