Toner particles of controlled morphology
First Claim
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1. A method for the preparation of electrostatographic toner comprising the steps of:
- a) dissolving a polymer material in an organic solvent to form an organic phase, where the organic phase further includes a shape control agent comprising a metal complex selected from the group consisting of zinc dimethyldithiocarbamate;
zinc diethyldithiocarbamate;
zinc dibenzyldithiocarbamate, and zinc di-n-butyldithiocarbamate;
b) dispersing the organic phase in an aqueous phase comprising a particulate stabilizer to form a dispersion and homogenizing the resultant dispersion;
c) evaporating the organic solvent and recovering a resultant product having a shape modified by the shape control agent; and
d) washing and drying the resultant product.
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Abstract
The present invention is a method for the preparation of electrostatographic toner that includes the following steps. A polymer material is dissolved in an organic solvent to form an organic phase that includes a metal complex of zinc dimethyldithiocarbamate; zinc diethyldithiocarbamate; dibenzyldithiocarbamate, zinc di-n-butyldithiocarbamate. The organic phase is dispersed in an aqueous phase that includes a particulate stabilizer to form a dispersion and the resultant dispersion is homogenized. The organic solvent is evaporated and the resultant product is recovered, washed and dried.
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Citations
14 Claims
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1. A method for the preparation of electrostatographic toner comprising the steps of:
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a) dissolving a polymer material in an organic solvent to form an organic phase, where the organic phase further includes a shape control agent comprising a metal complex selected from the group consisting of zinc dimethyldithiocarbamate;
zinc diethyldithiocarbamate;
zinc dibenzyldithiocarbamate, and zinc di-n-butyldithiocarbamate;b) dispersing the organic phase in an aqueous phase comprising a particulate stabilizer to form a dispersion and homogenizing the resultant dispersion; c) evaporating the organic solvent and recovering a resultant product having a shape modified by the shape control agent; and d) washing and drying the resultant product. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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Specification