Manufacture of a charge director
AssigneeHP Indigo B.V.
InventorsHanit Marom Tchaicheeyan, Eyal Bachar, Julia Kornilov, Albert Teishev
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Abstract
Herein is described a method for the manufacture of a charge director comprising a barium salt. The method comprises reacting barium alkoxide with an acid in a reaction medium comprising ethanol, and separating ethanol from the reaction mixture to recover the barium salt produced.
Claims15
A method for the manufacture of a charge director comprising a barium salt, said method comprising:
- reacting barium alkoxide with an acid in a reaction medium comprising ethanol, and
- separating ethanol from the reaction mixture to recover the barium salt produced.
A method as claimed in any one of the preceding claims, wherein the reaction between barium alkoxide with an acid occurs in the substantial absence of methanol.
A method as claimed in any one of the preceding claims, wherein the acid is selected from at least one of a sulfosuccinic acid alkyl ester and phosphoric acid.
A method as claimed in any one of the preceding claims, wherein the barium salt produced is recovered by distillation of the ethanol.
A method as claimed in any one of the preceding claims, which comprises using the barium salt produced in a liquid electrophotographic ink or varnish composition.
Dependencies are inferred from the claim text.