Basf Corporation

Thomas E Foye

Edward K Sasamoto

Louis J Pepoy

Reinhard J Sappok

Joseph P Baillargeon

Sherwin P Malchick

An ink is produced without flushing by forming both an emulsion of a selected organic liquid and water and an aqueous suspension of a pigment. The emulsion and the pigment are then mixed together, whereby the pigment is phase-transferred from the aqueous phase to the non-aqueous phase, and whereby a mixture is formed. The mixture is concentrated (e.g. via filtration) and added to an ink mixing tank where the remaining water is removed by evaporation and wherein the remaining ingredients are added so that the ink is produced.

Pigment product

An oil-soluble viscosity-reducing additive made by combining an amine and a polybasic organic acid permits the incorporation of large proportions of pigment into pigment dispersions. The increased proportion of pigment provides advantages in the manfacture of inks.

Low viscosity, highly concentrated pigment dispersions and method of

A lithographic ink has an oil-soluble additive incorporated thereinto, the additive producing beneficial effects, especially with respect to reducing the pH drift of the ink during use. The additive is produced by combining a primary, secondary, tertiary, or quaternary amine with a polybasic organic acid.

Lithographic ink composition and process for making same

A method of producing a pigment-hydrophobic organic vehicle product which comprises:

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Holland, MI, United States of America

Thomas E Foye