Abstract: Herein is described a liquid electrostatic ink composition comprising a pigment comprising mica coated with titanium dioxide and an additional metal oxide.

Abstract: Provided in one example herein is a liquid electrophotographic ink composition. The composition comprises: a carrier fluid comprising a polymer; ink particles each comprising a non-aqueous polymeric resin and pigment particles distributed in the polymeric resin; and a charge director. The pigment particles comprise a metal oxide and have a hydrophobic surface. The hydrophobic surface comprises at least one of the following: (i) nanoparticles attached to each of the pigment particles, the nanoparticles comprising at least one of an oxide, a phosphate, and a nitrate; (ii) a coating disposed over each of the pigment particles, the coating comprising at least one of an oxide, a phosphate, and a nitrate; and (iii) a coating disposed over each of the pigment particles, the coating comprising at least one of a polymer and an oligomer.

Abstract: Disclosed are an enzymatic batchwise or continuous process for the production of fatty acid alkyl esters for use in the biofuels, food and detergent industries and a system therefor. The process utilizes enzymes immobilized on a hydrophobic resin mixed with a fatty acid source and an alcohol or alcohol donor in the presence of an alkaline or mild alkaline aqueous buffer, or in the presence of water or aqueous solution. The production process for fatty acid alkyl esters is carried out by transesterification or esterification simultaneously or sequentially. The biocatalyst activity is maintained with no significant activity losses in multiple uses and also avoids the accumulation of glycerol and water by-products or other hydrophilic compounds on the biocatalyst.

Abstract: Herein is disclosed an electrostatic ink composition. In some examples, the electrostatic ink compositions comprise: a carrier liquid; a first resin; and a fluorescent pigment.

Abstract: Herein is disclosed an electrostatic ink composition. In some examples, the electrostatic ink compositions comprise: a carrier liquid; a resin; and a phosphorescent pigment.

Abstract: Herein is disclosed an electrostatic ink composition comprising: a) chargeable particles comprising a resin; b) a charge director comprising a sulfosuccinate salt of the general formula M?Am, wherein M? is a metal, m is the valence of M?, and A is an ion of the general formula (I): (I) [R3—O—C(O)CH2CH(SO3)C(O)—O—R4]? wherein each of R3 and R4 is an alkyl group; and c) an optionally substituted naphthalene-sulfonate moiety. Also disclosed is a method of manufacturing an electrostatic ink composition and a printed medium having printed thereon an electrostatic ink composition.

Abstract: Methods of Printing and Electrostatic Ink Compositions Herein are disclosed electrostatic ink compositions, methods of printing and printed substrates. In some examples, the electrostatic ink composition comprises a carrier liquid, particles comprising a graft co-polymer comprising an acrylate polymer backbone onto which has been grafted polysiloxane side chains, wherein the particles are dispersed in the carrier liquid.

Abstract: Herein is disclosed an electrostatic ink composition comprising: a) chargeable particles comprising a resin; b) a charge director comprising a sulfosuccinate salt of the general formula M?Am, wherein M? is a metal, m is the valence of M?, and A is an ion of the general formula (I): (I) [R3—O—C(O)CH2CH(SO3)C(O)—O—R4]? wherein each of R3 and R4 is an alkyl group; and c) an optionally substituted naphthalene-sulfonate moiety. Also disclosed is a method of manufacturing an electrostatic ink composition and a printed medium having printed thereon an electrostatic ink composition.

Abstract: Disclosed is an electrostatic ink composition, comprising a single charge director and a charge control agent that counters the build up of negative optical density memory on the intermediate transfer member of a printing apparatus using the electrostatic ink.

Abstract: Methods of Printing and Electrostatic Ink Compositions Herein are disclosed electrostatic ink compositions, methods of printing and printed substrates. In some examples, the electrostatic ink composition comprises a carrier liquid, particles comprising a graft co-polymer comprising an acrylate polymer backbone onto which has been grafted polysiloxane side chains, wherein the particles are dispersed in the carrier liquid.

Abstract: Disclosed is an electrostatic ink composition, comprising a single charge director and a charge control agent that counters the build up of negative optical density memory on the intermediate transfer member of a printing apparatus using the electrostatic ink.

Abstract: Disclosed are an enzymatic batchwise or continuous process for the production of fatty acid alkyl esters for use in the biofuels, food and detergent industries and a system therefor. The process utilizes enzymes immobilized on a hydrophobic resin mixed with a fatty acid source and an alcohol or alcohol donor in the presence of an alkaline or mild alkaline aqueous buffer, or in the presence of water or aqueous solution. The production process for fatty acid alkyl esters is carried out by transesterification or esterification simultaneously or sequentially. The biocatalyst activity is maintained with no significant activity losses in multiple uses and also avoids the accumulation of glycerol and water by-products or other hydrophilic compounds on the biocatalyst.