Abstract: In one aspect an apparatus for use in an electrographic printer includes a tray defining a cavity, the tray having an internal surface, and an ink developer electrode disposed in the cavity for developing an ink. There is a first layer disposed on the internal surface, the first layer including a dielectric material, and a second layer disposed on the first layer, the second layer adhering to the first layer and being resistant to the adhesion of ink. In another aspect manufacturing such apparatus includes applying respective polymer precursor compositions to form the two layers and crosslinking the second polymer composition.

Abstract: In one aspect an apparatus (200) for use in an electrographic printer includes a tray (260) defining a cavity (262), the tray having an internal surface, and an ink developer electrode (250) disposed in the cavity for developing an ink. There is a first layer (264) disposed on the internal surface, the first layer comprising a dielectric material, and a second layer (266) disposed on the first layer, the second layer adhering to the first layer and being resistant to the adhesion of ink. In another aspect manufacturing such apparatus comprises applying respective polymer precursor compositions to form the two layers and crosslinking the second polymer composition.

Abstract: An electrocatalyst for an electrode comprises (i) an electrically conductive particulate support comprising one or more electrocatalytically active metals and (ii) an electrically conductive material which is substantially free of electrocatalytically active metals and has an electroconductivity which is higher than the electroconductivity of (i). This Abstract is not intended to define the invention disclosed in the specification, nor intended to limit the scope of the invention in any way.

Abstract: The composition includes a chlorinated polyolefin grafted by an amino-silane to enable it to be cured in air. The composition contains a basic mixture including, for 100 parts by weight of said chlorinated polyolefin, 100 to 250 parts of a filler containing moisture and an agent for treating said filler, and said amino-silane is grafted to said chlorinated polyolefin of said basic mixture during extrusion of the composition. The composition is useful in insulating and sheathing cables.