Abstract: For use in trickle bed electrolytic cells, the preferred and illustrated embodiment sets forth an improved graphite composite chip. It is a chip characterized by having a much higher percentage with a more uniform coating thereon. The coating has the form of a mix of carbon and Teflon on graphite chips. It is more uniform and applied to both sides of the chips. This improves current flow and distribution in an electrolytic cell such as a hydrogen peroxide cell. One procedure taught herein is a method of making such composite chips on graphite wherein carbon in particulate form is mixed with water and particulate Teflon dispersion and is added to graphite chips of a selected mesh size; after mixing, the water is drained and all water is removed by a vacuum in a rotary evaporator whereupon the dried material is then sintered for a specified time and temperature.

Abstract: Tertiary alkyl peroxyesters of pyromellitic acid such as tetra-tert-butylperoxy pyromellitate are conveniently prepared by reacting the tertiary alkyl hydroperoxide with the acid chloride at about ambient temperature. The peroxyesters are useful initiators of ethylenic polymerization to produce polymers of relatively high molecular weight and broad molecular weight distribution.