Abstract: A process for producing binderless, single phase bulk carbon or graphite articles having a fibrillar microstructure comprising the steps of assembling a plurality of polymer fibers into a preselected pattern, subjecting them to a temperature and pressure sufficient to cause heat distortion flow and concomitant self-bonding of contiguous fibers and pyrolyzing the fibers in a nonoxidizing atmosphere.

Abstract: An improved method for synthesizing a hydrocarbon soluble (RCOO).sub.3 Cr chromium compound is described. The disclosed method employs a two-step reaction scheme utilizing a nonhalogenated chromium compound such as chromic acid anhydride as a starting material. In the first step the chromium source is reduced with an alcohol in the presence of a fatty acid to Cr.sup.+3. The synthesis is completed by converting the reduced chromium to the tri-substituted compound by reaction with a fatty acid in the presence of a base. The chromium containing product has particular utility as a corrosion inhibiting fuel soluble additive.

Abstract: The invention relates to novel silicon compoundsformed by the reaction of a lactone and an aminoalkyl silane or siloxane. These materials are useful to enhance adhesion of various resins to inorganic substrates.

Abstract: Porous carbon sheets suitable for use as fuel cell electrode support plates are produced by stabilizing acrylic filament precursors through the controlled addition of oxygen thereto. The stabilized filaments are thereafter chopped into short lengths, felted and pressed into sheets with the pressing step being performed at a temperature determined by the oxygen content of the stabilized filaments. The sheets are thereafter pyrolyzed to produce the desired porous substrate material.

Abstract: Porous carbon sheets suitable for use as fuel cell electrode support plates are produced from inexpensive carbonizable filaments. The filaments are chopped into short lengths, felted, sprayed with a binder and the binder is cured whereby sheets are defined. The sheets are thereafter pyrolyzed to convert both the binder and filaments to carbon and to thereby produce the desired porous substrate material.

Abstract: A process for producing continuous filaments from polyamic acid suitable for conversion to polyimide filaments comprising providing a starting solution consisting essentially of equimolar amounts of P,P-diaminophenyl ether and bis-(3,4-dicarboxyphenyl) sulfone dianhydride, the remainder a solvent selected from the group consisting of dimethylformamide, methyl pyrrolidone and mixtures thereof, said starting solution having a viscosity ranging from 500 to 5,000 centipoises preferably 1,500 to 3,000 centipoises, and forming the starting solution into filaments by extruding it in a coagulating bath consisting essentially of a liquid selected from the group consisting of propanol, methyl alcohol, ethyl alcohol, butyl alcohol, a mixture of ethyl alcohol and propanol and a mixture of methyl alcohol and acetone.