Abstract: A liquid composition suitable as a high performance fuel and having improved rheological and stability properties comprising a liquid hydrocarbon having carbon particles dispersed therein of at least two disparate particle sizes, said two carbon particles being (1) a semi-reinforcing black having an average particle diameter of about 60 to about 100 mu and (2) a high abrasion furnace black having an average particle diameter of about 20 to about 50 mu.

Abstract: A liquid composition suitable as a high performance fuel and having improved rheological and stability properties comprising a liquid hydrocarbon having carbon particles dispersed therein of at least two disparate particle sizes, one of said carbon particles having an average particle diameter of from about 300 to about 350 mu and the other particle having an average particle diameter of about 60 to about 80 mu.

Abstract: A liquid composition suitable as a high performance fuel and having improved rheological and stability properties comprising a liquid hydrocarbon having carbon particles dispersed therein of at least two disparate particle sizes, one of said carbon particles having an average particle diameter of from about 300 to about 350 mu and the other particle having an average particle diameter of about 20 to about 50 mu, the carbon particles of the smaller size black being present in an amount between about 20 and about 25 weight percent of the total black percent.

Abstract: Coal and other solid fossil fuels are subjected to supercritical gaseous extraction by heating a mixture of particulate coal and a solvent mixture of tetralin and xylene at supercritical temperature whereby high extractive yield is obtained and the residual solid material is easily separated from the liquid product.

Abstract: Novel copolymer formed by melt blending a melt spinnable polyamide, such as nylon-6, and a block of random poly(dioxa-amide), such as a copolymer prepared from the mixture of caprolactam and the salt of adipic acid and 4,7-dioxadecamethylene diamine, is disclosed. The resulting copolymer, N-30203-6/6//6, has utility as a fiber. The fiber, for example, resulting from melt blending of nylon-6 and the aforementioned random poly(dioxa-amide) has moisture absorption characteristics similar to that of cotton. Furthermore, the resulting fiber still maintains the other desirable properties of the major constituent, for example, nylon-6.

Abstract: Process is disclosed for preparing solid thermoplastic polymer fibrilla or fibril having a length which makes either useful for mixing with cellulosic pulp. Process involves forming a two phase mixture of polymer and solvent wherein one phase is a polymer-rich phase and the other is a solvent-rich phase. Said mixture is discharged through a suitable nozzle in laminar flow.