Conoco Inc.

Conocophillips Company

Phillips 66 Company

W Mark Southard

Zhenhua Mao

H Ernest Romine

Edward J Nanni

Mark W Carel

John A Rodgers

Richard L Jones

Robert A Krenowicz

Bharat S Chahar

Michael R Mitchael

A solvating component for a solvated mesophase pitch. The solvated component includes a mixture of aromatic hydrocarbons having boiling points in the atmospheric equivalent boiling point range of about 285&deg; to about 500&deg; C. (about 550&deg; F.-932&deg; F.). At least 80% of the carbon atoms of the hydrocarbons are aromatic as characterized by carbon 13 NMR. The aromatic hydrocarbons are selected from a group consisting of aromatic compounds having 2 to 5 aromatic rings, substituted aromatic compounds having 2 to 5 aromatic rings wherein said substituents are alkyl groups having 1 to 3 carbons, hydroaromatic compounds having 2 to 5 rings, substituted aromatic compounds having 2 to 5 rings wherein said substituents are alkyl groups having 1 to 3 carbons, and mixtures thereof.

Solvating component and solvent system for mesophase pitch

This invention provides a process for preparing a solvated isotropic pitch having a fluid temperature at least 40.degree. C. lower than the same pitch in the non-solvated state. Additionally, the present invention provides a solvated isotropic pitch which may be formed into carbon artifacts which do not require oxidative stabilization prior to carbonization.

Self-stabilizing pitch for carbon fiber manufacture

The present invention provides a process for obtaining a very clean mesophase pitch from isotropic pitch. This invention utilizes a solvent fractionation process which does not involve the process steps, yield loss and waste generation associated with fluxing and filtering the isotropic pitch. Additionally, this invention provides a liquid/liquid extraction process that avoids the solids handling and the high temperatures and pressures of supercritical fluid extraction. Finally, this invention controls the hardness of the mesophase product.

Process for isolating mesophase pitch

This invention relates to a process for producing mesophase pitch in high yields. The process of the invention comprises isolating a heavy fraction of a heat soaked pitch by a solvent extraction, heat soaking the isolated heavy fraction to increase the size and number of larger heavy aromatics, and isolating the larger heavy aromatics by solvent extraction to obtain a larger heavy aromatic solvated mesophase pitch.

Process for making solvated mesophase pitch

Heavy intermediate petroleum wax is separated into two fractions in a wiped film evaporator to provide a lower boiling fraction of narrow melting range particularly suitable for use in hot melt adhesive formulations.

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Ponca City, OK, United States of America

W Mark Southard