Methods and systems for modifying asphalts

Methods and systems for modifying asphalts

Modified coal-tar pitch

Nitro-substituted pitch and process for the production thereof

Oil adsorbent and process for preparation thereof

Optically anisotropic carbonaceous pitch

Optically anisotropic carbonaceous pitch and process for produci

Optically anisotropic pitch

Optically antisotropic carbonaceous pitch

Oxygenated pitch and processing same

Petroleum hydrocarbon binder with reduced polycyclic...

Pitch as a raw material for making carbon fibers and process for

Pitch for carbon fibers

Pitch for direct spinning into carbon fibers

Pitch for direct spinning into carbon fibers derived from a coal

Pitch for direct spinning into carbon fibers derived from a stea

Pitch for production of carbon fibers

Pitch material for carbonaceous body and a method for the prepar

Pour-point depression of crude oils by addition of tar sand bitu

Preparation and treating of bituminous compositions