Paving asphalt
Petroleum base pitch having high aromaticity and process for...
Petroleum pitch preparation
Petroleum residuum processing
Petroleum resins
Phenol tar desalting method
Pitch demetalization by destruction distillation
Pitch for carbon fibers
Pitch for direct spinning into carbon fibers derived from a...
Pitch for direct spinning into carbon fibers derived from a...
Pitch suitable for impregnating pipes
Pitch treatment process for carbon artifact manufacture
Plasticized pitch composition
Polar solvent - asphaltene dispersant method for upgrading...
Polarity gradient extraction method
Porous pipe impregnation
Post-treatment of spinnable precursors from petroleum pitch
Pourable bitumen granulate
Pre-aggregate drying method and energy efficient asphalt plant
Pre-combustion mix drum