Environmentally improved asphalt compositions and their preparation
AssigneeMarathon Ashland Petroleum LLC
InventorsRoger E. Hayner, Patricia K. Doolin, James F. Hoffman, Robert H. Wombles
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Abstract
An environmentally improved asphalt paving composition which contains a solvent-precipitated asphaltene, such as solvent deasphalting bottoms, and a viscosity reducing amount of paraffinic fluxing component, e.g., 325 Neutral Oil.
Claims20
An environmentally improved asphalt paving composition which contains a solvent-precipitated asphaltene and a viscosity reducing amount of paraffinic fluxing component.
A pavement composition containing aggregate and 1 to 10 wt. % of an environmentally improved asphalt paving composition which comprises 1 to 90 wt. % of asphalt component containing, as a proportion of said asphalt component, at least 0.5 wt. %, solvent precipitated asphaltenes;
- 0.1 to 50 wt. % of a paraffinic fluxing component;
- and 0 to 15 wt. % aromatics having a 5% distillation boiling point of less than 510.degree. C.
A method for preparing an environmentally proved paving asphalt composition containing an asphalt component containing solvent-precipitated asphaltene by adding a viscosity reducing amount of paraffinic fluxing component to said asphalt component.
Dependencies are inferred from the claim text.