Method of making an asphalt composition containing ester bottoms
AssigneeMarathon Petroleum Company LP
InventorsStormy Brewster, Stephen J. Jones, Dennis Keppers
Life of this patent
Estimating the term…
Abstract
This invention involves the addition of ester bottoms to an asphalt paving composition to improve the usable temperature range (UTR). The ester bottoms are a byproduct of refining a feedstock containing all or a portion of vegetable oil or animal fat.
Claims26
A method of making paving asphalt comprising:
- adding 0.1 wt % to 20 wt % ester bottoms to an asphalt mixture wherein the ester bottoms are a byproduct of methyl ester refining;
- and
- adding 0-20 wt % of a polymer modifier to the ester bottoms and asphalt mixture.
A method of making a paving asphalt comprising adding ester bottoms to an asphalt mixture to increase the useable temperature range of the paving asphalt, wherein the ester bottoms are a byproduct of methyl ester refining.
A method of making a paving asphalt comprising adding ester bottoms to an asphalt mixture to meet a predetermined useable temperature range, wherein the ester bottoms are a byproduct of methyl ester refining.
A modified asphalt composition comprising:
- 50 wt % to about 99.9 wt % of an asphalt;
- 0 wt % to about 20 wt % of an asphalt-modifying polymer;
- and
- 0.1 wt % to about 50 wt % of ester bottoms, the ester bottoms being defined as distillation bottoms of distilled reaction products from reaction of methanol and dry oil that have settled glycerin removed therefrom prior to distillation.
A modified asphalt composition comprising:
- 50 wt % to about 99.9 wt % of an asphalt;
- 0 wt % to about 20 wt % of a polymer modifier;
- and
- 0.1 wt % to about 50 wt % of ester bottoms, the ester bottoms being defined as distillation bottoms of a water-washed reaction product between methanol and dry oil from which settled glycerin is removed from the water-washed reaction product prior to distillation, the dry oil containing one or more of a vegetable oil or an animal fat that has been dried to remove at least some moisture therefrom.
A modified asphalt composition comprising:
- 50 wt % to about 99.9 wt % of an asphalt;
- 0 wt % to about 20 wt % of an asphalt modifier selected from the group consisting of a polymer, a resin, polyphosphoric acid, gilsonite, lignin and crumb rubber;
- and
- 0.1 wt % to about 50 wt % of ester bottoms, the ester bottoms being defined as distillation bottoms of a water-washed methyl ester reaction product between reagents methanol and at least one of vegetable oil or animal fat from which glycerin is settled and removed from the methyl ester reaction product prior to distillation.
Dependencies are inferred from the claim text.