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US 8,784,554 B2Granted
Asphalt modifiers, methods of modifying asphalt, asphalt compositions and methods of making
OwnerPremnathan Naidoo, Patrick Keatinginventors
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Abstract
Asphalt compositions and products comprising petroleum asphalt, polyolefin, and a wax.
Claims22
An asphalt comprising
- a first component comprising a petroleum asphalt;
- and,
- a second component comprising particles formed from a melted mixture of a polyolefin resin and a binder;
- wherein, the second component is dispersed within the first component;
- wherein the polyolefin resin is selected from the group consisting of polypropylene homopolymer resin;
- and
- wherein the binder is selected from the group consisting of polyethylene by-product waxes, petroleum micro waxes, Fischer-Tropsch hard wax, gilsonite, a terpolymer, and montan waxes.
4 more elements
A method of treating a petroleum asphalt, the method comprising,
- contacting a petroleum asphalt with particles formed from a melted mixture of a polyolefin resin component and a binder component to form a treated asphalt,
- wherein the polyolefin resin is selected from the group consisting of polypropylene homopolymer resin;
- and,
- wherein the binder is selected from the group consisting of polyethylene by-product waxes, petroleum micro waxes, Fischer-Tropsch hard wax, gilsonite, a terpolymer, and montan waxes.
1 more element
An asphalt comprising
- a first component comprising a petroleum asphalt;
- a second component dispersed in the asphalt comprising particles formed from a melted mixture of a polyolefin resin and a binder;
- and,
- a third component dispersed in the asphalt selected from the group consisting of ground tire rubber and polymers of styrene and butadiene,
- wherein the polyolefin resin is selected from the group consisting of polypropylene homopolymer resin;
- and,
- wherein the binder is selected from the group consisting of polyethylene by-product waxes, petroleum micro waxes, Fischer-Tropsch hard wax, gilsonite, a terpolymer, and montan waxes.
4 more elements
A method of modifying a petroleum asphalt, the method comprising:
- combining the petroleum asphalt with a first component and a second component, wherein the first component comprises particles formed from a melted mixture of a polyolefin resin and a binder;
- and, the second component is selected from the group consisting of ground tire rubber and polymers of styrene and butadiene,
- wherein the polyolefin resin is selected from the group consisting of polypropylene homopolymer resin;
- and,
- wherein the binder is selected from the group consisting of polyethylene by-product waxes, petroleum micro waxes, Fischer-Tropsch hard wax, gilsonite, a terpolymer, and montan waxes.
2 more elements
Dependencies are inferred from the claim text.