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US 2015/0105495 A1Published application
Polymeric asphalt modifiers, methods of modifying asphalt, asphalt compositions and methods of making
AssigneeRheopave Technologies, LLC
InventorsPremnathan NAIDOO, Vernon Patrick KEATING
Life of this patent
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Abstract
An asphalt additive comprising a primary rheology modifying component and a secondary rheology modifying component, and asphalt compositions and products having such additive incorporated therein. The primary rheology modifying component is generally a polymer, and the secondary rheology modifying component may comprise a petroleum micro-wax.
Claims40
An asphalt comprising:
- a first component comprising a petroleum asphalt;
- and,
- a second component comprising particles formed from a melted mixture of a resin and a binder;
- wherein, the second component is dispersed within the first component;
- wherein the resin is selected from the group consisting ethylene vinyl acetate;
- polystyrene;
- styrene butadiene block copolymer;
- styrene ethylene butylene styrene;
- natural rubber, synthetic rubber;
- styrene-butadiene rubbers;
- and,
- wherein the binder is selected from the group consisting of polyethylene by-product waxes, petroleum micro waxes, Fischer-Tropsch hard wax, Trinidad Lake asphalt (TLA), gilsonite, terpolymer, and montan waxes.
9 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 resin component and a binder component to form a treated asphalt,
- wherein the resin is selected from the group consisting ethylene vinyl acetate;
- polystyrene;
- styrene butadiene block copolymer;
- styrene ethylene butylene styrene;
- natural rubber, synthetic rubber;
- styrene-butadiene rubbers;
- and,
- wherein the binder is selected from the group consisting of polyethylene by-product waxes, petroleum micro waxes, Fischer-Tropsch hard wax, Trinidad Lake asphalt (TLA), gilsonite, terpolymer, and montan waxes.
6 more elements
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 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 resin is selected from the group consisting of ethylene vinyl acetate;
- polystyrene;
- styrene butadiene block copolymer;
- styrene ethylene butylene styrene;
- natural rubber, synthetic rubber;
- styrene-butadiene rubbers;
- and,
- wherein the binder is selected from the group consisting of polyethylene by-product waxes, petroleum micro waxes, Fischer-Tropsch hard wax, Trinidad Lake asphalt (TLA), gilsonite, terpolymer, and montan waxes.
9 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 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 resin is selected from the group consisting of ethylene vinyl acetate;
- polystyrene;
- styrene butadiene block copolymer;
- styrene ethylene butylene styrene;
- natural rubber, synthetic rubber;
- styrene-butadiene rubbers;
- and,
- wherein the binder is selected from the group consisting of polyethylene by-product waxes, petroleum micro waxes, Fischer-Tropsch hard wax, Trinidad Lake asphalt (TLA), gilsonite, terpolymer, and montan waxes.
7 more elements
Dependencies are inferred from the claim text.