# US 8,784,554 B2 · Asphalt modifiers, methods of modifying asphalt, asphalt compositions and methods of making > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 8,784,554 B2 - Document ID: US8784554B2 - Status: Granted - Kind: B2 - Application number: 13/311,445 - Filed: 2011-12-05 - Published: 2012-09-06 - Granted: 2014-07-22 - Earliest claimed: 2009-03-08 - Applicants: Premnathan Naidoo; Patrick Keating - Inventors: Premnathan Naidoo; Patrick Keating - Web page: https://patentgrep.com/patent/US8784554B2 ## CPC - C08L 95/00: Compositions of bituminous materials, e.g. asphalt, tar, pitch - C08L 23/10: Homopolymers or copolymers of propene - C09D 195/00: Coating compositions based on bituminous materials, e.g. asphalt, tar, pitch - C08L 23/00: Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers - C08L 25/08: Copolymers of styrene (C08L29/08, C08L35/06, C08L55/02 take precedence) - C08L 53/00: Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers - C08L 55/00: Compositions of homopolymers or copolymers, obtained by polymerisation reactions only involving carbon-to-carbon unsaturated bonds, not provided for in groups C08L23/00 - C08L53/00 - C08L 91/00: Compositions of oils, fats or waxes; Compositions of derivatives thereof - C08L 2205/03: containing three or more polymers in a blend - Y02A 30/30: in transportation, e.g. on roads, waterways or railways - C08L: COMPOSITIONS OF MACROMOLECULAR COMPOUNDS (compositions based on polymerisable monomers C08F, C08G; artificial filaments or fibres D01F; textile treating compositions D06) - C09D: COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR (cosmetics A61K; processes for applying liquids or other fluent materials to surfaces, in general, B05D; staining wood B27K5/02; glazes or vitreous enamels C03C; natural resins, French polish, drying-oils, driers, turpentine, per se, C09F; polishing compositions other than French polish, ski waxes C09G; adhesives or use of materials as adhesives C09J; materials for sealing or packing joints or covers C09K3/10; materials for stopping leaks C09K3/12; processes for the electrolytic or electrophoretic production of coatings C25D) - Y02A: TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE ## Abstract Asphalt compositions and products comprising petroleum asphalt, polyolefin, and a wax. ## Claims ### Claim 1 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. ### Claim 2 (depends on 1) The asphalt of claim 1, wherein the binder component comprises at least one of a polyethylene by product wax or petroleum micro-wax derived from crude oil refining processes. ### Claim 3 (depends on 2) The asphalt of claim 2, wherein the binder component comprises a melting point in the range of 150° F. (66° C.) to 220° F. (104° C.). ### Claim 4 (depends on 1) The asphalt of claim 1, wherein the polyolefin comprises a melting point range from 115° C. to 250° C. ### Claim 5 (depends on 1) The asphalt of claim 1, wherein the polyolefin comprises polypropylene homo-polymer resins, and the binder component comprises at least one of a polyethylene by product wax or a petroleum micro-wax derived from crude oil refining processes. ### Claim 6 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. ### Claim 7 (depends on 6) The method of claim 6, wherein the binder component comprises at least one of a polyethylene wax or a petroleum micro-wax derived from crude oil refining processes. ### Claim 8 (depends on 6) The asphalt of claim 6, wherein the polyolefin component comprises a melting point range from 115° C. to 250° C. ### Claim 9 (depends on 6) The method of claim 6, wherein the polyolefin component comprises polypropylene homo-polymer resins, and the binder component comprises at least one of a polyethylene wax or a petroleum micro-wax derived from crude oil refining processes. ### Claim 10 (depends on 9) The method of claim 9, wherein the binder component comprises a melting point in the range of 150° F. (66° C.) to 220° F. (104° C.). ### Claim 11 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. ### Claim 12 (depends on 11) The asphalt of claim 11, wherein the binder component comprises at least one of a polyethylene by product wax or petroleum micro-wax derived from crude oil refining processes, and the third component is ground tire rubber. ### Claim 13 (depends on 11) The asphalt of claim 11, wherein the polyolefin comprises a melting point range from 115° C. to 250° C. ### Claim 14 (depends on 11) The asphalt of claim 11, wherein the polyolefin comprises polypropylene homo-polymer resins, and the binder component comprises at least one of a polyethylene by product wax or a petroleum micro-wax derived from crude oil refining processes. ### Claim 15 (depends on 14) The asphalt of claim 14, wherein the binder component comprises a melting point in the range of 150° F. (66° C.) to 220° F. (104° C.). ### Claim 16 (depends on 11) The asphalt product of claim 11, wherein the third component is ground tire rubber. ### Claim 17 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. ### Claim 18 (depends on 17) The method of claim 17, wherein the binder component comprises at least one of a polyethylene by product wax or petroleum micro-wax derived from crude oil refining processes. ### Claim 19 (depends on 17) The method of claim 17, wherein the polyolefin comprises a melting point range from 115° C. to 250° C. ### Claim 20 (depends on 17) The method of claim 17, wherein the polyolefin comprises polypropylene homo-polymer resins, and the binder component comprises at least one of a polyethylene by product wax or a petroleum micro-wax derived from crude oil refining processes. ### Claim 21 (depends on 17) The method of claim 17, wherein the binder component comprises a melting point in the range of 150° F. (66° C.) to 220° F. (104° C.). ### Claim 22 (depends on 17) The method of claim 17, wherein the second component is ground tire rubber.