# US 2019/0169437 A1 · Micronized 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 2019/0169437 A1 - Document ID: US20190169437A1 - Status: Published application - Kind: A1 - Application number: 15/899,345 - Filed: 2018-02-19 - Published: 2019-06-06 - Earliest claimed: 2009-03-08 - Assignees: Lehigh Technologies, Inc. - Applicants: Lehigh Technologies, Inc. - Inventors: PREMNATHAN NAIDOO; VERNON PATRICK KEATING - Web page: https://patentgrep.com/patent/US20190169437A1 ## CPC - C08L 95/00: Compositions of bituminous materials, e.g. asphalt, tar, pitch - C08L 9/06: Copolymers with styrene - C08L 23/10: Homopolymers or copolymers of propene - C09D 195/00: Coating compositions based on bituminous materials, e.g. asphalt, tar, pitch - C08F 110/00: Homopolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond - C08K 2201/003: Additives being defined by their diameter - 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 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 - C08L 2205/035: containing four or more polymers in a blend - C08L 2555/86: Polymers containing aliphatic hydrocarbons only, e.g. polyethylene, polypropylene or ethylene-propylene-diene copolymers - 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) - C08F: MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS - C08K: Use of inorganic or non-macromolecular organic substances as compounding ingredients (paints, inks, varnishes, dyes, polishes, adhesives C09) - Y02A: TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE ## 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. ## Claims ### Claim 1 An asphalt comprising: a first component comprising a low asphaltine petroleum asphalt having an asphaltene content in the range of about 3 to 5 wt %; and, a second component comprising particles of polypropylene resin; wherein the resin particles have a diameter less than about 590 microns. ### Claim 2 (depends on 1) The asphalt of claim 1, further comprising glycidyl functional terpolymers, a wax, and ground tire rubber. ### Claim 3 (depends on 1) The asphalt of claim 1, further comprising a wax, ground tire rubber and at least one of reactive elastomeric terpolymers, polymers having glycidyl functionality, polymers having glycidyl acrylate functionality, and polymers having epoxide functionality. ### Claim 4 A method of treating a petroleum asphalt having an asphaltene content, the method comprising: contacting a petroleum asphalt with particles of resin component, wherein the resin is polypropylene and the aspahaltene content is in the range of about 3 to 5 wt %, and the resin particles have a diameter less than about 590 microns. ### Claim 5 An asphalt comprising: a first component comprising a petroleum asphalt having an asphaltene content; a second component dispersed in the asphalt comprising resin particles; 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 polypropylene and the aspahaltene content is in the range of about 3 to 5 wt %, and the resin particles have a diameter less than about 590 microns. ### Claim 6 (depends on 5) The asphalt of claim 5, further comprising glycidyl functional terpolymers, and a wax. ### Claim 7 (depends on 5) The asphalt of claim 5, wherein the asphalt when tested according to ASTM D 7173 has a temperature differential of less than or equal to a 10° C. (18° F.) temperature differential using ASTM D 7173. ### Claim 8 (depends on 5) The asphalt of claim 5, wherein the asphalt when tested according to ASTM D 7173 has a temperature differential of less than or equal to a 6° C. (10.8° F.) temperature differential using ASTM D 7173. ### Claim 9 (depends on 5) The asphalt of claim 5, wherein the asphalt when tested according to ASTM D 7173 has a temperature differential of less than or equal to a 4° C. (7.2° F.) temperature differential using ASTM D 7173. ### Claim 10 (depends on 5) The asphalt of claim 5, wherein the asphalt when tested according to ASTM D 7173 has a temperature differential of less than or equal to a 2° C. (3.6° F.) temperature differential using ASTM D 7173. ### Claim 11 A method of modifying a petroleum asphalt having an asphaltene content, the method comprising: forming a composition comprising the petroleum asphalt, a first component, a second component, a third component and a fourth component to form a modified asphalt, wherein the first component comprises polypropylene resin particles; the second component comprises wax, and the third component is a glycidyl functional polymer, and the fourth component is selected from the group consisting of ground tire rubber and polymers of styrene and butadiene, wherein the aspahaltene content is in the range of about 3 to 5 wt %, and the resin particles have a diameter less than about 590 microns. ### Claim 12 (depends on 11) The method of claim 11, wherein the the resin comprises glycidyl methacrylate functionality. ### Claim 13 (depends on 11) The method of claim 11, wherein the the resin comprises an ethylene-butyl acrylate-glycidyl methacrylate polymer. ### Claim 14 (depends on 11) The method of claim 11, wherein the modified asphalt when tested according to ASTM D 7173 has a temperature differential of less than or equal to a 10° C. (18° F.) temperature differential using ASTM D 7173. ### Claim 15 (depends on 11) The method of claim 11, wherein the modified asphalt when tested according to ASTM D 7173 has a temperature differential of less than or equal to a 6° C. (10.8° F.) temperature differential using ASTM D 7173. ### Claim 16 (depends on 11) The method of claim 11, wherein the modified asphalt when tested according to ASTM D 7173 has a temperature differential of less than or equal to a 4° C. (7.2° F.) temperature differential using ASTM D 7173. ### Claim 17 (depends on 11) The method of claim 11, wherein the modified asphalt when tested according to ASTM D 7173 has a temperature differential of less than or equal to a 2° C. (3.6° F.) temperature differential using ASTM D 7173.