Abstract: Paving compositions and method of producing the same are provided. In an exemplary embodiment, a paving composition includes a binder, where the binder includes bitumen, recycled plastic, and a performance enhancement additive. The performance enhancement additive is selected from the group of low molecular weight polyolefin, a glycidyl compound, and a combination thereof. The low molecular weight polyolefin has a weight average molecular weight of from about 500 to about 30,000 Daltons. The glycidyl compound includes an ethylene glycidyl (meth)acrylate polymer with a weight average molecular weight of from about 500 to about 30,000 Daltons.

Abstract: An asphalt composition includes asphalt, a non-epoxidized oil chosen from flux oils, bio oils, recycled motor oils, liquid plasticizers, and combinations thereof, and a polyolefin. The polyolefin has a weight average molecular weight (Mw) of from about 1,000 to about 20,000 g/mol, an optional acid number of from about 10 to about 50 mg KOH/g, an optional saponification number of from about 10 to about 100 mg KOH/g, and a density of from about 0.92 to about 1 g/cm3. The asphalt composition has a performance grade of PG (52 to 88) and (?22 to ?40), wherein (52 to 88) is an average seven day maximum pavement design temperature in degrees Celsius and represents deformation resistance and (?22 to ?40) is an average one day minimum pavement design temperature in degrees Celsius and represents thermal cracking resistance, each as determined using AASHTO M320.

Abstract: Methods for reducing asphalt pavement thickness are provided. A method for producing thin asphalt pavement includes combining a base asphalt, an oxidized polyolefin, and an aggregate to form an asphalt paving material. A layer of the asphalt paving material is deposited on a substrate layer and compacted to a thickness.

Abstract: An asphalt composition includes asphalt, a non-epoxidized oil chosen from flux oils, bio oils, recycled motor oils, liquid plasticizers, and combinations thereof, and a polyolefin. The polyolefin has a weight average molecular weight (Mw) of from about 1,000 to about 20,000 g/mol, an optional acid number of from about 10 to about 50 mg KOH/g, an optional saponification number of from about 10 to about 100 mg KOH/g, and a density of from about 0.92 to about 1 g/cm3. The asphalt composition has a performance grade of PG (52 to 88) and (?22 to ?40), wherein (52 to 88) is an average seven day maximum pavement design temperature in degrees Celsius and represents deformation resistance and (?22 to ?40) is an average one day minimum pavement design temperature in degrees Celsius and represents thermal cracking resistance, each as determined using AASHTO M320.

Abstract: Asphalt adhesive compositions and methods of producing the same are provided. In an exemplary embodiment, an asphaltic adhesive useful for self-adhering membranes includes asphalt at from about 40 to about 70 weight percent, based on a total weight of the adhesive. The adhesive also includes a low molecular weight (LMW) polyolefin at from about 1 to about 10 weight percent, based on the total weight of the adhesive. The LMW polyolefins have a weight average molecular weight (Mw) of from about 500 to about 20,000 Daltons. The adhesive has an aged peeling strength greater than an aged peeling strength of a comparable comparison adhesive, wherein the comparison adhesive includes from about 40 to about 70 weight percent asphalt but is free of a LMW polyolefin, as determined by Guobiao recommended (GB/T) 328.20-2007 in specification Guobiao (GB) 23441-2009 (self-adhering polymer modified bituminous waterproof sheet.

Abstract: Plastomer-modified asphalt binders meeting MSCR specifications, asphalt paving materials with such asphalt binders, and methods for fabricating such asphalt binders are provided. The asphalt binder contains a base asphalt and a plastomer. If the plastomer has a drop point no greater than about 139° C., the asphalt binder further contains sulfur; sulfur-containing compounds, such as hydrocarbyl polysulfides and thiuram disulfides; phenolic resins; metal oxides; or a combination thereof. The asphalt binder is substantially free of elastomer.

Abstract: Plastomer-modified asphalt binders meeting MSCR specifications, asphalt paving materials with such asphalt binders, and methods for fabricating such asphalt binders are provided. The asphalt binder contains a base asphalt and a plastomer. If the plastomer has a drop point no greater than about 139° C., the asphalt binder further contains sulfur; sulfur-containing compounds, such as hydrocarbyl polysulfides and thiuram disulfides; phenolic resins; metal oxides; or a combination thereof. The asphalt binder is substantially free of elastomer.

Abstract: Plastomer-modified asphalt binders meeting MSCR specifications, asphalt paving materials with such asphalt binders, and methods for fabricating such asphalt binders are provided. The asphalt binder contains a base asphalt and a plastomer. If the plastomer has a drop point no greater than about 139° C., the asphalt binder further contains sulfur; sulfur-containing compounds, such as hydrocarbyl polysulfides and thiuram disulfides; phenolic resins; metal oxides; or a combination thereof. The asphalt binder is substantially free of elastomer.

Abstract: A non-blown roofing grade bitumen composition comprising bitumen feedstock, polyolefin having a molecular weight of from about 800 to about 50,000 g/mol, and optionally one or more additives, wherein the softening point of the composition is above 70° C. as determined according to method ASTM D36 and the penetration of the composition is at least about 12 dmm at 25° C. as determined according to method ASTM D5. A method of making the same.

Abstract: Asphalt compositions for roofing applications are provided, as well as filled asphalt material comprising the asphalt compositions and methods for making asphalt compositions and filled asphalt material. More particularly, the asphalt compositions comprise non-oxidized base asphalt; and a low molecular weight polyolefin present in an amount of from about 0.5 to about 15 wt % based on the total weight of the asphalt composition. The asphalt composition has a softening point from about 87.8 to about 160° C. (about 190 to about 320° F.), a penetration of greater than 12 deci-millimeters @ 25° C., as well as improved stain resistance and heat resistance.

Abstract: Asphalt binder compositions are provided comprising asphalt and a polymer blend, wherein the polymer blend comprises oxidized high density polyethylene and another polymer chosen from: maleated polypropylene, polyethylene homopolymer, high crystallinity polyethylene, and combinations thereof. Also provided are paving and roofing materials comprising the aforesaid asphalt binder compositions and an aggregate material. Methods for making and using the asphalt binder compositions are also provided.

Abstract: Asphalt compositions for roofing applications are provided, as well as filled asphalt material comprising the asphalt compositions and methods for making asphalt compositions and filled asphalt material. More particularly, the asphalt compositions comprise non-oxidized base asphalt; and a low molecular weight polyolefin present in an amount of from about 0.5 to about 15 wt % based on the total weight of the asphalt composition. The asphalt composition has a softening point from about 87.8 to about 160° C. (about 190 to about 320° F.), a penetration of greater than 12 deci-millimeters @ 25° C., as well as improved stain resistance and heat resistance.

Abstract: Plastomer-modified asphalt binders meeting MSCR specifications, asphalt paving materials with such asphalt binders, and methods for fabricating such asphalt binders are provided. The asphalt binder contains a base asphalt and a plastomer. If the plastomer has a drop point no greater than about 139° C., the asphalt binder further contains sulfur; sulfur-containing compounds, such as hydrocarbyl polysulfides and thiuram disulfides; phenolic resins; metal oxides; or a combination thereof. The asphalt binder is substantially free of elastomer.

Abstract: Asphalt binder compositions are provided comprising asphalt and a polymer blend, wherein the polymer blend comprises oxidized high density polyethylene and another polymer chosen from: maleated polypropylene, polyethylene homopolymer, high crystallinity polyethylene, and combinations thereof. Also provided are paving and roofing materials comprising the aforesaid asphalt binder compositions and an aggregate material. Methods for making and using the asphalt binder compositions are also provided.

Abstract: Methods for reducing asphalt pavement thickness, for fabricating asphalt paving material with increased aggregate-to-aggregate contact points, and for fabricating asphalt paving materials with improved low temperature cracking performance are provided. A method for reducing asphalt pavement thickness includes combining a base asphalt, an oxidized polyolefin, and an aggregate to form an asphalt paving material. A layer of the asphalt paving material is deposited on a substrate layer and compacted to a thickness that is less than a thickness of a compacted asphalt paving material formed of the aggregate and the base asphalt with no oxidized polyolefin while achieving the same amount or less of high temperature rutting than the compacted asphalt paving material formed of the aggregate and the base asphalt with no oxidized polyolefin.

Abstract: A non-blown roofing grade bitumen composition comprising bitumen feedstock, polyolefin having a molecular weight of from about 800 to about 50,000 g/mol, and optionally one or more additives, wherein the softening point of the composition is above 70° C. as determined according to method ASTM D36 and the penetration of the composition is at least about 12 dmm at 25° C. as determined according to method ASTM D5. A method of making the same.

Abstract: An asphalt paving material comprises an asphalt binder present in an amount of from about 3 to about 8 weight percent of the asphalt paving material. The asphalt binder comprises base asphalt and oxidized polyolefin that is present in an amount of from about 0.25 to about 10 weight percent of the base asphalt. Aggregate is present in an amount of about 92 to about 97 weight percent of the asphalt paving material. The oxidized polyolefin effectively adheres the asphalt binder to the aggregate so as to resist stripping of the asphalt binder from the aggregate caused by moisture.

Abstract: An asphaltic composition comprises base asphalt and a low molecular weight ethylene vinyl acetate copolymer. The low molecular weight ethylene vinyl acetate copolymer is present in an amount of from about 0.1 to about 5 wt. % of the base asphalt.

Abstract: An asphalt paving material comprises an asphalt binder present in an amount of from about 3 to about 8 weight percent of the asphalt paving material. The asphalt binder comprises base asphalt and oxidized polyolefin that is present in an amount of from about 0.25 to about 10 weight percent of the base asphalt. Aggregate is present in an amount of about 92 to about 97 weight percent of the asphalt paving material. The oxidized polyolefin effectively adheres the asphalt binder to the aggregate so as to resist stripping of the asphalt binder from the aggregate caused by moisture.

Abstract: The present invention relates to a method for preparing an industrial asphalt comprising (1) heating an asphalt flux to a temperature which is within the range of about 400° F. (204° C.) to 550° F. (288° C.) to produce a hot asphalt flux, (2) sparging an oxygen containing gas through the hot asphalt flux for a period of time which is sufficient to increase the softening point of the asphalt flux to a value of at least 100° F. (38° C.), to produce an underblown asphalt composition; and (3) mixing a sufficient amount of a polyphosphoric acid throughout the underblown asphalt composition while the underblown asphalt composition is maintained at a temperature which is within the range of 200° F. (93° C.) to 550° F. (288° C.) to attain a softening point which is within the range of 185° F. (85° C.) to 250° F. (121° C.) and a penetration value of at least 15 dmm at 77° F. (25° C.) to produce the industrial asphalt.