A method of re-stiffening an over-digested rubber modified bituminous binder includes admixing a reactive, stiffness inducing organic additive with the over-digested rubber modified bituminous binder to produce a re-stiffened rubber modified bituminous binder with an increased softening point. The admixing takes place at an elevated temperature of at least 185 C. A rubber modified bituminous binder suitable for both asphalt and seal surfacing applications that includes a digested rubber bituminous admixture with a softening point of at least 55 C. and a dynamic viscosity at 190 C. of less than 2000 mPa.Math.s. A method of sealing or paving a surface includes applying a layer which includes a rubber modified bituminous binder to the surface, the rubber modified bituminous binder being in the form of a digested rubber bitumen admixture with a softening point of at least 55 C. and a dynamic viscosity at 190 C. of less than 2000 mPa.Math.s.

A modified asphalt binder with improved elastic properties and methods of making such modified asphalt binder. The modified asphalt binders may include one or more of an asphalt binder, a solvent deasphalted (SDA) pitch, a polymeric material, and optionally, a ground tire rubber. The disclosed modified asphalt binders exhibit properties consistent with decreased susceptibility to rutting and thus may be used in asphalt concrete applications.

A high density polyethylene-asphaltene composite that includes 85 to 98 wt. % of a high density polyethylene (HDPE) polymer and 10 wt. % or less of a filler, wherein the filler is an asphaltene, the asphaltene is the only filler present, and the asphaltene is uniformly dispersed within a matrix of the HDPE polymer. The thermal stability of the high density polyethylene-asphaltene composite is improved compared to the high density polyethylene polymer.

The present invention relates to relates to a method of producing an improved asphalt. This method includes providing an asphalt binder and providing a compound of formula (I):

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as described herein. The asphalt binder is mixed with the compound of formula (I) under conditions effective to produce an improved asphalt. Also disclosed are an asphalt product and a method of making asphalt material.

A high density polyethylene-asphaltene composite that includes 85 to 98 wt. % of a high density polyethylene (HDPE) polymer and 10 wt. % or less of a filler, wherein the filler is an asphaltene, the asphaltene is the only filler present, and the asphaltene is uniformly dispersed within a matrix of the HDPE polymer. The thermal stability of the high density polyethylene-asphaltene composite is improved compared to the high density polyethylene polymer.

The modified high-viscosity asphalt has raw materials of a base asphalt mixture, an oil slurry, a rubber modifier, modified petroleum resin, an anti-stripping agent, and carbon black powder. The road asphalt patching tape has good high-temperature performance, excellent wear resistance to wheels, a very high friction coefficient and good low-temperature ductility. The road asphalt patching tape can be closely attached to and effectively repair the diseased road surface. In this way, the road asphalt patching tape is compactly connected to the diseased road surface, which can strengthen the diseased road surface, strengthen the overall strength of the cracked area, and prevent diseases, such as turtle shell-shaped cracks, pitted surfaces or the like, from deteriorating into potholes or the like.

A process for producing blown asphalt comprising the steps of mixing a heated hydrocarbon stream and a supercritical water in to produce a mixed stream, operating the supercritical water reactor to produce a reactor effluent, reducing the temperature of the reactor effluent in the cooler to produce a cooled effluent, feeding the cooled effluent through a depressurizing device to produce a depressurized stream, separating the depressurized stream in the flash drum to produce a light fraction stream and a heavy fraction stream, the heavy fraction stream contains a maltene fraction, an asphaltene fraction, and water, introducing the heavy fraction stream to a storage tank, withdrawing an oxidizing reactor feed from the storage tank, introducing the oxidizing reactor feed to an oxidation reactor, and operating the oxidation reactor at an oxidation temperature and an oxidation pressure to produce a product effluent that comprises an oxidized asphaltene fraction.

Organic infrared attenuation agents have been developed to improve the thermal insulation properties of polymeric foams such as polystyrene low density foams. The organic infrared attenuation agents can include polyols such as sorbitol, maltitol, and poly(ethylene glycol), polysaccharides such as starch or cellulose, and infrared attenuation polyesters such as polybutylene terephthalate. The organic attenuation agents include aromatic compounds or carbon oxygen bonds that are effective in absorbing infrared radiation at the desired wavelengths.

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.

The present invention aims to provide a foam, a laminated foam, and a resin sheet that are capable of exhibiting particularly excellent vibration-damping properties while being lightweight and are useful for recycling interlayer films for a laminated glass. The present invention also aims to provide a building material for housing including any of the foam, the laminated foam, and the resin sheet. Provided is a foam having a plurality of cells, the foam containing a polyvinyl acetal; a plasticizer; and a thermoplastic elastomer and/or a liquid crystal polymer.