Abstract: Various embodiments provide surface compositions and methods for repairing durable and/or load-bearing surfaces including roadway voids, manhole structures, and/or safety flooring. Compositions and methods may comprise utilizing a liquid binder, catalyst, and/or primer to provide durable, waterproof, and/or long-lasting surface compositions to dispose within the roadway voids and/or to coat flooring. The surface compositions may cure rapidly through an internal exothermic reaction process to form the repair and/or the safety flooring. In some embodiments, filler materials may be disposed within the liquid binders to provide elasticity, compression, slip resistance, heat transfer, reduced cure time, and/or a desired surface texture to the surface composition.

Abstract: This invention provides a novel composite of bitumen and recycled polymers from post consumer and pre consumer manufacturing scraps for use in asphalt to increase its viscosity at higher temperature, desirable in pavements of warmer regions. This additive also improves tackiness for use in asphalt sealant applications and roofing membrane. This invention meets federal government objective of increasing post consumer wastes in asphalt.

Abstract: A modified-asphalt composition prepared by introducing a diene end-capped block copolymer with a molten asphalt composition, where the block copolymer is defined by the formula ?-(D-V-d)x where each D is independently a polydiene block, each V is independently a vinyl aromatic block, each d is a polydiene end cap, ? is a coupling moiety, and x is an integer from 2 to 10.

Abstract: A thermoreversibly cross-linked graft polymer, which may be used in bituminous asphalt, includes: a main polymer chain P consisting of conjugated diene units; at least one side graft G having the following general formula (1): R—(OCH2CH2)m—S—, where R is a straight or branched saturated hydrocarbon chain having at least 18 carbon atoms, and m is an integer varying from 0 to 20, the graft G being connected to the main polymer chain P via the sulfur atom of formula (1); and at least one graft G? having the following general formula (4): —S—R?—S—, where R? is a linear or branched, saturated or unsaturated hydrocarbon grouping having from 2 to 40 carbon atoms, optionally including one or more heteroatoms, the graft G? being connected to the main polymer chain P via each sulfur atom of formula (4).

Abstract: The invention relates to a bituminous composition containing at least one bitumen and at least one polyolefin capable of forming a supramolecular assembly comprising one or more associative group(s). The invention also relates to the use of such bituminous composition for the preparation of asphalt mixtures useful for the coating of rolling surfaces, for the preparation of water-proofing coatings, and for the preparation of adhesive formulations.

Abstract: An adhesive that displays high adhesive strength to polyolefin materials, has a curing rate that is sufficiently fast for practical use, and also displays good adhesive strength to general use materials includes a moisture curing resin composition including a copolymer having a hydrolytic silyl group, the copolymer including a (meth)acrylic acid alkylester monomer unit with an alkyl group having from 1 to 8 carbons and a (meth)acrylic acid alkylester monomer unit with an alkyl group having not less than 10 carbons, and an oxyalkylene polymer having a hydrolytic silyl group; a chlorinated polyolefin; a hydrolytic silane having not less than two phenyl groups as organic groups; and a tackifying resin that has compatibility with the moisture curing resin composition and that is solid at 25° C. wherein a content of the hydrolytic silane is more than 0 parts by mass and not more than 9 parts by mass per 100 parts by mass of the moisture curing resin composition.

Abstract: A polyurethane resin composition comprising a prepolymer and a polymerizable plasticizer, and which may also comprise at least one constituent chosen from the group comprising: a masked polyisocyanate; a diluent; bitumen or a bituminous mixture; and mixtures thereof, and uses thereof.

Abstract: A modified ground tire rubber based additive includes (a) 30-99 weight percent of ground tire rubber, (b) 0-9-69.9 weight percent of a material selected from a group including a gelling clay, a reactive agent, an elastomer, a plastomer, a handling and agglomerating agent and mixtures thereof and (c) 0.1-5 weight percent compatibilizer.

Abstract: Disclosed herein are an asphalt concrete mixture, an asphalt binder composition, and methods of preparing the related compositions. The asphalt binder compositions include a polyphosphoric acid, a macromolecular polymer having a saturated backbone with macromolecular modifications, and sulfur. The compositions are capable of being performance graded.

Abstract: Methods are provided for upgrading the quality of an asphalt. The methods include mixing an asphalt feed with a cracking resistance additive that improves the low temperature properties of the asphalt while leaving the high temperature properties unchanged or minimally changed. The cracking resistance additive corresponds to a compound that is a liquid at both the low temperature performance grade for the asphalt and at mixing and/or storage temperature for the asphalt. Examples of compounds that, in an appropriate molecular weight range, are liquids across this broad temperature range include polyalphaolefins, alkylated naphthalenes, and organic esters.

Abstract: The disclosure relates to a bitumen/polymer composition comprising at least one bitumen and at least one graft polymer, the grafts enabling the bitumen/polymer compositions to be thermoreversibly cross-linked. The disclosure also relates to the use of said bitumen/polymer compositions in fields of application relating to roads, especially in the production of asphalt binders, and in industrial fields of application. The disclosure further relates to the method for producing said thermoreversibly cross-linked bitumen/polymer compositions.

Abstract: A process of preparing a polymer modified asphalt (PMA) comprising mixing a predetermined amount of a polymer-asphalt master batch with a predetermined amount of an asphalt-cross linking agent blend. The polymer-asphalt master batch comprises at least one polymer and a first asphalt. The asphalt-cross linking agent blend comprises a second asphalt and at least one cross linking agent. A predetermined amount of the polymer-asphalt master batch is blended with a predetermined amount of the asphalt-cross linking agent blend to form a PMA blend. Mixing of the PMA blend is performed without substantial delay following blending of the polymer-asphalt master batch with the asphalt-cross linking agent blend.

Abstract: The invention relates to a process for the preparation of mixtures containing bitumen and thermoplastic polymer at a high concentration, stable during storage, with particular characteristics of easy processability and movability which, once diluted, allow modified bitumens to be obtained with high performance characteristics. In particular, the process allows mixtures containing bitumen, thermoplastic polymer and wax, to be prepared, wherein the polymer is in a quantity varying from 5 to 30% by weight with respect to the weight of the mixture consisting of bitumen and polymer, and the wax is in a quantity varying from 4.7 to 16.7% by weight with respect to the weight of the total mixture, and comprises reacting a concentrated mixture (A), stable during storage, containing bitumen and from 5 to 30% by weight of thermoplastic polymer, with a hydrocarbon wax containing at least 40 carbon atoms and having a melting point of at least 700 C.

Abstract: A roofing membrane that includes a blend of thermoplastic polyurethane and petroleum liquid so as to improve the UV stability of the blend without adversely affecting the flexibility of the dried and/or cured blend.

Abstract: Disclosed is a modified asphalt composition including a styrenic block copolymer and a vegetable wax as modifier. With lower viscosity at high temperatures as compared to the asphalt composition modified only with the styrenic block copolymer, it can be manufactured and used at lower temperatures. Also, with higher ductility at low temperatures, it can minimize fatigue crack even in cold weathers.

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: A modified-asphalt composition prepared by introducing a diene end-capped block copolymer with a molten asphalt composition, where the block copolymer is defined by the formula ?-(D-V-d)x where each D is independently a polydiene block, each V is independently a vinyl aromatic block, each d is a polydiene end cap, ? is a coupling moiety, and x is an integer from 2 to 10.

Abstract: In a first aspect, bituminous asphalt binder materials which are modified by the addition of crumb rubber or ground tire rubber are described. In a second aspect, the present invention is directed to methods of producing a modified asphalt binder containing crumb rubber or ground tire rubber. The modified asphalt binders comprise neat asphalt, crumb rubber, one or more synthetic polymers, and one or more acids. The crumb rubber may be obtained from recycled truck and/or automobile tires.

Abstract: A process of preparing a polymer modified asphalt (PMA) comprising mixing a predetermined amount of a polymer-asphalt master batch with a predetermined amount of an asphalt-cross linking agent blend. The polymer-asphalt master batch comprises at least one polymer and a first asphalt. The asphalt-cross linking agent blend comprises a second asphalt and at least one cross linking agent. A predetermined amount of the polymer-asphalt master batch is blended with a predetermined amount of the asphalt-cross linking agent blend to form a PMA blend. Mixing of the PMA blend is performed without substantial delay following blending of the polymer-asphalt master batch with the asphalt-cross linking agent blend.

Abstract: The present invention relates to oil-extended styrenic block copolymer compositions that include a thermoplastic polymer, such as polystyrene, and a styrenic block copolymer, especially a linear styrene-butadiene-styrene triblock copolymer, with a styrene content less than 23 percent by weight, based upon total composition weight. The compositions yield very thin polymeric films with satisfactory physical properties.

Abstract: The present invention relates to a granule comprising: less than 30%, preferably between 0.5 and 20%, more preferably between 2 and 5% by weight of bitumen; and more than 70%, preferably between 80 and 99.5%, more preferably between 95 and 98% by weight of a vulcanization composition comprising a vulcanization agent; to the process for manufacturing same by extrusion and the use of same in modified bitumens.

Abstract: This invention provides a novel composite of bitumen and recycled polymers from post consumer and pre consumer manufacturing scraps for use in asphalt to increase its viscosity at higher temperature, desirable in pavements of warmer regions. This additive also improves tackiness for use in asphalt sealant applications and roofing membrane. This invention meets federal government objective of increasing post consumer wastes in asphalt.

Abstract: A modified-asphalt composition prepared by introducing a diene end-capped block copolymer with a molten asphalt composition.

Abstract: A non-carboxylated styrene-butadiene copolymer, preparation method and use thereof are provided. The non-carboxylated styrene-butadiene copolymer is prepared by hot polymerization in the absence of acid monomers and is used in asphalt-based systems such as asphalt emulsions.

Abstract: Styrene-based copolymers having acid monomer units, dispersions, preparation method and use thereof are provided. The styrene-based copolymer is prepared by polymerizing styrene, one or more acid monomers, and optionally butadiene at a temperature of 40° C. or greater and then is vulcanized. The obtained styrene-based copolymer is used in asphalt-based systems.

Abstract: An acid modified asphalt binder is combined with an emulsifier solution to produce an emulsified asphalt binder. The acid modified asphalt binder may be formed by combining an asphalt binder, a phosphorous-based acid, and, optionally, a polymer modifier. The emulsifier solution may be produced by forming an aqueous solution of an amine and a phosphorous-based acid, which forms an aqueous solution comprising an amine phosphate. The emulsified asphalt binder may be combined with an aggregate to form a paving material. In other examples, the emulsified asphalt binder may be used alone, for example in a chip seal application, or in a diluted form, for example in a fog seal application.

Abstract: A graft polymer PG includes a polymer backbone P and at least one side graft G linked to the polymer backbone, the graft G having the general formula (1): in which R1 and R2 represent, separately from one another, straight or branched, unsaturated or saturated hydrocarbon groups, such that the total number of carbon atoms in groups R1 and R2 is between 2 and 110; X represents an amide, amino-acid, urea or urethane function, the graft G being linked to the polymer backbone P via the sulphur atom. The graft polymer PG is a polymer that allows thermoreversible cross-linking and can be used in many fields such as coatings, paints, thermoplastics, adhesives, lubricants, fuels, inks, cements, construction materials, rubbers and bitumens. The graft polymer PG can be used in particular for thermoreversibly cross-linking bitumen/polymer compositions and thus for reducing coating, spreading and/or compaction temperatures during the production of bituminous coated materials.

Abstract: A roofing membrane that includes a blend of thermoplastic polyurethane and petroleum liquid so as to improve the UV stability of the blend without adversely affecting the flexibility of the dried and/or cured blend.

Abstract: A fluorine-containing polymer segment includes at least one substituent for proton transfer that has one or more fluorine atoms. The fluorine-containing polymer segment is useful for forming hydrophilic polymer blocks that are used in block copolymers. Block copolymers useful for fuel cell applications incorporate the hydrophilic polymer blocks formed from the fluorine containing polymer segments.

Abstract: The present invention relates to a block copolymer comprising at least one PA block and at least one PB block. The PA block represents a polymer block comprising one or more units of monomer A, and the PB block represents a polymer block comprising one or more units of monomer B. Monomer A is a vinyl, acrylic, diolefin, nitrile, dinitrile, or acrylonitrile monomer. Monomer B is a radically polymerizable plant oil monomer containing one or more triglycerides. The present invention also relates to a method of preparing a thermoplastic block copolymer by radical polymerizing a radically polymerizable monomer with a radically polymerizable plant oil monomer containing one or more triglycerides, in the presence of an initiator and a transition-metal catalyst system to form the thermoplastic block copolymer. The polymerized plant oil-based block copolymers are useful in a variety of applications, such as asphalt modifiers, rubber compositions, adhesives, tires, in the automobile industry, footwear, packaging, etc.

Abstract: Bitumen may be prepared by mixing at least two bitumen feed streams to prepare a bitumen product stream; analyzing the feed streams and the product stream to determine a stability index for each using a Bitumen Asphaltene Stability Index Test; and when the index value for the bitumen product stream is less than about 90% of the weighted average index value for the feed streams, modifying the product stream to achieve a stability index value that is at least 90% of the weighted average index value for the feed streams.

Abstract: Embodiments of the present invention are directed to compositions and methods for a thermoplastic paving composition including an asphalt rubber binder and a polyethylene polymer additive.

Abstract: The invention provides a bituminous composition, a process for preparing a bituminous paving composition and process for bituminous paving having lower mixing, paving, and compaction temperatures than for conventional hot-mix paving while retaining sufficient performance characteristics of conventional hot-mix paving. The inventive paving process comprises the steps of injecting a heated foamable solution comprising a lubricating substance into a heated, asphalt binder to provide a heated, foamed mixture; adding the heated, foamed mixture to a suitable, heated aggregate; further mixing the heated, foamed mixture and heated aggregate to coat the heated aggregate with the heated, foamed, asphalt binder to form a heated paving material; supplying the heated paving material to a paving machine; applying the heated paving material by the paving machine to a surface to be paved; and compacting the applied paving material to form a paved surface.

Abstract: A process for preparing graft polymers from a polymer is based on conjugated diene units and a graft which is a thiol derivative. The process has an absence of solvent and any radical initiator. The graft polymer can be advantageously be used as additive for a bitumen/polymer composition and in particular permits thermoreversible cross-linking.

Abstract: Disclosed is a modified asphalt composition including a styrenic block copolymer and a vegetable wax as modifier. With lower viscosity at high temperatures as compared to the asphalt composition modified only with the styrenic block copolymer, it can be manufactured and used at lower temperatures. Also, with higher ductility at low temperatures, it can minimize fatigue crack even in cold weathers.

Abstract: A polymer-modified bitumen (PMB) compound for a bituminous covering layer of a roof sheet, predominantly including a distillation bitumen, in particular one which may contain a synthetic rubber filler in the form of SBS (styrene-butadiene-styrene) in an amount which modifies the properties of the distillation bitumen, wherein an additive which further modifies the bitumen is present in the form of a polymer, wherein the SBS-modified bitumen further modified by the additive has properties in respect of a softening point and penetration, wherein the polymer is polyethylene present in an amount ranging from 2.5 wt.-% to 7.5 wt.-%, the softening point is in a range between 70° C. and 170° C., and the penetration value is between 99 and 30 1/10 mm.

Abstract: A lightweight finish composition, method of production and a method of application are provided. The lightweight finish composition comprises a resin dispersion or emulsion, alkali metal phosphate, alkylolammonium salt of a polyfunctional polymer, and lightweight aggregate such as silica spheres. The lightweight aggregate has a density and weight that is less than those of sand. The combination of alkali metal phosphate and alkylolammonium salt of a polyfunctional polymer stabilizes the lightweight finish composition and may prevent the lightweight aggregate from continuously absorbing water over time, after production of the lightweight finish composition.

Abstract: The disclosure includes the use in a bituminous composition of an organogelator derivative which has a molar mass no higher than 2,000 g/mol and includes at least one hydrogen bonds donor D, at least one hydrogen bonds acceptor A and at least one compatibilizer agent C in the bitumen, the compatibilizer agent C including a group selected among: at least one straight hydrocarbon chain including at least 4 carbon atoms, or at least one aliphatic cycle of 3 to 8 atoms, or at least one aromatic cycle, or at least one aliphatic or partly aromatic, or even entirely aromatic, condensed polycyclic system, each cycle including 5 or 6 atoms taken alone or as a mixture, to improve the resistance to aggressive chemical agents, in particular to hydrocarbons, such as gasolines, diesels and/or kerosenes, excluding N,N?-ethylene bis(stearamide) and excluding fatty-chains polyamines obtained by reacting polyalkylene fatty-chains polyamines of general formula (I) R—NH—(CH2—CH2—CH2—NH)n—H wherein R is a linear hydrocarbon ch

Abstract: A modified asphalt binder composition prepared by combining asphalt binder, phosphorus pentasulfide, and less than 2.5 parts by weight unsaturated polymer, per 100 parts by weight asphalt binder, to thereby produce a modified asphalt binder composition characterized by an elongation recovery at 25° C., as determined according to AASHTO T301, of greater than 75%.

Abstract: The present invention relates to a novel bituminous material using vulcanized rubber powder from out-of-use tires, and the use of the same for the construction of sub-ballast.

Abstract: Plasticizing system which can be used for the plasticizing of a diene rubber composition, wherein it is based on an MES or TDAE oil and on a resin formed of terpene/vinylaromatic copolymer, in particular copolymer of limonene and of stirene. Rubber composition exhibiting an improved abrasion and cut resistance, the composition being based on at least a diene elastomer, a reinforcing filler, a crosslinking system and a plasticizing system comprising between 5 and 35 phr of an MES or TDAE oil and between 5 and 35 phr of such a resin formed of terpene/vinylaromatic copolymer (pce=parts by weight per hundred parts of elastomer). Process for preparing such a composition, use of the composition for the manufacture of a finished article or of a semi-finished product intended for a tire or a tire/motor vehicle connecting system, in particular a tire tread.

Abstract: The present invention provides methods of making composite materials comprising combining particles of crosslinked rubber with one or more aqueous polymer dispersion of a suspension polymer to form a mixture in aqueous dispersion, and, optionally, subjecting the aqueous dispersion mixture to solid state shear pulverization to form materials that can be processed as thermoplastics at crosslinked rubber concentrations of from 10 to as high as 95 wt. %, based on the total solids of the material. The method may further comprise kneading and/or compression molding the pulverized product to form useful articles, such as roofing membranes and shoe soles.

Abstract: The present invention provides methods of making composite materials comprising combining particles of crosslinked rubber with coagulated aqueous polymer dispersions to form a mixture in aqueous dispersion, and subjecting the aqueous dispersion mixture to solid state shear pulverization to form materials that can be processed as thermoplastics at crosslinked rubber concentrations of from 10 to as high as 95 wt. %, based on the total solids of the material. The method may further comprise kneading the pulverized product to form useful articles, such as roofing membranes and shoe soles.

Abstract: The present invention provides methods of making shapeable composites in the form of finely divided materials or articles and the materials and articles produced by the methods, the methods comprising forming mixtures by (i) treating an aqueous thermoplastic acrylic or vinyl polymer to increase the particle size thereof to a weight average particle size of 1 ?m or more, and, optionally, dewatering to form a crumb mixture; and (ii) combining a thermoplastic acrylic or vinyl polymer with one or more waste rubber vulcanizate having a sieve particle size ranging from 10 to 600 ?m in the amount of from 15 to 95 wt. %, based on the total weight of polymer and rubber to form a crumb slurry, such that (ii) can take place before, during, after (i) but before any dewatering, or after any dewatering; and (iii) thermoplastic processing the mixture. Thermoplastic processing can directly form articles, like sheets or films. The shapeable composites have excellent adhesion to other materials.

Abstract: The present disclosure relates to a concentrated binder having a very high polymer content comprising a soft aromatic petroleum base, optionally a bituminous base and at least one polymer characterized in that the polymer content in the concentrated binder is greater than or equal to 20% by weight, preferably greater than or equal to 25% by weight, and the use thereof in the preparation of a dilute bitumen/polymer binder for the fields of road applications, in particular in the manufacture of road binders, and in the fields of industrial applications.

Abstract: The disclosure relates to a bitumen/polymer composition comprising at least one bitumen and at least one graft polymer, the grafts enabling the bitumen/polymer compositions to be thermoreversibly cross-linked. The disclosure also relates to the use of said bitumen/polymer compositions in fields of application relating to roads, especially in the production of asphalt binders, and in industrial fields of application. The disclosure further relates to the method for producing said thermoreversibly cross-linked bitumen/polymer compositions.

Abstract: The present invention relates to a method for producing a crumb rubber modified asphalt comprising the steps of: a) heating a pre-selected quantity of asphalt to a temperature of between about 325° F. to 550° F.; b) adding crumb rubber and a mineral acid to the heated asphalt with stirring; and c) blowing air through the asphalt, crumb rubber and mineral acid mixture.

Abstract: The disclosure relates to a method of preparing crosslinked bitumen/polymer compositions having reduced emissions of hydrogen sulphide, in which, while operating at temperatures between 100° C. and 230° C. and with stirring, for a duration of at least ten minutes, at least one bitumen or mixture of bitumens is brought into contact with at least one polymer and at least one crosslinking agent, said crosslinking agent being represented by the general formula HS—R—SH where R represents a saturated or unsaturated, linear or branched, cyclic and/or aromatic hydrocarbon-based group having 2 to 40 carbon atoms, optionally comprising one or more heteroatoms, and that does not comprise a C?O carbonyl function and/or a O—C?O carboxylate function.

Abstract: Methods of preparing a cross-linked, polymer-modified asphalt is provided. The method involves adding a crosslinking agent to asphalt prior to the addition of a crosslinkable polymer and an acid. Asphalt prepared by the disclosed methods exhibit improved properties such as properties measured by the Multiple Stress Creep Recovery (MSCR) test.

Abstract: The disclosure relates to a method for preparing crosslinked bitumen/polymer compositions without using any crosslinking agent, wherein at least one bitumen and at least one polymeric composition including at least 80% by mass with respect to the mass of the polymeric composition, of a diblock copolymer of a monovinylaromatic hydrocarbon block and of a conjugate diene block having a molecular mass greater than or equal to 80,000 g mol?1 a content of 1-2 double bond units coming from the conjugate diene greater than or equal to 15% by mass with respect to the total mass of the conjugate diene units, are brought into contact, optionally with stirring, at a temperature between 180° C. and 220° C. for a period of 4 hours to 48 hours.