Abstract: This invention concerns a method whereby the sludge obtained when reclaiming waste lubricating oils by treating with acids or solvents can be processed by the addition of elastomers and hardeners to obtain a compound which--when used in conjunction with bituminous conglomerates and mixtures--gives these conglomerates or mixtures superior mechanical characteristics and high strength at high and low temperatures.

Abstract: (1) Polymeric compositions, suitable for use as bitumen modifiers, comprising, by weight:(a) 20-50% of an ethylene/propylene elastomeric copolymer containing from 60 to 75% by weight of ethylene, and having a value of Mooney viscosity (ML 1+4) at 100.degree. C. higher than 5;(b) 0-25% of polypropylene prevailingly constituted by isotactic macromolecules having an M.I. value higher than 1;(c) 0-70% of substantially amorphous polypropylene, possibly in mixture with amorphous copolymers of ethylene with propylene, such component (c) having a total combined ethylene content lower than 60% by weight, and intrinsic viscosity (in tetralin at 135.degree. C.) lower than 2 dl/g;(d) 0-25% of polyethylene having density comprised between 0.98 and 0.96 g/cm.sup.3, and having a value of M.I. higher than 5;(e) 0-25% of an ethylene/vinyl acetate (EVA) copolymer containing from 60 to 95% by weight of ethylene, having a value of M.I. higher than 0.

Abstract: An adhesive is provided for adhering roofing shingles wherein the adhesive is a blend of asphalt, an elastomer, a tackifying resin and a petroleum oil.

Abstract: Disclosed is a fire retardant asphalt composition. The composition comprises:(a) about 40-60% wt asphalt;(b) about 1-20% wt thermoplastic;(c) about 30-40% wt flame retarding agent; and(d) the flame retarding agent comprises:(i) about 65-80% weight monoammonium phosphate,(ii) about 5-15% weight ammonium sulfate; and(iii) about 1% weight silicone polymer.Variations of this composition have passed the UL 790 test for Class A flame retardant materials.

Abstract: An aqueous asphaltic emulsion wherein the asphaltic component is either a chemically-modified asphalt or an asphalt-elastomer blend, and the aqueous component contains water, a surfactant, and a high molecular weight, non-ionic, homopolymer of acrylamide. The emulsions find use as crack fillers for concrete or asphaltic roads and the like, or as coating compositions which can be sprayed on a building wall or the like as a waterproofing coating. The incorporation of the acrylamide ingredient into the composition ensures rapid and complete curing of other types of emulsions, and the emulsions possess physical properties and low-temperature flex properties which closely approximate those of the original asphaltic component.

Abstract: This invention provides cationic emulsions of bituminous binders of the bitumen/polymer type, formed by a dispersion of an organic phase of the binder in an aqueous phase containing a cationic nitrogenous emulsifier and a mineral or organic acid, the acid being in appropriate quantity so that the pH of the aqueous phase is comprised between 3 and 9. The aqueous phase also contains an agent consisting of at least one water-soluble sequestering salt of phosphonic acid, particularly a salt of alkaline metal or of amine of hydroxyalkyl-1,1-diphosphonic acid, and optionally a water-soluble thickening agent. To obtain the emulsions, which are usable for road applications, the emulsifying agent, the sequestering agent and optionally the thickening agent may be used in the form of a premixture containing the agents and called cationic emulsifying system.

Abstract: Compositions comprising 15 to 20% amorphous olefin copolymer, 3 to 5% ethene-propene-ethylidine norbornene terpolymer of the sequence type with 25 to 30% propene content, 6 to 8% double bonds, and raw strength 10 MPa, 60 to 82% distilled bitumen, 0 to 3% isotactic polypropylene, 0 to 15% filler and 0 to 1% antioxidizing agent, when heat-sealed to a layer of oxidized bitumen, form a stable bond therewith and thus can be used to form a waterproofing surface coat on fibrous roofing sheets.

Abstract: A low temperature self-sealing roofing adhesive blend comprising(a) 50-95% by weight of a bituminous component having an asphalt component Index (ACI) less than 0.26 and an asphaltene content less than 20% which component is a road paving asphalt or a blend of road paving asphalt and a hard resin asphalt combined in a weight ratio of between about 1:2 and about 5:1;(b) 1-6% by weight of a thermoplastic block polymer of styrene and butadiene monomers consisting essntially of between 0% and 90% of the styrene/butadiene diblock polymer having a Brookfield viscosity (25 wt. % toluene solution) at 77.degree. F. of between about 500 and about 5,000 cps and between 100% and 10% of the styrene/butadiene/styrene triblock polymer having a Brookfield viscosity (25 wt. % toluene solution) at 77.degree. F. of between about 1,000 and about 50,000 cps and(c) 4-40% by weight of an inert filler.The invention also pertains to the use of the above blend as a roofing self-sealing adhesive.

Abstract: The present invention provides an aqueous emulsion joint and crack filler capable of passing the ASTM Specification 1190 for joint and crack fillers. The emulsion solids are the reaction product of asphalt, an extender oil, a mixture of elastomers, an acrylamide and a vinyl monomer. The preferred elastomer mixture includes a liquid rubber and at least one block copolymer of styrene and a conjugated diene, such as triblock and diblock copolymers of styrene and butadiene. The preferred emulsion medium is water containing a surfactant and an acrylamide polymer. The emulsion is poured at ambient temperature into a joint or crack, and cures rapidly to ensure minimal traffic interruption.

Abstract: A composition useful in sealing punctured tires that includes asphalt, alkadiene-vinylarene copolymer, hydrocarbon resin and other materials. The composition is simple to install and lightweight.

Abstract: A water repellent composition being liquid at room temperature, which comprises a silicone oil and a substantially non-volatile paraffinic oil or low molecular weight resin, wherein the separation index of the paraffinic oil or low molecular weight resin to the silicone oil is at most 0.4.

Abstract: A bitumen-containing composition which comprises;(a) bitumen;(b) about 0.5 to about 30 parts by weight of a polymer complex per 100 parts by weight of the bitumen; and(c) about 0 to about 100 parts by weight of a filler per 100 parts by weight of the bitumen.

Abstract: A composition which contains (a) 80 to 99% w of a bitumen component; (b) 1 to 20% w of an elastomer; (c) 1 to 60% w of a hydrocarbon resin which has been modified to contain carboxyl, carboxylic anhydride, hydroxyl and/or amino groups; and (d) 1 to 100% w of an inorganic filler, the weight percentages being based on the total weight of the bitumen component and elastomer, is suitable for coating structures and a process for applying the composition at elevated temperature onto a suitbale structure.

Abstract: An adhesive is provided for adhering roofing shingles wherein the adhesive is a blend of asphalt, an elastomer, a tackifying resin and a petroleum oil.

Abstract: A membrane for waterproofing a building component, e.g., a roof or a basement wall. The membrane includes a first layer of asphalt-elastomer blend which preferably is self-adherent to the building component and an overlying layer of plastic film which bears at least one adhesive strip adhered to the plastic film. The membrane is in the form of elongated strips which are overlapped to cover the building component, and the adhesive of each strip ensures a waterproof joint between the laminae of the overlapped strips.

Abstract: Ethylene-vinyl acetate copolymers having a melt index of 700-10,000 and a vinyl acetate content of from 1-40% by weight (based on the copolymer) are used as components of bitumenous binder compositions for the surface dressing of roads to improve the temperature range of their operability, the particular EVA's are also found to have good compatibility with the types of bitumen used.

Abstract: A polyolefin-base resin composition comprising a vegetable fibrous material in fiber form containing cellulose as major constituent and a high flow rate polyolefin-base resin having a melt index of 20 to 100. By using this resin it has become possible to improve the poor processability of a conventional polyolefin-base resin composition incorporated with a vegetable fibrous material in fiber form containing cellulose as major constituent. The invention makes it possible to produce an article of large size and small wall thickness by injection molding while desirable mechanical characteristics being retained.

Abstract: Modified asphalt compositions are described which comprise(A) asphalt, and(B) a minor amount, sufficient to reduce or retard degradation of the asphalt in service, of at least one carboxy ester-containing interpolymer derived from(B-1) at least one olefin monomer, and(B-2) at least one alpha, beta-unsaturated carboxylic acid or derivative thereof, said interpolymer having (1) pendant carboxylic acid ester groups derived from the esterification of the carboxy groups of the interpolymer with at least one alcohol containing at least about 4 carbon atoms.Generally, the modified asphalt composition will contain from about 0.01 to about 10% by weight, based on the weight of the asphalt, of the ester of a carboxy interpolymer as defined. The modified asphalt compositions of the present invention are useful in roofing applications and in preparing aggregate-containing asphalt concretes which can be employed as paving compositions.

Abstract: Polyolefin reinforced asphalt paving and sealing composition containing straight chain unsaturated fatty acid having up to 30 weight percent rosin as a plasticizer, plus an adhesion control component comprising high density polyolefin fines; and a corresponding method for controlling high temperature tracking and washing characteristics without aggravating mixing or plugging problems, by replacing, at least in part, regular inorganic aggregate such as sand with high density polyolefin fines.

Abstract: Bitumen modified with a modifier comprising a defined elastomeric component and a polyolefin component containing polyethylene and polypropylene has improved high temperatures and low temperature properties which make it especially suitable for roofing applications. The elastomeric component is an ethylene propylene copolymer having a broad compositional distribution with regard to its ethylene content.

Abstract: An asphaltic coating composition in the form of an emulsion of chemically modified asphalt and a normal, non-modified asphalt in an aqueous emulsification medium. The emulsion can be used as a primer or damp-proof coating and has good adherence to concrete, wooden or asphaltic substrates to yield a coating of excellent physical properties. The chemically modified asphalt and the normal asphalt can be blended prior to emulsification, can be separately emulsified and mixed to form a blended emulsion, or can be individually emulsified in the same emulsification medium.

Abstract: A membrane for the repair of road surfaces, particularly for the retardation of reflective cracking from an old road surface to a newly-applied overlay. The membrane comprises a glass fiber mat impregnated with a blend of asphalt, a block copolymer and a mineral filler. The membrane, in the form of a complete covering or relatively small patches applied directly over a crack, is thermally adhered to the old road and to the overlay by the heat of the overlay itself. The membrane has a low modulus of elasticity, particularly at below freezing temperatures, to minimize crack-propagating stresses and to distribute both thermal and traffic stresses over a broader area of both the old road surface and the overlay.

Abstract: A binder composition which is pigmentable comprising from 30 to 99 wt % of a mineral lubricating oil extract and from 70 to 1 wt % of a petroleum resin and/or coumarone-indene resin, characterized in that the petroleum resin and/or coumarone-indene resin contains moieties derived from carboxylic acid, carboxylic acid anhydride or hydroxyl groups.

Abstract: There is provided a hot melt adhesive for bonding shaped articles and surface structures of ethylene-propylene terpolymer (EPDM) between one another, or with other materials, consisting 100 parts by weight of styrene-ethylene-butylene-styrene block copolymer rubber; 10-150 parts by weight phr (per hundred rubber) aliphatic hydrocarbon resins; 50-300 parts by weight phr (per hundred rubber) aromatic hydrocarbon resins; and up to 1,000 parts by weight phr (per hundred rubber) bitumin with a softening point, according to the Ring and Ball method (DIN test 52011), 37/44-54/59.

Abstract: This invention provides emulsions of rubberized asphalt, which are preferably extended with oil and are especially useful for chip seal, slurry seal and cold mix applications. The novel composition may be prepared by passing an aqueous surfactant-containing solution and a homogeneous gel, comprising rubberized asphalt or oil-extended rubberized asphalt through a colloid mill to provide an emulsion having a small and uniform particle size.

Abstract: Pressure sensitive bitumen-based adhesive compositions are provided which comprise bitumen, oil, an ionomeric elastomer, and gilsonite. The adhesives are particularly useful as self adherent waterproofing layers in roofing. The presence of gilsonite can result in substantial increases in the shear strength of these adhesives at the relatively high temperatures encountered in roofing applications.Also provided are waterproofing membranes comprising the inventive adhesive compositions.

Abstract: Bitumen-based pressure sensitive adhesive compositions are provided which comprise bitumen, oil, and an ionomeric elastomer. The adhesive compositions are useful as self adherent waterproofing layers, particularly in roofing applications. The use of the ionomeric elastomer permits formulation of the adhesive to have improved tack at the lower temperatures encountered in such application while maintaining desired flexibility, shear strength, and flow resistance.Also provided are waterproofing membranes comprising the inventive adhesive compositions.

Abstract: An all-weather inorganic fiber mat based roofing shingle is prepared using a novel bituminous coating formulation comprising a partially air blown asphalt combined with a styrenic elastomer and mineral stabilizer, which formulation more particularly comprises about 3 to 80% elastomeric polymer composition, 10 to 87% bituminous composition and 10 to 87% mineral stabilizer. In another embodiment, improved low and high temperature pliability and strength properties are also attained by blending recycled rubber or reclaimed rubber into the basic formulation which thereby comprises about 1 to 74% elastomeric polymer composition, 10 to 83% bituminous composition, 15 to 88% mineral stabilizer and about 1 to 74% recycled or reclaimed rubber.

Abstract: Block copolymers of the AB(BA).sub.n configuration are employed in the preparation of asphalt blend concentrates. Advantageously asphalt is blended with polymer solution from polymerization reactor and subsequently devolatilized.

Abstract: Bitumen-polymer compositions are prepared, by mixing, at between 130.degree. C. and 230.degree. C., a bitumen with a styrene and conjugated diene copolymer and a sulphur source, the copolymer and the sulphur source being added to the bitumen either directly, or in the form of a mother solution in a hydrocarbon oil, then by maintaining the whole under stirring at between 130.degree. C. and 230.degree. C. for at least fifteen minutes. By way of sulphur source is used 0.005 to 15% by weight, with respect to bitumen, one or several polymeric or not, cyclic or linear polysulphides, and especially ditertiododecyl or dinonyl pentasulphide. The bitumen-polymer compositions obtained can be used for the obtention of superficial road coverings and present a constant quality of its properties.

Abstract: A pressure-sensitive adhesive is disclosed which is prepared by hot melt blending paving grade asphalt, a depolymerized virgin rubber, a terpene resin, and a vulcanizable, non-depolymerized styrene-butadiene copolymer. These adhesives are especially useful in forming membranes by coating one side of an asphaltic based coated reinforcement with these adhesives. They are useful for highway repair and maintenance purposes and for waterproofing and show good adhesion to cementitious, for example asphaltic concrete or Portland cement concrete, substrates.

Abstract: Asphalt compositions having improved physical properties are prepared by blending into an asphalt a high vinyl rubbery polymer such as a conjugated diene/monovinyl aromatic block copolymer wherein the conjugated diene blocks contain at least about 25 percent 1,2 addition (or vinyl unsaturation based on total diene content).

Abstract: Sulfonated asphalt/hydrogenated conjugated diene-monovinyl aromatic copolymer compositions, preparations thereof, and use in well working fluid compositions.

Abstract: A cutback of a mixture of bitumen and rubber is prepared by treating a mixture of bitumen and rubber with a peroxide at 100.degree.-240.degree. C. and adding a volatile solvent. The obtained cutback can easily be sprayed on roads and shows a good retention for chippings.

Abstract: The invention comprises a plastic bituminous composition comprising:(a) 100-30% w of a mixture of(1) 40-99.8% w of a bituminous component having a penetration of less than 800 (0.1 MM) at 25.degree. C.;(2) 0.1-50% w of a block copolymer having at least two monoalkenyl arene polymer end blocks and at least one elastomeric conjugated diene mid block B;(3) 0.1-10.0% w of an (ethylene-propylene)-styrene block copolymer(b) 0-70% w of a filler.

Abstract: A thermoplastic elastomer asphalt composition is a blend of 100 parts by weight of asphalt, from about 12 to about 20 parts by weight of ground rubber containing primarily SBR, natural rubber, or polybutadiene, and from about 2 to about 8 parts by weight of a styrene-butadiene block copolymer. A block copolymer has at least two styrene blocks, each having a molecular weight of from about 5,000 to about 20,000 and may be linear or branched. The blend has good low and high temperature cohesive and adhesive properties, good low and high temperature flexibility, and good elasticity. The composition can be used as a crack sealer, a concrete joint sealer filler, an overlay sealant for construction materials, and the like.

Abstract: A pressure-sensitive adhesive is disclosed which is prepared by hot melt blending paving grade asphalt, a depolymerized virgin rubber, a terpene resin, and a vulcanizable, non-depolymerized styrene-butadiene copolymer. These adhesives are especially useful in forming membranes by coating one side of an asphaltic based coated reinforcement with these adhesives. They are useful for highway repair and maintenance purposes and for waterproofing and show good adhesion to cementitious, for example asphaltic concrete or Portland cement concrete, substrates.

Abstract: An anticorrosion perforated foil for fusion onto metal substrates comprising 60 to 90% by weight of bitumen, 0.5 to 7% by weight of styrene-butadiene rubber, 5 to 25% by weight of a bitumen modified with polymers, 0.5 to 7.5% by weight of natural resin and 0.5 to 10% by weight of organic and/or inorganic fibers stable at above 160.degree. C. and its preparation and a method of protecting metal elements from corrosion.

Abstract: A preformed membrane, suitable for road surfacing, comprises a layer of a mixture of bitumen, a linear monoalkenyl arene/conjugated diene block copolymer and a branched monoalkenyl arene/conjugated diene block copolymer.

Abstract: Stabilization of asphalt and asphalt rubber compositions against degradation, e.g., viscosity increase by addition of a finite small but effective viscosity stabilizing amount of at least one alkali metal salt of an organic or inorganic acid.

Abstract: A composition for sealing products comprising from 35 to 95 weight percent of at least one distillation product selected from the group consisting of bitumens and soft pitches, and from 5 to 65 weight pecent of a terpolymer having a melt index between 1 and 10 dg/minute and comprising: (i) from 88 to 98.7 mole percent of units derived from ethylene (ii) from 1 to 10 mole percent of units derived from an ester selected from alkyl acrylates and methacrylates, wherein said alkyl group has from 1 to 6 carbon atoms, and (iii) from 0.3 to 3 mole percent of units derived from maleic anhydride.

Abstract: An improved asphalt containing composition having desirable softening point and low temperature properties are prepared by incorporating into the asphalt a hydrogenated rubber, e.g., a hydrogenated styrene vinyl aromatic copolymer, a petroleum solvent, and an essentially amorphous silica.

Abstract: Stabilization of asphalt and asphalt-rubber compositions against degradation, e.g., viscosity increase by addition of a finite small and effective viscosity stabilizing amount of an alkali metal nitrite.

Abstract: An asphalt composition is made by mixing together asphalt, at least one alkadiene-vinylarene copolymer, a petroleum hydrocarbon resin and an amine-based antistripping agent. A fibrous mate can be coated with the above-described composition to produce an article useful for road repair applications and waterproofing purposes.

Abstract: Thermally insensitive adhesives having good adhesion to cementitious substrates and having good low temperature flexural strengths, which consists essentially of the reaction product of asphalt flux, a polymerizable vinyl aromatic monomer, a non-depolymerized rubber, a depolymerized rubber and a terpene resin are provided. These adhesives are outstandingly adapted for use as the adhesives for preformed membranes of the type which comprise an asphaltic coated fibrous reinforcement material having an asphalt based pressure sensitive adhesive on one side thereof.

Abstract: A plastics-based composition comprising a polyester resin and starch granules which, prior to mixing with the resin, are rendered reactive with the resin by a surface implant of alkali metal or alkaline earth metal ions.

Abstract: Thermoplastic elastomer compositions of the present invention comprise a blend of from about 10 to about 50 parts by weight of a crystalline 1-olefin polymer, from about 80 to about 15 parts by weight of a styrene-butadiene rubber, and from about 5 to about 50 parts by weight of bitumen. The thermoplastic blends have unexpectant increases in properties, especially tear strength, tensile strength, high temperature (100.degree. C.) tear strength, and smooth surfaces when injection molded. Moreover, the bitumen lowers the injection molding pressure, thus enabling larger parts to be molded. The compositions, which may be partially cured, also have excellent aging properties. The compositions are a true thermoplastic in that they can be repeatedly processed and yet maintain their good physical properties.

Abstract: Chemically modified asphalts having utility for road construction, repair and maintenance as well as coating for various substrates, including cementitious substrates, glass and metal are provided. These asphalts are the product produced by reacting an acrylamide, asphalt having a viscosity of less than about 120,000 cps (at 140.degree. F.), a vinyl aromatic monomer and a rubbery polymer.

Abstract: Thermoplastic elastomer compositions of the present invention comprise a blend of from about 10 to about 50 parts by weight of a crystalline 1-olefin polymer, from about 80 to about 15 parts by weight of a styrene-butadiene rubber, and from about 5 to about 50 parts by weight of bitumen. The thermoplastic blends have unexpectant increases in properties, especially tear strength, tensile strength, high temperature (100.degree. C.) tear strength, and smooth surfaces when injection molded. Moreover, the bitumen lowers the injection molding pressure, thus enabling larger parts to be molded. The compositions, which may be partially cured, also have excellent aging properties. The compositions are a true thermoplastic in that they can be repeatedly processed and yet maintain their good physical properties.

Abstract: This invention relates to asphalt composition exhibiting improved physical properties comprising asphalt, hydrogenated rubber copolymer and sulfur which compositions exhibit improved temperature viscosity stability and improved tensile properties.