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| Number | Title | Issue Date |
| 7998265 | Asphalt compositions and the preparation thereof Asphalt compositions and methods of forming such are described herein. The asphalt compositions and methods of forming such are generally adapted to enable open air processing while producing asphalt compositions that exhibit properties capable of meeting SUPERPAVEâ... | 08/16/2011 |
| 7824485 | Asphalt compositions and the preparation thereof Asphalt compositions and methods of forming such are described herein. The asphalt compositions and methods of forming such are generally adapted to enable open air processing while producing asphalt compositions that exhibit properties capable of meeting SUPERPAVEâ... | 11/02/2010 |
| 7544239 | Reduction of sulfur emissions from crude fractions Methods of modifying crude fractions are described herein. The methods generally include blending a crude fraction with an emissions reducing additive to form a modified crude fraction, wherein the modified crude fraction exhibits reduced sulfur emissions. The emiss... | 06/09/2009 |
| 7329399 | Hydrogen trapper compound, method for the production and uses thereof A hydrogen-trapping compound is provided, along with a process for manufacturing the compound, and its uses, wherein the hydrogen-trapping compound is characterized in that it contains at least one metal salt of formula MX(OH), in which M represents a divalent trans... | 02/12/2008 |
| 7186765 | Method for preparation of stable bitumen polymer compositions The present invention provides a method for preparing an asphalt and thermoplastic elastomer composition. The process comprises heating an asphalt cut in a stirred tank to a temperature sufficient to allow the stirring of the asphalt in the tank. A thermoplastic ela... | 03/06/2007 |
| 7179017 | Low-viscosity, silicone-modified penetrating asphalt sealer to eliminate water associated problems in asphalt pavements A solvent-based solution including methods of making and using for treating and protecting for heavy traffic asphalt pavement, particularly against water-associated problems, such as repeated freeze/thaw cycles, and damage caused by exposure to UV light. The mechani... | 02/20/2007 |
| 7026384 | Process for the preparation of an aqueous dispersion of halogenated vinyl polymers involving a basic after-treatment The invention relates to a process for the preparation of an aqueous dispersion of halogenated vinyl polymers by polymerization, according to which, after polymerization, a basic agent is added in an amount such that the pH of the aqueous dispersion is less than app... | 04/11/2006 |
| 6855754 | Asphalt-based formulations and method of making and using the same for paving and coating applications An asphalt-based, cold paving/coating formulation that provides increased flexibility with respect to the choice of aggregate types, asphalt emulsion types, type and amount of the surfactants used to produce the asphalt emulsion, asphalt emulsion pH's and applicatio... | 02/15/2005 |
| 6627065 | Liquid galvanic coatings for protection of imbedded metals Coating compositions and methods of their use are described herein for the reduction of corrosion in imbedded metal structures. The coatings are applied as liquids to an external surface of a substrate in which the metal structures are imbedded. The coati... | 09/30/2003 |
| 5944885 | Paving mixture excellent in mixing property and compacting property A paving mixture excellent in mixing property and compacting property, which relaxes temperature condition conventionally required for a paving mixture, and can maintain certain quality and durability even if blending ratio condition conventionally requir... | 08/31/1999 |
| 5658972 | Fire retardant plastic construction material Fire retardant plastic construction materials containing a fire retarding quantity of the oxidation product of certain asphalts.... | 08/19/1997 |
| 5405439 | Bitumen emulsion A method for preparing a bitumen emulsion which comprises forming the emulsion from bitumen, water, emulsifying agent, inorganic acid and metal salt, said metal being selected from lithium, sodium, potassium, magnesium, calcium and aluminum wherein the bi... | 04/11/1995 |
| 5224990 | Surfactant-modified bituminous emulsions An improved clay-stabilized bituminous emulsion surface-coating composition and method of preparation therefore, including an aqueous bituminous emulsion and a surfactant selected from the group consisting of neutral polyamines, partially and fully acid-n... | 07/06/1993 |
| 5224992 | Retarding skin formation on hot asphalt Organotin hydrides are effective in retarding oxidative skin formation in asphalts maintained at elevated temperature.... | 07/06/1993 |
| 5039342 | Modified asphalt cement compositions and methods of producing the same Chemical modified asphalt cements are produced by reacting bituminous materials with ethylenically unsaturated monomers.... | 08/13/1991 |
| 5017230 | Asphalt additive compositions Asphalt additive compositions are described which comprise (A) a metallic organic strength improving compound and (B) an anti-strip compound. The metal of said metallic organic compound is selected from the group consisting of manganese, cobalt, copper, v... | 05/21/1991 |
| 5000835 | Method of reducing H2 S in asphalt In a refinery operation for producing asphalt, a metal organic acid salt is used to reduce H2 S caused by thermal decomposition of hydrocarbons in the asphalt.... | 03/19/1991 |
| 4975176 | Process for the production of bitumens of a high penetration value, apparatus for carrying it out, and products thus obtained The process permits to produce bitumens having a high penetration value by oxidation of base bitumens with small volumes of gaseous oxidizers, preferably air, at a temperature between 170° and 250°, preferably 200° C., by turbodispersion of the gaseous... | 12/04/1990 |
| 4921539 | Modified pitch specially adapted to bind coal particles The invention concerns a modified pitch composition specially adapted to bind coal particles with the purpose of transforming it into briquettes; the pitch is modified by reaction with an unsaturated dicarboxylic acid or anhydride thereof, and at least on... | 05/01/1990 |
| 4908064 | Road asphalt composition Asphalt used for road paving containing catalytic cracking catalyst particles which have been burned to remove hydrocarbons deposited thereon during a petroleum catalytic cracking process. The catalyst particles may be present in the asphalt in amounts of... | 03/13/1990 |
| 4898617 | Working material for construction or repair A working material for construction or repair comprising (A) a mixture of 0.5 to 30% by weight of (a-1) a hydroxide of a divalent or higher basic metal, 10 to 99% by weight of (a-2) an aggregate and 0.5 to 70% of (a-3) a bituminous substance, the total am... | 02/06/1990 |
| 4629510 | Method for producing industrial asphalts without air-blowing using zinc chloride Disclosed is a one-step method of producing an industrial asphalt from a bituminous material which comprises mixing together without air-blowing: (a) a feed material comprising a bituminous material having a viscosity of at least 50 centistokes at 350 degrees ... | 12/16/1986 |
| 4488971 | Process for even division of substances and mixtures of substances in the course of manufacture of pulverulent preparations by chemical reaction A method for forming a uniform distribution of a substance in calcium hydroxide to obtain pulverulent preparations. The substances are those particularly in a fluid stage such as a solvent, emulsion or suspension.... | 12/18/1984 |
| 4460723 | Asphalt compositions 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.... | 07/17/1984 |
| 4348237 | Additive composition and method of using same An additive composition and a method for using same are disclosed. The additive is useful in preparation of foamed bitumens such as asphalt used in manufacture of bituminous pavements. The additive is comprised of a metal stearate and a carrier oil, and i... | 09/07/1982 |
| 4285734 | Chemically modified bitumen composition A chemically-modified bitumen composition prepared by reacting a bituminous material with a chromium complex. The composition can be used to coat fillers and glass fibers, either in the form of individual filaments or bundles of glass fibers. The coated f... | 08/25/1981 |
| 4260423 | Kiln tar binder and method of producing it A bituminous binder, useful in the production of form coke, is obtained by reacting kiln tar recovered from a form coke oven with formaldehyde in the presence of a mineral base until the ASTM Ring and Ball softening point is at least about 58° C. Calcium... | 04/07/1981 |
| 4251577 | Asphalt-coated glass fibers Glass fibers, either in the form of individual filaments or bundles of glass fibers, which have been coated with a chemically-modified asphalt prepared by reacting a bituminous material with a chromium complex. The coated fibers can be used as reinforceme... | 02/17/1981 |
| 4234346 | High strength modified asphalt paving composition A paving composition formed of aggregate mixed with substantially unblown asphalt cement (neither emulsified nor cut-back) including a soluble organic-manganese compound either alone or in combination with organic-cobalt or organic-copper compounds for im... | 11/18/1980 |
| 4094686 | Road-surface additive for preventing ice and melting snow An additive for admixture with road surface preparation materials to prevent formation of ice and to melt snow on the finished road surface. The additive is distributed throughout the road surface and comprises coated particles of a halide, e.g. calcium c... | 06/13/1978 |
| 4012537 | De-icing compositions contained in road surface material A composition for admixture with road surface preparation materials to prevent formation of ice and to melt snow on the finished road surface. The composition is distributed throughout the road surface and comprises particulate thawing substances at least... | 03/15/1977 |
| 3994735 | Coating composition A coating composition of tar-epoxy resin or tar-polyurethane resin which comprises using as the tar component, cresol tar (i.e. the distillation residue having a boiling point of not lower than 200° C in the preparation of cresols using cymene), the comp... | 11/30/1976 |
