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| Number | Title | Issue Date |
| 8167993 | Asphalt emulsion priming compositions and methods of use Asphalt emulsion compositions for use in priming a granular surface such as a road bed are provided. The asphalt emulsion comprises asphalt, an amphoteric emulsifier, and water. The asphalt emulsion priming composition may be used on road beds to prepare the road be... | 05/01/2012 |
| 8088210 | Bituminous composition A bituminous composition including, based on total weight of the bituminous composition, (a) hard bitumen in an amount of 0.5% to 7.5% by weight, the hard bitumen being characterized by a penetration number of 100 dmm or less at 25° C. as determined according to th... | 01/03/2012 |
| 8007581 | Incorporation of drilling cuttings into stable load-bearing structures Cuttings from drilling through or into natural rock and/or soil can be incorporated into useful, high quality load-bearing structures such as vehicle roads and pads for deep drilling rigs. This process recycles a material previously regarded as valueless at best and... | 08/30/2011 |
| 7993441 | Roadway patching composition An asphalt based mixture, which is an oil and water emulsion, comprises 15-30% V water; 34 to 80% asphalt cement dispersed as asphalt cement droplets; and 20-66% V emulsifiers. Other materials are selectively added to the composition to improve characteristics inclu... | 08/09/2011 |
| 7993442 | Method for producing bituminous paving compositions A bituminous composition with improved paving performance, comprising a high-concentration-emulsifier bituminous emulsion is disclosed. The high-concentration-emulsifier bitumen emulsion has a higher content of surfactant than the conventional bitumen emulsion, thus... | 08/09/2011 |
| 7972429 | Bituminous composition This invention relates to bituminous compositions and methods of producing the same. More particularly, the invention relates to the production of bituminous compositions formulated with performance-graded bitumen-containing solvent-free bitumen emulsions which exhi... | 07/05/2011 |
| 7922802 | PIT emulsions A PIT emulsion, including asphalt or bitumen; one or more non-ionic emulsifiers; optionally one or more cationic co-emulsifiers, and/or one or more solvents is provided. A PIT emulsion, including 10% to 70% b.w. asphalt or bitumen; 5% to 15% b.w. of one or more non-... | 04/12/2011 |
| 7905949 | Method for producing bituminous compositions This invention relates to bituminous compositions and methods of producing the same. More particularly, the invention relates to the production of bituminous compositions formulated with performance-graded bitumen-containing solvent-free bitumen emulsions which exhi... | 03/15/2011 |
| 7833338 | Method for producing bitumen compositions The present invention relates to bituminous compositions suitable for use in paving applications containing bitumen emulsion of performance-grade bitumen that is substantially free of volatile solvents and made by controlling temperature-dependent interfacial rheolo... | 11/16/2010 |
| 7789956 | Method for producing bituminous compositions This invention relates to bituminous compositions and methods of producing the same. More particularly, the invention relates to the production of bituminous compositions formulated with performance-graded bitumen-containing solvent-free bitumen emulsions which exhi... | 09/07/2010 |
| 7767015 | Bitumen emulsion-based composition The invention concerns a bitumen emulsion-based surfacing composition or bituminous mix consisting of an amphoteric surfactant and its use in road highway engineering for making materials for new roads, for reinforcing or maintaining old roads or for punctually repa... | 08/03/2010 |
| 7662225 | Aqueous bitumen emulsion The invention relates to an aqueous bitumen emulsion, comprising bitumen and a surfactant agent, made from esters or amides of glycine betaine, produced by reaction of glycine betaine with a sulphonic acid and an alcohol or amine with a fatty chain derived from vege... | 02/16/2010 |
| 7641729 | Dry clay powder for asphalt sealer and novel asphalt sealer A ball clay powder having a moisture content of less than 5% and at least about 25% of indigenous silica, said powder comprising a blend of at least two natural ball clays, wherein one of the ball clays is naturally silica rich and has at least about 40% indigenous ... | 01/05/2010 |
| 7608142 | Process for the manufacture of a bitumen-aggregate mix suitable for road paving and a polyamine compound and its use According to the invention, a slow setting bitumen-aggregate mix for cold paving is manufactured by a) preparing a cationic oil-in-water emulsion of bitumen in the presence of an emulsifier containing i) a tertiary polyamine selected from the group consisting of a d... | 10/27/2009 |
| 7547356 | Synthetic asphalt recycled tire rubber emulsions and processes for making them Synthetic asphalt and petroleum asphalt modified synthetic asphalt emulsions which contain recycled tire rubber and processes for making the emulsions at temperatures above ambient or room temperature. These emulsions may contain significant quantities of recycled t... | 06/16/2009 |
| 7510606 | Bituminous emulsions, their method of preparation and their use for the production of materials and road pavements The present invention relates to bitumen emulsions that can be used in roadmaking applications for the production of cold mixes, emulsion-stabilized gravel and road pavements obtained at ambient temperature, the cohesion of which at young age is substantially improv... | 03/31/2009 |
| 7417082 | Modified asphalt binder material using crosslinked crumb rubber and methods of manufacturing the modified asphalt binder Bituminous asphalt binder materials which are modified by the addition of crumb rubber or ground tire rubber and a cross-linking agent are described. In addition, methods are provided for producing a modified asphalt binder containing crumb rubber or ground tire rub... | 08/26/2008 |
| 7387674 | Method for solidifying soil and industrial waste, and solidified materials prepared thereby Disclosed herein are a method for solidifying soil and industrial waste and a solidified material prepared thereby. The solidified material of soil and industrial waste is prepared by adding 2-6 parts by weight of a 3-5-fold dilution of a solidifying agent and 3-15 ... | 06/17/2008 |
| 7374816 | Prefabricated membrane based on modified polyurethane bituminous binder and process for production The present invention has for its object a prefabricated sealing membrane formed by a support, coated on at least one surface, and preferably impregnated throughout, with a modified bitumen base composition, characterized in that the thermoplastic bituminous composi... | 05/20/2008 |
| 7341102 | Flue gas injection for heavy oil recovery A variety of methods for thermal recovery of natural gas and bitumen from a formation containing the latter. In general, the methods incorporate a series of existing, but previously uncombined technologies. A modified flue gas from the steam generators conventionall... | 03/11/2008 |
| 7341661 | Clarification and sorptive-filtration system for the capture of constituents and particulate matter in liquids and gases A sorptive-filtration system for removing at least one of negatively or positively charged ions, complexes or particulates from an aqueous stream. The system includes a) flow formed substantially from at least one of rainfall-runoff or snowmelt-runoff; b) a filter c... | 03/11/2008 |
| 7335251 | Method for enhancing the physico-chemical properties of bitumen compositions and novel bitumen compositions with enhanced properties and their uses The invention concerns method for enhancing the physico-chemical properties of bitumen compositions and novel bitumen compositions with enhanced properties and their uses by mixing a functionalized amorphous silica made by combining amorphous silica with a coupling ... | 02/26/2008 |
| 7312262 | Methods and compositions for microsurfacing A composition for microsurfacing of pavement is described. The composition includes a polymer-modified emulsion asphalt oil, water, cement, and crushed aggregate. The crushed aggregate includes a first portion having an L.A. abrasion resistance which is higher than ... | 12/25/2007 |
| 7309391 | Aluminum flake pigment comprising aluminum flakes as basic particles, method of manufacturing the same, and paint and ink employing the same An aluminum flake pigment containing aluminum flakes as basic particles, said aluminum flakes having an average particle diameter in the range of 3 to 20 μm and an average value of minimum diameter/maximum diameter of at least 0.6. ... | 12/18/2007 |
| 7297204 | Water-in-oil bituminous dispersions and methods for producing paving compositions from the same There is provided a method for making bituminous compositions comprising water-in-oil bituminous dispersion and aggregate by the steps of: preparing a solvent-free, water-in-oil bituminous dispersion comprising: (1) bitumen, in an amount from about 75.0% to about 95... | 11/20/2007 |
| 7279017 | Method for converting heavy oil residuum to a useful fuel A method for enabling the use of heavy oil residuum by conversion to a useful product. The method, in one embodiment, involves the use of a heavy oil residuum which is substantially non flowable. The viscosity of the residuum is reduced by heat or a combination of h... | 10/09/2007 |
| 7226500 | Additive for heating asphalt The invention provides an additive for heated asphalt that can further improve a peeling prevention effect between asphalt and aggregates. The invention relates to an additive which is added to heated asphalt containing a particular gallic acid ester with or combina... | 06/05/2007 |
| 7226501 | Process for the manufacture of a bitumen-aggregate mix suitable for road pavement The present invention relates to an aqueous quick-setting bitumen-aggregate mix suitable for cold pavement of roads, parking places, sidewalks and the like. The bitumen-aggregate mix is manufactured by mixing a mineral aggregate, water, a de-emulsifier, containing h... | 06/05/2007 |
| 7213446 | Method of selecting a bituminous emulsion based on its coalescence A method of selecting a bituminous emulsion with enhanced performance for paving is provided. This method includes selecting polymer modified bitumen with a penetration value of about 25 to 450 dmm at 25° C. and selecting one or more emulsifiers comprised of at lea... | 05/08/2007 |
| 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 |
| 7137305 | Stability-enhancing admixture and improved base stabilization process for use in roadway construction and reconstruction The present invention provides a process for stabilizing the base course of a roadway through steps including admixing an asphalt emulsion and Portland cement with granulated base materials. The base course formed through this process is stronger and less permeable ... | 11/21/2006 |
| 7134806 | Repairing road surfaces A method of repairing a road surface includes providing a hopper mounted on a spreading vehicle and means to spread material carried in the hopper over depressed areas of the road surface to fill them with the material. At ambient temperature, a batch of patching sl... | 11/14/2006 |
| 7128780 | Process for producing building materials from raw paint sludge A process for producing building materials, such as asphalt, cement, concrete, mortar, or plaster board from liquid paint sludge containing water and paint solids produced from overspray in commercial paint booth operations. The preferred embodiment comprises adding... | 10/31/2006 |
| 7118624 | Method for making a road base material using treated oil and gas waste material The present invention provides a novel method to produce grade road base material using recycled oilfield waste, called “oil and gas waste,” more specifically, drilling waste and aggregate and a novel road base material. Hydration and mixing of the waste materia... | 10/10/2006 |
| 7097703 | Use of anti-strip agents to improve wear characteristics of pavement sealer A sealer base comprising at least one anti-wear agent comprising aliphatic carboxylic acids and aliphatic polyamides is disclosed. ... | 08/29/2006 |
| 7094283 | Bituminous product and process for preparing it The subject of the present invention is a process for preparing a bituminous product, characterized in that a compound based on a phosphoric or polyphosphoric acid supported on a mineral oxide of high porosity is used. The subject of the invention is also the bitumi... | 08/22/2006 |
| 7067050 | Petroleum hydrocarbon binder with reduced polycyclic aromatic hydrocarbon content A binder pitch material includes a petroleum pitch and asphalt fraction obtained from petroleum crude oil and has a significantly lower polycyclic aromatic hydrocarbon composition than a coal tar pitch having a like softening point. The pitch material is useful as a... | 06/27/2006 |
| 7041165 | Method for making cold-process bituminous mix The invention concerns a method for making cold-process bituminous mixes, using a bitumen-type emulsion in aqueous phase and aggregates. It consists of treating said aggregates with an agent providing hydrophobicity, prior to mixing said emulsion with said aggregate... | 05/09/2006 |
| 7037488 | Hair wax product with reduced density A hair wax product is made by a process, in which a solid wax composition is heated to melt or soften it and then foamed with a gas in a mixer that applies shear energy to it. The gas is preferably air or a non-reactive gas, such as nitrogen. The gas is introduced t... | 05/02/2006 |
| 7029202 | Method for treating metal-contaminated water and soil A method for removing metal contaminants from water uses lignin derivatives, such as lignosulfonates and kraft lignin, a coagulant, such as a metal salt, and a pH-increasing composition. The lignin derivative is dispersed in the contaminated water, the coagulant is ... | 04/18/2006 |
