Class / Patent application number | Description | Number of patent applications / Date published |
106277000 | Bituminous emulsion | 22 |
20080276834 | BITUMINOUS ROADBUILDING MATERIALS, IN PARTICULAR COLD MIXES AND EMULSION-STABILIZED GRAVEL, AND ROAD PAVEMENTS FORMED FROM THESE MATERIALS - Bituminous roadbuilding material obtained by impregnating, coating or contacting an aggregate, a recycling material, a coated aggregate or a mixture of these products with a bituminous emulsion (E), characterized in that the bitumen particles of the bituminous emulsion (E) used for the impregnating, coating or contacting comprise a fraction (F) representing 10 to 40% of the bitumen particles and having a median diameter of less than or equal to 0.6 μm, preferably of between 0.1 μm and 0.6 μm, the remainder of the bitumen particles of the emulsion having a median diameter of greater than or equal to 1 μm, preferably of between 1 and 20 μm. The material is advantageously composed of cold mixes or of emulsion-stabilized gravel. | 11-13-2008 |
20100000442 | APPARATUS FOR PRODUCING COLD ASPHALT, METHOD OF MANUFACTURING COLD ASPHALT, AND PRODUCT-BY-PROCESS FOR SAME - Apparatus for producing cold asphalt, such as for road repair and construction, that allows cold asphalt to be easily produced at or near the job site. The apparatus includes at least one hopper for receiving screened particulates, an optional second hopper for granular materials, e.g., sand, a live feed for additive oil, and another for optional lime, conveyors in which to convey the granular and screened particulates, oil, and optional lime to a mixer. The mixer is controlled through a controller that is programmed to determine the correct proportion of RAP (recycled asphalt and a small amount of new asphalt), optional sand (silicates and/or sieved RAP), additive hydrocarbon oil, and optional lime (limestone powder). The apparatus may be permanently installed to create a cold asphalt manufacturing plant or placed on a trailer for use at a construction site. The invention further includes a heatless method of manufacturing cold asphalt through the introduction of RAP, additive oil, and optional sand and lime into the apparatus and a product-by-process in which cold asphalt mix is produced through the process claimed in the method. The end product is essentially non toxic with little to no VOCs and HAPs, has long shelf-life, and is produced, stored, used, and compacted at ambient temperature. | 01-07-2010 |
20100116172 | METHOD FOR MAKING A DISPERSION - The present disclosure relates a method of making a dispersion. Microparticles, nanoparticles and an asphalt component are mixed to form a dispersion. A sufficient amount of nanoparticles provides for an increase in material throughput relative to a comparable dispersion that is free of nanoparticles. | 05-13-2010 |
20100170416 | 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-ionic emulsifiers; 0 to 5% b.w. of one or more cationic co-emulsifiers; and 0 to 40% b.w. of one or more solvents, where the quantities shown add up to 100% b.w. with water, and optionally other auxiliaries and additives is also provided. A method for making a finely-divided asphalt or bitumen PIT emulsion, including subjecting an aqueous mixture of asphalt or bitumen, at least one non-ionic emulsifier, and optionally a solvent to vigorous stirring to obtain a homogenous composition; heating the homogenous composition above the phase inversion temperature to obtain a PIT emulsion, and cooling the PIT emulsion is also provided. | 07-08-2010 |
20100192804 | BITUMINOUS COMPOSITION WITH THERMOREVERSIBLE PROPERTIES - The invention relates to a bituminous composition that comprises a major portion of at least one bitumen and a minor portion of at least one chemical additive, said additive being an organogelling agent that generates a network of hydrogen bonds between the organogelling molecules constituting the same, and trapping the bitumen phase up to a maximum temperature T | 08-05-2010 |
20100206197 | BITUMINOUS COMPOSITION, FABRICATION PROCESS AND USE THEREOF IN ROAD ENGINEERING - The invention concerns a fabrication method of a bituminous emulsion, consisting in the use of a primary bitumen emulsion, possibly diluted, characterized by a median diameter of less than 2 μm, as aqueous phase of a secondary bitumen emulsion characterized by a median diameter of more than 2 μm, wherein the final emulsion thus obtained is characterized by a bitumen content of 50% to 95% by weight, a STV viscosity at 40 C through the 4 mm orifice of less than 300 s and a settling tendency of less than 10% as determined by means of assay EN 12847. | 08-19-2010 |
20110005429 | ADDITIVE MIX FOR ASPHALT MIXTURE PREPARATION - The present invention relates to bitumen additive mixtures, their use and application for the fabrication of asphalt mixtures used in pavement and waterproofing, and more specifically for construction, repair and maintenance of sidewalks, roads, highways, parking lots or airport runaways and service roads and any other rolling surfaces. | 01-13-2011 |
20110113985 | METHODS AND ARRANGEMENT FOR CREATING ASPHALT EMULSION - A method for creating asphalt emulsion is provided. The method includes heating a base asphalt. The method also includes injecting the base asphalt into a colloid mill. The method further includes breaking up the base asphalt into small particles. The method yet also include preparing a soap solution, wherein the soap solution includes an acid, water, and a first emulsifier, wherein the first emulsifier is an alkyl amines salt based emulsifier. The method yet further includes combining the small particles of the base asphalt with the soap solution to create the asphalt emulsion. | 05-19-2011 |
20110168055 | Use of a (1>3)-Beta-D-Glucan as an Emulsion Stabiliser - The present invention relates to the use of a (1→3)-β-D-glucan as an emulsion stabiliser. The present invention further relates to emulsions comprising a (1→3)-β-D-glucan in an amount of 0.01 to 10 wt. %, based on the total weight of the emulsion. The present invention also relates to bitumen binder compositions comprising a (1→3)-β-D-glucan in an amount of 0.005 to less than 0.1 wt. %, based on the total weight of the bitumen binder composition. The present invention further relates to emulsions comprising a novel biodegradable emulsifying agent, in particular in combination with a (1→3)-β-D-glucan. | 07-14-2011 |
20120125232 | Bituminous Composition - This disclosure relates to bituminous compositions and methods of producing the same. More particularly, the disclosure relates to the production of bituminous compositions formulated with performance-graded bitumen-containing solvent-free bitumen emulsions which exhibit controllable, temperature-dependent interfacial rheology. When employed in paving applications, these bituminous compositions develop adhesive strength and load-bearing strength properties at rates comparable to traditional hot mix paving compositions and at rates faster than traditional cold mix paving compositions. | 05-24-2012 |
20120325116 | METHOD FOR MANUFACTURING COLD ASPHALT, AND PRODUCT-BY-PROCESS FOR SAME - A heatless method of manufacturing cold asphalt, such as for road repair and construction, that may be easily produced at or near a job site. The method includes the introduction of RAP (recycled asphalt and a small amount of new asphalt), additive oil, and optional sand (silicates and/or sieved RAP) and lime (limestone powder) into mixing apparatus. The mixing apparatus includes two hoppers: one hopper for RAP and a second hopper for RAP or sand; a live feed for additive oil; and another for optional lime; conveyors; and a controller that is programmed to determine the correct proportion of RAP, optional sand, oil, and optional lime. The invention also includes a product-by-process in which cold asphalt mix is produced. The end product is essentially non-toxic with little to no VOCs and HAPs, has long shelf-life, and is produced, stored, used, and compacted at ambient temperature. | 12-27-2012 |
20130008344 | ASPHALT-MINERAL COMPOSITIONS - The present invention is related to asphalt and asphalt-mineral compositions including at least one cationic organosilicon compound selected from a group consisting of:
| 01-10-2013 |
20130068135 | PROCESS FOR MANUFACTURING COLD BITUMINOUS MIXES, COLD BITUMINOUS MIXES WITH CONTROLLED WORKABILITY AND USE THEREOF FOR PRODUCING ROAD PAVEMENTS - The present invention relates to a process for producing cold bituminous mixes, comprising the following successive steps: a. in a mixer, coating, at ambient temperature, all of the solid mineral fractions with all of the binder in emulsion, and optionally a portion of fluxing agent, over a time interval T sufficient to observe a coating of the mix; then b. at the end of the time interval T, adding the remaining amount of fluxing agent, over a time interval t, such that the T/t ratio is greater than 2, the other mixing conditions of steps a) and b) being otherwise substantially identical. The present invention also relates to cold bituminous mixes, capable of being obtained by the process according to the invention and the use thereof for the production of wearing courses, the production of emulsion-stabilized gravels or the production of storage-grade mixes. | 03-21-2013 |
20130104772 | Methods for Changing Stability of Water and Oil Emulsions | 05-02-2013 |
20130228098 | BITUMINOUS COMPOSITION - A bituminous composition comprising a bitumen emulsion in an amount from about 2% to about 10% by total weight of the bituminous composition, and aggregate in an amount from about 90% to about 99% by total weight of the bituminous composition, wherein the bituminous composition is at a temperature range of about 50° C. to about 140° C. The bitumen emulsion comprises hard bitumen in an amount from about 50% to about 75% by total weight of the bitumen emulsion, the hard bitumen being characterized by a penetration number of about 100 dmm or less at 25° C. as determined according to the AASHTO Method T49, and an emulsifier in an amount from about 0.05% to about 2% by total weight of the bitumen emulsion, the emulsifier having a Hildebrand solubility parameter of at least of about 19 (MPa)½. Also disclosed are the methods of producing and using such bituminous compositions. | 09-05-2013 |
20140076199 | CATIONIC MINIMAL TRACKING ASPHALT EMULSION - The cationic asphalt material of the present invention has minimal tracking, fast drying bonding to material and allows for quick turn around in road construction. It has been designed as a joint sealer that can be used successfully as a tack coat or fog seal. The fast drying bonding material allows plant mix asphalt to be put clown in minutes from initial application. | 03-20-2014 |
20140230693 | Additive for Asphalt Mixes Containing Reclaimed Bituminous Products - The present invention relates to a method of improving the incorporation of recycled bituminous products by using at least one surfactant as an alternative to the known rejuvenating oils, for the preparation of asphalt mixes containing recycled bituminous products. The use of such alternative surfactant(s) results in better mechanical properties of the asphalt mix, while using smaller amounts of fresh bitumen and greater amounts of recycled bituminous products. | 08-21-2014 |
20140261077 | ASPHALT EMULSIFIERS DERIVED FROM PYROLYZED WOOD - Asphalt emulsifiers and asphalt emulsions comprised of alkali metal or ammonium salts of a biomass pyrolysis oil, such as a pyrolytic wood tar oil, where the biomass pyrolysis oil is used as made from a pyrolysis process with only water washing, are disclosed. | 09-18-2014 |
20140373750 | SPRAYABLE COATING COMPOSITION AND METHOD FOR ASPHALT SURFACES - A sprayable coating composition, and method of application, for coating asphalt paving surfaces. In the coating composition, a low bulk density aggregate material of sprayable particle size is suspended in a sprayable asphalt emulsion in an amount sufficient to increase the micro-texture surface roughness of the cured coating. | 12-25-2014 |
20160002465 | COMPOSITIONS AND METHODS FOR HOT AND WARM MIX ASPHALT CONCRETE ADDITIVES - Disclosed herein are formulations for, and methods of making and using hot and warm mix asphalt concrete and additives in the production of asphalt to improve the quality and performance of said asphalt concrete. | 01-07-2016 |
20160060421 | CHEMICAL COMPOSITION FOR DUST SUPPRESSION AND SOIL STABILIZATION - A chemical composition for dust suppression and soil stabilization includes a mixture of water-based asphalt emulsion and magnesium chloride solution. | 03-03-2016 |
20160122544 | BITUMEN IN WATER EMULSIONS AND METHODS OF MAKING SAME - A method of stabilizing a bitumen-in-water emulsion comprising contacting (i) bitumen, (ii) water, and (iii) an alkoxylated humus material to obtain a stabilized bitumen-in-water emulsion, wherein the alkoxylated humus material comprises an ethoxylated humus material, a C3+ alkoxylated humus material, or combinations thereof. A method of stabilizing a bitumen-in-water emulsion comprising contacting (i) bitumen, (ii) water, and (iii) an alkoxylated humus material to obtain a stabilized bitumen-in-water emulsion, wherein the alkoxylated humus material comprises an ethoxylated lignite, and the bitumen is extracted from the Orinoco Oil Belt in Venezuela. A stabilized bitumen-in-water emulsion comprising bitumen, water, and an alkoxylated humus material wherein the alkoxylated humus material comprises an ethoxylated humus material, a C3+ alkoxylated humus material, or combinations thereof. | 05-05-2016 |