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| Number | Title | Issue Date |
| 7713345 | Polyphosphate modifier for warm asphalt applications The present invention is directed to an “warm” asphalt paving composition that contains an modified asphalt binder and aggregate, wherein the asphalt binder is modified, at least in part, by the addition of a hydrated phosphate modifier to the asphalt. ... | 05/11/2010 |
| 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 |
| 7381251 | Mineral particle dispersions stabilized with a poly (oxyalkene) phosphonate The instant invention relates to a liquid composition comprising a mixture of: (1) water and/or a polar solvent; (2) a colloidal dispersion of mineral particles; and (3) a phosphonate terminated poly(oxyalkene) polymer; the invention also relates to process for stab... | 06/03/2008 |
| 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 |
| 7309390 | Strip-resistant asphalt paving composition and method for making the same The present invention is directed to a stripping-resistant asphalt paving composition that contains asphalt, aggregate, polyphosphoric acid, and an alkaline anti-stripping additive. ... | 12/18/2007 |
| 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 |
| 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 |
| 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 |
| 6808558 | 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... | 10/26/2004 |
| 6524704 | Thermal spray powder of dicalcium silicate and coating thereof and manufacture thereof A powder of dicalcium silicate is made by spray drying calcia and silica with incorporation of sodium and phosphorus or stabilized zirconia. The spray dried powder is sintered to form a thermal spray powder. Sprayed coatings have a web of interconnected, ... | 02/25/2003 |
| 6261356 | Asphalt-additive composition The present invention provides an additive for asphalt which causes an improvement in anti-stripping effect of asphalt from aggregates, and exhibits the effect quickly. That is, the present invention provides an asphalt-additive composition comprising (A)... | 07/17/2001 |
| 6139612 | Asphalt paving mix formed of recycled asphalt concrete for paving at ambient temperatures and a process for making the same An improved asphalt mix and a process for making the same are disclosed. The asphalt mix includes aggregate grains and additive oil. The aggregate grains are obtained from crushing recycled asphalt concrete at an ambient temperature to such an extent that... | 10/31/2000 |
| 6024788 | Asphalt additive The present invention provides an asphalt composition comprising an asphalt and antistripping additive comprising at least one of the compound having the formula (I), (II) or (III): [R1 O--(PO)m (EO)n ]x --P(=O)--(OH... | 02/15/2000 |
| 5820663 | Phosphate ester asphalt additives Phosphate esters of asphalt soluble, nonionic, monohydric alcohol surfactants having an HLB No. between 8-18 are odor-free low dosage anti-stripping additives for asphalt.... | 10/13/1998 |
| 5580376 | Asphalt improvement Novel compositions comprising asphalt, having improved durability, are disclosed, the compositions comprising or containing (a) from about 0.1 percent to about 5.0 percent of a metal hydrocarbyldithiophosphate, or mixture thereof, and (b) from about 0.1 p... | 12/03/1996 |
| 5484481 | Process for the colouration of building materials The present invention relates to a process for the coloration of building materials such as concrete or asphalt by granulated inorganic pigments.... | 01/16/1996 |
| 5462588 | Flame retarded asphalt composition Described is a flame retarded asphalt composition comprising: a) a bituminous composition; b) a thermoplastic elastomer; c) an inert filler; d) a halogenated flame retardant; and e) an effective flame retardant amount of a nitrogen heterocyclic compositio... | 10/31/1995 |
| 5330569 | Industrial asphalts Disclosed is a method of producing an industrial asphalt from a bituminous material. One preferred embodiment comprises mixing together without air-blowing: a. a feed material comprising a bituminous material having a viscosity of at least 50 centistokes ... | 07/19/1994 |
| 5284509 | Method for producing superior quality paving asphalt and product prepared therefrom A process for preparing a paving asphalt cement comprising two steps. In the first step, a high quality paving asphalt precursor, a low quality paving asphalt precursor, a non-paving asphalt precursor or a mixture thereof are catalytically oxidized to for... | 02/08/1994 |
| 5207891 | Composition of matter for oligomeric aliphatic ether asphaltenes as asphaltene dispersants A composition of matter useful as an asphaltene dispersant, comprising a mixture of: (a) poly[P,P'-(propylene oxide-400)phosphite) poly[di(propylene oxide--400)diol)]]-P,P diasphalenate; (b) poly[P,P'-(propylene oxide-400)phosphite -poly[di(propylene oxid... | 05/04/1993 |
| 5202056 | Composition of matter for oligomeric aliphatic ethers as asphaltene dispersants A composition of matter useful as an asphaltene dispersant, comprising a mixture of: (a) poly[di(propylene oxide-400)phosphite]-g-poly(propylene oxide-400) alcohol; (b) poly[di(propylene oxide-1000)phosphite]-g-poly(propylene oxide-400) alcohol; (c) poly[... | 04/13/1993 |
| 5075361 | Aminoacid phosphoalkylation of asphaltenes for compatibilization in bituminous liquids Asphaltenes isolated from bituminous products that have been bulk phosphochlorinated using phosphorous trichloride and amidated using aminoacids or aminoacid salts show enhanced dissolution properties when added to bituminous liquids or bituminous liquids... | 12/24/1991 |
| 5037474 | Bitumen antistripping agent A bitumen antistripping agent is prepared by reacting an epoxy compound with either phosphoric acid or a partial ester of phosphoric acid at a molar ratio of between 1:1 and 1:20.... | 08/06/1991 |
| 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 |
| 4944804 | Plaster of Paris (Stucco) as mixing aid for aqueous bituminous emulsion aggregate slurries Improved mixability (extended set time) and adhesion (asphalt coating on aggregate) are disclosed for cationic and anionic bituminous emulsion-aggregate paving slurries by the addition to the emulsion-aggregate mixture of small amounts of calcium sulfate ... | 07/31/1990 |
| 4895600 | Asphalt compositions containing anti-stripping additives prepared from amines or polyamines and phosphonates Asphalt compositions are improved by incorporating therein the reaction produce of (a) a phosphorus-containing compound, (b) an amine or polyamine and (c) a carbonyl-containing compound as an anti-stripping agent. These asphalt compositions are useful as ... | 01/23/1990 |
| 4786329 | Asphalt compositions containing anti-stripping additives prepared from amines or polyamines and phosphonates Asphalt compositions are improved by incorporating therein the reaction product of (a) a phosphorus-containing compound, (b) an amine or polyamine and (c) a carbonyl-containing compound as an anti-stripping agent. These asphalt compositions are useful as ... | 11/22/1988 |
| 4298396 | Pitch compositions The pitch compositions taught herein, upon carbonization, result in relatively oxidation-resistant carbon bodies. The compositions comprise pitch containing therein small quantities of fire retardant-like compositions having afterglow-inhibiting propertie... | 11/03/1981 |
| 4243426 | Asphalt compositions modified with organo-silane compounds A bitumen composition modified with an organo silane in which a bitumen such as asphalt is reacted with an organo silane containing ethylenic unsaturation or an organo silane containing at least one hydrogen atom bonded to the silicon atom whereby the org... | 01/06/1981 |
