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| Number | Title | Issue Date |
| 8163675 | Emulsifier based on polyamines and fatty acid/maleic anhydride The present invention generally relates to a polyamide emulsifier, to a drilling fluid composition that comprises said emulsifier and to a method of drilling a borehole into a subterranean formation utilizing the drilling fluid composition of the invention. ... | 04/24/2012 |
| 8049039 | Process for preparation of alkoxylated alkylamines/alkyl ether amines with peaked distribution The present invention generally relates to a process for preparing alkoxylated alkylamines and/or alkyl ether amines. The process consists of two stages and utilizes a catalyst with a multiple-charge counterion. The alkoxylated alkylamines and alkoxylated alkyl ethe... | 11/01/2011 |
| 8034979 | Alkoxylated alkylamines/alkyl ether amines with peaked distribution The present invention generally relates to a process for preparing the alkoxylated alkylamines and/or alkyl ether amines. The process consists of three stages, and utilizes an alkali catalyst. The alkoxylated alkyl amines and alkoxylated alkyl ether amines prepared ... | 10/11/2011 |
| 7987866 | Zwitterionic surfacant together with an anionic ether-containing surfactant as a drag-reducing agent The present invention relates to the use of a zwitterionic surfactant in combination with an ether sulphate or ether carboxylate surfactant in a water-based system as a drag-reducing agent. The combination has besides a high drag-reducing effect also a low sensitivi... | 08/02/2011 |
| 7954643 | Use of a derivative of aspartic acid as a collector in froth flotation processes A derivative of aspartic acid is used as a collector for a phosphate containing mineral, such as apatite, in a froth flotation process. According to the invention the collector has a high selectivity for phosphate containing minerals even in the presence of carbonat... | 06/07/2011 |
| 7942941 | Pour point depressant additives for oil compositions The present invention generally relates to oil compositions, primarily to fuel oil and petroleum compositions produced there from susceptible to wax formation at low temperatures, to polymeric amides for use with such fuel oil compositions, and to methods for their ... | 05/17/2011 |
| 7777065 | Removal of residual sulfur dioxide from dimethyl sulfate The present invention relates to a method of removing SO2 contaminants from dimethyl sulfate (DMS) by treatment with an oxidizing agent, and to a process for the preparation of odor free fatty acid trialkanolamine esters quaternized with DMS which is subs... | 08/17/2010 |
| 7776798 | Quaternary ammonium salts as thickening agents for aqueous systems This invention relates to the use of alkyl amido quaternary ammonium salts, and formulations thereof, as thickening agents in aqueous based fluids, especially those used in oil field applications. The quaternary ammonium salts of the present invention exhibit improv... | 08/17/2010 |
| 7708000 | Archery bow having improved design to absorb shock reduce vibration The present invention generally relates to an improved archery bow having a greatly enhanced ability to absorb shock, vibration and sound. In order to achieve improved sound and vibration dampening, the bow riser, and optionally the bow limbs are coated with an ener... | 05/04/2010 |
| 7691960 | Citric acid based emulsifiers for oilfield applications exhibiting low fluorescence The present invention relates to a composition of citric acid based emulsifiers comprising polyamides for oilfield drilling applications that exhibit very low fluorescence, and to a process for their preparation. ... | 04/06/2010 |
| 7674817 | Antimicrobial acid-catalyzed coating compositions The antimicrobial acid-catalyzed coating composition of the invention is an acid-catalyzed coating composition formulated with at least one antimicrobial agent to provide antimicrobial activity to the coating composition and an article coated therewith. ... | 03/09/2010 |
| 7671006 | Phosphated alcanol, its use as a hydrotrope and cleaning composition containing the compound The present invention relates to the use of phosphated 2-propylheptanol or a phosphated 2-propylheptanol alkoxylate as a hydrotrope in aqueous alkaline solutions for a C8-C18-alcohol alkoxylate containing 1-20 ethyleneoxy units. It also relates... | 03/02/2010 |
| 7666963 | Hybrid copolymers Hybrid copolymers for use as anti-scalant and dispersant. The polymers are useful in compositions used in aqueous systems. The polymers include at least one synthetic monomeric constituent that is chain terminated by a naturally occurring hydroxyl containing moiety.... | 02/23/2010 |
| 7662306 | Polysilicate microgels The present invention generally relates to polysilicate microgels. More specifically, the invention relates to a process for preparing aqueous polysilicate microgels which comprises mixing an aqueous solution of alkali metal silicate with an aqueous phase of silica-... | 02/16/2010 |
| 7619103 | Arylation and the skeletal isomerization of fatty acid and alkyl esters thereof using metal ion exchanged solid materials as catalyst The present invention generally relates to a process for the arylation of unsaturated linear fatty acids and/or alkyl esters thereof to their aryl branched counterparts. Said arylation process comprises contacting said unsaturated linear fatty acids and/or alkyl est... | 11/17/2009 |
| 7608576 | Wetting composition and its use The present invention relates to an aqueous alkaline composition with good wetting ability, which composition is dilutable with water without exhibiting any phase separation. The composition contains a surface active nonionic alkylene oxide adduct of an alkyl-branch... | 10/27/2009 |
| 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 |
| 6805701 | Method of enhancing immune response The present invention generally relates to a method for the site specific enhancement of cytokine release (through chemotaxis) namely beta chemokines and enhance healing via an enhanced overall immune response. The site specific enhancement of cytokine release is ac... | 10/19/2004 |
| 7534760 | Highly alkaline compositions containing a hexyl glycoside as a hydrotrope The present invention relates to a clear and stable, highly alkaline composition with controlled foaming, containing a high amount of surface active nonionic alkylene oxide adduct and a hexyl glycoside as a hydrotrope. This composition has a very good wetting and cl... | 05/19/2009 |
| 7504498 | Process for the manufacture of methyl cellulose ether A water-soluble methyl cellulose ether, having a flocculation point below 100° C., is manufactured by reacting methyl chloride and a cellulose activated by mercerizing the cellulose with aqueous alkali in the presence of a C2-C3 alkyl chloride... | 03/17/2009 |
| 7456144 | Phosphated alcanol, its use as a hydrotrope and cleaning composition containing the compound The present invention relates to the use of phosphated 2-propylheptanol or a phosphated 2-propylheptanol alkoxylate as a hydrotrope in aqueous alkaline solutions for a C8-C18-alcohol alkoxylate containing 1-20 ethyleneoxy units. It also relates... | 11/25/2008 |
| 7438070 | Archery bow having improved design to absorb shock and reduce vibration The present invention generally relates to an improved archery bow having a greatly enhanced ability to absorb shock, vibration and sound. In order to achieve improved sound and vibration dampening, the bow riser, and optionally the bow limbs are coated with an ener... | 10/21/2008 |
| 7358215 | Quaternary ammonium salts as thickening agents for aqueous systems This invention relates to the use of alkyl amido quaternary ammonium salts, and formulations thereof, as thickening agents in aqueous based fluids, especially those used in oil field applications. The quaternary ammonium salts of the present invention exhibit improv... | 04/15/2008 |
| 7326814 | Minimization of volatile organic sulphur byproducts in dimethyl sulfate quaternization of amines made with hypophorous acid The present invention relates to a process for the minimization of volatile organic sulphur byproducts in dimethyl sulfate quaternization of amines made with hypophosphorous acid, which leads to the formation of an odor stable product. ... | 02/05/2008 |
| 7319146 | Nonionic cellulose ether and its use The present invention relates to a nonionic methyl ethyl hydroxyethyl cellulose ether having a flocculation temperature of 70-95° C., a DS-methyl of 0.1-0.8 and a DS-ethyl of 0.1-0.7. The cellulose ether has versatile properties and may be used as a thickening agen... | 01/15/2008 |
| 7318477 | Method and composition for cleaning a well bore prior to cementing The invention generally relates to a spacer system for cleaning a section of a subterranean well borehole and casing prior to cementing. The spacer system of the invention comprises a at least one alkyl ether citrate and, optionally, at least one alcohol ethoxylate.... | 01/15/2008 |
| 7311206 | Quaternary ammonium compounds for froth flotation of silicates from an iron ore The present invention relates to a froth flotation process in which silicates are separated from an iron ore in the presence of a collector containing a quaternary ammonium compound having the formula R1R1N+R3R4 | 12/25/2007 |
| 7288510 | Nitrogen-containing ortho ester-based surfactant, its preparation and use The present invention relates to a new tertiary or quaternary nitrogen-containing ortho ester-based surfactant, where the hydrophobic and hydrophilic parts am attached by separate ortho ester linkages. The ortho ester surfactants are stable in alkaline solutions, bu... | 10/30/2007 |
| 7288149 | Aqueous cement composition A fresh aqueous cement composition suitable for building purposes is described. It contains, besides a hydraulic cement, a methyl ethyl cellulose ether having a DS methyl of 0.4-2.2, a DS ethyl of 0.05-0.8 and a MS hydroxy-(C2-C3)-alkyl of 0-2.... | 10/30/2007 |
| 7227040 | Process for forming branched composition catalytically by carbon-hydrogen bond activation in a saturated moiety A branched composition can be formed by reacting a reagent containing a saturated hydrocarbon moiety in the presence of (a) a catalyst capable of activating a carbon-hydrogen bond therein and (b) a branching reagent having a moiety that binds to the carbon atom in t... | 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 |
| 7216709 | Hydraulic fracturing using non-ionic surfactant gelling agent The present invention generally relates to a method for treating a subterranean formation with an aqueous viscoelastic treating fluid that an aqueous base fluid and one or more non-ionic amido amine oxide surfactant gelling agents. The treatment method comprises inj... | 05/15/2007 |
| 7208448 | In an amine or nitrile embedded passivated hydrogenation catalyst The invention relates to a passivated hydrogenation catalyst that is embedded in a primary amine, a derivative thereof, and/or a nitrile, the process to make such catalysts, as well as the use of such catalysts in a hydrogenation process in which an amine or a deriv... | 04/24/2007 |
| 7183434 | Process for the continuous quaternization of tertiary amines with an alkyl halide The present invention relates to a continuous process for the quaternization of tertiary amines with an alkyl halide. The process is performed at a temperature between 50° C. and 140° C. by reacting a tertiary amine and an alkyl halide in a tubular reactor at a pr... | 02/27/2007 |
| 7160397 | Alkoxylate mixture and its use as a cleaning agent for hard surfaces The invention relates to an alkoxylate mixture having H formula (I) where PO is a propyleneoxy unit, EO is an ethyleneoxy unit, n has an average value in the range 1.6–3.3 per 2-ethylhexyl group and m has an average value in the range 3.0–5.5 per 2-ethyl-hexyl g... | 01/09/2007 |
| 7098353 | Metal ion exchanged solid materials as catalysts for the skeletal isomerization of fatty acids and alkyl esters thereof The present invention generally relates to a process for the skeletal isomerization of unsaturated linear fatty acids and/or alkyl esters thereof to their branched counterparts. Said skeletal isomerization process comprises contacting said unsaturated linear fatty a... | 08/29/2006 |
| 7060661 | Acid thickeners and uses thereof The present invention generally relates to aqueous, acidic compositions thickened with an amidoamine oxide gelling agent and/or viscoelastic surfactant of the general formula I: wherein R1 is a saturat... | 06/13/2006 |
| 7053247 | Process for the manufacture of diethylenetriamine and higher polyethylenepolyamines The invention relates to a process for the manufacture of diethylenetriamine and higher polyethylenepolyamines by a transamination of ethylenediamine. The transamination is performed at a temperature from 135° C. to 180° C. at a pressure from 5 Mpa to 40 Mpa in th... | 05/30/2006 |
| 7030060 | Rest-breaking composition and use thereof The invention relates to a composition useful for the breaking of rest in deciduous fruit species such as apple species and grape species comprising an organic nitrogen-containing compound having a molecular weight of 60 to 300 with the exception of urea and dinitro... | 04/18/2006 |
| 7002045 | Ortho ester-based surfactant, its preparation and use The present invention relates to a new ortho ester-based surfactant, where the hydrophobic and hydrophilic parts are connected by ortho ester linkages to the molecule. The ortho ester has the formula where R is hydrogen... | 02/21/2006 |
