Patent application number | Description | Published |
20100063316 | REACTIVE PHOSPHONATES - Novel reactive phosphonate compounds are disclosed corresponding to the structural formula set forth. The reactive moiety is preferably selected from the group of Cl, I, Br, HSO | 03-11-2010 |
20100145066 | PHOSPHONATE COMPOUNDS - Novel phosphonate compounds are disclosed embodying an aminophosphonate moiety and a selected reaction partner. These compounds offer beneficial alternatives, and additional possibilities, to extant phosphonates and are capable of delivering desirable benefits from an application standpoint and from a compatibility standpoint broadly. | 06-10-2010 |
20100174110 | PROCESS FOR THE MANUFACTURE OF ALKYLAMINO ALKYLENE PHOSPHONIC ACIDS - A process for the manufacture of alkylamino alkylene phosphonic acids is disclosed. In detail, a specific phosphonate is reacted with an agent selected to yield an alkylamino moiety substituted by a radical selected from OH, OR′, NH2, NHR′, N(R′) | 07-08-2010 |
20100186961 | ALPHA AMINO ACID PHOSPHONIC ACID COMPOUNDS, METHOD OF PREPARATION OF USE THEREOF - Novel aminoacid alkylphosphonic acid compounds are disclosed. These compounds can be used in multiple applications, in particular in a scale inhibitor functionality in aqueous systems, including in marine oil recovery. | 07-29-2010 |
20110085959 | METHOD FOR THE MANUFACTURE OF CONCENTRATED PHOSPHORUS ACID - A method for the manufacture of concentrated phosphorous acid starting from pure P | 04-14-2011 |
20110086791 | SURFACE TREATMENT COMPOSITION CONTAINING PHOSPHONIC ACID COMPOUNDS - Surface treatment compositions containing selected phosphonic acid compounds are disclosed. The compositions contain major levels of surface-active agents in combination with additive levels of the phosphonic acid compounds, and, in accordance with needs and objectives, conventional optional ingredients and additive agents. The inventive compositions can provide significant performance benefits, among others novel synergies and eminently desirable regulatory and environmental acceptability. | 04-14-2011 |
20110118502 | METHOD FOR THE MANUFACTURE OF AMINOALKYLENE PHOSPHONIC ACID - A method for the manufacture of amino alkylene phosphonic acids is disclosed. Pure P | 05-19-2011 |
20110124533 | METHOD OF SCALE INHIBITION - A method is disclosed to inhibit scale formation in aqueous systems whereby a threshold amount of a scale inhibiting agent, represented by an aminoacid alkylphosphonic acid, is added to the aqueous system. The aminoacid moiety can be represented by α-species or by species having, at least, two or more carbon atoms between the carboxylic moiety and the amine group. These aminoacid based inhibitors exhibit unusually superior performance and system acceptability compared to leading state-of-the-art inhibitors. | 05-26-2011 |
20110130312 | METHOD OF SECONDARY OIL RECOVERY - A method of secondary oil recovery is disclosed wherein from 0.1 to 100 000 ppm of a medium soluble aminoalkylene phosphonic acid amine salt are used wherein both the aminoalkylene phosphonic acid moiety and the amine moiety are selected from a specifically defined class of compounds. The substantially medium soluble aminoalkylene amine phosphonates exhibit a significantly improved compatibility with the recovery medium and thus can propagate fairly freely into the medium and consequently cover a largely extended rock surface before being subject to precipitation in the form of a medium insoluble scale inhibitor. The amine compound is represented by combinations of structurally different compounds. | 06-02-2011 |
20110133116 | METHOD OF WATER TREATMENT - A method for securing the use of an aqueous medium under any substantial exclusion of metal ion interference is disclosed. A phosphonic acid compound containing: a selected phosphonate moiety and a moiety selected from a limited number of species; or hydrocarbon chains containing aminoalkylene phosphonic acid substituents; or alkylamino alkylene phosphonic acids containing an active moiety embodying N, O, and S. The technology can, by way of illustration, be used in numerous applications including secondary oil recovery, scale inhibition, industrial water treatment, paper pulp bleaching, dispersant treatment, sequestering application, brightness reversion avoidance and paper pulp treatment. | 06-09-2011 |
20120190877 | METHOD FOR THE MANUFACTURE OF DIALKYLPHOSPHITES - A method for the manufacture of dialkyl phosphites is disclosed wherein a P—O component containing from 1 to 6 P—O—P bonds in the molecule is reacted with an alcohol and a carboxylic acid ester having from 1 to 6 carbon atoms in the alkyl group and from 5 to 20 carbon atoms in the esterifying alkyl group of the ester. The dialkyl phosphites are formed under simultaneous removal by distillation of the carboxylic acid formed. | 07-26-2012 |
20130264289 | METHOD OF SCALE INHIBITION - A method is disclosed to inhibit scale formation in aqueous systems whereby a threshold amount of a scale inhibiting agent, represented by an aminoacid alkylphosphonic acid, is added to the aqueous system. The aminoacid moiety can be represented by α-species or by species having, at least, two or more carbon atoms between the carboxylic moiety and the amine group. These aminoacid based inhibitors exhibit unusually superior performance and system acceptability compared to leading state-of-the-art inhibitors. | 10-10-2013 |
20140336408 | PROCESS FOR THE MANUFACTURE OF ALKYLAMINO ALKYLENE PHOSPHONIC ACIDS - A process for the manufacture of alkylamino alkylene phosphonic acids is disclosed. In detail, a specific phosphonate is reacted with an agent selected to yield an alkylamino moiety substituted by a radical selected from OH, OR', NH | 11-13-2014 |