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| Number | Title | Issue Date |
| 8153028 | Anticorrosion additives for manufacturing processes, a process for preparation thereof and use thereof The present invention relates to novel anticorrosion additives for manufacturing processes, comprising at least one triazole and the reaction product of at least one alkylene glycol and at least one carboxylic anhydride, to a process for preparation thereof and to t... | 04/10/2012 |
| 7662312 | Pigment grade corrosion inhibitor host-guest compositions and procedure A pigment grade corrosion inhibitor and a method of applying the inhibitor is disclosed. The inhibitor is comprised of a host species comprised of an inorganic compound having a layered structure and a guest species comprised an anionic species of a weak acid. The h... | 02/16/2010 |
| 7407623 | Steam condensate corrosion inhibitor compositions and methods Lecithin and 2-bromo-2-nitropropane-1,3 diol (BNPD) are used to inhibit corrosion in boiler steam condensate systems. Aqueous steam condensate corrosion inhibiting compositions of these components are also disclosed. BNPD is also used as a preservative in lecithin c... | 08/05/2008 |
| 7402263 | Tungstate based corrosion inhibitors A trace amount of a tungstate is disclosed for inhibiting corrosion by nitrogen fertilizer solution, in particular, an ammonium nitrate fertilizer solution, (UAN) in contact with ferrous metal storage tanks, piping, and equipment surfaces. Tungstate added with a dis... | 07/22/2008 |
| 7393395 | Surface-treating agent for metal The present invention provides a surface-treating agent which improves heat resistance, adhesiveness to resin and solder wettability. The surface-treating agent for metal contains a tetrazole derivative represented by the following formula and/or a salt thereof,... | 07/01/2008 |
| 7297191 | Biodegradable corrosion inhibitor composition A corrosion inhibitor composition includes between about 95 and about 99 percent by weight ammonium benzoate, and between 1 and about 5 percent by weight of silica. The composition may be water soluble for use in solution-based applications. ... | 11/20/2007 |
| 7216710 | Thiol/aldehyde corrosion inhibitors Methods of inhibiting corrosion comprising providing a corrosive environment; adding a corrosion inhibitor comprising a reaction product of a thiol compound and an aldehyde compound. Methods of acidizing a near well bore region of a subterranean formation comprising... | 05/15/2007 |
| 7204937 | Metal oxides dispersant composition This invention relates to metal oxides dispersant compositions comprising (a) certain a metal oxides dispersant, and (b) an oxime. The invention also relates to a process for dispersing metal oxides in an aqueous system that involves adding the dispersant compositio... | 04/17/2007 |
| 7186354 | Anticorrosive treating concentrate According to the present invention, there is provided an anticorrosive treating concentrate usable for an exposed surface of a metal (e.g. copper or a copper alloy), containing an anticorrosive agent and a precipitation inhibitor and having a pH of 4 to 12 when used... | 03/06/2007 |
| 7141102 | Antifreeze solution and rust inhibitor added thereto An object of the present invention is to provide an antifreeze solution which is used by adding it to a heating medium of a heat exchanger or a radiator coolant for an internal combustion car engine, which can be used to prevent the icing of road surfaces, which is ... | 11/28/2006 |
| 7125483 | Corrosion control in olefin production plants A method for reducing acid corrosion and products of acid corrosion in a thermal cracking plant, the acid corrosion products being compounds of iron, chromium, nickel, lead, cadmium, manganese, mercury, magnesium, calcium, sodium, copper, zinc, lead, molybdenum, and... | 10/24/2006 |
| 7118615 | Biodegradable corrosion inhibitor composition A corrosion inhibitor composition includes between about 90 and about 99 percent by weight ammonium benzoate, and one or more additive components in an amount of between 1 and about 10 percent by weight of the composition. The one or more additive components are sel... | 10/10/2006 |
| 7081143 | Alkoxylated triazine emulsion compositions for fuel cell reformer start-up The present invention relates to emulsion compositions for starting a reformer of a fuel cell system. In particular, the invention includes emulsion compositions comprising hydrocarbon fuel, water and alkoxylated triazine surfactants for starting a reformer of a fue... | 07/25/2006 |
| 7057050 | Imidazoline corrosion inhibitors This invention provides a series of novel acrylated, substituted imidazoline corrosion inhibitors of the formula: wherein R1 is an alkyl radical having from 2 to 8 carbon atoms; R2 is a radical de... | 06/06/2006 |
| 7008561 | Ether carboxylic acids based on alkoxylated mercaptobenzothiazoles and use of the same as corrosion inhibitors The present invention relates to compounds of formula (1) and the salts thereof which correspond to formula (2). In the formulae, A is C2- to C4-alkylene, x is a number from 1 to 100, y is a number... | 03/07/2006 |
| 6953534 | Engine antifreeze composition In general this invention relates to an antifreeze composition that can be used in the cooling systems of internal combustion engines, for example, in heavy-duty diesel engines, light duty trucks and cars. The antifreeze composition can be added to water or other su... | 10/11/2005 |
| 6939483 | Brine fluids with improved corrosion properties It has been discovered that ammonia and amines are useful to increase the pH and corrosion resistance of high density brines, such as zinc bromide brines, without significantly reducing their densities. The ammonia or amine additive is preferably incorporated by con... | 09/06/2005 |
| 6916766 | Circulating oil compositions A combination of an ashless dispersant comprising the reaction product of a succinic anhydride and a polyamine and an ashless rust inhibitor comprising a mixture of a succinic anhydride and a oxime substituted aromatic compound in a lubricant base stock along with a... | 07/12/2005 |
| 6881279 | High performance non-chrome pretreatment for can-end stock aluminum A chemically and thermally stable chromate free aqueous liquid treatment for metals, especially aluminum, that imparts corrosion resistance as good as that from conventional chromate containing treatments, contains water and a fluoroacid selected from the group cons... | 04/19/2005 |
| 6770222 | Polymerization-inhibiting composition, polymerization inhibitor and method for inhibiting polymerization The invention relates to a polymerization inhibitor comprising at least one compound (a) selected from the group consisting of a compound having an NO radical in its molecule and a precursor compound capable of forming an NO radical, and a phosphorus-containing comp... | 08/03/2004 |
| 6599445 | Corrosion inhibitor compositions including quaternized compounds having a substituted diethylamino moiety The present invention relates to a process for making and a method for using a corrosion inhibitor composition to reduce the corrosion rate of a metal by a fluid containing a corrosion agent. The corrosion inhibitor composition comprises at least a quater... | 07/29/2003 |
| 6593278 | Method for inhibiting corrosion using certain phosphorus and sulfur-free compounds The present invention relates to a method for inhibiting corrosion of corrosion-prone metal surfaces by organic acid-containing petroleum streams by providing an effective corrosion-inhibiting amount of certain sulfur and phosphorus-free aromatic compound... | 07/15/2003 |
| 6592781 | Thiazolidines and use thereof for corrosion inhibition A novel composition of thiazolidines of the following formula and a method to prepare the same are disclosed. The method involves reacting a dihydrothiazole with a mixture comprising formic acid and an aldehyde. These new thiazolidines are useful as corro... | 07/15/2003 |
| 6585933 | Method and composition for inhibiting corrosion in aqueous systems A method and composition for controlling corrosion of metals, particularly ferrous-based metals in contact with aqueous systems is disclosed, which includes treating industrial waters with a combination of a tetrazolium salt of the general formula: #... | 07/01/2003 |
| 6562149 | Solution and process to pretreat copper surfaces The invention concerns processes and solutions for the preliminary treatment of copper surfaces which are subsequently to be firmly bonded to organic substrates. The solution is used, in particular, for firmly bonding laminated multilayered printed circui... | 05/13/2003 |
| 6555600 | Corrosion inhibiting thermoplastic alloys Corrosion inhibiting thermoplastic alloys and methods of preparing same for use in fabricating molded articles with long-term corrosion protection. Masterbatches of nylon, polycarbonate, and polyethylene terephthalate high temperature engineering plastic ... | 04/29/2003 |
| 6540934 | Corrosion inhibited runway deicing fluid The present provides novel deicing and anti-icing compositions which are especially adapted for and are highly useful as deicing and anti-corrosion products, especially on many surfaces which require protection against icing and corrosion, such as airport... | 04/01/2003 |
| 6533962 | Anticorrosive plastic packaging materials The anticorrosive plastic packaging materials for protecting iron, aluminum and alloys of these metals against corrosion comprise synergistic mixture of contact-vapour phase corrosion inhibitors containing salt or salts selected from the salts of ammonium... | 03/18/2003 |
| 6524376 | Anticorrosive agent An anticorrosive agent containing, as essential components, (a) urea or a urea derivative and (b) a hydroxy aromatic compound.... | 02/25/2003 |
| 6521028 | Low hazard corrosion inhibitors and cleaning solutions using quaternary ammonium salts The present invention is directed to methods for preparing quaternary ammonium salts, particularly pyridinium and quinolinium salts. By preparing these salts in a solvent selected from the group consisting of propylene glycols, propylene glycol ethers and... | 02/18/2003 |
| 6517617 | Method and apparatus to clean and apply foamed corrosion inhibitor to ferrous surfaces The present invention relates to the application of a coating to a pipeline, FPS (Fire Protection System) or to pipe stock from which a pipeline is fabricated. A composition which when applied to the inside surface of the pipe prevents either chemical cor... | 02/11/2003 |
| 6518374 | Method of immediately terminating free-radical polymerisation processes Free radical polymerizations immediately terminated by a process comprising the addition of an inhibitor solution which contains phenothiazine and at least 50% (w/w) N-alkylpyrrolidone to a system undergoing free radical polymerization, wherein the inhibi... | 02/11/2003 |
| 6488868 | Corrosion inhibitor compositions including quaternized compounds having a substituted diethylamino moiety The present invention relates to a process for making and a method for using a corrosion inhibitor composition to reduce the corrosion rate of a metal by a fluid containing a corrosion agent. The corrosion inhibitor composition comprises at least a quater... | 12/03/2002 |
| 6488749 | Rust preventive An object of the present invention is to provide an aquarous rust inhibitor having low toxicity and excellent rust resistance, which contains saturated fatty acid, saturated dicarboxylic acid and salt thereof, derivatives of ethylenediamine tetraacetic ac... | 12/03/2002 |
| 6475431 | Corrosion inhibitors with low environmental toxicity A low toxic, biodegradable, water soluble and dispersant series of corrosion inhibitors are described. The method of inhibiting corrosion in aqueous medium by incorporating the inhibitor in PPM is provided. The corrosion inhibitor compromises an acrylic a... | 11/05/2002 |
| 6464763 | Water soluble composition as metal surface coating in the form of dry films proof to atmospheric corrosion A composition for use in forming a dry film coating on metal surfaces to at least temporarily protect the surfaces from oxidation comprises at least 20% by weight of a combination of at least one saturated linear carboxylic monoacid with at least one unsa... | 10/15/2002 |
| 6464899 | Putty composition containing a vapor phase corrosion inhibitor Compositions and methods for inhibiting corrosion of metallic surfaces are disclosed. The corrosion-inhibiting compositions are cost efficient, easy to use and can be conveniently removed or replaced. The corrosion-inhibiting compositions include a putty-... | 10/15/2002 |
| 6464901 | Halogen resistant copper corrosion inhibitors Non-halogen substituted, nitrogen containing, aromatic compounds are disclosed which are effective copper corrosion inhibitors in aqueous systems being treated with a halogen biocide. The materials of the present invention exhibit copper corrosion inhibit... | 10/15/2002 |
| 6458320 | Galvanized metal corrosion inhibitor This invention relates to a galvanized metal, typically steel, corrosion inhibitor concentrate comprising (a) an amine salt of a fatty acid or an amine salt of a derivative of a fatty acid, (b) preferably a salt of a non polymeric aromatic acid, and (c) p... | 10/01/2002 |
| 6432355 | Corrosion inhibition during transport of water and a hydrocarbon through a pipeline Described herein is a process of corrosion inhibition of a steel pipeline during transport of water and gas, or water and an oil, or mixtures thereof, therethrough, including introducing a copolymer of vinyl caprolactam and vinylpyridine into said pipelin... | 08/13/2002 |
