Abstract: Compositions and methods are described for inhibiting corrosion of corrodible metals present in contact with water in cooling water and other water storage systems. The compositions include concentrated stannous salts and agents to solubilize such salts.

Abstract: A microcapsule comprising A) a core containing a hydrophobic liquid or wax, B) a polymeric shell comprising a) a polymer formed from a monomer mixture containing: i) 1 to 95% by weight of a hydrophobic mono functional ethylenically unsaturated monomer, ii) 5 to 99% by weight of a polyfunctional ethylenically unsaturated monomer, and iii) 0 to 60% by weight of other mono functional monomer, and b) a further hydrophobic polymer which is insoluble in the hydrophobic liquid or wax. The invention includes a process for the manufacture of particles and the use of particles in articles, such as fabrics, and coating compositions, especially for textiles.

Abstract: A furan polymer impregnated wood which comprises wood impregnated with a polymerizable furfuryl alcohol monomer mixture containing at least water and furfuryl alcohol, and an initiator selected from the group consisting of anhydrides, acids and combinations thereof is described. For longer storage life, the mixture contains a stabilizer selected from sodium carbonate, sodium bicarbonate, sodium citrate, phosphates and water-soluble lignin derivatives such as calcium and ammonium salts of lignosulfonic acids, and combinations thereof. A method for preparing a furan impregnated wood and uses thereof is also described.

Abstract: Hydrophilic-core microcapsules and methods of their formation are provided. A hydrophilic-core microcapsule may include a shell that encapsulates water with the core substance dissolved or dispersed therein. The hydrophilic-core microcapsules may be formed from an emulsion having hydrophilic-phase droplets dispersed in a hydrophobic phase, with shell-forming compound contained in the hydrophilic phase or the hydrophobic phase and the core substance contained in the hydrophilic phase. The shells of the microcapsules may be capable of being broken down in response to being contacted by an alkali, e.g., produced during corrosion, contacting the shell.

Abstract: A corrosion inhibitor composition comprising one or more organic solvents, one or more corrosion inhibitor intermediates and about 0.1 to about 20 weight percent of one or more iodide salts dissolved in said composition and methods of using the corrosion inhibitor composition in acid fracturing and matrix acid stimulation of subterranean formations.

Abstract: The present invention relates to new substance combinations as vapor phase corrosion inhibitors for protecting a broad range of customary utility metals, including iron, chromium, nickel, tin, zinc, aluminum, copper, magnesium and their alloys, against corrosion in humid climates. Said substance combinations comprise (1) at least one C6 to C10 aliphatic monocarboxylic acid, (2) at least one C6 to C10 aliphatic dicarboxylic acid, and (3) a primary aromatic amide. Preferably they further comprise (4) an aliphatic ester of hydroxybenzoic acid, in particular of 4-hydroxybenzoic acid, and/or (5) a bemzimidazole, in particular a benzimidazole substituted on the benzene ring.

Abstract: Coating compositions are disclosed that include corrosion resisting particles such that the coating composition can exhibit corrosion resistance properties. Also disclosed are substrates at least partially coated with a coating deposited from such a composition and multi-component composite coatings, wherein at least one coating later is deposited from such a coating composition. Methods and apparatus for making ultrafine solid particles are also disclosed.

Abstract: Coating compositions are disclosed that include corrosion resisting particles such that the coating composition can exhibit corrosion resistance properties. Also disclosed are substrates at least partially coated with a coating deposited from such a composition and multi-component composite coatings, wherein at least one coating later is deposited from such a coating composition. Methods and apparatus for making ultrafine solid particles are also disclosed.

Abstract: A coating composition is disclosed that includes a binder, a tri-valent chromium solid, and a stabilized oxidizing agent. The coating composition is used in a method to protect a surface of a metallic article, such as an aluminum article. The tri-valent chromium solid forms a soluble hexavalent chromium compound as a result of reaction with the oxidizing agent when activated in the presence of a corrosive environment. The released water soluble hexavalent chromium migrates to coating defects to protect the metallic article.

Abstract: Described herein are compositions for reducing or preventing the degradation of equipment and articles exposed to hydrogen sulfide present in high concentrations in subterranean environments (e.g., oil and gas wells). The compositions are composed of a thermoplastic resin, a thermosetting resin, or a combination thereof, and at least one compound that interacts with hydrogen sulfide from the subterranean environment. In certain aspects, the compositions are coated on the article of interest. In other aspects, the composition is used to manufacture the article and, thus, is integrated throughout the article.

Abstract: Methods and compositions are described for protecting a metal surface against corrosion. The method involves applying to the metal surface a coating formulation that comprises a radiation curable resin and a corrosion-responsive agent that is capable of releasing a corrosion-inhibiting ion in response to exposure to ionic species characteristic of those present on a metal surface undergoing oxidative corrosion; and exposing the coating formulation to radiation whereby the radiation curable resin forms a corrosion-resisting coating having a low spontaneous release rate of the corrosion-responsive agent into the environment.

Abstract: A sheathed posttensioning cable assembly including an elongated metallic cable and a coaxially disposed outer sheath, with the cable assembly including a polymeric resin fiber/filament impregnated with a migratory corrosion inhibitor being inserted within the sheath and extending along the length of the cable. The polymeric resin is preferably polypropylene, polyethylene, nylon, or polyethylene terephthalate, with the corrosion inhibitor comprising a 50:50 blend of sodium benzoate and alkali metal sebacate. The inhibitor preferably comprises between 5% and 10% by weight of the impregnated fiber/filament.

Abstract: A friction reducing, corrosion resistant and abrasion resistant coating composition having a first part with at least one alkoxy siloxane and preferably at least two alkoxy siloxanes, wherein the total amount of alkoxy siloxanes in the composition is greater than approximately 70 wt %, a hydrolysable catalyst, an adhesion promoter, and a flow/leveling agent, and a second part consisting of a friction reducing additive.

Abstract: There is disclosed a rust prevention and hydrophilization treatment method for a flux-brazed aluminum-made heat exchanger which comprises subjecting the same to a rust prevention treatment by the use of a zirconium base compound and/or a titanium base compound, and thereafter subjecting the same to a hydrophilization treatment by means of a hydrophilization treatment agent composition containing the under-mentioned components: (1) 40 to 90% by mass of polyvinyl alcohol having a degree of saponification of at least 90%; (2) 3 to 40% by mass of polyoxyalkylene-modified polyvinyl alcohol in which 0.01 to 20% of pendant groups are polyoxyalkylene ether groups; (3) 1 to 30% by mass of an inorganic cross-linking agent which reacts with hydroxyl groups of the polyvinyl alcohol and modified polyvinyl alcohol; and (4) 1 to 20% by mass of a guanidine compound and/or a salt thereof.

Abstract: The invention relates to a method for prevention of corrosion by naphthenic acids in a refinery comprising the use of a compound of the formula HS—B—COOR, where B is a saturated bivalent 1-18 C hydrocarbon and R is H, alkaline or alkaline earth metal, ammonium, straight or branched alkyl, cycloalkyl, aryl, alkylaryl or arylalkyl with 1-18 C atoms.

Abstract: The present invention relates to compositions including a mixture of hardness ions (e.g., magnesium and calcium ions) in an amount greater than the amount of threshold agent, which have a beneficial effect on etch or corrosion during cleaning. The present compositions can reduce corrosion or etch of glass and aluminum. The present invention also relates to methods employing these compositions.

Abstract: Methods and compositions are described for protecting a metal surface against corrosion. The method involves applying to the metal surface a coating formulation that comprises a radiation curable resin and a corrosion-responsive agent that is capable of releasing a corrosion-inhibiting ion in response to exposure to ionic species characteristic of those present on a metal surface undergoing oxidative corrosion; and exposing the coating formulation to radiation whereby the radiation curable resin forms a corrosion-resisting coating having a low spontaneous release rate of the corrosion-responsive agent into the environment.

Abstract: Corrosion induced by the presence of naphthenic acids in hydrocarbon fluids, particularly where such fluids are at elevated temperatures, may be inhibited or controlled through use of corrosion inhibiting compositions comprising a combination of a minor portion of a phosphorus-based constituent and a major portion of a sulfur-based constituent, nitrogen-based constituent, or combination thereof. In another embodiment the sulfur-based constituent and/or nitrogen-based constituent may be used without any phosphorus-based constituent. Where the compounds are appropriately selected, the compositions may inhibit corrosion to a degree comparable or nearly comparable to the inhibition provided by an equal amount of some conventional phosphorus-based compounds alone, but are significantly less likely to impair catalyst activity in downstream cracking and refinery operations.

Abstract: The present invention provides an effective method of inhibiting corrosion on metallic surfaces in contact with a fluid contained in an industrial system, which includes adding to such fluid an effective corrosion controlling amount of a phosphoglyceride compound, optionally with emulsified soybean oil.

Abstract: A protective coating composition comprising a silicate, such as an organosilicate, an organosilicate polymer and colloidal silica and an organic titanate, preferably a titanate chelate or a titanate ester in a suitable organic solvent. The composition is free from metal particles.

Abstract: 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.

Abstract: A colloidal solution and/or nanocomposite having enhanced energy transfer between thermal, electron, phonons, and photons energy states. The composition comprises a synergistic blend of electrides and alkalides within a medium that effectively alters the mean free path. The composition is optionally further enhanced through externally generated fields and made into energy conversion devices.

Abstract: 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 selected from the group consisting of silica, triazoles, and wetting agents.

Abstract: A composition and method for repairing metal reinforced concrete structures by applying a repair coating to surfaces of such damaged structures. The coating composition is a mortar/aggregate mixture blended with fiber reinforcements and containing a quantity of selected migratory corrosion inhibitors. These inhibitors are a mixture of sodium gluconate together with an auxiliary inhibitor consisting of sodium sebacate, potassium sebacate or ammonium benzoate. The fiber reinforcements consist of polypropylene or polyethylene, and are co-extruded with a quantity of the migratory corrosion inhibitors listed above.

Abstract: A rust prevention coating agent which can be used even in uses requiring high corrosion-resistant performance because of having corrosion resistance superior to a conventional surface treatment agent, and is excellent in the adhesion to a coating film, and a method of rust-proofing using the same are provided. The prevention coating agent comprises a fluorine and zirconium-containing compound and certain guanidine compounds and/or salts thereof.

Abstract: The present invention relates to formulations for corrosion-inhibiting, emulsifying, lubricating or as a surfactant in organic hydrocarbon and/or water based system containing an acyl amino acid derivative and a triazole derivative.

Abstract: 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 suitable liquid coolant in the cooling system, to lower the freezing point temperature of the coolant and inhibit corrosion of metallic components associated with the cooling system. The antifreeze composition is particularly well suited, although not exclusively, for use with hard water. The antifreeze composition includes an organic acid component comprising adipic acid and at least one of benzoic acid and one or more C9-C12 dicarboxylic acid—or salts of these acids. The antifreeze composition also includes other anti-corrosive additive, for example, molybdate, nitrite, nitrate silicate azoles and a variety of buffer agents.

Abstract: A chromium- and nitrogen-free brightening and passivating treatment for metal surfaces, particularly iron and steel, comprises: at least one acid; at least one substance containing a peroxy moiety; and at least one organic substance selected from the group consisting of; molecules that contain both at least one ether moiety and at least one hydroxyl moiety; molecules that contain at least two ether moieties; and molecules that contain in each molecule both at least one ether moiety and one nitrogen atom that is covalently bonded to at least three carbon atoms. Preferably part of the acid contains phosphorus, which has been found to act synergistically with the organic substance to stabilize peroxy compounds against decomposition, particularly in the presence of metal ions.

Abstract: It is an object of the present invention to provide a rust prevention coating agent which can be used even in uses requiring high corrosion-resistant performance because of having corrosion resistance superior to a conventional surface treatment agent, and is excellent in the adhesion to a coating film, and a method of rust-proofing using the same.

Abstract: This invention provides a series of novel acrylated, substituted imidazoline corrosion inhibitors of the formula: 1

Abstract: Compositions and methods are disclosed for preventing the oxidative corrosion of metal surfaces by exposing a metal surface to an anti-corrosion agent characterized as a lower alkyl carboxylic acid or salts and/or other derivatives that conserve or embody the lower alkyl carboxylic acid moiety present in their molecular structures as an active anti-corrosion agent. The anti-corrosion agent may be used in combination with a material capable of forming a moisture retentive barrier over the metal surface. The compositions and methods of the invention provide a practical, non-toxic way of ensuring anti-corrosion protection for metals, or devices containing exposed metals, stored or operated in water or in the presence of water vapor.

Abstract: The present invention provides a non-chromium metal surface treating agent which has excellent adhesion with a coating and corrosion resistance, and also has excellent workability and stability. A metal surface treating agent comprising a water-soluble zirconium compound, a water-soluble or water-dispersant acrylic resin and a water-soluble or water-dispersant thermosetting crosslinking agent, wherein said water-soluble zirconium compound has a zirconium content of 500 to 15000 ppm on a mass basis, said acrylic resin has an acid value of solid matter of 150 to 740 mgKOH/g, a hydroxyl value of solid matter of 24 to 240 mgKOH/g, and a solid matter content of 500 to 30000 ppm on a mass basis, and said thermosetting crosslinking agent has a solid matter content of 125 to 7500 ppm on a mass basis.

Abstract: Method and formulation for providing multiple sources of migratory corrosion inhibitors to metallic reinforcements embedded in concrete through addition of the inhibitors to the concrete mix. First and second sources of inhibitors are provided with the first source consisting of a powdered corrosion inhibitor consisting of sodium sebacate, potassium sebacate, dicyclohexylammonium nitrite, sodium nitrite, zinc gluconate, sodium gluconate, and calcium nitrite. The second source consists of an in-situ coextruded blend of a migratory corrosion inhibitor in a resin matrix, the second source consisting of a coextruded blend which includes an alkali metal salt of a dibasic acid containing from 8 to 12 carbon atoms together with migratory corrosion inhibitors consisting of alkali metal gluconates, zinc gluconate, and cyclohexylammonium benzoate, with the alkali metal in the inhibitors being sodium, potassium, or calcium.

Abstract: In general, this invention relates to supplemental coolant additive for use in cooling systems, for example, in diesel engine cooling systems. The supplemental coolant additive includes a C4-C6 dicarboxylic acid, preferably adipic acid, and optionally a C9-C12 aliphatic dicarboxylic acid an aromatic monocarboxylic acid, an aromatic dicarboxylic acid and salts of these acids. The supplemental coolant additive also can include a variety of other additives including molybdate salts, nitrate salts, nitrite salts, silicate salts and buffering agents. The supplemental coolant additive is preferably provided as a solid additive or a liquid concentrate. The supplemental coolant additive is preferably added to the liquid coolant over time to provide increased coolant life. Further the supplemental coolant additive provides enhanced anti-corrosion protection in cooling systems that include hard water.

Abstract: This invention relates to a corrosion inhibiting composition for use in commercial, institutional, and industrial water systems. The compositions comprise a mixture of (1) a fatty acid ester, and (2) a polyethylene glycol ester. These compositions are useful in inhibiting the corrosion of metals such as steel, copper, and brass, which are exposed to water.

Abstract: Corrosion protection of magnesium and aluminum alloys in engine coolants and heat-exchange fluids is achieved by the use of a select group of aliphatic and aromatic carboxylate acids or the alkaline metal, ammonium or amine salts thereof in combination with a fluoride and/or a fluorocarboxylic acid or salt thereof. These compositions have been found to significantly improve the high temperature magnesium corrosion protection properties of coolants, and are of use in automobile engine coolant systems.

Abstract: Microbiological control is achieved by continuously and inexpensively dosing water in contact with biofilm, or that comes into contact with biofilm, using a highly effective biocide that provides very effective microbiocidal control of planktonic microorganisms and of biofilm species, even where the biofilm infestations have been in existence for long periods of time and thus have encased themselves in a substantial quantity of slimy defensive polysaccharide layers or films. In addition, the biocide used makes possible significant reduction in copper and/or iron surfaces in contact with the water as compared to N,N′-bromochloro-5,5-dimethyl hydantoin. Still other advantages are made possible by the described technology.

Abstract: The disclosure relates to temporary corrosion resistant coatings and films upon metal substrates, e.g., metal tools and dies. The temporary coatings and films will not adversely chemically alter the surface of the underlying substrate. The coatings/films comprise a mixture of at least one of an acrylic, water, an oil, silica, at least one silicate, surfactants and optionally one or more buffering materials and waxes.

Abstract: This invention relates to a corrosion inhibiting composition for use in commercial, institutional, and industrial water systems. The compositions comprise a mixture of (1) a fatty acid ester, and (2) a polyalkylene glycol, preferably polyethylene glycol. These compositions are useful in inhibiting the corrosion of metals such as steel, copper, and brass, which are exposed to water.

Abstract: The present invention provides a corrosion inhibitor composition for magnesium or magnesium alloys which contains as an effective component, at least one compound selected from among aromatic carboxylic acids and salts thereof as an effective component. Further, the present invention provides a surface treating agent for magnesium and/or magnesium alloy components which contains a phosphate, at least one compound selected from among aromatic carboxylic acids and salts thereof, and further, as required, at least one compound selected from among pyrazole compounds and triazole compounds,and surface-treating method using the surface treating agent.

Abstract: 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 resins together with selected corrosion inhibitor formulations are extruded for use in injection molding operations Molded articles are prepared from the high temperature engineering plastic resins and a solid phase corrosion inhibitor blended in situ, and wherein the resin consists essentially of nylon, polycarbonates, and polyethylene terephthalate, and wherein the corrosion inhibitor contains a blend of corrosion inhibitors such as cyclohexylammonium benzoate, sodium nitrite, benzotriazole, and sodium sebacate.

Abstract: 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 runways.

Abstract: The reaction of propargyl alcohol and iodine gives 2,3di-iodo-2-propen-1-ol, and it has been discovered that this compound is effective as an intermediate in a corrosion inhibitor for metals in acid media, particularly halogen acids. The compound provides iodine to the media in a stable form that does not appear to degrade over time.

Abstract: 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 runways.

Abstract: An acidic, water-thinnable composition is described. The composition may be used both as a primer and paint. The composition creates a coating, which is capable of simultaneously acting as a bonding, inhibiting and protecting layer.

Abstract: 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 inhibition comparable to tolyltriazole in the absence of halogen, copper corrosion rates of less than about 2.5 mills per year in aqueous systems where halogen is present; and do not exhibit a detrimental effect on halogen demand in an aqueous system being treated.

Abstract: 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 corrosion inhibitors.

Abstract: There is provided an anticorrosive composition for a memory unit bearing so as to control outgas generation which would cause magnetic head crushing or memory error. The anticorrosive composition for a memory unit bearing contains a carbonic ester represented by the following formula: wherein R and R′ are branched alkyl groups of 13 to 15 carbon atoms and may either be the same or different.

Abstract: A method of preventing corrosion in pipelines comprising draining pipeline of all residual compounds, blowing through with nitrogen and rinsing with a corrosion inhibiting rinsing agent.

Abstract: An anti-corrosive coating composition suitable for providing corrosion protection for a sheet metal substrate includes from 20 to 97 wt. % of a filler dispersed in a polymeric base or matrix material. The filler includes at least one filler material having a hollow cellular structure, of which the hollow cells are loaded with organic and/or inorganic inhibitors and/or antioxidants. The hollow cellular structure material may be diatomaceous earth, zeolite, or carbon. The inhibitors and/or antioxidants may be selected from carbonic acids, amines, ketones, aldehydes, heterocyclic compounds, phosphates, benzoates, silicates, vanadates, tungstates, zirconates, borates, molybdates, benzaldehyde, vitamin C, vitamin E, or the like. A long term durable corrosion protection is achieved because the inhibitors and/or antioxidants are released from the hollow cells of the filler material in a dosed time-release manner over the operating lifetime of the anti-corrosive coating.