Abstract: Elimination and/or mitigation of fouling in a vapor transport systems, such as vent lines and scrubber feed lines may be accomplished using an antifouling additive. The method for employing the antifouling additive includes introducing into the vapor transport system an additive including a polar solvent and corrosion inhibitor wherein: the vapor transport system is substantially water free; the vapor transport system is used to transport acidic materials; the additive is a liquid at vapor transport system operating conditions; and the additive is stable at the vapor transport system operating conditions.

Abstract: The invention relates to a low temperature-curable coating composition comprising a film-forming resin, a curing agent for the film-forming resin, and a lithium salt.

Abstract: The disclosed invention relates to corrosion resistant additive composition comprising an aniline oligomer and a catalyst. The invention also relates to a coating composition comprising the foregoing corrosion resistant additive composition and a resin that is reactive with the aniline oligomer, the catalyst being present at an effective concentration to effect room temperature cure of the coating composition.

Abstract: The present invention provides a polymer composition including a first base polymer (A) containing at least a thermoplastic polymer, a second base polymer (B) containing at least a thermoplastic polymer and not having compatibility with the first base polymer (A), and an additive (C) containing at least a substance not having compatibility with any of the first base polymer (A) and the second base polymer (B), the additive (C) being in the form of liquid or slurry at the lower of a pyrolysis temperature of the first base polymer (A) and a pyrolysis temperature of the second base polymer (B). (A), (B) and (C) are phase-separated from each other, and interfaces each located between two of phases of (A), (B) and (C) contacting each other form three-dimensional continuous parallel interfaces.

Abstract: Corrosion inhibitor compositions and methods of use are disclosed. Corrosion inhibitors are selected from polyacrylate and calcium corrosion inhibitors, zinc and calcium corrosion inhibitors and/or sugar acids and calcium corrosion inhibitors combined with hypochlorite sources provide use solutions for effective corrosion inhibition for metal surfaces.

Abstract: Corrosion inhibitor compositions and methods of use are disclosed. Zinc and calcium corrosion inhibitors combined with hypochlorite sources provide use solutions for effective corrosion inhibition for metal surfaces.

Abstract: Elimination and/or mitigation of fouling in a vapor transport systems, such as vent lines and scrubber feed lines may be accomplished using an antifouling additive. The method for employing the antifouling additive includes introducing into the vapor transport system an additive including a polar solvent and corrosion inhibitor wherein: the vapor transport system is substantially water free; the vapor transport system is used to transport acidic materials; the additive is a liquid at vapor transport system operating conditions; and the additive is stable at the vapor transport system operating conditions.

Abstract: The invention relates to the use of salts of compound of the formula (1) and amines of the formula (2), where R1 means C8- to C30-Alkyl or C8- to C30-Alkenyl, R2 means hydrogen or a group of the formula -(A-O)x—H, R3, R4 mean hydrogen, C1- to C4-Alkyl or a group of the formula -(A-O)x—H, A means C2- to C4-Alkylene, and x means a number from 1 to 10, as water-soluble or water-dispersible corrosion inhibitors.

Abstract: Corrosion inhibitor compositions and methods of use are disclosed. Sugar acids and calcium corrosion inhibitors combined with hypochlorite sources provide use solutions for effective corrosion inhibition for metal surfaces.

Abstract: Compositions which inhibit corrosion and alter the physical properties of concrete (admixtures) are prepared from salt mixtures of hydroxycarboxylic acids, carboxylic acids, and nitric acid. The salt mixtures are prepared by neutralizing acid product mixtures from the oxidation of polyols using nitric acid and oxygen as the oxidizing agents. Nitric acid is removed from the hydroxycarboxylic acids by evaporation and diffusion dialysis.

Abstract: A rust preventive oil composition includes at least one base oil selected from the group consisting of mineral oils and synthetic oils, having a 5%-distillation temperature of not less than 140° C. and not more than 250° C., a 95%-distillation temperature of 250° C. or less, a difference between the 5%-distillation temperature and the 95%-distillation temperature of 90° C. or less, an aromatic content of 5% by volume or less, a naphthene content of not less than 30% by volume and not more than 95% by volume, a density at 15° C. of 0.75 g/cm3 or more, and a kinematic viscosity at 40° C. of not less than 0.3 mm2/s and not more than 5.0 mm2/s; at least one base oil selected from the group consisting of mineral oils and synthetic oils; and a rust-preventing additive.

Abstract: A fire-retardant composition comprising an ammonium polyphosphate, a suspending agent and an effective amount of a corrosion inhibiting agent. When in solution the corrosion inhibiting agent includes at least one ion selected from the group of ions consisting of aluminum ions, ferric ions, calcium ions and magnesium ions. Said ions complex an effective amount of fluoride ions present in the fire-retardant composition to reduce the corrosiveness of the fire-retardant composition.

Abstract: This invention relates to novel corrosion inhibitors which are capable of sequestering metal ions such as calcium and magnesium and are derived in part from renewable carbohydrate feedstocks. The corrosion inhibitors are mixtures containing one or more hydroxycarboxylic acid salts and one or more suitable oxoacid anion salts.

Abstract: Corrosion inhibitor compositions and methods of use are disclosed. Sugar acids and calcium corrosion inhibitors combined with hypochlorite sources provide use solutions for effective corrosion inhibition for metal surfaces.

Abstract: Corrosion inhibitor compositions and methods of use are disclosed. Zinc and calcium corrosion inhibitors combined with hypochlorite sources provide use solutions for effective corrosion inhibition for metal surfaces.

Abstract: The invention relates to a low temperature-curable coating composition comprising a film-forming resin, a curing agent for the film-forming resin, and a lithium salt.

Abstract: One or more methods for inhibiting corrosion in an aqueous medium that contain a composition with a specified generic formula are disclosed. The aqueous medium can be contained in an oil or gas pipeline or refinery.

Abstract: Corrosion inhibitor compositions and methods of use are disclosed. Polyacrylate and calcium corrosion inhibitors combined with hypochlorite sources provide use solutions for effective corrosion inhibition for metal surfaces.

Abstract: One or more methods for inhibiting corrosion in a fluid that contain a composition with a specified generic formula are disclosed. The fluid can be contained in an oil or gas pipeline or refinery.

Abstract: A method of inhibiting corrosion in a fluid is disclosed. The method comprises: adding to the fluid an effective corrosion inhibiting amount of a synergist, a synergist when H2S is present in the fluid, or no synergist when H2S is present in the fluid, and a composition comprising specified following formula and optionally salts thereof.

Abstract: Improved desulfurization compositions are provided for removing substantial fractions of sulfur, sulfur complexes, and sulfur compounds from liquid hydrocarbons such as crude oil and fuels. The preferred compositions comprise respective quantities of an alkylphenol ethoxylate, an amine, and an alkali metal nitrite. The compositions may be contacted with liquid hydrocarbons to achieve high levels of desulfurization.

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: “Disclosed is a feed water composition for boilers whose main ingredient is a purified ethylene glycol aqueous solution that is a mixture of purified ethylene glycol and pure water in a weight ratio of 70-90 : 10-30 wt %. The feed water composition comprises 92.1 to 98.8 wt % of the purified ethylene glycol aqueous solution, 0.1 to 2.0 wt % of sodium benrzoate, 0.1 to 1.5 wt % of tolyltriazole, 0.1 to 0.7 wt % of triethanol amine, 0.5 to 1.5 wt % of sodium nitrate, 0.3 to 1.2 wt % of sodium molybdate, and 0.1 to 1.0 wt % of potassium hydroxide.

Abstract: An effective corrosion inhibiting polymer composition including an interceptor for an acid gas combined with known VCI ingredients produces a more effective VCI than the prior art composition. The composition in macrogranular form may be held in a receptacle which is sealed in a container in which ferrous articles are protected. When the composition, greatly diluted is injection- or blow-molded or extruded as film which contains more than 100 ppm of a 2,4-6-tri-substituted phenol and uniformly dispersed small amounts of solid micron-sized particles of interceptor, an alkali metal nitrite and a solid adjuvant to aid in dispersing the solid particles, the film is transparent and has a smooth surface.

Abstract: An effective tarnish inhibiting (“TI”) polymer composition including a scavenger for hydrogen sulfide optionally in the presence of an acid gas such as sulfur dioxide, provides excellent protection against tarnishing of the lustrous surfaces of a silver object. When the composition is thermoformed into a box-like container or extruded as film which contains uniformly dispersed solid micron-sized particles of the scavenger chosen from zinc oxide and a silicate of an alkali metal in an amount no greater than 5% by weight of the polymer, it is transparent so that the condition of the stored silver may be assessed. A solid inert adjuvant may be added. All solid particles in the material have a primary particle size smaller than 53 ?m which makes it possible to obtain the uniform dispersion. A silver object may be wrapped in the film, or stored in a sealed box so that the solid particles in the polymer are not coated on the surfaces of the silver object.

Abstract: This invention is a method for forming a chemical conversion coating on ferrous metal substrates, the chemical solutions used in the coating and the articles coated thereby. By modifying and combining the features of two existing, but heretofore unrelated, coating technologies, a hybrid conversion coating is formed. Specifically, a molecular iron/oxygen-enriched intermediate coating, such as a dicarboxylate or phosphate, is applied to a ferrous substrate by a first oxidation. The intermediate coating pre-conditions the substrate to form a surface rich in molecular iron and oxygen in a form easily accessible for further reaction. This oxidation procedure is followed by a coloring procedure using a heated (about 120-220 F) oxidizing solution containing alkali metal hydroxide, alkali metal nitrate, alkali metal nitrite or mixtures thereof, which reacts with the iron and oxygen enriched intermediate coating to form magnetite (Fe3O4).

Abstract: This invention includes improvements to a method for forming a chemical conversion coating on ferrous metal substrates, to the chemical solutions used in the coating and to the articles coated thereby. A first oxidation applies a molecular iron/oxygen-enriched intermediate coating, such as a dicarboxylate or phosphate, to a ferrous substrate. A coloring procedure (a second oxidation) follows the first oxidation procedure, using a heated oxidizing solution that reacts with the iron and oxygen enriched intermediate coating to form magnetite (Fe3O4). The result is the formation of a brown or black finish. An appropriate rust preventive topcoat may seal the substrate. The finish affords protection, a degree of lubricity to aid assembly, break-in of sliding surfaces, provides anti-galling protection and an adherent base for paint finishes.

Abstract: These and other objects of the present invention are achieved by an anti-corrosive additive composition comprised of an alkali based salt of dioic acid and a defoaming agent selected from the group consisting of polyether modified polysilicones and tri-alkane/alkene phosphates and mixtures thereof.

Abstract: There is described a dialkali based salt solution of dioic acid as an anti-corrosive additive alone or in admixture in an effective amount with another composition such as concrete.

Abstract: The present invention relates to water treatment chemical formulations, and more particularly to chemical formulations used to treat water containing halogens as a sanitizing agent. The water treatment chemical formulations contain cyanuric acid and an alkali metal molybdate or silicate as an anticorrosion agent.

Abstract: The invention concerns the use of a composition or premix based on volatile corrosion inhibitors comprising, in order to limit to a maximum the release and/or degradation of the volatile corrosion inhibitors when the composition or premix is being formed, either an efficient amount of a structuring agent consisting of at least one solid or pasty substance whereof the melting point ranges from 40 to 110° C. preferably from 50 to 90° C., or a liquid substance capable of forming, mixed with a mineral filler, a solid or pasty combination. The invention also concerns a composition based on volatile corrosion inhibitors comprising a composition based on volatile corrosion inhibitors comprising an efficient amount which contains an efficient amount of a solid structuring agent. The invention further concerns polymer based articles having as constituent said composition or premix; said article are useful for protecting metal parts against corrosion.

Abstract: A coolant in a state of solution in which a water-soluble substance is dissolved is further included a sodium nitrite as additive by an amount of not less than 0.345 weight % for preventing crevice corrosion from causing particularly to a machining device such as machining center.

Abstract: Substance combinations which contain (1) an inorganic salt of nitrous acid, (2) a water-insoluble polysubstituted phenol, (3) an aliphatic ester of a dihydroxybenzoic acid, and (4) a tocopherol plus optionally (5) a suitable water vapor-volatile bicyclic terpene or an aliphatically substituted naphthalene which promotes sublimation of the components present in the respective substance combination, especially in air at a relatively high atmospheric humidity, and the use of such substance combinations as vapor phase corrosion inhibitors in packaging or in storage in closed spaces for protection of the conventional metals for use such as iron, chromium, nickel, tin, zinc, aluminum, copper and their alloys against atmospheric corrosion are described.

Abstract: The corrosion of metals in contact with aqueous alkanolamine solutions in acid gas removal units is inhibited by adding to the alkanolamine solution a corrosion inhibiting amount of a polythiaether compound.

Abstract: Sulfated dicarboxylic acids, amine salts thereof, or inorganic salts thereof may be used in various applications, including use as corrosion-inhibiting additives (e.g., in oil-field drilling applications and in metalworking applications), as emulsifiers (e.g., in metalworking applications), and as lubricity-enhancing additives (e.g., in metalworking applications).

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: An aqueous solution that will prevent rust, corrosion and scale on metal surfaces that includes potassium sorbate at percentages above 0.3%. This aqueous solution is effective at pH 4.5. However, its optimum effectiveness as a rust preventive is at pH 6.0 and above. The solution can be produced in a concentrated form and then diluted with tap or deionized water. The potassium sorbate solution has reduced conductivity and reduced oxygen content, both relative to tap water. This is believed to be the technical basis for its ability to prevent rust. Furthermore, the combination of lower conductivity and reduced oxygen content renders the potassium sorbate solution less viable for microbiological growth which prevents the solution from becoming rancid when it is used in re-circulating water systems. This also permits the use of toxic biocides to be eliminated in re-circulatory water systems, which are often used to reduce and control microbiological growth.

Abstract: A system is disclosed for inhibiting the corrosion of ferrous and other metals by passivating the metals. The system includes novel buffered compositions which may be applied to metal products, and novel combinations thereof with metals, for preventing or retarding corrosion, as well as methods for applying the buffered compositions to metal products, such that corrosion protection of the products is achieved. The methods include an in-situ application to existing structures with metal reinforcement as well as applications to metal products during manufacture. Generally, the compositions may be in various forms and comprise one or more layers, at least one of which includes a water repellent but water vapor permeable carrier component and one or more pH buffer components. The buffer is selected to produce a passivating pH at the surface of the metal.

Abstract: 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 contacting the brine with the additive which is in the vapor phase. Optionally, a substituted carboxylic acid, such as hydroxy carboxylic acid, may be used to increase the amount of ammonia or amine that can be included in the high density brine without precipitation of salts.

Abstract: The disclosure relates to improved gel/grease compositions as well as grease compositions capable of imparting improved corrosion resistance. The grease includes a silica/silicate mixture that can imparts a relatively high pH and corrosion resistant properties to the grease.

Abstract: Fluorescent monomers of the formula wherein M is selected from the group consisting of hydrogen, sodium, potassium, cesium, rubidium, lithium and ammonium, and n is selected from the group consisting of 1, 2, 3, 4, 6 and 9; are provided which are useful in the production of pyranine-tagged polymers which can be detected using a fluorometer and can be used in industrial water systems as treatment polymers.

Abstract: The task of the invention is to provide an anti-corrosion layer for sheet metals, which exhibits corrosion inhibiting characteristics even after prolonged exposure to air and humidity.

Abstract: A composition and method is disclosed for inhibiting the corrosion of metals in contact with an aqueous system capable of corroding the metal. The inventive composition contains a substantially water-soluble polymer of an acidic amino acid and at least one water-soluble salt of molybdenum or zinc. The composition is substantially non-toxic and environmentally acceptable and is supplied in a corrosion-inhibition amount to the otherwise metal-corrosive aqueous system.

Abstract: A metal plate having a rust preventive organic layer, said rust-preventive organic layer being a colloid or micelle of a slightly water soluble organic corrosion inhibitor as an organic layer mixed with and dispersed in a matrix resin, its production process and a treatment liquid in which it is processed.

Abstract: This invention relates to novel compositions and methods whereby a carboxylate based brine solution is used in drilling and/or well bore treating operations to inhibit corrosion of fluid handling equipment. In one embodiment of the invention the carboxylate based brine solution consists of a carboxylate salt dissolved in water. This brine solution is used to prepare halide-free drilling fluids. Use of halide-free drilling fluids inhibits corrosion stainless steel surfaces of fluid handling equipment. In an alternative embodiment of the present invention a mixed salt brine containing a carboxylate salt and a halide salt is provided for use in a drilling and/or well bore treating operations.

Abstract: An aqueous solution that will prevent rust, corrosion and scale on metal surfaces that includes potassium sorbate at percentages above 0.3%. This aqueous solution is effective at pH 4.5. However, its optimum effectiveness as a rust preventive is at pH 6.0 and above. The solution can be produced in a concentrated form and then diluted with tap or deionized water. The potassium sorbate solution has reduced conductivity and reduced oxygen content, both relative to tap water. This is believed to be the technical basis for its ability to prevent rust. Furthermore, the combination of lower conductivity and reduced oxygen content renders the potassium sorbate solution less viable for microbiological growth which prevents the solution from becoming rancid when it is used in re-circulating water systems. This also permits the use of toxic biocides to be eliminated in re-circulatory water systems, which are often used to reduce and control microbiological growth.

Abstract: Compositions comprising certain amino acids such as aspartic acid, when fully ionized at alkaline pH, function effectively as corrosion inhibitors for ferrous metals in the presence of an aqueous medium. This effect is enhanced with increased fluid velocity.