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8057642 |
Method of corrosion prevention
This invention relates to a process for reducing the corrosion rate of iron-containing vessels within an ethylene glycol distillation system. The inventive process includes the addition of an...
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8043531 |
Surface conditioner and surface conditioning method
The invention provides a surface conditioner which can prevent an aluminum alloy from stray current corrosion in chemical conversion treatment and reduce the difference between contact and...
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8003013 |
Waterborne corrosion-resistant coating
A waterborne thermoset cured anticorrosion formulation includes a water dispersed or emulsified phosphonated or water dispersed or emulsified sulfonated epoxy resin that is cured with a phenoxy...
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RE42384 |
Corrosion resistant composition for treatment of concrete structures
Water soluble materials, compositions and systems for use in treating concrete-containing materials and surfaces are disclosed. Treatment modalities that include addition of the disclosed...
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7935274 |
Phosphonic acid and polyvinyl alcohol conversion coating
Compositions for preparing coatings on metal substrates include a phosphonic acid, polyvinyl alcohol, an optional catalyst, and optionally an organo-functional silane. The catalyst may be a group...
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7820076 |
Oleaginous corrosion and mildew-inhibiting composition
The invention relates to an oleaginous mildew and corrosion-inhibiting composition, and the use of said composition to protect metal from corrosion and mildew. The composition comprises, in parts...
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7811670 |
Coating compositions exhibiting corrosion resistance properties, related coated substrates, and methods
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...
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7776233 |
Oleaginous corrosion resistant composition
The invention relates to an oleaginous corrosion-inhibiting composition, and the use of said composition to protect metal from corrosion. The composition comprises, in parts by weight, from about...
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7767111 |
Surface conditioner and method of surface conditioning
A surface conditioner contains zinc phosphate particles of D50 of 3 μm or less and has a pH of 3 to 12, and also contains at least one of (1) carboxylate group-containing copolymers obtained by ...
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7744775 |
Heat transfer fluid compositions for cooling systems containing magnesium or magnesium alloys
In one embodiment, a corrosion inhibiting composition is formed by combining: (a) an inorganic phosphate; (b) a water soluble polyelectrolyte polymer dispersant; (c) a tri or tetracarboxylic acid;...
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7513948 |
Autogenous healing of cracks in concrete structures
Systems and methods for enhanced autogenous healing of cracks that are formed or are present in concrete-containing materials and surfaces are disclosed. Treatment modalities that include addition...
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7513946 |
Chrome free and zinc-poor, anti-corrosive pigment mixture and method for the production and use thereof
Chromium-free, low-zinc, corrosion-inhibiting pigment mixture (A) comprising (a1) 30% to 60% by weight of at least one calcium hydrogen phosphate pigment,(a2) 15% to 45% by weight of at least one...
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7498090 |
Combination including corrosion resistant composition
A combination includes a composition providing corrosion resistance for application to a post-construction material, and a post-construction material, wherein the composition is applied to at least...
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7459102 |
Supramolecular oxo-anion corrosion inhibitors
A corrosion inhibitor that includes several oxo-anion compositions useful for preventing the propagation of pit corrosion on aluminum and aluminum alloys. The oxo-anion compositions may include...
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7422793 |
Non-toxic corrosion-protection rinses and seals based on rare earth elements
Rinsing or sealing solutions comprising a rare earth element and a valence stabilizer for barrier films. The treated films contain a rare earth/valence stabilizer complex. The rare earth element is...
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7407711 |
Non-toxic corrosion-protection conversion coats based on rare earth elements
Conversion coatings comprising a rare earth element and a valence stabilizer combined to form a rare earth/valence stabilizer complex are described for substrate metals. The rare earth element is...
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7407535 |
Corrosion resistant composition for treatment of concrete structures
Water soluble materials, compositions and systems for use in treating concrete-containing materials and surfaces are disclosed. Treatment modalities that include addition of the disclosed...
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7390847 |
Polymer derivatives for the treatment of metals
A composition for the treatment of metal surfaces and for the deposition of metals or metal alloys on plastics surfaces contains a) at least one polymer as component A, composed of the structural...
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7381252 |
Anti-corrosion additive composition for concrete compositions for use in reinforced concrete structures
An anti-corrosive additive composition is provided that includes an alkali-based salt of dioic acid and a defoamer agent. The defoamer agent is generally selected from the group consisting of a...
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7179403 |
Anti-corrosion solutions for air dehumidification systems
Anti-corrosion solutions useful for air dehumidification processes are disclosed. Phosphonate corrosion inhibiting agents or mixtures thereof can be added to halide solutions of alkali metals,...
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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...
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6913711 |
Corrosion inhibitors
There is provided a cosmetic or topical composition for use on the human body having a phosphate compound in an amount effective to inhibit corrosion of metallic containers containing the...
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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...
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6866797 |
Corrosion inhibitors and methods of use
A class of quaternary ammonium compounds are found to be effective as corrosion inhibitors. These quaternary ammonium compounds may be used alone or in combination with additional components. For...
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6846437 |
Ammonium polyphosphate solutions containing multi-functional phosphonate corrosion inhibitors
A corrosion-inhibited fire retardant composition is provided that comprises at least one ammonium polyphosphate, at least one suspending agent, at least one phosphonate selected from a group...
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6814885 |
Scale and corrosion inhibitors
A scale and corrosion inhibitor for use in the treatment of water comprises at least one oxyalkylene unit and at least one phosphonate unit (e.g. a unit derived prom a mono- or di-phosphonic acid...
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6805756 |
Universal aqueous coating compositions for pretreating metal surfaces
A universal aqueous composition and a process for using such a composition for pretreating metal substrates is provided. The aqueous composition includes a hydroxy functional cyclic compound, such...
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6780824 |
Emulsifier system, anti-corrosive and low-temperature lubricant emulsion
Emulsifier system containing a) ethoxylates/propoxylates of fatty alcohols with 8 to 18 C atoms in the alcohol with 2 to 6 ethylene oxide units and 4 to 8 propylene oxide units, b) fatty alcohols...
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6740173 |
Method for protecting metals against corrosion and non-polluting reactive composition therefor
The invention concerns a method for protecting metal products against corrosion, characterised in that it consists in applying directly on the metal products, that is without prior treatment, a...
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6733687 |
Hybrid supplemental coolant additive
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...
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6624227 |
Phosphonic acid reaction products and use in coating compositions
The invention provides an aqueous coating composition comprising nonionically and/or anionically stabilized film-forming polymers and metallic pigments and a compound which is the reaction product...
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6579472 |
Corrosion inhibiting sol-gel coatings for metal alloys
An anti-corrosive sol-gel that is a combination of an organometallic salt, an organosilane, and a borate, phosphate, or zinc functional component. The organosilane component may be selected from a...
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6558619 |
High performance phosphorus-containing corrosion inhibitors for inhibiting corrosion drilling system fluids
A corrosion inhibitor comprising a quantity of a phosphorylated oxyalkylated polyol at a pH of 5.0 or higher which produces a first level of corrosion loss in an oxygenated corrosive system under...
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6508951 |
Low P type coolant composition
A glycol-based coolant composition which provides an excellent metal corrosion inhibition despite its low phosphorus content is disclosed. The glycol-based coolant composition contains: (A)...
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6447594 |
Strontium chromate corrosion inhibitor pigment with reduced solubility
A process for producing a strontium chromate corrosion inhibitor includes the steps of providing an aqueous slurry containing dispersed particulate strontium chromate, adding to the slurry a...
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6416712 |
Corrosion inhibition method suitable for use in potable water
Effective corrosion inhibitors having minimal organic content, particularly suitable for use in municipal drinking water systems, are described. The corrosion inhibiting additive is a stannous salt...
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6309477 |
Non-chromium pretreatment chemicals
The present invention is relates to pretreatment chemicals metal materials to be painted containing at least one kind of sulfur-containing compounds and at least one of phosphorus ion-containing...
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6299983 |
Derivatized metallic surfaces, composites of functionalized polymers with such metallic surfaces and processes for formation thereof
This invention provides for metal surfaces which when derivatized with α-ω bis-functionalized substantially linear aliphatic, including fluoroaliphatic acids and metal salts thereof exhibit c...
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6248701 |
Aqueous metal coating composition and process with reduced staining and corrosion
A combination of sulfur-free azoles, preferably benzotriazole and tolyltriazole, with sulfur-containing azoles, preferably 2-mercaptobenzothiazole or mercaptobenzimidazole, prevents discoloration,...
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6238594 |
Intumescent material
An intumescent material includes a liquid carrier with a corrosion inhibitor, such as a coating forming material, expandable particulate graphite (flake graphite or lump graphite) and if desired a...
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6176907 |
Anti-corrosion coating material
Formulation for anti-corrosion coating materials, comprising (i) 3-30% by mass of a monomeric and/or polymeric, metal-free or metal-containing, chelate-forming compound, (ii) 10-80% by mass of a...
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6162391 |
Scale inhibition agent and method for using same
An agent for preventing scale formation and a method for preventing scale formation include a polymer which has at least 50% of N-vinyl formamide units or N-vinyl acetamide units and a phosphorus...
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6099755 |
Method and composition for inhibiting scale and controlling corrosion in cooling water systems
A method and composition for simultaneously controlling the deposition of scale and the formation of corrosion in a cooling water system comprising adding to the system a combination of (a) a water...
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6071434 |
Phosphino derivatives
The reaction of compounds of the formula: X2 O3 P CHY CZ2where Y and each Z are each H, PO3 X2, SO3 X or CO2 X (e.g. vinyl phosphonic acid or vinylidene diphosphonic acid) with hypophosphorous acid...
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6024892 |
Anticorrosion and pH stable alkali metal halide solutions for air dehumidification
Anticorrosion and pH-stabilized brine solutions useful for air dehumidification processes are disclosed. Inorganic and organic buffering agents or mixtures thereof can be added to halide solutions...
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5863415 |
Control of naphthenic acid corrosion with thiophosporus compounds
Corrosion of iron-containing metal surfaces in a hydrocarbon fluid having a temperature of from about 175° C. to about 400° C. and containing a corrosive amount of naphthenic acid is inhibited by a...
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5863464 |
Methods of inhibiting corrosion using halo-benzotriazoles
The use of halo-benzotriazoles as corrosion inhibitors in aqueous systems is disclosed. Halo-benzotriazoles such as chloro-tolyltriazole and bromo-tolyltriazole were found to be more effective...
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5833881 |
Composition for inhibiting deposits in the calcination of fluxed iron ore pellets
A stable aqueous solution comprising a water soluble salt of a magnesium compound, a surfactant and a calcium salt inhibitor is used to reduce deposits in kilns or furnaces used to make iron ore...
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5779774 |
Rust inhibiting phosphate ester formulations
Mixtures of alkylaromatic secondary phosphate and tertiary phosphate esters prepared by reaction of phosphonyl chloride and primary phosphonyl chlorides with alkylaromatic phenols are disclosed as...
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5772893 |
Ether diphosphonate scale inhibitors
The invention is a method for the prevention of scale formation on metal or other surfaces in contact with scale-forming industrial water with an effective scale-inhibiting amount of an ether...
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