Abstract: There is disclosed a rust inhibitor comprising glycerol-1-alkylphenoxy-3-ethyleneglycol ether of the formula ##STR1## wherein R is an alkyl group of C.sub.6-18. A composition having rust preventing effect may be obtained by adding the rust inhibitor to a mineral oil.

Abstract: A single-phase antifreeze or coolant concentrate is disclosed comprising an alcohol, a silicone-silicate copolymer and an organic basic pH buffer and corrosion inhibitor comprising a hydroxybenzoic acid or mixtures thereof. The concentrates are preferably used as coolants either undiluted or upon dilution with about 30 to about 90 percent by weight of water based upon the total weight of the coolant. The alcohol is preferably ethylene glycol. The coolant compositions are especially effective in inhibiting the corrosion of aluminum internal combustion engine and radiator components.

Abstract: A single-phase antifreeze or coolant concentrate is disclosed comprising a major proportion of at least one alcohol, at least one water-soluble silicate, and an organic basic pH buffer and corrosion inhibitor comprising at least one hydroxybenzoic acid. The concentrates can be used without dilution but are preferably used, upon dilution with water. The concentrates are generally diluted for use in with about 25 to about 90 percent by weight of water based upon the total weight of the concentrate. The alcohol is preferably ethylene glycol. The alcohol-based antifreeze and coolant compositions of the invention are effective in the protection against corrosion of all metals and alloys used in industrial processes and are especially effective when used to inhibit the corrosion of aluminum internal combustion engine and radiator components.

Abstract: This invention relates to single-phase antifreeze and coolant concentrates comprising an alcohol, a metal salt of a carboxysiloxane and an organic basic pH buffer and corrosion inhibitor comprising a hydroxybenzoic acid or mixtures thereof. The concentrates are preferably used as coolants either undiluted or upon dilution with about 25 to about 90 percent by weight of water based upon the total weight of the concentrate. The alcohol is preferably ethylene glycol. The coolant compositions are effective in providing protection against corrosion of all metals and alloys used in industrial heat exchangers and are especially effective in inhibiting the corrosion of aluminum internal combustion engine and radiator components.

Abstract: This invention relates to single-phase antifreeze or coolant concentrates comprising an alcohol, a corrosion inhibiting amount of a water-soluble organosiloxane-silicate copolymer corrosion inhibitor and an organic basic pH buffer capable of buffering pH in the range of about 9 to about 11 comprising a hydroxybenzoic acid or mixtures thereof. The concentrates are used as coolants either undiluted or upon dilution with about 25 percent to about 90 percent by weight of water based upon the total weight of the concentrate. The alcohol is preferably ethylene glycol. The coolant compositions are effective in providing protection against corrosion of all metals and alloys used in industrial heat exchangers are especially effective in inhibiting the corrosion of aluminum internal combustion engine and radiator components.

Abstract: A single-phase antifreeze or coolant concentrate is disclosed comprising an alcohol, an aminosilicone-silicate copolymer and an organic basic buffer and corrosion inhibitor comprising a hydroxybenzoic acid or mixtures thereof. The concentrates are preferably used as coolants either undiluted or upon dilution with about 25 to about 90 percent by weight of water based upon the total weight of the concentrate. The alcohol is preferably ethylene glycol. The coolant compositions are effective in providing protection against corrosion of all metals and alloys used in industrial heat exchangers and are especially effective in inhibiting the corrosion of aluminum internal combustion engine and radiator components.

Abstract: This invention relates to single-phase antifreeze or coolant concentrates comprising (1) an alcohol, (2) at least one of an amino siloxane, an amino silane or both an amino siloxane and an amino silane and a siloxane of the formula: ##EQU1## wherein R.sup.6 is a monovalent hydrocarbon group and e has a value of from 1 to 3, and (3) a hydroxybenzoic acid basic pH buffer preferably comprising para or ortho hydroxybenzoic acid or mixtures thereof. The concentrates are preferably used, upon dilution with about 30 to about 90 percent by weight of water based upon the weight of said concentrate, as antifreeze compositions for internal combustion engines. The alcohol is preferably ethylene glycol. The coolant compositions are effective in providing protection against corrosion of all metals and alloys used in industrial heat exchangers and are especially effective in inhibiting the corrosion of aluminum internal combustion engine and radiator components.

Abstract: Poly(arylene sulfide) coating compositions are described comprising a mixture of a poly(arylene sulfide) and a salt of an arylalkanoic acid in an aqueous medium.

Abstract: This invention relates to single-phase antifreeze or coolant concentrates comprising an alcohol, a silicone-silicate copolymer and an organic basic pH buffer and corrosion inhibitor comprising a hydroxybenzoic acid or mixtures thereof. The concentrates are preferably used as coolants either undiluted or upon dilution with about 30 to about 90 percent by weight of water based upon the total weight of the coolant. The alcohol is preferably ethylene glycol. The coolant compositions are especially effective in inhibiting the corrosion of aluminum internal combustion engine and radiator components.

Abstract: Improved brightness and corrosion resistance are imparted to metal surfaces such as zinc plated surfaces, by treatment with a non-toxic solution comprised of sulfuric acid, hydrogen peroxide, a silicate, certain primary organophosphorus compound promoters and at least one secondary promoter selected from ascorbic acid, boric acid, gluconic acid, glycolic acid, tartaric acid and salts of said acids.

Abstract: Metal corrosion inhibitor comprising (a) benzoic acid and/or a benzoate, (b) a trialkanolamine, (c) phosphoric acid and/or a phosphate, and (d) at least one selected from mercaptobenzothiazole, its salts, benzotriazole and tolyltriazole, which can exhibit excellent anti-corrosive property to various metals for a long term and can be diluted with an aqueous liquor and can be employed in combination with usual anti-freezing agents.

Abstract: Improved corrosion inhibitor compositions for hydrocarbon fuels consisting of mixtures of (a) about 75 to 95 weight percent of a polymerized unsaturated aliphatic monocarboxylic acid having about 16 to 18 carbons, and (b) about 5 to 25 weight percent of a monoalkenylsuccinic acid wherein the alkenyl group has 8 to 18 carbons. Also described are concentrates of the above compositions in hydrocarbon solvents, as well as fuels containing the compositions.

Abstract: A material especially adapted for incorporation in a coating composition, for example, as a secondary pigment, and characterized in having corrosion inhibiting properties. The material consists of finely particulate material on which is coated a film of fatty amine or fatty amine salt. The material coated on the particles is characterized in having a high area to volume ratio and the properties thereof in respect of inhibiting corrosion are thereby enhanced. The particulate material is advantageously natural crystalline calcium carbonate.

Abstract: This invention relates to single-phase antifreeze or coolant concentrates comprising an alcohol, a corrosion inhibiting amount of a water-soluble organosiloxane-silicate copolymer corrosion inhibitor and an organic basic pH buffer capable of buffering pH in the range of about 9 to about 11 comprising a hydroxybenzoic acid or mixtures thereof. The concentrates are used as coolants either undiluted or upon dilution with about 25 percent to about 90 percent by weight of water based upon the total weight of the concentrate. The alcohol is preferably ethylene glycol. The coolant compositions are effective in providing protection against corrosion of all metals and alloys used in industrial heat exchangers are especially effective in inhibiting the corrosion of aluminum internal combustion engine and radiator components.

Abstract: This invention relates to single-phase antifreeze or coolant concentrates comprising a major proportion of at least one alcohol, at least one water-soluble silicate, and an organic basic pH buffer and corrosion inhibitor comprising at least one hydroxybenzoic acid. The concentrates can be used without dilution but are preferably used, upon dilution with water. The concentrates are generally diluted for use in with about 25 to about 90 percent by weight of water based upon the total weight of the concentrate. The alcohol is preferably ethylene glycol. The alcohol-based antifreeze and coolant compositions of the invention are effective in the protection against corrosion of all metals and alloys used in industrial processes and are especially effective when used to inhibit the corrosion of aluminum internal combustion engine and radiator components.

Abstract: This invention relates to single-phase antifreeze or coolant concentrates comprising an alcohol, an aminosilicone-silicate copolymer and an organic basic buffer and corrosion inhibitor comprising a hydroxybenzoic acid or mixtures thereof. The concentrates are preferably used as coolants either undiluted or upon dilution with about 25 to about 90 percent by weight of water based upon the total weight of the concentrate. The alcohol is preferably ethylene glycol. The coolant compositions are effective in providing protection against corrosion of all metals and alloys used in industrial heat exchangers and are especially effective in inhibiting the corrosion of aluminum internal combustion engine and radiator components.

Abstract: Methylol polyester derivatives of C.sub.12 -C.sub.22 hydrocarbon substituted succinic anhydride or acid which are the equimolar reaction products of said C.sub.12 -C.sub.22 hydrocarbon substituted succinic anhydride or acid and a cyclic poly(methylol) compound provide activity: in fuels as rust inhibitors; in automatic transmission fluids as copper corrosion inhibitors; and, in automotive, industrial and lubricating oils as sludge dispersants, rust-inhibitors, friction reducers (lubricity agents) and copper alloy corrosion inhibitors.

Abstract: Composition containing organic magnesium and organic manganese compounds as a fuel conditioner to reduce fuel requirements and sulfur trioxide emissions and method of using same.

Abstract: Compositions containing ether diamine and salts thereof with N-acylsarcosines are disclosed. The ether diamine salts of N-acylsarcosines have the formula:[R.sub.1 O(CH.sub.2).sub.3 NH(CH.sub.2).sub.3 NH.sub.2 ].[HO.sub.2 CCH.sub.2 (CH.sub.3)NOCR.sub.2 ]wherein R.sub.1 is an aliphatic group containing from about 6 to about 18 carbon atoms and R.sub.2 is an aliphatic group containing from about 8 to about 18 carbon atoms. Also disclosed are fuel oil compositions containing said ether diamine and salts thereof, and a method for inhibiting corrosion utilizing said ether diamine salts.

Abstract: Metal working operations, especially drawing, are facilitated by applying to the metal a composition which provides lubricity thereto and which melts within the range of about 30.degree.-100.degree. C. The composition comprises at least one ester of a carboxylic acid, with a carboxylic acid or derivative thereof, a phosphorus acid salt and an antioxidant being preferred optional ingredients. The composition may be applied in liquid form and solidifies on cooling to ambient and normal storage temperatures. Prior to application, the composition is preferably heated to a temperature higher than its melting temperature for ease of flow and uniform dispersion thereof onto the metal. In a preferred method of application, a reservoir is located beneath the composition applicator and composition is pumped therefrom to the applicator, preferably a roller coater, with excess composition being recirculated.

Abstract: Metal working operations, especially drawing, are facilitated by applying to the metal a composition which provides lubricity thereto and which melts within the range of about 30.degree.-100.degree. C. The composition comprises at least one neutral ester, and preferably a mixture of esters, prepared from polyalkylene glycols and saturated aliphatic alcohols having at least about 10 carbon atoms, and C.sub.12-25 aliphatic monocarboxylic acids and C.sub.4-20 aliphatic polycarboxylic acids. The preferred ester mixtures are prepared from polyethylene glycols, C.sub.14-20 predominantly straight chain alkanols, stearic acid and adipic, azelaic or sebacic acid. Optional ingredients include phosphorus acid salts and antioxidants. The composition may be applied in liquid form and solidifies on cooling to normal ambient and storage temperatures.

Abstract: An improved rustproofing composition for application to metal panels of motor vehicle bodies for prevention of rust and corrosion of same, comprising polychloroprene polymer latex solids dispersed in an aqueous medium, surface active agents, pigments, freeze point reduction agents, rheological control agents, bacteriostatic agents, pH-control agents, and corrosion inhibitors.

Abstract: Esters of C.sub.10-25 aliphatic carboxylic acids (especially oleic acid) and C.sub.15-40 aliphatic alcohols (especially alcohol mixtures) are useful for protecting metal surfaces against corrosion, especially by acidic vapors. They may be applied in the form of a solution or dispersion in a substantially inert, normally liquid organic diluent such as Stoddard solvent.

Abstract: Dimethylaminomethylenebis(phosphonic acid) is prepared by reacting dimethylformamide with phosphorous trichloride and treating the reaction mixture with alcohols or glycols and water. The phosphonic acid is combined with water soluble carboxylic acid polymers for use as a corrosion and scale inhibitor in aqueous systems. These compositions may also be combined with phosphorous acid and water soluble zinc salts.

Abstract: This invention relates to useful protective compositions and a method for protecting aluminum and aluminum alloy products against water staining. The method involves applying a continuous film of a protective composition to the surface of the aluminum product. The protective compositions useful for the invention are blends or reaction products of a polybasic acid and a partial ester of a polyol.

Abstract: A machining fluid includes a basic component in the form of an aqueous solution and an aliphatic acid organic compound which is produced by a fermentation process comprising cultivating a microorganism in a culture medium containing a saccharide, nitrogen source and an inorganic salt and accumulated in a culture broth and separated and recovered from the culture broth.

Abstract: A metal corrosion inhibitor and method of its application are provided. The inhibitor is a composition prepared by adding an alkali metal nitrite, ammonium benzoate, an alkylalkanolamine and a nitrogenous base such as urea to water. The inhibitor is applied as a mist or spray to the exposed edges of coiled and cut length sheets of steel to protect the steel during storage and is fogged into shipping containers or vehicles to protect the steel during shipping.

Abstract: Disclosed is a corrosion inhibitor for metal surfaces. The surface is contacted with an alkaline aqueous solution containing a reaction product of an aliphatic carboxylic acid, a polyhydroxy carboxylic acid and an alkanol amine.

Abstract: The initial step for conventionally reprocessing spent nuclear fuel is to treat the nuclear fuel rods with concentrated nitric acid at elevated temperatures to dissolve out the contents of the fuel rods. The resultant solution contains ruthenium values present in an oxidation state of at least +4 and the presence of such ruthenium values causes intolerably high corrosion of stainless steel equipment which may come in contact with the hot concentrated nitric acid solution. The corrosion of stainless steel from such ruthenium-containing nitric acid solutions may be inhibited by treating the solutions with a reducing agent comprising nitrogen oxide. It is especially convenient to generate the reducing agent in situ by adding a sugar (e.g. sucrose) to the nitric acid solution so as to reduce substantially all of the dissolved ruthenium values having an oxidation state of at least +4 to an oxidation state of less than +4.

Abstract: Oxidative corrosion in cooling water systems containing chlorine to prevent bacterial growth is effectively inhibited by the addition of small amounts of a water-soluble polyphosphate and a water-soluble gluconate. Specific examples of salts are sodium hexametaphosphate and sodium gluconate. The combination of a polyphosphate and a gluconate results in a synergistic improvement of corrosion inhibition.

Abstract: A method for inhibiting corrosion of non-noble metals in contact with circulating water comprising the steps of adding to circulating water in contact with non-noble metals from 0.5 to 50 gm/m.sup.3 of at least one cyclohexanehexacarboxylic acid and adjusting said water to a pH of from 6 to 9; as well as corrosion inhibitory compositions containing cyclohexanehexacarboxylic acid.

Abstract: A white rust inhibited composition is comprised of a zinc containing substrate. A white rust inhibiting composition contacts the substrate and is comprised of a vapor corrosion inhibitor and a pH adjusting compound to adjust and maintain the pH of the white rust inhibiting composition between 8 and 12.5.

Abstract: A petroleum oxidate of gel resistant properties characterized by a Neut. No. between about 40 and 50, a Sap. No. between about 85 and 105, a specific gravity between about 0.99 and 1.03, a viscosity (SUS at 210.degree. F.) of between about 1200 and 2500 and a melting point of between about 85.degree. and 115.degree. F.; a calcium soap thereof having a calcium content of between about 1.2 and 1.9 wt. % and a melting point between about 155.degree. and 230.degree. F. of gel resistant properties under cutback conditions; said oxidate, calcium soap and cutback thereof respectively prepared by contacting a deasphalted naphthene base residual oil having a molecular weight of between about 300 and 900, a saturate content between about 40 and 60 wt. %, an aromatic content between about 60 and 40 wt. %, a methylene to methyl group mole ratio of between about 1:1 and 2.5:1, and an SUS viscosity (210.degree. F.) of between about 150 and 170, with air at an air rate of between about 5 and 40 SCFH/lb.

Abstract: Compositions for inhibiting corrosion and scale formation in aqueous systems which consist essentially of from 20 to 97.5% by weight of total composition of (a) a combination of zinc and hydrolyzed polymaleic anhydride and (b) 2.5 to 80% by weight of total composition of a corrosion inhibitor, particularly benzotriazole.

Abstract: For inhibiting corrosion and scale on ferrous metal parts in a circulating water system there is added to the water in such system from 10 to 500 ppm of a partial ester of a polyfunctional acid having a free carboxylate, phosphonate or sulfonate group and another carboxyl group which is esterified with a polyoxyalkylated derivative of an alkyl, alkaryl, or alkenyl alcohol having a terminal hydrocarbon group of 8-20 carbon atoms. In some preferred embodiments there is added with the partial ester from 10 to 500 ppm of a dispersible oil which may also include a surface active agent for dispersing the oil in water. Preferred partial esters include partial esters of citric, malic, tartaric, maleic, adipic and phthalic acids partially esterified with an alkyl polyoxyethylene alcohol having 2 to 4 ethoxy groups.

Abstract: A new class of monoepoxyethylenecyclohexyl compounds useful as acid scavengers and corrosion inhibitors in functional fluid compositions.

Abstract: Stabilized methylene chloride and process for stabilizing methylene chloride against its decomposition by supplying thereto 2-methylfuran and one or more expoxides.

Abstract: A method and structure for protection of metals subject to corrosion by acidic gases. Metals are enclosed within an air-confining structure with a black sorbent thermoset foam, highly sorbtive of acidic vapors.

Abstract: The corrosion of ferrous metals by corrosive acids at elevated temperatures is inhibited by adding to environments containing the acids an effective amount of a novel .alpha., .OMEGA. (hereinafter "alpha", "omega", respectively) diacetylenic diol (e.g., with two acetylenic functionalities) having the structural formula: ##STR1## where R is an aliphatic, alicyclic or aromatic residue containing from 1 to about 12 carbon atoms and may include one or more functional groups such as halogen atoms, carbonyl, carboxyl, carbamyl, amino, formyl or nitroso radicals or other functional groups without impaired performance. The diacetylenic diols may be employed in combination with other corrosion inhibitors.

Abstract: A liquid phosphatizing composition, containing organic solvent such as 1,1,1-trichlorethane or trichlorofluoromethane, can provide phosphate coatings on metal articles. In addition to the organic solvent, the composition contains a phosphatizing proportion of phosphoric acid and a solubilizing liquid capable of solubilizing phosphoric acid in the organic solvent. Most critically, the composition contains water in an amount exceeding the proportion of phosphoric acid, yet, the water-containing liquid composition maintains liquid phase homogeneity. Phosphatized coatings of desirable water insolubility are obtained.

Abstract: A corrosion inhibitor, particularly suitable for use in pipelines used for the transportation of hydrocarbon fluids such as crude petroleum or refined petroleum fractions, comprises a mixture of (a) from 1.8 to 25 parts by weight dimerised unsaturated fatty acid and (b) 1 part by weight of an alkoxylated alkyl phenol and provides a WSIM number (as defined) of at least 60.

Abstract: For inhibiting corrosion and scale on ferrous metal parts in a circulating water system there is added to the water in such system from 10 to 500 ppm of a partial ester of a polyfunctional acid having a free carboxylate, phosphonate or sulfonate group and another carboxyl group which is esterified with a polyoxyalkylated derivative of an alkyl, alkaryl, or alkenyl alcohol having a terminal hydrocarbon group of 8-20 carbon atoms. In some preferred embodiments there is added with the partial ester from 10 to 500 ppm of a dispersible oil which may also include a surface active agent for dispersing the oil in water. Preferred partial esters include partial esters of citric, malic, tartaric, maleic, adipic and phthalic acids partially esterified with an alkyl polyoxyethylene alcohol having 2 to 4 ethoxy groups.

Abstract: Ashless rust-inhibited lubricating oil compositions comprising a major portion of a mineral lubricating oil, and a minor, rust inhibiting amount of a polyhydric ester represented by the formula: ##STR1## in which R and R' are hydrogen or hydrocarbyl radicals having from 1 to 24 carbon atoms, r, m and n are integers ranging from 0 to 10.

Abstract: Anticorrosive agent based on saponified ene-adducts of maleic anhydride to unsaturated fatty acids or derivatives thereof.

Abstract: Thiophosphates of the formula ##EQU1## where X is O or S, R is a hydrocarbon or a substituted hydrocarbon group such as alkyl, aryl, cycloalkyl, alkaryl, aralkyl, etc., and R' is a 3-thione-propene-1 or a substituted 3-thione-propene-1 group; the preparation thereof by reacting a 1,2-dithiolium compound with a phosphite ester; the reversion to the original dithionium compound is effected by reacting the thiophosphate under acid conditions; and the uses of such thiophosphates as corrosion inhibitors in acid systems.

Abstract: Disclosed herein are additives for petroleum hydrocarbons, e.g., gasoline, oil, and solvents, to inhibit corrosion or rusting of metals. The additives comprise a major amount of a liquid C.sub.21 -dicarboxylic acid having the following structure, the bis-alkanolamide derivative of this material, the mono-alkanolamide derivative of this material, or the salt of the monoalkanolamide derivative of this material: ##EQU1## wherein x and y are integers from 3 to 9, x and y together equal 12 and Z is a member of the group consisting of hydrogen and COOH, with one Z of each moiety. An additional aspect of the subject invention is that the C.sub.21 -dicarboxylic acid of the formula shown above may be blended with up to 80% by weight of such fatty acids as oleic acid, coconut fatty acid, soya fatty acid, tall oil fatty acids and others and still retain significant corrosion inhibiting properties.

Abstract: A composition which will inhibit the formation of rust on the surface of a metal consists of a mixture of an organic acid, an N-alkyl- or cycloalkyl-substituted ethanolamine, at least one emulsifying agent and water.

Abstract: Functional fluid compositions comprising a major amount of a base stock material which is an ester or amide of an acid phosphorus, a di- or tricarboxylic acid ester, an ester of a polyhydric compound or mixtures thereof, optionally minor amounts of other base stock materials or base stock modifiers such as viscosity index improvers, cavitation damage inhibitors, and lubricity agents, and an additive amount of an acid scavenger and corrosion inhibitor which is a monoepoxy substituted cyclohexane such as C.sub.1-4 alkyl-3,4-epoxycyclohexane. The compositions are particularly useful as aircraft hydraulic fluids.

Abstract: Liquid detergent compositions based on water-soluble alpha-olefin sulfonate detergent, preferably together with a higher alcohol ethoxylate sulfate detergent, include an anti-gelling agent, such as sodium chloride, together with a nitrate, such as sodium nitrate, the combination of which helps prevent gelation and filming of the liquid detergent on standing and also prevents corrosion of ferrous metals and ferrous alloys, such as stainless steel, which may be brought into contact with the liquid detergent compositions.

Abstract: Method for inhibiting the corrosion and scale forming tendencies of water or an aqueous system which comprises treating the water or aqueous system with from 0.1 to 500 p.p.m. of an additive combination comprising zinc and hydrolysed polymaleic anhydride.