Abstract: Thin coatings of dioctyl sebacate, sodium benzoate, and certain sarcosine surfactants provide enhanced rust protection for steel. The sarcosine surfactant may range from 5 to 50 percent of the dioctyl sebacate, and the sodium benzoate should be in the range of 0.5 to about 1 percent of the total composition.

Abstract: Triazine di- and tricarboxylic acids of the formula ##STR1## wherein Z is a straight-chain or branched chain unsubstituted or substituted 1-11C alkylene group, a 2 or 3C alkenylene group, a 5-12C cycloalkylene group or an unsubstituted or substituted arylene group, X is H, an alkali metal, an alkaline earth metal, NH.sub.4.sup.+ or a primary, secondary or tertiary 1-12C ammonium residue, R.sub.1 and R.sub.2 are the same or different and each is H, 1-4C alkyl or a group --Z--COOX or R.sub.1 or R.sub.2 together with Z can form a 5- or 6-membered heterocyclic ring, R.sub.3 is 1-12C alkyl, phenyl or a group of formula --NR.sub.4 R.sub.5, --OR.sub.6 or --SR.sub.6 in which R.sub.4 and R.sub.5, independently, are H, 1-12C alkyl optionally substituted by a hydroxyl group, cyclohexyl, an aryl group having from 6 to 10 ring carbon atoms, optionally substituted or a group --Z--COOX and R.sub.6 is H, 1-12C alkyl, or a 6-12C aryl group, are excellent corrosion inhibitors for aqueous systems in contact with ferrous metals.

Abstract: A method for treating water to retard corrosion due to dissolved oxygen, especially boiler feed waters and boiler water condensates, is disclosed. Semicarbazide and its salts are highly effective oxygen scavengers for use in aqueous systems and thereby effect reduction of corrosion resulting from dissolved oxygen.

Abstract: As a detergent and corrosion inhibiting fuel additive, the product resulting from the condensation reaction of a C.sub.9 to C.sub.30 alkenylsuccinic anhydride in the presence of a base to form an intermediate spirodilactone followed by the reaction of the intermediate spirodilactone with diethylenetriamine and a fuel composition containing same.

Abstract: Alcohols may be inhibited against corrosion by addition thereto of an ether amine ##STR1## typically C.sub.12 H.sub.25 OCH.sub.2 CH.sub.2 CH.sub.2 NHCH.sub.2 CH.sub.2 CH.sub.2 NH.sub.2.

Abstract: Alcohols may be inhibited against corrosion by addition thereto of an amine [R(OR').sub.n ].sub.a --NH.sub.3-a typically dodecyloxy-(isopropoxy)-isopropylamine.

Abstract: Composition providing aluminum corrosion resistance comprising aqueous and/or alcohol solution of a polymerizable-acid graft copolymer consisting of a poly(oxyalkylene) compound grafted with an unsaturated acid, said graft copolymer having a percent graft of between about 1 and about 60 percent. Typical acids would be those selected from the group consisting of acrylic, methacrylic, crotonic and maleic acids.

Abstract: A novel fuel composition containing a hydrocarbon boiling in the gasoline boiling range plus optionally ethanol or methanol plus, as a corrosion inhibitor, a dialkoxylated alkyl polyoxyalkyl primary amine ##STR1## typified by ##STR2##

Abstract: The subject invention relates to corrosion inhibitors prepared by reacting certain imidazolines or precursors thereof with sulfur. The corrosion inhibitors are particularly useful in inhibiting corrosion of metal tanks caused by CO.sub.2 and H.sub.2 S ("acid gas") during the transport and storage of crude oils.

Abstract: The invention relates to corrosion inhibitors which are amides of cyclic amidines. The inhibitors are particularly useful for preventing the corrosion of metals caused by H.sub.2 S and CO.sub.2 in water-in-oil, particularly in saltwater-in-oil emulsions.

Abstract: Rust-inhibiting compounds, especially for aqueous systems such as tool-lubricating emulsions for machine tools and which consist of amine salts of a number of monoaminoalkylene dicarboxylic acids are disclosed.These rust-inhibitors are used in combination with water and an alkanolamine.Examples and test results are given.

Abstract: A corrosion inhibitor for aqueous solutions of mineral acids consisting essentially of the reaction product obtained by the catalytic ethynylation of a dialkylamine, a substituted benzaldehyde and acetylene, said reaction product being a complex material which contains predominately a 3-dialkylamino-3-(substituted phenyl) prop-l-yne.

Abstract: An aqueous composition for inhibiting the corrosion of metals placed therein is described. The composition comprises a non-oxidizing acid and, as a corrosion inhibitor, an effective amount of a 3-dialkylamino-3-(substituted phenyl)-prop-1-yne.

Abstract: Corrosion inhibiting aqueous functional fluid compositions are provided which comprise (a) water (b) a water soluble or dispersible, surface active, corrosion inhibiting alkali metal, ammonium or organic amine salt of a water insoluble C.sub.4 to C.sub.9 aliphatic monohydric secondary alcohol half ester of a hydrocarbon cyclic dicarboxylic acid or anhydride, said half ester having a molecular weight of from 240 to 297, (e.g. monoethanolamine salt of the 2-octanol half ester of phthalic acid) and optionally (c) a substance selected from the group consisting of an anionic surfactant, a nonionic surfactant, a cationic surfactant, an amphoteric surfactant and a lubricant or mixture thereof, the fluid having a pH in the range of 8 to 12. Such aqueous fluids are useful as metal working fluids.

Abstract: Corrosion inhibiting aqueous functional fluids having high stability are provided which contain (a) water, (b) a corrosion inhibiting, surface active, water soluble or dispersible alkali metal, ammonium or organic amine salt of a water insoluble carboxylic acid group terminated monoamide, (c) a second surface active agent and optionally, (d) water soluble or dispersible lubricant. These functional fluids are useful as a metal working fluid or hydraulic fluid.

Abstract: A novel fuel composition contains ethanol or gasohol plus, as a corrosion inhibitor, a reaction product of benzotriazole, formaldehyde, and an N-alkyl propylene diamine.

Abstract: The resistance of iron and steel to corrosion from contact with water is enhanced by including in the water an agent selected from an acid addition salt of methacrylic acid and a 2-mono (lower) alkylaminoethyl methacrylate, or a polymer of an acid addition salt of methacrylic acid and a 2-mono (lower) alkylaminoethyl methacrylate in an amount effective for enhancing corrosion resistance.

Abstract: The corrosion of iron and steel surfaces by an aqueous alkanolamine conditioning solution used to remove CO.sub.2 from a gas stream is effectively inhibited by a combination of a vanadium containing ion and a di- or triamine. A surprising fact is that some of the amine co-inhibitors have been identified by others in the art as promoting ferrous metal corrosion.

Abstract: Corrosion-inhibited compositions are described comprising a functional fluid in contact with a ferrous metal and, as corrosion inhibitor, a compound having the formula: ##STR1## wherein X is H, an alkali- or alkaline earth metal, NH.sub.4, the residue of a protonated amine, or the group --OX is the residue of an alkanol having from 1 to 20 carbon atoms or of di-, tri- or tetra-ol having from 2 to 12 carbon atoms; R.sup.1, R.sup.2 and R.sup.4 are the same or different and each is H or --CH.sub.2 CH.sub.2 COOX wherein X has its previous meaning; R.sup.3 and R.sup.5 are the same or different and each is H, --CH.sub.2 CH.sub.2 COOX wherein X has its previous meaning, or R.sup.3 or R.sup.5 is a straight- or branched chain alkyl group having from 3 to 16 carbon atoms; or R.sup.3 and R.sup.5, together with the carbon atom to which they are each attached, may form a cycloalkanone ring containing from 5 to 15 carbon atoms.

Abstract: A method is provided for preventing haze formation in a carburetor detergent and corrosion inhibiting fuel additive which is prepared by reacting a mole of maleic anhydride with from about 2 to 4 moles of a mixture of N-alkyl propane diamines of a specific alkyl chain distribution in the presence of from about 0.5 to 5 weight percent based on the N-alkyl propane diamine mixture of a phenolic antioxidant.

Abstract: This invention relates to fertilizer compositions containing alkylene oxide anticaking agents. More particularly, this invention relates to a method of decreasing the caking during storage in a hygroscopic salt or fertilizer which normally cakes on storage, which comprises uniformly admixing with said hygroscopic salt or fertilizer an effective amount of an anticaking agent consisting of one or more compounds selected from the group consisting of adducts of from 6 to 15 mols of ethylene oxide and/or propylene oxide onto 1 mol of a .beta.-hydroxyalkyl-diethanolamine of the formula ##STR1## wherein R.sup.1 is an alkyl of from 1 to 18 carbon atoms and R.sup.2 is hydrogen or alkyl of from 1 to 16 carbon atoms, the sum of the carbon atoms in R.sup.1 and R.sup.2 being from 8 to 18.

Abstract: A highly stable metal oxide oil slurry useful in reducing slag, facilitating removal of deposits from boiler tubes, and reducing corrosion on the heating surfaces of boilers has been developed. Such a slurry consists essentially of about 50% by weight magnesium oxide or the entity of magnesium oxide and alumina oxide, together with an oil-soluble emulsifier such as alkanolamide and preferably ethanolamide, or an alkanol with a carbon chain greater than a C.sub.3 alcohol, an oil-soluble dispersant such as a C.sub.12 -C.sub.22 entity selected from an unsaturated or saturated fatty acid; e.g., oleic acid. Also, as a constituent is an anionic surfactant such as magnesium lauryl sulfate in an oil base such as No. 2 fuel oil. The alkanolamide is fashioned from heating alkanolamines and fatty acids either in a 1:1 ratio or 2:1 ratio. The reactant amino alcohol is in the range C.sub.10 -C.sub.24. The alcohol itself is greater than C.sub.3 and up to C.sub.16, with a preferred range C.sub.12 -C.sub.16.

Abstract: Novel amide acetals of the formula ##STR1## wherein R.sub.1 is hydrogen, methyl or Y and Y is the remnant of a hydroxyl-containing compound are claimed. The compounds are useful as water scavengers in fluid compositions.

Abstract: The reaction products of glycidyl ethers, wherein the alkoxy portion contains from about 6 to about 20 carbon atoms, with unsubstituted alkylenediamines and polyamines of the type H.sub.2 N(CH.sub.2 CH.sub.2 NH).sub.x H are effective carburetor detergents and reduce deposits on various components of internal combustion engines. An example is the reaction product of the glycidyl ether whose alkoxy group is a mixture of 12-14 carbon atom chains with diethylenetriamine.

Abstract: Corrosion in steam condensate lines is inhibited by maintaining a mix of a hydroxylamine compound and a neutralizing amine in the water.

Abstract: Anticorrosive agent stable to hard water, which comprises an alkali metal salt, alkaline earth metal salt, or amine salt of a compound of the formula ##STR1## in which R.sub.1 is branched C.sub.6 -C.sub.13 -alkyl or C.sub.5 - or C.sub.6 -cycloalkyl, or polycycloalkyl having from 6 to 13 carbon atoms optionally substituted by 1 or 2 C.sub.1 -C.sub.4 -alkyl groups,R.sub.2 is hydrogen or C.sub.1 -C.sub.6 -alkyl, andR.sub.3 is C.sub.1 -C.sub.11 -alkylene in linear or branched chain.

Abstract: Alcohols may be inhibited against corrosion by addition thereto of a reaction product of maleic anhydride and certain alkoxy propyl amines.

Abstract: Certain substituted succinic acid, e.g., sodium alkenyl succinate, and substituted imidazoline derivatives, e.g., (ethoxypropionic acid) imidazoline, provide corrosion resistance for tin-plated steel and solvent stability to aerosol formulations containing alcohol, methylene chloride and water, which employ a hydrocarbon as the propellant.

Abstract: The lubricating characteristics of high temperature fluids used in Rankine Cycle and heat pump systems has been enhanced by incorporating therein heterocyclic arenes containing 8 to about 18 ring carbon atoms and an average of 1 to 2 ring nitrogen or S atoms per arene, and optionally 1 to 2 ring O atoms with substituents such as alkyl, amino, keto oxygen or hydroxyl groups.

Abstract: A method of inhibiting the corrosion of metals in contact with petroleum and petroleum fractions other than gasoline comprises contacting metal surfaces with a corrosion inhibiting amount of bis-amides resulting from reaction of one mole of amine with one equivalent of a dicarboxylic acid.

Abstract: This invention relates to quaternaries of alkynoxymethyl amines and uses thereof. These may be summarized by the following formulae: ##STR1## where R and R' are substituted groups such as alkyl, aryl, etc.; R''' is an acetylenic group; and X is an anion; and ##STR2## where R and R''' having the same meaning as in (1) and Z is a bridging group, preferably hydrocarbon such as alkylene, alkinylene, alkenylene, arylene, etc.

Abstract: A non-petroleum based metal corrosion inhibitor is provided. The inhibitor is a solution of compounds mixed together in particular proportions to form a non-petroleum based coating for preventing, or inhibiting, the oxidation of metals. The solution is prepared from aliphatic monobasic acids, aromatic acids, a lubricant, amines and water. A coating of the solution inhibits oxidation of metal surfaces, provides lubricity and need not be removed from a metal surface prior to painting. A non-petroleum based metal corrosion inhibitor without the lubricant is also provided.

Abstract: Polyether polyamines of the formula 1 ##STR1## in which R.sub.1 and R.sub.2 are identical or different and denote C.sub.8 -C.sub.30 -alkyl, -2-hydroxyalkyl or -alkenyl or C.sub.8 -C.sub.24 -alkoxypropyl, m and n are 2 or 3, R.sub.3 is hydrogen or methyl and the sum of o+p+q+r is an integer from 4 to 600, process for their manufacture and their use as dispersing agents, corrosion inhibitors, demulsifiers and acid retarders.

Abstract: Metal corrosion inhibitor comprising (a) benzoic acid and/or a benzoate, (b) nitrous acid and/or a nitrite, (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: This invention relates to the reaction products of(1) an alkenyl or alkyl succinic acid or the anhydride thereof; and(2) an alkylether diamine; and to the use thereof as a corrosion inhibitor.

Abstract: Hydrocarbyl-substituted phenylaspartates of N-primary-alkyl-alkylene diamines of the formulas: ##STR1## wherein R is a hydrocarbyl radical having from about 6 to 30 carbon atoms; R' is an alkyl or an alkenyl group having from 6 to 30 carbon atoms are provided together with a motor fuel composition containing at least one of the foregoing compounds.

Abstract: Alcohols may be inhibited against corrosion by addition thereto of an ether amine (R-O-R").sub.a -NH.sub.3-a typically C.sub.13 H.sub.27 -0-(CH.sub.2).sub.3 -NH.sub.2.

Abstract: Fluids based on phosphoric acid esters, or mixtures thereof, containing a corrosion and hydrolysis inhibitor, are useful fire resistant materials.

Abstract: Disclosed are selected poly(oxyalkylated) hydrazines of the formula: ##STR1## wherein R is selected from hydrogen, lower alkyl groups having from 1 to 4 carbon atoms, phenyl and mixtures thereof; and the sum of w, x, y, and z is from about 4 to about 20. These compounds are shown to be effective corrosion inhibitors for hydraulic fluids.

Abstract: Metal-working compositions (water-base, oil-base and oil-in-water emulsions) containing triazole and thiadiazole compounds are disclosed. These compositions prolong the working life of metal cutting and grinding tools containing tungsten carbide particles bonded together by nickel or cobalt. The oil-base coolant and lubricant comprises a mineral oil, a triazole or thiadiazole compound, and optionally, an extreme pressure lubricant, fats, rust preventives and mist suppressants. The aqueous base and oil-in-water emulsion metal-working compositions are prepared in the form of a liquid concentrate which subsequently is diluted with water to form the metal-working coolant or lubricant. The concentrate to be diluted and made into an aqueous coolant and lubricant comprises a triazole and thiadiazole compound, boric acid, an amine or mixture of amines, sodium gluconate and an aromatic or paraffinic carboxylic acid.

Abstract: This invention relates to quaternary polyaminoamides. The polyaminoamides are prepared by reacting acrylate-type compounds with polyamines as disclosed in U.S. Pat. No. 3,445,441. This invention also relates to uses for the quaternized polymer, particularly in the prevention of corrosion.

Abstract: This invention relates to polymerized aromatic nitrogen heterocyclic compounds as illustrated by compounds containing nitrogen heterocyclic rings and uses thereof.Polymerization is effected by treating said aromatic nitrogen heterocyclic compounds at elevated temperatures and pressures with catalytic amounts of alkyl halides.

Abstract: A method for inhibiting corrosion of metal by contacting the metal with a volatile alkyl ester of an amino acid. The invention also provides compositions containing these alkyl esters of amino acids as an active anti-corrosion inhibitor. These compositions may be fluid or semi-fluid compositions exemplified by oil-base compositions. The compositions may also be porous materials such as zeolite, silica gel, paper board, kraft paper, cloth, etc.

Abstract: An additive represented by the following formula: ##STR1## in which R is a hydrocarbon radical having from about 10 to 20 carbon atoms and x is a value from 1 to 3, and a corrosion inhibited and detergent fuel composition containing such additive.

Abstract: Mixtures of vicinal aminoalkanols of the formula ##STR1## wherein R.sub.1 and R.sub.2 are alkyl having from 1 to 21 carbon atoms and the sum of the carbon atoms in R.sub.1 +R.sub.2 is from 6 to 22, A is a member selected from the group consisting of alkylene having from 2 to 6 carbon atoms and methylalkylene having from 3 to 7 carbon atoms, y is an integer from 1 to 3, R.sub.4 and R.sub.5 are members selected from the group consisting of hydrogen, alkyl having from 1 to 4 carbon atoms and hydroxyalkyl having from 2 to 4 carbon atoms, and their salts with organic carboxylic acids, said mixtures having at least two different adjacent chain lengths of ##STR2## in the range of from 8 to 24 carbon atoms with the proviso that the vicinal substituents are distributed statistically; as well as their process of preparation and their application as corrosion inhibitors.

Abstract: Aqueous media having a dissolved content of a small amount, (less than 100 p.p.m.) of a mixture of aminoalkanols of the formula: ##STR1## wherein R.sub.1 and R.sub.2 each represent H and C.sub.1-18 unbranched alkyl substituents (the sum of the carbon atoms in R.sub.1 and R.sub.2 being 9 to 18), R.sub.3 and R.sub.4 each represent H,C.sub.1-4 alkyl and C.sub.2-4 hydroxyalkyl substituents, x represents 2 to 6, and y represents 0 to 1, the ##STR2## units in the aminoalkanols being of at least two different chain lengths in the range of 11 to 20 carbon atoms, possess decreased tendency to corrode iron-containing metals including steel. The mixtures are also useful in salt form. The efficiency of the mixture is improved by various additives which act synergistically therewith.

Abstract: A method for inhibiting corrosion of nonferrous metals in contact with circulating water comprising the steps of adding to circulating water in contact with non-ferrrous metals from 0.05 to 10 gm/m.sup.3 of at least one 3-amino-5-alkyl-1,2,4-triazole wherein said alkyl has from 2 to 8 carbon atoms and adjusting said water to a pH of from 6 to 10; as well as corrosion inhibiting compositions containing said 3-amino-5-alkyl-1,2,4-triazole.

Abstract: A method and composition are disclosed for treating corroding aqueous mediums to reduce the corrosion of metal surfaces exposed thereto. The treatment comprises water-soluble chromate and a copolymer of acrylic acid and hydroxy alkyl acrylate.

Abstract: The reaction products of glycidyl ethers, wherein the alkoxy portion contains from about 6 to about 20 carbon atoms, with alkylenediamines, N-alkyl alkylenediamines, and N-alkoxyalkyl alkylenediamines are effective carburetor detergents and reducedeposits on various components of internal combustion engines. An example is the reaction product of the glycidyl ether whose alkoxy group is a mixture of 12-14 carbon atom chains with N-tallow-1,3-propylenediamine.

Abstract: Combination deposit and rust control additives for internal combustion engines are provided which maintain cleanliness of intake systems without contributing to combustion chamber deposits and corrosion. The additives are salts of organic C.sub.3 -C.sub.30 monocarboxylic acids and hydrocarbyl poly(oxyalkylene)aminocarbamates comprising a hydrocarbyl-terminated poly(oxyalkylene) chain of 2-5 carbon oxyalkylene units bonded through an oxycarbonyl group to a nitrogen atom of a polyamine. Fuel and lube oil compositions containing these additive salts are provided for use in internal combustion engines.