Patent GB-643034-A (GB)
Title: Corrosion-preventive compositions
IPC: C09D5/08
Filed: 1947-08-05
Abstract: Corrosion-preventive lubricants comprise a polymer or copolymer of one or more alkylene oxides and/or alkylene glycols or derivatives thereof and 0.5 to 6.0 per cent, of an acidic organic material capable of forming water-insoluble metallic soaps. Preferred acidic materials are water-insoluble aliphatic and aromatic carboxylic acids, partial esters of polyvalent acids, organic sulphonic acids and organic resinous materials containing acidic groups.  Specified are valeric, caproic, enanthylic, caprylic, pelargonic, capric, undecylic, lauric, tridecoic, myristic, pentadecanoic, palmitic, margaric, stearic, carnaubic, cerotic, psyllic, a ,b -dimethacrylic, crotonic, isocrotonic, vinylacetic, tiglic, angelic, senecioic, hexenic, teracrylic, hypogeic, oleic, elaidic, erucic, behenic, sorbic, linoleic, linolenic, propiolic, 2-pentynoic, amylpropiolic, palmitolic, stearolic, malonic, succinic, glutaric, adipic, pimelic, sebacic, maleic, fumaric, glutaconic, propylidenemalonic, allylsuccinic, cetylmalonic, and butenedoic acids and acids derived from linseed, rapeseed, cottonseed, soy bean, corn, rice, sesame and mustardseed oils.  Hydroxy, ketonic, amino, sulphonic, thiocarbonic and resin acids may also be used.  Specified compounds from which the polymers and copolymers are derived include ethylene, propylene, 1,2- and 2,3-butylene, isobutylene, tetramethylethylene, methyl phenyl ethylene, cyclohexene, methyl cyclohexene and 1,2-cetene oxides, epichloro- and epibromo-hydrins, glycidol, 1,2 - epoxy - butanol - 2, and ethylene, propylene, trimethylene, tetramethylene, pentamethylene, hexamethylene, diethylene, triethylene and tetraethylene glycols and their derivatives.  If desired, the polymers may be partially or completely etherified or esterified. The compositions may also contain oxidation inhibitors, pour-point depressants, extreme-pressure agents, anti-wear compounds, detergents and sludge - preventing compounds.  Examples describe a monomethyl polymer of propylene oxide and (1) and (2) oleic acid; (3) sulphurized oleic acid; (4) lauric acid; (5) and (6) a mixture of mono- and di-lauryl phosphates; and (7) a mixture of octadecenyl succinic acids.ALSO:Corrosion-preventive lubricants comprise a polymer or copolymer of one or more alkylene oxides and/or alkylene glycols or derivatives thereof (see Group IV (a)), and 0.5 to 6.0 per cent of an acidic organic material capable of forming water-insoluble metallic soaps.  Preferred acidic materials are water-insoluble aliphatic and aromatic carboxylic acids, partial esters of polyvalent acids, organic sulphonic acids and organic resinous materials containing acidic groups.  Specified are valeric, caproic, enanthylic, caprylic, pelargonic, capric, undecylic, lauric, tridecoic, myristic, pentadecanoic, palmitic, margaric, stearic, carnaubic, cerotic, psyllic, a ,b -dimethacrylic, crotonic, isocrotonic, vinylacetic, tiglic, angelic, senecioic, hexenic, teracrylic, hypogeic, oleic, elaidic, erucic, behenic, sorbic, linoleic, linolenic, propiolic, 2-pentynoic, amylpropiolic, palmitolic, stearolic, malonic, succinic, glutaric, adipic, pimelic, sebacic, maleic, fumaric, glutaconic, propylidenemalonic, allylsuccinic, cetylmalonic, and butenedioic acids and acids derived from linseed, rapeseed, cottonseed, soybean, corn, rice, sesame and mustardseed oils.  Hydroxy, ketonic, amino, sulphonic, thiocarbonic and resin acids may also be used.  The compositions may also contain oxidation inhibitors, pour-point depressants, extreme-pressure agents, anti-wear compounds, detergents and sludge-preventing compounds.  Examples describe a monomethyl polymer of propylene oxide and (1) and (2) oleic, (3) sulphurised oleic, (4) lauric, (5) and (6) a mixture of mono- and di-lauryl phosphates, and (7) a mixture of octadecenyl succinic acids.