Patent GB-730733-A (GB)
Title: Improvements in or relating to metal working lubricating compositions
IPC: C10M173/00
Filed: 1953-02-13
Abstract: A composition suitable as a metal-working lubricant comprises an oil-in-water emulsion having incorporated therein a homopolymer of a vinyl halide or a vinylidene halide, a copolymer of a vinyl halide with a vinylidene halide or a copolymer of one or both of these halides with a polymerizable unsaturated organic compound in which the molar proportion of the halides is at least 50 per cent or these polymers further treated by halogenation, sulphurization and/or phosphorization and optionally emulsifiers, stabilizers, extreme pressure agents, anti-oxidants, anti-corrosives, detergents, anti-foaming agents and/or preservatives.  Specified polymers are polyvinyl chloride, polyvinyl fluoride, polyvinylidene chloride, copolymers of vinyl chloride with allyl chloride, chlorostyrene, allyl amine, vinylidene chloride, acrylonitrile, methyl methacrylate, isobutylene, maleic acid, vinyl acetate, vinyl benzoate, diallyl ether, vinyl pyridine or vinyl pyrrole, further halogenated polyvinyl chloride, sulphurized polyvinyl chloride and polyvinyl chloride treated with phosphorus pentasulphide.  The oil may be a mineral oil, a vegetable or animal oil or fat, or a mixture.  Oils mentioned are spindle, rape seed, cotton seed, castor, fish, sulphated fish, sperm and palm oils, wool grease, tallow fat, lard, glycerol mono-oleate, dioctyl sebacate, and polypropylene glycols.  Suitable emulsifiers are the alkali metal salts of oil-soluble petroleum sulphonic acid, sulphonated castor oil, alkali metal salts of alkylphenol sulphonic acids, naphthenic acid soaps, tall oil soaps, rosin soaps, triethanolamine oleate or linolate, alkali metal sulphates of higher aliphatic alcohols, condensation products of ethylene oxide and oleic acid, or alkylated phenols.  Specified stabilizers are casein, joiners' glue, water glass and bentonite.  The pressure agent may be chlorinated solid paraffin wax, sulphurized oleic acid, sulphurized terpenes or sulphur.  The anti-oxidant may be 2 : 4 - dimethyl - 6 - t - butylphenol, 2 : 6 - di - t-butyl - 4 - methyl phenol, N,N1-dibutylphenylene diamine, phenyl alpha- or beta-naphthylamine, sulphurized alkenes, dialkyl disulphides, or dibenzyl disulphide. Anti-corrosives mentioned are higher alkyl succinic acids, nitrites and chromates.  The detergent may be an alkali metal salt of an alkyl sulphonic acid or an alkali metal alkyl phosphate.  Anti-foaming agents may be palmitic or oleic acids, ozocerite, montan wax or polymeric silicones.  Suitable preservatives are formaldehyde, halogenated phenols, e.g. 2 : 4 : 5 - trichlorophenol, and resin oil.ALSO:A metal-working lubricant comprises an oil-in-water emulsion having incorporated therein a homopolymer of a vinyl halide or a vinylidene halide, a copolymer of a vinyl halide with a vinylidene halide, or a copolymer of one or both of these halides with another monomer in which the molar proportion of the halides is at least 50 per cent or these polymers further treated by halogenation, sulphurization and/or phosphorization (see Group IV (a)), and optionally emulsifiers, stabilizers, extreme pressure agents, anti-oxidants, anti-corrosives, detergents, anti-foaming agents and/or preservatives.  The oil may be either a mineral oil, or a vegetable or animal oil or fat, or a mixture.  Oils mentioned are spindle, rape seed, cotton seed, castor, fish, sulphated fish, sperm and palm oils, wool grease, tallow fat, lard, glycerol monooleate, dioctyl sebacate and polypropylene glycols.  Suitable emulsifiers are the alkali metal salts of oil-soluble petroleum sulphonic acid, sulphonated castor oil, alkali metal salts of alkylphenol sulphonic acids, naphthenic acid soaps, tall oil soaps, rosin soaps, triethanolamine oleate or linolate, alkali metal sulphates of higher aliphatic alcohols; or condensation products of ethylene oxide and oleic acid, or alkylated phenols.  Specified stabilizers are casein, joiner's glue, water glass and bentonite.  The pressure agent may be chlorinated paraffin wax, sulphurized oleic acid, sulphurized terpenes, or sulphur.  The antioxidant may be 2 : 4 - dimethyl 6 - t - butylphenol, 2 : 6 - di - t-butyl 4-methyl phenol, N,N1-dibutylphenylene diamine, phenyl alpha- or beta-naphthylamine, sulphurized alkenes, dialkyl disulphides or dibenzyl disulphide. Anti-corrosives mentioned are higher alkyl succinic acids, nitrites and chromates.  The detergent may be an alkali metal salt of an alkyl sulphonic acid or an alkali metal alkyl phosphate.  Anti-foaming agents may be palmitic or oleic acids, ozocerite, montan wax, or polymeric silicones.  Suitable preservatives are formaldehyde, halogenated phenols, e.g. 2 : 4 : 5-trichlorophenol, and resin oil.