US3392116A - Process of metal working and lubricant therefor - Google Patents

Process of metal working and lubricant therefor Download PDF

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US3392116A
US3392116A US571715A US57171566A US3392116A US 3392116 A US3392116 A US 3392116A US 571715 A US571715 A US 571715A US 57171566 A US57171566 A US 57171566A US 3392116 A US3392116 A US 3392116A
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annealing
amine
composition
lubricant
lubricating
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Hornus Jean Claude
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Cegedur GP
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Cegedur GP
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    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M1/00—Liquid compositions essentially based on mineral lubricating oils or fatty oils; Their use as lubricants
    • C10M1/08—Liquid compositions essentially based on mineral lubricating oils or fatty oils; Their use as lubricants with additives
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
    • C10M2201/02—Water
    • C—CHEMISTRY; METALLURGY
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    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
    • C10M2201/04—Elements
    • C10M2201/041—Carbon; Graphite; Carbon black
    • C—CHEMISTRY; METALLURGY
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    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
    • C10M2201/04—Elements
    • C10M2201/041—Carbon; Graphite; Carbon black
    • C10M2201/042—Carbon; Graphite; Carbon black halogenated, i.e. graphite fluoride
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    • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
    • C10M2201/06—Metal compounds
    • C10M2201/065—Sulfides; Selenides; Tellurides
    • C10M2201/066—Molybdenum sulfide
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    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
    • C10M2205/02—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers
    • C10M2205/026—Butene
    • C—CHEMISTRY; METALLURGY
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    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/02—Hydroxy compounds
    • C10M2207/021—Hydroxy compounds having hydroxy groups bound to acyclic or cycloaliphatic carbon atoms
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    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/02—Hydroxy compounds
    • C10M2207/021—Hydroxy compounds having hydroxy groups bound to acyclic or cycloaliphatic carbon atoms
    • C10M2207/022—Hydroxy compounds having hydroxy groups bound to acyclic or cycloaliphatic carbon atoms containing at least two hydroxy groups
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    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/10—Carboxylix acids; Neutral salts thereof
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    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/10—Carboxylix acids; Neutral salts thereof
    • C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
    • C10M2207/125—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids
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    • C10M2207/10—Carboxylix acids; Neutral salts thereof
    • C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
    • C10M2207/129—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of thirty or more carbon atoms
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    • C10M2207/10—Carboxylix acids; Neutral salts thereof
    • C10M2207/24—Epoxidised acids; Ester derivatives thereof
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    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/28—Esters
    • C10M2207/281—Esters of (cyclo)aliphatic monocarboxylic acids
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    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/28—Esters
    • C10M2207/282—Esters of (cyclo)aliphatic oolycarboxylic acids
    • C—CHEMISTRY; METALLURGY
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    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/28—Esters
    • C10M2207/283—Esters of polyhydroxy compounds
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
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    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/28—Esters
    • C10M2207/286—Esters of polymerised unsaturated acids
    • C—CHEMISTRY; METALLURGY
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    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/40—Fatty vegetable or animal oils
    • C—CHEMISTRY; METALLURGY
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    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/40—Fatty vegetable or animal oils
    • C10M2207/404—Fatty vegetable or animal oils obtained from genetically modified species
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant Compositions
    • C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
    • C10M2215/04—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms
    • C—CHEMISTRY; METALLURGY
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    • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant Compositions
    • C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
    • C10M2215/04—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms
    • C10M2215/044—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms having cycloaliphatic groups
    • C—CHEMISTRY; METALLURGY
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    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant Compositions
    • C10M2215/24—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant Compositions having hydrocarbon substituents containing thirty or more carbon atoms, e.g. nitrogen derivatives of substituted succinic acid
    • C10M2215/26—Amines
    • C—CHEMISTRY; METALLURGY
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    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2227/00—Organic non-macromolecular compounds containing atoms of elements not provided for in groups C10M2203/00, C10M2207/00, C10M2211/00, C10M2215/00, C10M2219/00 or C10M2223/00 as ingredients in lubricant compositions
    • C10M2227/08—Organic non-macromolecular compounds containing atoms of elements not provided for in groups C10M2203/00, C10M2207/00, C10M2211/00, C10M2215/00, C10M2219/00 or C10M2223/00 as ingredients in lubricant compositions having metal-to-carbon bonds
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    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/20—Metal working
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    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/20—Metal working
    • C10N2040/24—Metal working without essential removal of material, e.g. forming, gorging, drawing, pressing, stamping, rolling or extruding; Punching metal
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    • C10N2040/241—Manufacturing joint-less pipes
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    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/20—Metal working
    • C10N2040/242—Hot working
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    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/20—Metal working
    • C10N2040/243—Cold working
    • C—CHEMISTRY; METALLURGY
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    • C10N2040/244—Metal working of specific metals
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    • C10N2040/245—Soft metals, e.g. aluminum
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    • C10N2040/246—Iron or steel
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    • C10N2040/20—Metal working
    • C10N2040/244—Metal working of specific metals
    • C10N2040/247—Stainless steel
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    • C10N2050/00—Form in which the lubricant is applied to the material being lubricated
    • C10N2050/10—Form in which the lubricant is applied to the material being lubricated semi-solid; greasy

Definitions

  • ABSTRACT OF THE DISCLOSURE A lubricating composition suitable for metal working processes which comprises selected amines and their salts which are synergistic in combination with an alkynol and when used with a carrier substantially reduce annealing stains and disfigurement normally produced during metal working procedures.
  • This invention relates generally to a process for working metal and the provision of a lubricant therefor. More specifically, this invention relates to a process of metal working, particularly by cold working, wherein there is utilized a lubricating composition comprising certain amines, or salts thereof, in a novel synergistic combination.
  • the prior art lubricating compositions as used in metal working and particularly in cold working procedures have permitted fairly low deformations. Upon attempt to exceed these deformation limits, most frequently defects appear upon the surface of the metal being treated. These defects are, in the case of cold rolling, most commonly in the form of herringbone rolling marks. Moreover, when such deformed metal, as in the case of metal strips, is annealed after a rolling process, it has been found that there is a staining of the annealed surface caused by the cracking of the lubricant composition.
  • annealing stains are not corrosion stains but a superficial deposition of thermolytic, polymerized residues originating from the lubricating materials.
  • Those skilled in the art are quite aware that by the selection and an avoidance of certain materials (as in the case of the fatty acids and esters above cited) there may also be avoided the annealing stains but this expedient is necessarily an uneconomical one since such specifically designed formulations are also quite expensive and raise the cost of the cold working process both to the producer and the ultimate consumer.
  • annealing stains may often be avoided by a controlled and/or specialized annealing procedure, including flash annealing as well as the use of annealing furnaces having a controlled atmosphere generally 3,392,116 Patented July 9, 1968 of a reducing character.
  • flash annealing as well as the use of annealing furnaces having a controlled atmosphere generally 3,392,116 Patented July 9, 1968 of a reducing character.
  • annealing stains may often be avoided by a controlled and/or specialized annealing procedure, including flash annealing as well as the use of annealing furnaces having a controlled atmosphere generally 3,392,116 Patented July 9, 1968 of a reducing character.
  • such expensive special procedures are not of general utility.
  • prior art lubricating compositions of choice have failed, in the avoidance of annealing stains, when the worked metallic substrate is subsequently annealed by a simple thermal treatment in a conventional annealing furnace, obviously the most economical treatment possible in the art.
  • a process of working metal particularly by cold working, the step which includes contacting the metal being worked with a composition comprising an amine having the formula where R, is an aliphatic substituent having between 4 and 22 carbon atoms, each of R and R is selected from hydrogen and an aliphatic substituent having between 4 and 22 carbon atoms, R, is the anion of an aliphatic organic acid containing less than seven carbon atoms, and x is 0 or 1.
  • R is selected from the group consisting of myristyl, lauryl,
  • amines include myristyl amine acetate, lauryl amine acetate, myristyl amine propionate, myristyl amine butyrate, and tallow amine acetate, the latter being a mixed lauryl, myristyl, stearyl and oleyl compound derived from tallow fatty acids.
  • Metal working lubricating compositions including the amines of this invention, are of special utility in avoiding annealing stains in metal working processes including cold rolling and annealing thereafter. This avoidance of annealing staining is apparent even in compositions incorporating fatty acids, their esters and other derivatives, which may all be included in the composition of the present invention as carriers or diluents therefor or as complementary additives.
  • compositions of this invention further permit deformations which have not generally been heretofore permitted in the prior art without disfiguring the treated metallic surface as, for example, by the formation of herringbone rolling marks. While the discussion herein is principally directed to cold rolling, the compositions of the invention are useful in the other cold working procedures, including hammering, forging, stamping, die-stamping, etc.
  • the amine lubricating compounds of this invention are preferably used in lubricating compositions further comprising a carrier therefor.
  • the particular carrier which may be a simple or complex composition of liquid, pasty or solid characteristics may be selected by those skilled in the art according to the particular requirement of the process of this invention.
  • Exemplary of satisfactory carriers according to this invention are water, natural and/or synthetic hydrocarbons, alcohols and/or polyalcohols, their derivatives, etc., natural and/ or synthetic fats, soaps,
  • Hydrocarbon carriers such as kerosene and light oil are particularly desirable.
  • the kerosene is preferably deodorized, that is, containing little or no aromatic constituents.
  • a particular advantage of the present invention is in the avoidance of annealing stains in lubricating compositions which may comprise fatty acids, their esters and their other derivatives such as soaps.
  • the carrier is preferably present in an amount at least 50% by weight and the amine of this invention will be preferably be included in said composition in an amount not exceeding 8% by weight.
  • complementary additives may be selected from among alcohols or polyalcohols with straight or branched chains containing 8 to 18 carbon atoms; fatty esters derived from an organic acid containing 8 to 18 carbon atoms; organic hydroxy acids; polyisobutylenes, metalloido-organic compounds, particularly the art-recognized organic phosphorous compounds as, for example, tricresyl phosphate; solid state lamellar lubricants such as graphite, molybdenum sulphide; products known in other applications as porogenes a definition inclusive of appropriate blowing, poreforming, or related gas generating agents; etc.
  • the polyisobutylenes operate as porogenes since under the operating conditions of a conventional annealing process they depolymerize to yield the gaseous monomer from which they were formed.
  • other polymers possessed of lubricating properties and deploymerizable under conventional annealing conditions, to yield a substantially inert gaseous monomer, may otherwise be appropriate or convenient.
  • porogenes are particularly effective in the avoidance of annealing stainsby reason of their in situ depolymerization which serves both to destroy the integrity of solid state residues and simultaneously by gas generation cooperate in their removal.
  • porogenes are particularly advantageous in the explusion of traces of lubricant which remain captive between the tight turns of the coil prior ot reaching the cracking temperature. It has been observed that solid annealing residues, especially those derived from compositions according to the invention and further comprised of solid state lubricants, may be completely broken up into fine non-adhering powders by the simple inclusion of an appropriate porogene such as polyisobutylene.
  • the polyisobutylene should be selected so as to have a lubricating viscosity.
  • the preferred polyisobutylenes will be oily polymers consisting essentially of a polymerized isobutylenes.
  • the polyisobutylenes of choice are those having a very narrow, or minimal, distribution of molecular weight (of the individual polymeric molecular species contained in the polymer) about the mean molecular weight, which is to say that there is preferred a minimum deviation between the maximum molecular weights and the minimum molecular weights. While it is desirable that the polymer be of lubricating oil viscosity under the preferred operating conditions, it is not possible to give a maximum molecular weight limitation in example of the invention.
  • the mean molecular weights will desirably be not substantially greater than 5,000,'it is, nevertheless, possible, in accordance with the teachings of this invention, to utilize a polyisobutylene of lubricating viscosity and possessed of a higher molecular weight particularly in instances where there is as discussed hereinabove a minimal molecular weight distribution about the mean molecular weight.
  • Complementary additives which have been found to be particularly effective in the composition of this invention include, singly or in combination, aliphatic alcohols containing 8 to 18 carbon atoms and polyisobutylenes which in synergistic combination with the present composition have been found to confer valuable properties thereto as especially evident in the attainment of maximum deformation limits in cold rolling processes.
  • the complementary additive is selected from myristyl alcohol, lauryl alcohol, polyisobutylene, and combinations and mixtures thereof, the alcohols being included in a proportion by weight not exceeding 12% and polyisobutylene when present being in proportion by weight not exceeding 4%.
  • composition of this invention may be prepared according to the formulae below, wherein the carrier is preferably a hydrocarbon, such as light oil or kerosene:
  • Example 2 A lubricant of a conventional but more recent type
  • Example '3 A first lubricant according to this invention was prepared as follows:
  • Example 4 A second formula according to this invention was prepared as follows:
  • Example 5 Percent Decdorized kerosene 96 Lauryl alcohol 3 Myristyl alcohol 1 Cold rolling 200
  • Example 6 Percent Deodorized kerosene 96 Polyisobutylene 4 Cold rolling 140
  • the amine products and additives according to the invention can be introduced either as a solution, a dispersion, or an emulsion in the diluents or carriers the non-restrictive list of which is given above. According to requirements, there can also be added emulsifying agents, anti-oxidants, antiseptics, wetting agents, polyfunctional products, etc.
  • the amine and additive compounds being eliminated (for instance through distillation, thermolysis into lighter, more fluid or even gaseous compounds, etc.) at a temperature lower than that required for the heat treatment, the number of carbon atoms and the type of chain of such compounds may be selected by those skilled in the art according to the temperature required for treatment.
  • a metal working lubricant suitable particularly for metal cold-working comprising:
  • composition of claim 1 wherein said amine salt is selected from the group consisting of myristyl amine acetate, lauryl amine acetate, myristyl amine propionate, myristyl amine butyrate, and tallow amine acetate; and said alkanol is selected from the group consisting of myristyl alcohol, lauryl alcohol, and combinations thereof.
  • composition according to claim 3 wherein said lubricant is tricresyl phosphate of lubricating oil viscosity.
  • composition according to claim 3 wherein said lubricant is a solid state, lamellar lubricant.

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  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Lubricants (AREA)
US571715A 1963-02-28 1966-08-11 Process of metal working and lubricant therefor Expired - Lifetime US3392116A (en)

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FR926356A FR1357798A (fr) 1963-02-28 1963-02-28 Lubrifiants spéciaux pour travail des métaux

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4587025A (en) * 1982-06-30 1986-05-06 Mobil Oil Corporation Zwitterionic quaternary ammonium carboxylates, their metal salts and lubricants containing same
US4589992A (en) * 1983-10-19 1986-05-20 Ciba-Geigy Corporation New salts useful as corrosion inhibitors

Citations (8)

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US2228325A (en) * 1937-07-27 1941-01-14 Sharples Solvents Corp Lubricant
GB705194A (en) * 1950-06-24 1954-03-10 Standard Oil Dev Co Improvements in or relating to an emulsifiable lubricating composition suitable as ametal working lubricant
GB750340A (en) * 1953-08-20 1956-06-13 Exxon Research Engineering Co Improvements in or relating to lubricating compositions and hydraulic fluids
US2833721A (en) * 1955-05-09 1958-05-06 American Oil Co Lubricant for recycle gas compressor employed in hydroforming systems
US2842837A (en) * 1956-04-17 1958-07-15 United States Steel Corp Method of working wire and a lubricant therefor
US2909489A (en) * 1956-06-07 1959-10-20 Monsanto Chemicals Non-foaming functional fluids
GB884442A (en) * 1959-07-30 1961-12-13 Gen Mills Inc Synthetic compositions
US3075026A (en) * 1958-05-13 1963-01-22 Phillips Petroleum Co Polymerization of propylene or butenes with vci4 catalyst to form liquid polymers

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DD2291A (en(2012)) *
US2758086A (en) * 1952-06-28 1956-08-07 California Research Corp Lubricant composition
US2779740A (en) * 1953-11-25 1957-01-29 Tidewater Oil Company Mineral oil lubricating compositions
GB798601A (en) * 1955-03-25 1958-07-23 Wakefield & Co Ltd C C Improvements in or relating to lubricating oil compositions
DE1038688B (de) * 1956-06-08 1958-09-11 Esso A G Zylinderschmiermittel zum Schmieren von mit Diesel- oder Heizoelen mit hohem Schwefelgehalt betriebenen Grossdieselmotoren

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Publication number Priority date Publication date Assignee Title
US2228325A (en) * 1937-07-27 1941-01-14 Sharples Solvents Corp Lubricant
GB705194A (en) * 1950-06-24 1954-03-10 Standard Oil Dev Co Improvements in or relating to an emulsifiable lubricating composition suitable as ametal working lubricant
GB750340A (en) * 1953-08-20 1956-06-13 Exxon Research Engineering Co Improvements in or relating to lubricating compositions and hydraulic fluids
US2833721A (en) * 1955-05-09 1958-05-06 American Oil Co Lubricant for recycle gas compressor employed in hydroforming systems
US2842837A (en) * 1956-04-17 1958-07-15 United States Steel Corp Method of working wire and a lubricant therefor
US2909489A (en) * 1956-06-07 1959-10-20 Monsanto Chemicals Non-foaming functional fluids
US3075026A (en) * 1958-05-13 1963-01-22 Phillips Petroleum Co Polymerization of propylene or butenes with vci4 catalyst to form liquid polymers
GB884442A (en) * 1959-07-30 1961-12-13 Gen Mills Inc Synthetic compositions

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4587025A (en) * 1982-06-30 1986-05-06 Mobil Oil Corporation Zwitterionic quaternary ammonium carboxylates, their metal salts and lubricants containing same
US4589992A (en) * 1983-10-19 1986-05-20 Ciba-Geigy Corporation New salts useful as corrosion inhibitors

Also Published As

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LU45137A1 (en(2012)) 1965-06-30
FR1357798A (fr) 1964-04-10
DE1594369B1 (de) 1970-10-15
NL143984B (nl) 1974-11-15
BE641844A (en(2012)) 1964-06-29
NL302990A (en(2012))

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