Classifications

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  • 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
  • C10M173/00—Lubricating compositions containing more than 10% water
  • C10M173/02—Lubricating compositions containing more than 10% water not containing mineral or fatty oils
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  • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
  • C10M129/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen
  • C10M129/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen having a carbon chain of less than 30 atoms
  • C10M129/04—Hydroxy compounds
  • C10M129/06—Hydroxy compounds having hydroxy groups bound to acyclic or cycloaliphatic carbon atoms
  • C10M129/08—Hydroxy compounds having hydroxy groups bound to acyclic or cycloaliphatic carbon atoms containing at least 2 hydroxy groups
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  • C10M129/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen
  • C10M129/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen having a carbon chain of less than 30 atoms
  • C10M129/26—Carboxylic acids; Salts thereof
  • C10M129/28—Carboxylic acids; Salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
  • C10M129/38—Carboxylic acids; Salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having 8 or more carbon atoms
  • C10M129/40—Carboxylic acids; Salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having 8 or more carbon atoms monocarboxylic
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  • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
  • C10M129/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen
  • C10M129/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing oxygen having a carbon chain of less than 30 atoms
  • C10M129/26—Carboxylic acids; Salts thereof
  • C10M129/28—Carboxylic acids; Salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
  • C10M129/38—Carboxylic acids; Salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having 8 or more carbon atoms
  • C10M129/42—Carboxylic acids; Salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having 8 or more carbon atoms polycarboxylic
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  • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
  • C10M133/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen
  • C10M133/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen having a carbon chain of less than 30 atoms
  • C10M133/04—Amines, e.g. polyalkylene polyamines; Quaternary amines
  • C10M133/06—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms
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  • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
  • C10M133/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen
  • C10M133/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen having a carbon chain of less than 30 atoms
  • C10M133/04—Amines, e.g. polyalkylene polyamines; Quaternary amines
  • C10M133/06—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms
  • C10M133/08—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms containing hydroxy groups
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  • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
  • C10M133/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen
  • C10M133/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen having a carbon chain of less than 30 atoms
  • C10M133/16—Amides; Imides
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  • C10M137/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing phosphorus
  • C10M137/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing phosphorus having no phosphorus-to-carbon bond
  • C10M137/04—Phosphate esters
  • C10M137/08—Ammonium or amine salts
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  • C10M145/00—Lubricating compositions characterised by the additive being a macromolecular compound containing oxygen
  • C10M145/18—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
  • C10M145/24—Polyethers
  • C10M145/26—Polyoxyalkylenes
  • C10M145/38—Polyoxyalkylenes esterified
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  • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
  • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
  • C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
  • C23F11/08—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids
  • C23F11/10—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids using organic inhibitors
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  • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
  • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
  • C23G5/00—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents
  • C23G5/06—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents using emulsions
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  • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
  • C10M2201/02—Water
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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
  • C10M2207/02—Hydroxy compounds
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  • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
  • C10M2207/04—Ethers; Acetals; Ortho-esters; Ortho-carbonates
  • C10M2207/046—Hydroxy ethers
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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
  • C10M2207/121—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of seven or less carbon atoms
  • C10M2207/123—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of seven or less carbon atoms polycarboxylic
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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
  • C10M2207/125—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
  • C10M2207/126—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 monocarboxylic
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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
  • C10M2207/125—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
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  • C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
  • C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
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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
  • C10M2217/00—Organic macromolecular compounds containing nitrogen as ingredients in lubricant compositions
  • C10M2217/04—Macromolecular compounds from nitrogen-containing monomers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
  • C10M2217/046—Polyamines, i.e. macromoleculars obtained by condensation of more than eleven amine monomers
• • 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
  • C10M2217/00—Organic macromolecular compounds containing nitrogen as ingredients in lubricant compositions
  • C10M2217/06—Macromolecular compounds obtained by functionalisation op polymers with a nitrogen containing compound
• • 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
  • C10M2223/00—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
  • C10M2223/02—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
  • C10M2223/04—Phosphate esters
• • 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
  • C10M2223/00—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
  • C10M2223/02—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
  • C10M2223/04—Phosphate esters
  • C10M2223/042—Metal salts thereof
• • 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
  • C10M2223/00—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
  • C10M2223/02—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
  • C10M2223/04—Phosphate esters
  • C10M2223/043—Ammonium or amine salts thereof
• • 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
  • C10M2225/00—Organic macromolecular compounds containing phosphorus as ingredients in lubricant compositions
• • 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
  • C10M2225/00—Organic macromolecular compounds containing phosphorus as ingredients in lubricant compositions
  • C10M2225/02—Macromolecular compounds from phosphorus-containg monomers, obtained by reactions involving only carbon-to-carbon unsaturated bonds
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • 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
• • C—CHEMISTRY; METALLURGY
  • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
  • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
  • C10N2050/00—Form in which the lubricant is applied to the material being lubricated
  • C10N2050/01—Emulsions, colloids, or micelles

Definitions

• the present invention relates to water-dispersible compositions having a detergent and/or protective action on steel sheet, and a process for their preparation.
• the present invention relates to water-dispersible compositions that, when used in a diluted (3-5%) state, have a (temporary) detergent and protective action, and, when used at higher concentration ( ⁇ 40%), have a longer-lasting protective action, in a similar way as the so-called slushing oils used up to now, and a process for their preparation.
• the die-forming steel-sheets are sheets that are obtained from low-carbon steel (0.15%, extra-mild steel; 0.15 - 0.30%, mild steel); the steel grades that are employed can be of the rimmed type, semi-killed type, or of the killed type.
• Said steel sheets are obtained by cold rolling. After this process, the steel sheet is subjected to annealing and then to "temper milling" (milling in a mill that usually exhibits a reversible quarter arrangement). The purpose of this treatment is to rise the steel sheet yield point by means of a slight thickness reduction, thus imparting to the steel sheet good forming characteristics.
• the steel sheet strip from the annealing furnace is to be cleaned of "metal fines" formed during the rolling step and/or of the carbonaceous particles from cracking of the lubricating agents employed in the cold rolling process.
• This cleaning operation is usually performed by spraying a water solution, said solution containing surface active agents, rust preventive additives (such as, for example, boric amide, boron, nitrites, benzoates, carbonates, sulphonamides, and so on) and small amounts of anionic compounds, such as soaps, amine salts, and so on.
• the application site for these detergent compositions is at the separation line between the back-­up rolls and the working rolls and/or at the separation line between the working roll and the strip.
• Said cleaning solution should not stain the steel sheet (that is they should be inert towards it), while preventing the surface of the steel sheet from being oxidized within the time span elapsing between their application and the following application of the protective agent (this is the reason why these detergent compositions also contain rust preventing additives as summarily stated above).
• Said detergent compositions should also provide a lubricating action to remove wear of working rolls and preserving for a longer time the roughness of the rolls themselves.
• the detergent composition must have dried, before the protective agent is applied, for the protective composition, which is an oil-or wax-base composition, to be easily applied, as well as to prevent the water contained in the detergent composition from giving rise to a rust layer under the oil/wax layer of the protective agent.
• the protective composition which is an oil-or wax-base composition
• the known previous protective compositions usually consist of water-dispersions of waxes, or they are based on paraffinic and/or naphthenic petroleum hydrocarbons.
• dispersant amides such as e.g. petroleum sulphonates, said sulphonates corresponding to the formula R SO3X, wherein R is an alkyl-aryl group with 20 to 30 carbon atoms, and X is usually a sodium atom, or an amine or alkanolamine group
• R SO3X wherein R is an alkyl-aryl group with 20 to 30 carbon atoms, and X is usually a sodium atom, or an amine or alkanolamine group
• the main function of said protective compositions is to prevent the steel strip from being oxidized within the time period, that can even last several months, between the manufacture of steel sheets and their final use, e.g. in the car industry or in the electrical household appliance industry.
• the detergent compositions e.g. are aqueous, they are little, if at all, compatible with the wax-base or oil-base protective compositions. Therefore, if the detergent composition is not thoroughly dried before the protective composition is applied there is a serious risk that the residual water causes the steel sheet to be rust - stained, notwithstanding the presence of the protective agent.
• the known protective compositions exhibit various draw-backs: - they are not easily distributed, especially the oil-based compositions, onto the steel strip surface, especially at room temperature, thus making it necessary to apply heat; - the conventional protective compositions tend to cause the formation of deposits onto the distribution rolls and to clog the nozzles of the devices that are used for the application of the same, with the consequence that further maintenance work is needed; - the protective film formed by the known protective compositions is sometimes non-homogeneous or non-continuous; - the protective agents that are commercially available can form stable aereosols by spray application; - the known protective agents are sometimes not completely inert towards the steel surface, thus causing stains on it; - if the steel surface is handled shortly after said oil- or wax-based protective agents have been ap­plied, the protective agent becomes partly removed; - when several steel plates are stacked, protective oil accumulates along the borders due to pressure or gravity; moreover when plate reams are stacked onto joists, central pockets
• compositions of the present invention consist substantially of four components: 1) base A, 2) base B, 3) dispersant, 4) co-solvent.
• Base A serves mainly to impart detergency to the composition of the present invention when this is employed in the diluted state (concentration 3-5%); said base can consist of a mixture of different bases A.
• Base B serves mainly to impart film-forming properties to the composition of the present invention when this is used in a concentrated state ( ⁇ 40%); also base B can consist of a mixture of different bases B.
• the dispersant is water.
• the cosolvent consists of one or a plurality of glycols.
• base A is obtained by reacting a water-dispersible acid reagent Aa with a water-soluble basic reagent Ab; the product of said reaction can be a salt, a soap and/or a condensation product.
• the reaction conditions normally promote the condensation, but the quality of the final product will not be very different if, instead of a condensation, a salt forming reaction between Aa and Ab occurs.
• any poly­carboxylic and / or monocarboxylic acid having more than 8 carbon atoms can be used as the acid reagent Aa to be used for the preparation of base A, provided it is water-dispersible.
• the acidic reagent Aa can also be a phosphoric ester that is obtained by reacting phosphoric anhydride (P2O5) with a fatty alcohol having at least 8 carbon atoms in the molecule, or with a mono­substituted and/or disubstituted phenol compound, oxo-­alcohol compound, said compounds being condensed or non-­condensed with ethylene oxide and / or ethylene oxide / propylene oxide mixtures.
• P2O5 phosphoric anhydride
• P2O5 phosphoric anhydride
• a fatty alcohol having at least 8 carbon atoms in the molecule or with a mono­substituted and/or disubstituted phenol compound, oxo-­alco
• oxo-alcohol stands for an alcohol prepared by means of the oxo-process from a polyolefine having at least 7 carbon atoms. Said alcohols are obtained by adding one mole of carbon oxide and two moles of hydrogen to polyolefins, such as tri-, tetra-, penta-propylene, di-, tri-, tetra-isobutylene, propylene-isobutylene, tributene, and so on, with a Fischer-Tropsch catalyst (e.g. cobalt carbonyls, Raney cobalt): see for example The Merck Index 10th edition, ONR-65 and references therein.
• a Fischer-Tropsch catalyst e.g. cobalt carbonyls, Raney cobalt
• R1-(OCH2CHR2) x -OH (I) wherein R1 is an alkylene or aralkyl group having 8 to 24 carbon atoms, and R2 is a hydrogen atom or a methyl group, x is an integer of from 0 to 20, included, are especially preferred for the preparation of the phosphoric esters useful for the present invention.
• esters according to the above-mentioned US patent can contain in their molecule non-esterified phosphoric groups that impart acid properties the reto; in this case they will be available for further reaction with any water-soluble, organic and/or inorganic base.
• the arylalkyl-­ethoxyphosphate - type esters commercially available under the trade mark GAFEN, (GAF Corporation, New York, N.Y. ) or the organic, water-soluble polycarboxylic acid with an oleic acid equivalent of 0.83, manufactured by Ciba-Geigy and sold under trade mark REOCOR 190, or mixtures thereof are presently preferred.
• an organic basic compound can be used, such as an amine, a diamine and/or a polyamide, having 1 to 24 carbon atoms in their molecule and corresponding to the following formula: H2N-(RNH) n -H (II) wherein R stands for an alkylene group having 1 to 4 carbon atoms and n is an integer of ⁇ 6;
• the basic reagent Ab will consist of a propylene diamine having a primary amine group and a secondary amine group, and corresponding to formula II, with or without oxyethylene groups.
• R stands for the alkyl residues of the tallow fatty acids, in the following proportions: C12:1%; C14:4%; C16:31%; C18:64%; C20:trace amounts is sold by AKZO CHEMIE Italia S.p.A., Via Vismara 80, 20020 Arese, under the trade name ETHODUOMEEN T 13.
• the mixture of diethanolamine and a diamine of formula (IIIa), that is ETHODUOMEEN T 13 is presently preferred.
• alkanolamines preferably the dialkanolamines of the formula HN(ROH)2 (IV) wherein R is an aliphatic residue containing 2 to 6 alkylene groups
• R is an aliphatic residue containing 2 to 6 alkylene groups
• the alkylamines, the alkanolamines and the low and / or high molecular weight organic acids can give rise to different compounds. If the reaction is carried out at room temperature, merely a neutralization and /or saponification will occur.
• the reaction at 140-160°C yields a dialkanolamide that, contrary to the product obtained with a molar ratio of 1:1, is water soluble.
• This product is actually a complex mixture comprising N-­alkylolamide, amino-ester, amino-diester, amido-ester, amido-diester, free dialkanolamine and a major amount of dialkanolamide.
• the water-solubility is mainly due to the free alkanolamine.
• the alkanol­amine/carboxylic acid molar ratio is 1.4:1
• a product is obtained that is dispersible instead of being soluble.
• the water contains glycols (co-solvents) or dialkanolamine the dispersion is solubilized.
• base B is mainly a product or a mixture of products of condensation or salification possibly containing free components resulting from the reaction at a temperature of from 150°C to 190°C of a mono-carboxylic acid with 8-­18 carbon atoms (reagent Ba), in mixture with a dicarboxylic acid having a maximum of 36 carbon atoms (reagent Bb), with an alkanolamine, preferably a dialkanolamine (reagent Bc) in a molar ratio of Bc: (Ba+Bb) ⁇ 1.5:1.
• the reagent Ba according to the present invention preferably consists of a monocarboxylic aliphatic acid containing 10 to 20 carbon atoms, or a mixture of pre­ponderantly unsaturated fatty acids and 2-3% of rosin acids, said rosid acids consisting of abietic and neo-­abietic acid, such as, e.g., the tall oil fatty acid.
• the reagent Bb useful for preparing base B according to the present invention is preferably a dimer acid, said dimer acid being obtained from the polymerization of an unsaturated fatty acid with 18 carbon atoms, containing about 80-97% of dimer acid, about 20-3% of trimer acid and a maximum of about 1% of monomer acid.
• the reagent Bb tipically consists of a dimer acid containing about 95% of dioleic acid, about 4% of trimer acid and about 1% of monomer acid. Said acid has an acid number of about 191, an equivalent weight of about 293 and a molecolar weight of about 365. Dimer acids exhibiting said features are commercially available e.g. under the trade name PRIPOL, UNICHEMA International.
• the reagent Bb according to the present invention can also be a hydrogenated dimer acid having an acid number of about 193, an equivalent weight of about 290 and an iodine number of about 30.
• the reagent Bc is preferably a dialkanolamine , said dialkanolamine being obtained from a mixture of diethanolamine and diisopropylamine in the molar ratio of 2:1.
• the co-solvent that can be used for the preparation of the composition of the present invention can be a monoalkyl ether of an alkyleneglycol of the formula R1O[CH2C(R2)OH] y -OH (VI) wherein R1 stands for 1 to 4 alkyl groups R2 stands for an H atom or a methyl group and y is an integer of from 1 to 3.
• Preferred glycol ethers are, e.g. 2-ethyl-1,3-­hexanediol and ethylene glycol in a molar ratio of 3:1.
• the present invention is practiced using commercially available materials that consist of a mixture of compounds, not a single compound. Therefore, even though in the course of the present disclosure reference is made to single compounds, they are actually, in most cases, mixtures of compounds, said mixtures containing the main compound in a preponderant amount, together with other compounds.
• the fatty acid actually consists of a mixture of acids, such as, e.g., the tall oil acids.
• the mono-­alkanolamine can actually contain various monoalkanol­amines and dialkanolamines. Same can be said of alcohols.
• reaction products obtained from said reagent will obviously consist of more or less complexe mixture, as illustrated herein above for the alkanolamines.
• base A has the main purpose of imparting to the composition of the present invention detergency when used in a diluted state (concentration of 3-5%).
• the reflux condenser with trap is connected, and the temperature is raised to 150°C - 160°C.
• the azeotrope is refluxed while maintaining the temperature for 14 hours or until 14 ml of water is collected. This means that also a small amount of ester has been formed besides the diethanolamide and, therefore, the base will exhibit also a film-forming property, that however will not affect its detergent property.
• the diethanolamine can be substituted with the same amount of diisopropylamine, but this involves a partial loss of the latter through distillation.
• the end product has a weight of about 132 g and a clear appearance, viscous consistency and amber colour; it is completely soluble at any ratio in water of 50°HF (french hardeness degrees).
• Base A1 has the following initial percent composi­tion: Aa: 37.2 g (GAFEN LM 400 + REOCOR 190) Ab: 52.9 g (diethanolamine + ETHODUOMEEN T 13)
• the thus formed soap is a free flowing, pale straw-colored mass and is completely water-dispersible in any ratio; it is rather sensitive to water hardeness.
• the percent composition of the starting materials for base A2 is: Aa: 39.0 g (GAFEN LE 500 + REOCOR 190) Ab: 57.5 g (diethanolamine + ETHODUOMEEN T 13) Water: 3.5 g
• the protective power passes 12 cycles in the climatic chamber.
• a 1% solution in distilled water provides an average of 18 seconds at the Draves test.
• a two-liter glass reactor provided with at least 3 necks and equipped with vertex thermometer, reflux condenser, and magnetic bar stirrer is used, said reflux condenser being connectable to a vacuum pump and provided with a trap for collecting the water evolving from the reaction.
• reaction mass When 32 ml of water has been collected, the reaction mass will have the desired dialkanolamide/ester ratio.
• the reflux condenser is removed and xylene is distilled off at 1 mmHg.
• the operation can also be carried out in a rotary evaporator connected to a vacuum pump.
• a 10% solution in distilled water passes a Falex load of 2500 pounds. It causes no corrosion on a mild steel plate after 10 cycles in the climatic chamber.
• base A in order to obtain a water-dispersible composition of good quality it is necessary that base A exhibits, in a proper amount, the following characteristics (listed in decreasing order of importance): As) Degreasing and moistening-soaking properties; Af) Film forming, polar and protecting properties; Al) Lubricating properties.
• Base A2 is the best.
• Base A3 is a good alternative, especially if the water-­dispersible composition needs to have a good lubricating power (in the case of great elongations at the temper mill).
• base B is preponderantly used to confer film forming power to the composition of the present invention, when it is used in a concentrated state (conc. ⁇ 40%).
• base B1 When 52 ml reaction water has been collected in the trap, base B1 can be considered to have achieved the desired composition.
• the reflux condenser is removed and vacuum is connected then cooling to 120°C, or the reaction mixture is poured into a rotary evaporator connected to the vacuum pump for removing the azeotrope.
• the mixture is allowed to cool to 60 ⁇ 50°C.
• a sample is then taken for the determination of the acid number, that must be ⁇ 2 mg KOH/g.
• the viscous compound thus obtained is poured off at room temperature.
• the weight of the compound that is poured off is 780 g.
• a 10% dispersion in distilled water provides the following results: - maximum Falex load passed: 2950 pound; - Draves test, average value (1% average solution): 28 seconds. - protective power: 14 cycles in the climatic chamber.
• the condensation is continued at 160 ⁇ 5°C until 68 ml of reaction water is collected.
• the weight of poured off product is 868 g.
• the product does not flow at room temperature because it sets to a non-clear, slightly thixotropic mass.
• PRIPOL 1022 is added to ease the cold-water dispersibility.
• the product is much more readily dispersed in hot water, indipendently of whether it is soft or hard water.
• the pH of the dispersion is about 9.
• a 10 % dispersion in distilled water at 60°C has provided the following results: - maximum Falex load passed: 3350 pounds; - protective power: 22 cycles in the climatic chamber.
• Draves Test 1% dispersion in distilled water: non determinable.
• the following reagents are charged into the reactor: 250 g PRIPOL 1022, 250 g talloil fatty acids, 253.3 g diethanolamine, 126.7 g diisopropanolamine.
• the condensation is continued at 160 ⁇ 5°C until 60 ml of reaction water is collected.
• a viscous product is obtained, said product being flowable at room temperature and having an acid number of ⁇ 1 mg KOH/g.
• the weight of the obtained product is 877 g.
• Base B3 is not readily dispersible into a water room temperature, irrespective of its hardness.
• a 10% water dispersion of base B3 in distilled water at 60°C has provided the following results: - maximum Falex load passed: 3050 pounds; - protective power: 22 cycles in the climatic chamber.
• the Draves test on a 1% dispersion in distilled water is not evaluable.
• the original percent composition for base B3 is as follows: Bb: 28.42 (PRIPOL 1022) Ba: 28.42 (tall oil fatty acids) Bc: 43.15 (diethanolamine/diisopropanolamine).
• base B exhibits, to a proper degree, the following characteristics (listed in decreasing order of importance: - Bf) film-forming and protective power - Bp) polarity - Bs) degreasing power.
• the water-dispersible compositions of the present invention consist of four components, that are: base A, base B, dispersant and co-solvent.
• base A base A
• base B base B
• dispersant and co-solvent co-solvent
• the water-­dispersible compositions of the present invention can be employed both in a diluted state (conc. 3-5%) and in a concentrated state (conc. ⁇ 40%).
• the composition In the first case (conc. 3-5%) the composition will predominantly exhibit degreasing and detergent properties. The water-dispersible composition should however show sufficient film-forming properties too, because a protection, even though for a short time, of the steel sheet is necessary (in this case a continuous film of monomolecular thickness will suffice). In the second case (conc. ⁇ 40%) the water-dispersible composition will predominantly exhibit protective properties (that is, in this case it is preferable that the composition be able to form a continuous film having a multimolecular thickness). In some cases, it is necessary that the protective film be able to last many months (at least 4-5 months).

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• Chemical & Material Sciences (AREA)
• Organic Chemistry (AREA)
• Chemical Kinetics & Catalysis (AREA)
• General Chemical & Material Sciences (AREA)
• Oil, Petroleum & Natural Gas (AREA)
• Materials Engineering (AREA)
• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Metallurgy (AREA)
• Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
• Detergent Compositions (AREA)
• Application Of Or Painting With Fluid Materials (AREA)
• Lubricants (AREA)

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Citations (6)

• 1988
  • 1988-05-02 IT IT20418/88A patent/IT1217464B/it active
• 1989
  • 1989-04-13 EP EP89106585A patent/EP0340498B1/de not_active Expired - Lifetime
  • 1989-04-13 AT AT89106585T patent/ATE88765T1/de not_active IP Right Cessation
  • 1989-04-13 ES ES198989106585T patent/ES2039732T3/es not_active Expired - Lifetime
  • 1989-04-13 DE DE8989106585T patent/DE68906192T2/de not_active Expired - Fee Related

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