MXPA96004284A - Lubricants for via diamina alcal - Google Patents

Abstract

The present invention relates to a lubricant for alkaline free fatty acid alkaline diamine route, characterized in that it comprises: a) a dialkylamine, b) a hydrotrope soluble in water, selected from the group consisting of ethoxylated alkylamines having at least one 6 carbon atoms in the alkyl portion, nonionic surfactants and mixtures thereof, c) a source of alkalinity, d) a corrosion inhibitor, e) water, and wherein the lubricant has a pH greater than 8 and the Diamine is not neutralized with an acid to form a s

Description

"LUBRICANTS FOR VIA PIQUIÑA, ALCALINA" FIELD OF L INVENTION b the present invention relates to cornposi <;? one «diarnin lubricants. More particularly, the present invention relates to lubricating compositions for highly alkaline di-inine pathways. Still more important, the invention and invention relates to lubricant compositions for in vivo, alkydiainine + ene alkaline, which contain hiocides and / or corrosion inhibitors.

BACKGROUND OF THE INVENTION Ib The amines have been used extensively in various. lubricant types and in the inhibition of cracks by force in PET articles. Ueber, in the US patent No.

No. 5,062,978, discloses aqueous lubricating compositions that include a particular group of fatty alkylamines. The fatty alkylamines are neutralized with acids to adjust the pH of the solution to be within the neutral range of pH 5 to 8. The composition may also include dipersing agents and dielectric agents for the amine lubricant. In addition, solubilizers such as isopropanol, ethanol and glycols can be used. The agents disperse is can be tntanolarnma and chilmonoarninas and more fats y.f. alkoxylates. Ueber requires that, in order to improve the solubility of the < - The selected fatty films can add acids that are neutral pH salts with the amines, to the lubricant composition, where the organic acids are the acids that are preterred to be used in the neutralization of the amines. U.S. Patent No. 5,244.58 * 3 describes a Anti-microbial lubricant based on a fatty acid and a quaternary ammonium salt, antimicrobial. i, adds a sufficient amount of alkaline material to the composition to increase the pH to at least 8. Optionally, an amine may be included in the composition to significantly increase the antimicrobial and lubricating properties of the composition. Suitable amines include mononuclear and di amines, such as secondary amines. Corrosion protection agents are also described in conjunction with the lubricant based on fatty acid mentioned. As understood by those skilled in the art, lubricants based on fatty acids are different from synthetic diary lubricants, where lubricants based on fatty acid have a source of alkalinity incorporated into them in order to form soaps at pH. U.S. Patent Nos. 5,009,001, 5,073,280 and 5,223,162, all from the applicant's property of this application, describe the use of amines in compositions ^ '*? stress cracking biomes, for use in the prevention of stress cracking in PFT articles. US Patent No. 5,009,801 discloses the use of a lubricant based on fatty acid, which carries the stress cracking inhibitor. and saponifies the fatty acid with an alkali metal hydroxide or free base amines, such as primary, secondary and tertiary amines. The stress cracking agent is a hydrocarbon ion substituted with a hydrophilic material, having an alkyl or aplo-side chain. The saponifying agent * for neutralizing * the fatty acid preferably is an amine instead of using a potassium hydroxide or the like, because it is generally understood that the potassium hydroxide contributes and promotes stress cracking in the articles. of PET. U.S. Patent No. 5,073,280 describes a -co position for the inhibition of stress cracking using an amine and more than 6 carbon atoms as the inhibitor of stress cracking. The stress cracking inhibitor can be applied directly to the PET article by means of a fatty acid lubricant or it can be included in the contents of the container. The selected amine is preferably a neutral amine. Fatty acid with a base has been neutralised. It has been found that, by using amines of more than 6 carbon atoms as an inhibitor of stress cracking, tj- 'fatty acid can be neutralized with potassium hydroxide without causing stress cracking in PET articles. The amines can be primary, secondary or tertiary amines. The secondary amines, for example, can be a hydrogenated tallow diarrhea, oleiidiarnines and the like. U.S. Patent No. 5,223,162 discloses a wash composition which includes a hydrocarbon substituted aromatic hydrocarbon having an alkyl or aryl side chain, for use in the inhibition of stress cracking. The wash composition is a caustic solution wherein the presence of the hydrocarbon substituted aromatic hydrocarbon has been found to reduce stress cracking during the washing operation. Optionally, amines can be used to increase the stress cracking inhibition properties of the hydrophilic substituted aromatic hydrocarbons. Said amines may be primary, secondary or tertiary amines, together with other amines, such as alkoxylated acids. Although the amines have been used in a variety of lubricant compositions and compositions for the inhibition of stress cracking, no attempt has been made to use the amines in a distinct synthetic diamine lubricant composition. As is known to those skilled in the art to which the present invention relates, aqueous solutions for the use of alkyldial mine lubricants have a tendency to act on the mild steel and create and deposit an unpleasantly black dirt or mud. , especially not around brewery fillers or other beverage pre-fillers. In addition, said lubricants do not achieve the optimum biocidal levels desired. Thus, it will be appreciated that a major advantage in the art would be obtained if there was a track lubricant, from Lalqui lamina, which minimized the oxidation of the tracks "E sweet steel and the creation of sludge, at the same time that exhibited i ncr * ernentada biocide activity. It is to this end that the present invention is directed.

BRIEF DESCRIPTION OF THE INVENTION In accordance with the present invention, improved lubricants of strongly alkaline alkyd, • * made from lubricant concentrates that are free of fatty acids and that are prepared by mixing with the mine a water-soluble hydrotrope for the diamine. Preferably the hydrotrope soluble in water is an ethoxylated hydrotrope. When using the hydrophobic hydrotrope, the diarynin is solubilized in a solution due to the ernulsifying nature of the hydrotrope. Likewise, the hydrotrope allows the introduction of biocides of the quaternary ammonium type in the concentrate, and in the use solution.

The present concentrate includes ad-cyclone and a corrosion inhibitor. Preferably the corrosion inhibitor is also a reducing agent. Useful corrosion inhibitors, which are also reducing agents include: sodium nitrite, sodium thiosulfate, sodium ribosulfate and the like, as well as mixtures thereof. Other useful corrosion inhibitors, while not reducing agents, include mercaptobenzothiazole, sodium benzoate and the like, ,ace? co or their mix1 * ,. Suitable biocides that may be included are compounds of the quaternary ammonium type. A source of alkalinity is also included to raise the pH levels of the use solution to the leseada scale. Accordingly, the diarrhe component does not become neutrized. The lubricants prepared from the concentrate * are strongly alkaline, having a pH greater than or equal to R.O and, preferably, a pH between pH 9.0 and approximately pH 13.0. The solutions for use are prepared by mixing the concentrate with water. Generally, the use solution contains a portion of concentrate approximately 1/100 to 1/1000 parts of water. Although the present compositions do not inhibit stress cracking, they minimize the oxidation of the mild steel conveyors and considerably reduce the formation of the black dirt, which allows the introduction of a biocide. Accordingly, in one aspect of the invention, a par-a-lane lubricant based on a diarrhea, free of fatty acid b comprises: (a) an alkyldiarnma, (b) a water-soluble hydrotrope selected from the group consists of ethoxylated alkylam- amides that have at least alkyl phtho- tines in the alkyl moiety, non-ionic agents and IT mixes itself; (c) a source of alkalinity; (d) a corrosion inhibitor *; (e) water; and wherein the lubricant has a pH greater than 8 and the day not L5 is neutralized. According to another aspect of the invention, a lubricant-free, fatty acid-free pathway lubricant concentrate comprises: (a) an alkyldiarmin, a hydrotrope soluble in water, selected from the group consisting of alkyl ethoxylated products having at least 6 carbon atoms in the alkyl portion, nonionic tertiary agents and their mixtures; (c) a water soluble reducing agent; 25 (d) water; and where the diamine is not neutralized and the concentrate has? pH between 11.5 and 13.0, aproximadamen. For a more complete understanding of the present invention reference is made to the following detailed description and to the appended examples. b DESCRIPTION OF THE PREFERRED MODALITIES According to the present invention there is provided a lubricant for a pathway to which the diamine has a pH greater than LC), which generally comprises: (a) a diamine lubricant; (b) a water soluble hydrocarbon; (c) a corrosion inhibitor; (d) a source of alkali; and 15 (e) water. A biocide can also be included with it. The lubricant is prepared from a lubricant concentrate generally comprising, by weight: (a) about 0.5 to 15 percent of the diamine; 20 (b) from 1 to 30 percent, approximately, of the hydrographic clothing; and (o) from 0 to 15 percent of the biocide, approximately; (d) from about 1 to 15 percent of the corrosion inhibitor; (e) an effective amount of the alkalinity source, sufficient to raise the pH of the use solution to pH equal to or greater than 8; and ^ - f) The rest, water. Preferably the concentrate comprises: (a) from 1 to 10 percent, approximately, of the sheet; (b) Approximately 4 to 20 percent of the hydrotrope; ic) from 1 to 10 percent, approximately, of the biocide; (d) about 5 to 10 percent, of the reducing corrosion inhibitor *. (e) approximately 0.5 to 1.0 percent of the source of alkalinity; and (f) the rest, water. The lubricant is prepared by diluting the concentrate with water in a volumetric ratio of concentrate to water ranging from 1/100 to 1/1000 and, preferably, from 1/200 to 1/800. Heretofore, as shown in the prior art *, diarrhene lubricants have been neutralized with a weak acid, such as acetic acid and the like. It does not happen here - "=" "1? Cha neut alización.Although the non-neutralized dianin, which is alkaline, is emulsified to an aqueous solution using the water-soluble h? Dr * ot. It is notable that, traditionally, with the lubricants of synthetic amine, diamine lubricants are more soluble in water.Therefore, the use of water-soluble hydrotrope allows the formation of a water-soluble lubricant having a pH greater than 8. The mine lubricants in accordance with This invention must be distinguished from the fatty acid lubricants.The fatty acid lubricants require the use of materials ^ "We use to form soaps what is avoided < on diarynin lubricants such as those described subsequently. Diamine lubricants, when they are jraso acid free lubricants, are usually not affected by the hardness of the water. This is an important benefit in making the formulation of synthetic iliarnma, because hard water sequestrants, chelators, and chemists are not necessary in the composition. -mulars. While it is understood that the diamine composition according to this invention may include additives, It is also understood that the diary composition can only include the basic ingredients of a hydrotrope corrosion inhibitor, a source of alkalinity and water, in combination with the selected day. That compact formulation has surprising results with regard to L5 obtaining the effective lubricating properties. The oil-soluble diarrins used here, from - preference, they are primary amines having an alkylene residue which can be straight or branched chain, containing from 8 to 24 carbon atoms and, preferably, from 10 to 18 carbon atoms. Preferably the alkylene group contains additional substance. Preferably the fatty alkyldianines used here generally correspond to the formula: Ti Ri NH R2 - NH2, n where each of Ri and R2 is linear alkyl, Ri being an alkyl of 8 to 24 carbon atoms and R2 an alkyl group of 1 to 3 carbon atoms. Examples of suitable slides are olefin 1 dia, cocodia, ipip st idi arin, linolei Idi amine, stearyl diamine, 2-ethyledodecanodine and the like. You can use 'mixtures of diammas. The diarms contemplated for use herein may be obtained from various commercial sources, such as Uitco Chemical's oleildi amine, sold under the brand name "NDROGEN * 572. Typically, the diarynin is present in the co-use solution or a diamine. of free base. Any hydrotrope soluble in water that can form hydrotropes with the diamine can be used here. Among the most useful materials, preferably, are the amines and the non-ionic surfactants. The amines They can be monoarnals, di amines, tp amines, tet r aanu ies, pentaamines, alkoxylates and the like. Said amines may be substituted or unsubstituted. While these amines may contain other alkoxy sides, sufficient moles of ethylene oxide must be contained to allow hydrotrope formation of the diarrnin in the aqueous system. Generally, the ethoxylated amine forms hydrotrope in an alkylam having at least six carbon atoms in the alkyl portion. The amine can be a primary, secondary and / or tertiary amine.

The alkoxylated alkylamines that can be employed in this invention have the general formula: Rl N - R3 R2 wherein Ri and 2 are hydrogen, coxy or alkyl; R3 is a "linear, unsubstituted alkyl group having 12 carbon atoms and preferably 10 carbon atoms; and X is an alkoxylated group. Preferably, the hydrotrope is an oxia-oxylated amine selected from the group consisting of N-alkylaryl oxyalkylated and N-alkylarylated oxyalkylene quarydeiamines. The examples of N-al qui laminas oxia quiladas *, on oxalkylated fatty amines, such as N-cocoamine 'ox? al qui lada, N-stear? lamina, N-? alm? t? larnma and si i lar-es. The N-aJ uilo group should have from 8 to 24 carbon atoms, preferably from 12 to 20 atoms of carbon and, better still, from 15 to 18 carbon atoms. This group can be more tured, having from 1 to 4 sites of msaturation, preferably from 1 to 2 sites of 1 nsaturation. Said amines correspond to the formula: R-NHC wherein R is an alkyl or alkalyl group of 18 to 24 carbon atoms. The polyoxyalkylenic ether portion of the oxyalkylated sheet is preferably completely derived from ethylene oxide and is thus a polyoxyethylated N-alkylaryn. However, the pol loxiet iien / pol 10 prop? Len-N-alqu? Lamellar (block, block, and hetepoche, particularly block 5 copolymers having an internal poxy block, crowned with a block of polyoxypropylene.) The use of other alkylene oxides, such as oxide of but full, full ammonium oxide and higher alkylene oxides, such as the oxides of., to the full VIKOLOX *, which have from 8 to 18 carbon atoms in The alkylene residue is also suitable. If alkylene oxides with an alkylene residue of 8 carbon atoms or more are used, then more than 4 moles of said alkylene oxide, preferably 2 moles, should not be used as the crown. Preferably the oxyallation is carried out with substantially all of the ethylene oxide. Must be used from 5 to 40 moles, approximately, preferably from 10 to 'C0 moles, approximately, and especially from 12 to 16 moles, c * prox? of ethylene oxide. The N-alkylalkylene diary correspond to the formula: Rl \ N - 3 NH2 '. > F / R2 These are oxyalkylated, preferably from the same bread basket as the Lacy oxyalkylene N-amines, that is, under suitable oxyalkylation conditions known to those skilled in the art. Ri is preferably a linear or branched alkyl group of 8 to 20 atoms of carbon, optionally containing an unsaturation, better still, alkyl of 12 to 10 carbon atoms and, most preferred, alkyl of 15 to 18 carbon atoms. carbon atoms. R 2 is an alkylene residue containing 2 6 carbon atoms, preferably 3 to 6 carbon atoms, for example 1, -? Rolene, 1, 4-but? log, 1,5-pentylene or 1,6-hexylene (l, ß-full hexarnet). Most preferably, R2 is tmemetry, Ri is 13 1 5 carbon atoms and oxyalkylation is derived from oxide of etiieno. An oxyalkylated N-alkylalkylenediarin is SYNPROLAMR 35 3N 10, obtainable from Imperial Chemical, Inc. (TCI). Among the amines alc? Useful compounds are the toxinized amines, such as, for example, oleylamma (ethoxylated, seboarnma (ethoxylated), cocoamma (ethoxylated), as well as mixtures of them.) These compounds are well known and commercially available. noted above, the amine hydrotrope is used as the free base amine.In many cases, the alkoxylated amine hydrotropes of the present can be classically defined as nonionic surfactants, depending on the degree of alkalylation. , it is not essential for the present invention that the ethoxylated amine be a nonionic surfactant, only that it be capable of hydrotrope with the diamine, In addition, the di amines are optimally employed herein because of their compatibility with the biocides Another useful class of hydrotropes is the non-ionic, water-soluble, well-known and commercially available surface-active agents surfactants. cos which are advantageously employed in the compositions of the present invention are basically the adducts of polyalkyl-full hydrophobic bases, wherein the oxyalkylene portion of the molecule includes ethylene oxide, butadiene dioxide and giicidol; mixtures of these alkyne oxides with each other and with minor amounts of propylene oxide, butyl oxide, alumino oxide, styrene oxide and other higher molecular weight aiikylene oxides. For example, the ethereal oxide is condensed with the hydrophobic base in an amount sufficient to impart water dispersibility or water solubility and surfactant properties to the molecule being prepared. The exact amount of condensate oxide in the hydrophobic base will depend on the chemical characteristics of the base employed and will be readily apparent to those skilled in the art with respect to the synthesis of the oxyalkylene surfactant condensates. Typical hydrophobic bases that can be condensed with ethylene oxide to prepare non-ionic surfactants include: mono and "-lialkyl 1-phenoxypol-loxy-propylene, condensed with a base having approximately 1 to 6 carbon atoms and at least one reactive hydrogen atom, fatty acids, fatty amines different from those listed above, fatty amines and fatty alcohols The hydrocarbon ethers, such as the benzyl tertiary or the lower alkyl ether of the polyoxyethylene surfactant condensates, are also advantageously employed in the compositions of the invention Among the suitable nonionic surfactants There are the polyoxiet condensates filled with alkyl phenols having approximately 6 to 20 carbon atoms in the alkyl portion and from 5 to 15 ethenoxy groups., to roximadamen e, in the radical polioxietiieno. The alkyl substituent in the aromatic nucleus may be octyl, diaryl, n-dodecyl, polymethyl propylene, such as a propylene number and a trimer, octyl, name, etc. The benzyl ethers of the condensates of poloxaline filled with rnonoal which 1 phenols have good properties to the compositions of the invention. A typical product corresponds to the formula: 0i8Hi7-0- (0CH2CH2) i50CH2C6H5 The higher polyalkyloxyethylated phenols, which correspond to the formula: wherein R is hydrogen or an alkyl radical having from 1 to 1? carbon atoms, R 'and R "are alkyl radicals having from 6 to 16 carbon atoms and n having a value from 10 to 40, are also suitable as non-halogen surfactants. d? non? lphene.1 condensed with 14 moles of packed oxide Other nonionic surfactants Suitable blends are cogenerated mixtures of conjugated polyoxyalkylene compounds containing at least one oxyalkylene chain hydr The polymers of oxyalkylene groups obtained from propylene oxide, butylene oxide, arylene oxide, styrene oxide, mixtures of said oxyalkylene groups with each other and with minor amounts of polyoxyalkylene groups obtained from ethylene oxide, butyiene dioxide and glycidol are illustrative of the hydrophobic oxyalkylene chains The polymers of oxyalkylene groups obtained from ethylene oxide, butyl dioxide, glycidol, mixtures of said group Oxyalkylene with each other and with minor amounts of oxyalkylene groups obtained from propylene oxide, butylene oxide, ammonium oxide and styrene oxide, are illustrative of the oxyalkylene chains J-? r * or rows. Other suitable non-suitable surfactants are the polyoxyethyl esters of higher fatty acids having from about 8 to 22 carbon atoms in the acyl group and from 8 to 15 ethoxy units in the oxyethylene portion. The typical products are the olyloxyethylene adducts of tallow oil, rosin acids, laupco, stearic and oleic acids, and the like. Other non-ionic agents are the polyoxide condensates and the wood with amines and higher fatty acid amides having approximately 8 to 22 carbon atoms in the alkyl or acyl group and approximately 10 to 15 units. ethoxy in the oxyethylene portion. The illustrative products are coconut oil, amines and fatty acid amides, condensing them with about 10 to 15 moles of ethylene oxide. Suitable non-ionic poloxyalkylene surfactants are the alkylene oxide adducts with higher aliphatic alcohols and t-haloalcohols which toll approximately 8 to 22 carbon atoms in the aliphatic portion and approximately 3 to 15 carbon atoms. -bono in the oxyalkylene portion. Typical products are synthetic fatty alcohols, such as n-dodecyl, n-undecyl, n-dodecyl, n-tpdecyl, n-tdedecyl, n-hexadecyl, n-octadecyl and n-octadecyl alcohols. their mixtures, condensed with 3 to 15 moles of ethylene oxide; a mixture of normal fatty alcohols, condensed with 9 to 29 mol of ethylene oxide and 3 f 10 mol of propylene oxide, in any order, or a mixture of normal fatty alcohols condensed with a mixture of propylene and ethylene oxides, or? linear secondary alcohol, condensed with 3 to 10 moles of ethylene oxide, or a linear secondary alcohol b condensed with a mixture of propylene and ethyl no, or a linear secondary alcohol condensed with a mixture of ethylene oxides, propylene and higher alkyl. As noted *, these surfactants 10 are well known and can be obtained commercially, such < These are sold by BASF under the name PLURONTC and TETRONIC, as well as those sold by Union Carbide under the name TERG1TÜ, In general, the hydrotrope and the laminate are present in a respective weight ratio of approximately L5 2: 1. The biocide which may be included in the present invention, is a biocide of the quaternary ammonium chloride type, well known to those skilled in the art and which, in general, corresponds to the formula: 20 (+ ) (-) Rl N R3 Cl \ 25 R2 wherein each of R, Ri, R2 and R3, individually, is selected from the group of hydrogen, alkyl groups of 1 to 12.-atoms of carbon, or aplo.

- 'Its composition also includes a corrosion inhibitor which, preferably, is a «reducing person too. The r * corrosion inhibitor minimizes the oxidation of a conveyor with a mild stainless steel or plastic path. Although it is not as effective as an inhibitor of corrosion with reducing agent, other corrosion inhibitors can also be used *. Useful compounds include sodium nitrate, sodium thiosulfate, sodium bisulfate, rnercaptobenzot lazole, sodium benzoate, substituted imidazoline derivatives which include the substituted coconut fatty acid irnidazole and < -? rollares. It is also possible to use mixtures of the L-reducing reducing agents. Preferably, sodium nitrate is used, since it serves both as a reducing agent and as an inhibitor * of corrosion. It has been observed that The presence of nitrite in the present lubricant prevents the oxidation and formation of dirt or black mud that has been found up to now in breweries. The source of alkalinity is used to raise the pH of the lubricant to the desired levels and contributes to cleaning. While not wishing to be bound by any theory, it is believed that by raising the pH to the high levels contemplated herein, prevention of oxidization and prevention of dirt is increased. Furthermore, it is believed that the high pH maintains the diarnin in an insoluble free base state, thus lowering its contribution to the reactions of f% '< ? dací on Any compatible alkalinity source can be used, such as carbonates, metasilicates, bicarbonates, hydr-oxides and sirní lar-es, as well as their mixtures. Preferably a strong base is used, such as sodium hydroxide, potassium hydroxide, etc. and similar, co or source of alkalinity. It should be noted that, in selecting the diarynin and an amine hydrotrope, optimally, the alkyl portion of the dimer has approximately the same carbon chain length as the alkyl portion of the amine. In general, the concentrate has an approximate pH of 11.0 to 13.0. In addition, as noted above, the track lubricants of the present are particularly useful on conveyors with stainless steel or plastic mild steel path, such as those used to fill glass, aluminum and PET two-piece containers. The solutions for use as a lubricant herein, which are advantageously supplied in the form of concentrates which are subsequently preferably diluted with water for use, may also contain additional ingredients such as descramblers, algicides, etc., which can be Incorporate into the concentrate or can be added to the use solution. When preparing the di-lubricating lubricant concentrate of the present, the components are mixed together.

',' "* * 'Yd? I would barely warm the < ? < Jua approximates at 37 ° C until 54 ° C, and the other ingredients are added. When preparing the use solution, add the concentrate to the required amount of water, usually at room temperature. b The lubricant composition according to this invention, under ordinary conditions, is not affected by the hardness of the water. Consequently, water softeners are not necessary, which are used habitually with the - soap lubricants of the fatty acid type, for the lubricants O 1e diarnina of the present. As noted, the solution has a pH greater than or equal to 8 and, usually, ranging from 9.0 to 13.0 and, preferably, from 10.0 to 11.5, approximately. For a more complete understanding of the present invention, reference is made to the following non-limiting examples. In the examples, which should be considered as co-designs and not as limitations of the present invention, all parts are by weight in the absence of anything to the contrary. 0 EXAMPLE I This example illustrates the preparation of a diarynine lubricant concentrate according to the present invention. b To a suitable vessel, equipped with agitator means and at room temperature, the following is mixed: -number Lens Quantity parts by weight Di amine d > 5.0 HLdr-otr-opo of water-soluble amine < 2 > 10.0 Quaternary ammonium compound1 ^ 3) 9.0 HL potassium oxide, 45% 0.6 Sodium nitrate 5.0 Water 70.4 (1) An alkyldiarnine sold by Uitco Chemical ba or the brand name - Ando n 572. (2) An alkylamine (ethoxylated) sold by Uitco Chemical under the Varó e K215 brand. (3) A commercially available product, sold by * Stepan Chemical under the trademark BTC 2125.

EXAMPLE II Following the procedure of Example I, a lubricant concentrate of diana according to the present invention is prepared from the following: ingredient Amount parts by weight Di amine d > 5.0 HLdrotrope of water soluble amine < 2 > 10.0 Potassium hydroxide, 45% O.fi Sodium nitrite 9.9 Water 74.5 (1) Same as in Example I.

To Tgu l that in example T EXAMPLE III Following the procedure of Example I, a lubricant concentrate of diana was prepared from the following: Ingredient Quantity, parts by weight Diamine C1) 3.0 active agent no? Ón? colt; 2) 1 6. 0 KOH, 45% 0. 5 Sodium nitrite 1.0 Water 79.5 tD as in example 1. C2 > an ethoxylated norulfenol sold by Union Carbide under the trademark Tergitol NP-9.

EXAMPLE IV To test the efficacy of the present invention on the inhibition of corrosion and sludge formation, [> repair a 0.25% use solution by mixing 25 parts of the concentrate of Example II with 1000 parts of water in a suitable container, at room temperature. Then a piece of carbon steel 1010 of 2.54 x 7.62 cm is immersed in the lubricant, so that approximately.

• "Half of the sample is submerged in the lubricant and the other half is in the same form, and it is observed that the sample was in search of oxygenation after 21 days in the lubricant is not apparent runguna oxidation.

EXAMPLE V The TTT example is repeated except that 40 parts of beer are added to the 160 parts of the lubricant use solution at 0.25%. After 5 days no oxidation or sludge is observed on the samples submerged in the lubricant. It can be seen from the above that, by using hydrotropes soluble in water and, in particular, ethoxylated amines and / or non-ionic surfactants, alkaline diarynin lubricants are provided which can be used in various containers and articles, with a decrease in corrosiveness, while providing excellent lubricity, cleanliness and cleanliness. Although preferred embodiments of the invention are described herein in detail, it will be understood by those skilled in the art that variations may be made therein without departing from the spirit of the invention or the scope of the claims that follow.

Claims (2)

1. NOVELTY OF THE INVENTION CLAIMS 1. - A pair-based, alkaline diamine-based lubricant, free of fatty acid, characterized in that it comprises: a) the diaphragm; (b) a hydrotrope soluble in water, selected from the group consisting of ethoxylated alkylammers having at least 6 carbon atoms in the alkyl portion, nonionic surfactants and mixtures of the same; (c) a source of alkalinity; (d) a corrosion inhibitor *; (e) water; and wherein the lubricant has a pH greater than 8 and the diamine is not neutralized with an acid to form a salt.
2. 2. The lubricant according to claim 1, further characterized in that it additionally comprises a quaternary ammonium biocide. 3, - The oil lubricant with claim 1, further characterized in that the water soluble amine is selected from the group consisting of cocoa ina (et? Xylated), oleylalanine (ethoxylated), tallowamine (ethoxylated) and mixtures thereof. 4. The lubricant according to claim 1, further characterized in that the hydrotrope is the amine, the amine being present as a basic amine. . ' r 5. - Lubricant according to the invention, further characterized in that the hydrometer and the diamine are present in a respective weight ratio of approximately 2: 1., 6. Lubricant in accordance with claim 1, further characterized because the corrosion inhibitor is a reducing agent. 7. A lubricant concentrate for the pathway, based on alkaline diarrine, free of fatty acid, characterized in that it comprises: (a) a diammonium; (b) a hydrotrope soluble in water, selected from the group consisting of alkylamides having at least 6 carbon atoms in the alkyl portion, nonionic surfactants and mixtures thereof; (c) a water soluble reducing agent; (d) water; and wherein the diapuna is not neutralized with an acid to form a salt, and the concentrate has a pH between about 11.5 and about 13". 8. A concentrate according to claim 7, further characterized in that it additionally comprises: a source of alkalinity, the source of alkalinity being present in a sufficient amount such that a use solution prepared therefrom has a higher pH 8. 8. A concentrate according to claim 7, further characterized in that it additionally comprises a quaternary ammonium chloride biocide. 10. - Fl concentrated lubri ante in accordance with the c- *? I saw ndication 7, also characterized because it comprises adi cíona! In the case of: (a) from 0.5 to 15% of the amine; (b) about 1 to 30% of the hydrotrope; (c) Approximately 1 to 15% of the reducing agent *; (d) an effective amount of sufficient alkalinity source to raise the pH of a lubricant prepared therefrom, at a pH greater than 8; (e) about 0 to 15% of a biocide; and (f) the rest is ua. 11. The condensation according to claim 10, further characterized in that the hydrotrope is an alkoxylated amine having at least 6 carbon atoms in the uyl portion. 12. The concentrate according to claim 11, further characterized in that the hydrotrope is selected from the group consisting of cocoa (ethoxylated), ole (ethoxylated), seboanam (ethoxylated) and mixtures of the plants. 13. The concentrate according to claim 12, further characterized in that the hydrographic coat and the dimer are present in a respective weight ratio of about 2: 1. 1.4.- The concentrate according to claim 7, further characterized in that the hydrotrope and the amine are present in a respective weight ratio of about 2: 1. 15. - A lubricant for diamine route comprising: (a) water; and ib) the concentrate of claim 13; The Lubricant comprises one part by weight of the concentrate by about 100 to 1000 parts by weight of water. OR / cgt *