CA2224966C

CA2224966C - Alkyl ether amine conveyor lubricants containing corrosion inhibitors

Info

Publication number: CA2224966C
Application number: CA002224966A
Authority: CA
Inventors: Kimberly L. Person Hei; Michael E. Besse; Bruce E. Schmidt; Christopher S. Sykes
Original assignee: Ecolab Inc
Current assignee: Ecolab Inc
Priority date: 1996-05-31
Filing date: 1997-03-10
Publication date: 2001-09-18
Anticipated expiration: 2017-03-10
Also published as: BR9702268A; DE69704757D1; DE69704757T2; JPH10511140A; EP0847436B1; AR007144A1; JP3128138B2; MX9800882A; ATE201044T1; HK1017010A1; WO1997045509A1; TW409144B; PL324797A1; NZ329858A; CN1194665A; CN1070529C; AU2213797A; US5723418A; PL185138B1; AU703374B2

Abstract

The invention is a lubricant concentrate composition, use solution, and meth od of use. The lubricant includes amine compounds of the formula R1 - O - R2 - NH2, R1 - O - R2 - NH - R3 - NH2, and mixtures thereof, wherein R1 may be a linear C6-C18 alkyl, R2 may be a linear or branched C1-C8 alkyl, and R3 may be a linear C1-C8 alkyl, and a corrosion inhibitor. The lubricant composition preferably includes a polycarboxylic acid as a corrosion inhibitor. The composition may also include a hydrotrope, stabilizer, and a surfactant to provide detergency to the composition upon dilution and use. The invention also includes a lubricant use solution resulting from dilution of this concentrate.

Description

W O 9714S509 PCT~US971~4153 Ar.RyT. ~ ~ ~R ~MTNn3 CO~V~:y~ L ~ RI~rrS CONrr~T~TNG
CO~ROSION T~n~TRTTOR,~

F;~ld of the Tnv~nt;~n The invention relates generally to amine-based lubricant compositions and methods of use. More speci~ically, the invention relates to antimicrobial conveyor lubricants containing cor~osion inhibitors which are based upon composition~ which include linear alkyl ether amine and/or diamine compounds.

~ach~ d o~ the Invention Beverages and other comestibles are o~ten processed and packaged on mechanized conveyor systems.
These conveyor systems are lubricated to reduce ~riction between the packaging and the load bearing sur~ace o~
the conveyor.
Antimicrobial agents are use~ul for conveyor systems which may transport food substances. Spillage o~ beverage and other comestibles on the conveyor o~ten results in the growth o~ bacteria, yeast and mold and may create a slime or soil which, in turn, hampers conveyor per~ormance and may also detract ~rom Product purity and appearance. Antimicrobial agents are particularly use~ul ~or reducing such slime ~ormation in conveyor systems which transport ~ood substances.
In the past, the lubricants commonly used on the load bearing sur~aces o~ these conveyor systems typically contained ~atty acid soaps as the active lubrication ingredient, and antimicrobial agents to control microbial growth. However, the tendency o~
~atty acid soap lubricants to react with water hardness CA 02224966 l998-0l-27 W O 97/~5509 PCTnJS97/04153 ions compromised the overall per~ormance o~ the lubricant.
~ ubricant compositions which do not contain ~atty acids have been developed in an e~ort to avoid or eliminate the precipitation problem encountered when the lubricant is diluted with water containing hardness ions For example, Jansen, U.S. Pat. No 4,839,067 discloses a process ~or the maintenance o~ chain-type conveyor belts by treating the conveyor belt with a lubricant composition containing a lu~ricating amount of a neutralized C1218 primary ~atty amine. However, as noted in Jansen, the primary fatty acid amines tend to ~orm a precipitate in the presence o~ anions such as S04-2 r Po4~3 and C03 _2 ~ commonly found as impurities in water which will plug spray nozzles and soil the sur~aces o~
the conveyor system in much the same way as ~atty acid soaps in the presence o~ wate~ hardness.
Schmidt et al., U S Patent No. 5,182,035 discloses aliphatic ether diamine acetates which are used in lubricant compositions in combination with alcoholic hydrotropes used to enhance physical stability.
Weber et al., U.S. Patent No. 5,062,978 also discloses aqueous lubricant compositions based upon ~atty alkyl amines whlch are use~ul in conveyor belt operations, especially in the transport o~ bottles.
Schapira, Published European Patent Application No. 0,533,522 Al discloses lubricant compositions comprising branched saturated or unsaturated C6 to C2l alkyl ether amines and diamines The lubricant compositions are use~ul in conveyor CA 02224966 l998-0l-27 W O 97/45509 PCT~US97/041~3 operations and may also comprise a surfactant, and alcohol solvent.
An additional precipitate problem occurs with the formation of a black precipitate which occurs during the production of certain foods. This black precipitate most often occurs during the production, processing and bottling of carbonated beverages such as beer. In the past, this precipitate has formed to varying degrees in given applications. The precipitate is believed to result from metal on metal wear, metal corrosion, and the interaction of certain food soils, ~otherwise present in the processing environment) with the lubricant used in the application.
Hence a need still exists for an antimicrobial lubricant for use on all packaging materials and conveyor surfaces, which provides improved metal on metal lubricity with corrosion inhibition properties.

~:ummary o:E the Inv~ntion In accordance with a first aspect o~ the invention, there is provided a lubricant concentrate composition having an effective lubricating amount of amine compound of the formula, Rl - O - R2 - NH2 Rl - O - R2 - NH - R3 NH2 and mixtures thereof wherein Rl may be a linear saturated or unsaturated C6 - Cl8, R2 may be a linear or branched Cl -C8 alkyl, and R3 may be a linear or branched Cl - C8 alkyl. The concentrate contains a co~rosion inhibitor and may also contain a surfactant in an amount effective to provide detergency to the concentrate upon dilution -W 09714550g PCTrUS97/04153 and use, and an acid in an amount efféctive to solubilize the amine. Optionally, the concentrate may also comprise a hydrotrope for product stability.
The invention also provides a lubricant use solution resulting from dilution of this concentrate, with the amine compound present in a concentration ranging from about 10 ppm to 10000 ppm.
In accordance with another aspect of the invention there is provided a method of lubricating a conveyor system with a use solution of the lubricant concentrate composition of the invention.
The invention is a lubricant comprised o~
linear alkyl ether amines and corrosion inhibitors. The linear alkyl ether amine lubricants o~ the invention promote lubricity and solubility in aqueous systems in the presence of ions and beverage soil, and remain in solution over a wide pH range. The lubricants of the invention remain stable and substantially unreacted with free anions and food soil present ln the system.
Furthermore, the linear alkyl ether amines o~ the invention negate the need for alcohol type solvents to maintain physical stability of the concentrate.
Compositions o~ the invention also provide reduced metal corrosion and improved metal lubricity. The claimed invention also provides good gliding action at low dilution rates for polyethylene terephthalate (PET), glass, and metal surfaces. Further, the lubricants of the invention also provide antimicrobial ef~icacy on non-food contact surfaces providing a bacterial reduction of 99.9 within five minutes.

W O 97/45509 PCT~US97/04153 Detailed Pescription of the Pre~erred ~mhodiment The invention is a lubricant concentrate composition and use solution. The concentrate may be a solid or a li~uid. The compositions of the invention include linear alkyl ether amine compounds which provide lubricity, antimicrobial character, as well as a reduction in the formation of various precipitates which often occur in the environment of use. Compositions of the invention also include corrosion inhibitors, detergency agents, an acid source, and optional hydrotropes, among other constituents. The invention also includes methods of using the claimed invention.
A. The Alkyl ~ther Ami~e Compounds The lubricant of the invention comprises an amine compound. The amine compound functions to enhance compositional lubricity, further antimicrobial character, and reduce or eliminate the formation of various precipitates resulting from the dilution o~
water and/or cont~m~n~nts on the sur~ace of application.
The amine compounds of the invention may comprise any number of species. Preferably, the amine compound is an alkyl ether amine compound of the formula, Rl - O-R2 - NH2, (1) Rl - O - R2 - NH - R3 - NH2, (2) and mixtures thereof wherein Rl may be a linear saturated or unsaturated C6 - C18 alkyl, R2 may be a linear or branched C1 - C8 alkyl, and R3 may be a linear or branched C1 - C8 alkyl.

W O 97/4~509 PCT~US97/0~153 More~pre~erably, Rl is a linear C12 - C16 alkyl;
R2 is a C2 - C6 linear or branched alkyl; and R3 is a linear or branched C~ - C6 alkyl.
Preferred compositions of the invention include linear al~yl ether amine compounds o~ formulas (1) and (2) wherein R1 is C12 - C16, R2 is C3 and R3 is C3.
When the amine compound used is an amine o~
formula (1) and/or ~2), R1 is either a linear alkyl Cl2 -C16 or a mixture of linear alkyl C10 - C12 and C14 - C16.
Overall the linear alkyl ether amine compounds used in the composition of the invention provide lower use concentrations, upon dilution, with enhanced lubricity. The amount of the amine compound in the concentrate generally ranges from about 0.1 wt-~ to 90 15 wt-~, preferably about 0.25 wt-~ to 75 wt-~, and more pre~erably about 0.5 wt-~ to 50 wt-~.
The amine materials are commercially available from Tomah Products Incorporated as PA-19, PA-1618, PA-1816, DA-1618, DA-18, DA-19, DA-1816, and the like.
The use dilution of the concentrate is preferably calculated to get disinfectant or sanitizing ef~icacy in the intended application of use.
Accordingly, the active amine compound concentration in the composition o~ the invention ranges from about 10 25 ppm to 10000 ppm, preferably from about 20 ppm to 7500 ppm, and most pre~erably about 40 ppm to 5000 ppm.
B. ~orrosion Inhibitors The concentrate and use dilution compositions of the invention also include a corrosion inhibitor.
Useful corrosion inhibitors include polycarboxylic acids such as short chain carboxylic diacids, triacids, as well as phosphate esters and combinations thereo~.

W O 97/45509 PCT~US97/04153 Use~ul phosphate esters include alkyl phosphate esters, monoalkyl aryl phosphate esters, dialkyl aryl phosphate esters, trialkyl aryl phosphate esters, and mixtures thereo~ such as Emphos PS 236 commercially available from Witco Chemical Company.
More specifically, the esteri~ied alkyl phosphoric acids or phosphates correspond to the general ~ormula (3):
Rl - O - [CH2CH2 - O]n - PO3X2 (3) in which Rl is a linear or branched saturated primary alkyl group, C8 to C12, X is hydrogen and/or an alkali metal, and n is an integer in the range ~rom about 3 to 10 .
The esteri~ied alkyl aryl phosphoric acids or phosphates correspond to the general formula (4):
R2R3 - C6H3 - O - ~-CH2CH2 - O]n - PO3X2 (4) in which R2 is linear or branched saturated primary alkyl groups, C8 to Cl0, R3 is hydrogen, or linear or branched saturated primary alkyl groups, C~ or Cl0, X is hydrogen and/or an alkali metal, and n is an integer in the range ~rom about 4 to about 10.
Other useful corrosion inhibitors include the triazoles, such as benzotriazole, tolyltriazole and mercaptobenzothiazole, and in combinations with phosphonates such as 1-hydroxyethyiidene-1, 1-diphosphonic acid, and sur~actants such as oleic acid diethanolamide and sodium cocoamphohydroxy propyl sul~onate, and the like.
In accordance with the invention, the pre~erred corrosion inhibitors are polycarboxylic acids such as dicarboxylic acids. The acids which are pre~erred include adipic, glutaric, succinic, and CA 02224966 l998-0l-27 W O 97/45509 PCT~US97/04153 mixtures thereo~. The most pre~erred is a mixture o~
adipic, glutaric and succinic acid, which is a raw material sold by BASF under the name SOKALAN~ DCS.
The corrosion inhibitors concentra~ion in the , composition range ~rom 0.05~ to 25~ and, pre~erably, ~rom 0.1~ to 20~, in the concentrate. In one pre~erred aspect, the concentrate comprises ~rom about 1 wt-~ to 6 wt-~ of corrosion inhibitor and comprises the Sokalan~ DCS diacid mixture.
~. Neutralizina Aaent~
Generally, a neutralizing agent may also be used to provide an ef~ective pH between about 5 and 10 in both the concentrate and use solution.
Exemplary acids include organic and inorganic acids. Inorganic acids use~ul in the composition of the invention include hydrochloric acid, phosphoric acid, hydro~luoric acid, sul~uric acid, ni~ric acid, hydrobromic acid, and sul~amic acid, among others.
Organic acids useful in the invention include acetic acid, hydroxyacetic acid, gluconic acid, lactic acid, benzoic acid, C8-C20 saturated and unsaturated ~atty acids, such as oleic acid, and mixtures thereof.
The concentration o~ acid should be adequate and ef~ective to solubilize and stabilize the various constituents and the concentrate and use dilution compositions o~ the invention.
D. Sur~ac~ants The lubricant compositions o~ the invention optionally, but preferably, may ~urther include a sur~actant. The surfactant functions as an adjuvant to increase detergency and lubricity. Compounds which may be used as sur~actants in the invention include, CA 02224966 l998-0l-27 W O 97/45509 PCT~US97/04153 nonionic surfactants, amphoteric surfactants, anlonic surfactants, and cationic surfactants, among other compounds.
Anionic surfactants are generally those compounds containing a hydrophobic hydrocarbon moiety and a negati~ely charged hydrophilic moiety. Typical commercially available products provide either a carboxylate, sul~onate, sulfate or phosphate group as the negatively charged hydrophilic moiety. Particularly suitable anionic surfactants for use in the lubricant composition of the invention are the phosphate esters.
Broadly, any of the commercially available anionic surfactants may be usefully employed in the lubricant composition of the invention.
Nonionic surfactants are generally hydrophobic compounds which bear essentially no charge and exhibit a hydrophilic tendency due to the presence of oxygen in the molecule. Nonionic surfactants encompass a wide variety o~ polymeric compounds which include specifically, but not exclusively, ethoxylated alkylphenols, ethoxylated aliphatic alcohols, ethoxylated amines, ethoxylated ether amines, carboxylic esters, carboxylic amides, and polyoxyalkylene oxide block copolymers.
Particularly suitable nonionic surfactants for use in the lubricant composition of the invention are the alkoxylated (pre~erably ethoxylated) alcohols having the general formula Rl~O((CH2)mO)n wherein Rl~ is an aliphatic group having from about 8 to about 24 carbon atoms, m is a whole number from 1 to about 5, and n is a number from 1 to about 40 which represents the average number of ethyleneoxide groups on the molecule.

W O 97/45509 PCT~US97/04153 ~Q
Cationic sur~actants are also use~ul in the invention and may also ~unction as an additional antimicrobial. Typical examples include quaternary ammonium chloride sur~actants such as n-alkyl (C1218) dimethyl benzyl ammonium chloride, n-alkyl (C1~l8) dimethyl benzyl ammonium chloride, n-tetradecyl dimethyl benzyl ammonium chloride monohydrate, n-alkyl (C1214) dimethyl 1-naphthylmethyl ammonium chloride.
Amphoteric sur~actants, sur~actants containing both an acidic and a basic hydrophilic group can be used in the invention. Amphoteric surfactants can contain the anionic or cationic group common in anionic or cationic surfactants and additionally can contain either hydroxyl or other hydrophilic groups that enhance sur~actant properties. Such amphoteric surfactants include betaine sur~actants, sul~obetaine sur~actants, amphoteric imidazolinium derivatives and others.
In the concentrate, the sur~actant concentration generally ranges ~rom about 0.01 wt-~ to 50 wt-%, and pre~erably ~rom about 0.1 wt-~ to 20 wt-~.
More pre~erably, the sur~actant concentration ranges ~rom about 1 to 10 wt-~ and the sur~actant is a nonionic alcohol ethoxylate such as Neodol 25-7 from Shell Chemical.
E. Hydrotxo~e The lubricant composition o~ the invention may optionally include an e~ective-amount o~ a hydrotrope ~or viscosity control and cold temperature stability o~
the concentrate.
A variety o~ compatible hydrotropes are available for use in the lubricant composition including mono~unctional and poly~unctional alcohols as well CA 02224966 l998-0l-27 WO 97/~5S09 PCT~US97/041~3' glycol and glycol ether compounds. Those which have been found most useful include alkyl alcohols such as, for example, ethanol, isopropanol, and the like.
Polyfunctional organic alcohols include glycerol, hexylene glycol, polyethylene glycol, propylene glycol, sorbitol and the like.
The preferred hydrotropes are di-functional alcohols such as alkyl glycols. One compound which has ~ound heightened efficacy in stabilization of the concentrate and its use solution is hexylene glycol.
Generally, the concentration of the hydrotrope ranges ~rom about 0.1 to ~0 wt-~, and preferably about 1 to 25 wt-~ in the concentrate. In one of the more pre~erred aspects of the invention, the hydrotrope is present in a concentration ranging from about 3 wt-~ to 10 wt-~ and comprises hexylene glycol.

..

WORKING EX~MPLES
The following Working Examples illustrate the various properties, characteristics, and embodiments of the invention. However, these are not intended to be limiting of the claimed invention:
Example 1: Friction and Wear Testinq Lubricant concentrates for friction and wear testing were prepared as set forth in Table 1, by combining soft water with the hydrotrope and acid, heating to 120~F, and adding the remaining raw materials with mixing. Use solutions of these concentrates were made by combining 1000 parts tap water (5-6 grains hardness) with 2.5 parts concentrate to yield 0.25 solutions.

-CA 02224966 l998-0l-27 W 097/45~09 PCT~US97/04153 T~RT.~ _l Formulas Prepared ~or Friction and Wear Testing Raw Material 1 A ¦ 1 B ¦ 1 C ¦ I D
wt-%
C12/C14 alkyloxypropyl-l, 3-diamino propane 9.û 8.0 8.0 N-oleyl-l, 3-~ rnin~) propane 4.Q
N-coco-l, 3-~ min~l propane 4.0 Glutaric/Adipic/S~lccinic Acidl 4.0 Acetic Acid 1.8 1.8 Phosphate Ester2 18.2 Hydrotrope 7.0 10.0 10.0 10.0 Nonionic Surfactant 7.0 10.0 10.0 10.0 Soi~t Water 73.0 53.8 70.2 70.2 IDiacid mixture available from BASF Corporation as Soka~an DC~.
5 2Emphos PS 236 phosphate ester available from Witco C~hemical.
A Falex Friction and Wear Machine (Faville-LeVally Corp., Model: Pin and V-Block) ~itted with mild steel v-blocks (1137) and stainless steel pins (302) was employed to determine the fail point of lubricant use solutions. The solutions were circulated over the v-block and pin assembly at a rate of 100 ml/min.
Meanwhile, pressure on the falex was set to 50 psi for 5 minutes, then increased to 200, 250, 300, etc. at 5 minute intervals until such time as grossly erratic torque readings or sudden loss of pressure indicated galling of the pin and/or v-blocks and hence failure.
The pressure was re-set to the desired level at one minute intervals in the event that minor loss of pressure occurred. The torque, pressure, and wear as measured by tooth adjustments, were recorded each minute.

W 097/45509 PCT~US97/04153 TABT.~ 2 Friction and Wear Fail Point Determil~ation Formula AmineType Acid Source pHFail E~lapsed Point Time .
(psi) (min:sec) lAI Linear Ether Di~minPs Diacid Mixture 6.8 330 20:001131 Linear Ether Diarnines Phosphate Ester 7.3 200 6:45lC Linear E~ther Diamines Acetic 7.6 190 5:00 lD Alkyl Diamines Acetic 7.6200 5:30 'Formu~as represent the te~r.hin~; of the current invention.
Neutralization of the linear ether amines with a combination of diacids results in a reduction in friction and wear between mild steel and stainless steel. Both commercial and experimental lubricants utilizing acetic acid neutralization fail shortly after the ~ive minute equilibration at 50 psi.

Example 2. Corrosion In~ibition Lubricant concentrates were prepared as set ~orth in Table 3 by combining so~t water with the speci~ied acid and hydrotrope, warming to 120~F, and adding the remaining raw materials with mixing.

_ CA 02224966 l998-0l-27 W 097145509 PCT~US97/041~3 ' T~RT.~ 3 Fonnul~s Prepared for ~ild steel Corrosion Testir~g Raw Material 2A ¦ 2B ¦ 2C ¦2D ¦2E
wt-%
Tetradecyloxy~o~l-l, 3-diamino propane 6.0 6.0 6.0 Cl2/CIs alkyloxypropyl-1, 3-diamino ~,C 6.0 6 0 Glutaric/Adipic/Succinic Acid~ 4.0 Acetic Acid 2.2 1. I
Glycolic Acid 4 0 4 0 ph- srh~f~ Ester~ 9.1 ~dlvll~e 3.0 3.0 3.0 5.0 5.0 Nonionic Sur~actant 10.0 10.0 10.0 10.0 10.0 Corrosion Additive3 5 0 Soft Water 77.0 78.8 70.8 70.0 75.0 'Diacid mixture available from BASF Corporation as So kalan ncs.
5 2phc~srh~te ester Emphos PS 236 available from Witco.
3Corrosion addit~ve referenced below.
To test mild steel corrosion inhibition for lubricant concentrates containing various neutralizing agents, 0.25~ use solutions were prepared with 1000 parts tap water containing 5-6 grains hardness, and the use solution p~ was adjusted to 9 with dilute KOH. Pre-cleaned lx3 inch cold rolled steel (#1018) panels were immersed in the use solution such that the use solution covered half of the coupon. Corrosion of the panel and use solution clarity were assessed visually after 24 hours, and rated according to the description listed below. All testing was completed in duplicate. The samples were evaluated on the basis of the following scale.
., ~nk Solution Appearance Panel Corrosion 1 Solution unchanged No visible signs o~
corrosion - ~ ~ ~

W O 97/45509 ~5 PCT~US97/04153 2Solution slightly Very slight corrosion, discolored 1-5~ of panel surface area showing corrosion.

3 Solution discolored Moderate corrosion, 6-10~ of panel b surface area showing corroslon.

4 Solution is dark Heavy corrosion, 11-90~
amber of panel surface area showing corrosion.
T~3LE 4 Mild Steel Corrosion Testing ~esults for Formulas 2A7 2B, and 2C
20(0.25% Solutions Adjusted to pH 9, Ranked a~er 24 Hours~

Formula Constituent Co~osion Rating With 2 :Readings Solution Clarity Panel Appearance 2A Glutaric/Adipic/Succinic ~, 7 2,1 2B Acetic 3,3 3,2 2C Phosphate Ester/Acetic --,-- 2,3 To test mild steel corrosion inhibition for lubricant concentrates containing various corrosion 25 inhibitors, 0.5~ use solutions were prepared from Formulas 2D and 2E. For this evaluation the solutions were prepared by combining 5 parts concentrate with 1000 parts tap water containing 5-6 grains hardness, and the solution pH adjusted to 8 with dilute KOH. Pre-cleaned lx3 cold rolled steel (#1018) panels were i~mersed in the use solution such that the use solution covered half of the coupon. Corrosion of the panel and use solution clarity were assessed visually after ~8 hours, and rated. All testing was completed in duplicate.

_ W O 97/45509 PCT~US97/04153 T~i3LE 5 Mild Steel Corrosion Tes~ing Results for Formulas 2n and 2 (0.50% Solutions Ad~usted to pH 8, Ranked after 48 Hours) Fonnula Corrosion Additive Co~rosion Ratin~ ~ with 2 ~ 1in~.~
Solution C~larity Panel Appearance 2D AdipicAcid 1,1 2,2 2D D-isoascorbic Acid 2,2 1,2 2D Lactic Acid 3,3 1,1 2D MalicAcid 2,2 1,2 2D Oleic acid diethanolamidel 3,3 1,1 2D Sodium cocoamphophydroxy 3,3 1,1 propyl sulfonate 2E none 3,3 2,2 5 'Alkamide WRS-I 66 sold by Rhone Poulenc 2Miranol C~ sold by Rhone Poulenc.
Various corrosion inhibitors and especially the diacids provide corrosion protection against mild steel in the linear alkyl ether amine formulations.
Further, it is evident that the acidic species can be incorporated for the dual role o~ corrosion inhibitor and amine neutralizing agent, with a bene~it to production cost and e~iciency.
The above specification, examples and data provide a complete description o~ the manu~acture and use of the composition of the invention. Since many embodiments o~ the invention can be made without, departing ~rom the spirit and scope of the invention, the invention resides in the claims hereinafter appended.

Claims

1. A lubricant concentrate composition comprising:
a. an effective lubricating amount of one or more amine compounds each of said amine compounds having a formula selected from the group consisting of, R1-O-R2-NH2, R1-O-R2-NH-R3-NH2, and mixtures thereof wherein R1 is a linear saturated or unsaturated C6-C18 alkyl, R2 is a linear or branched C1 -C8 alkylene, and R3 is a linear or branched C1-C8 alkylene;
b. an anticorrosive effective amount of a corrosion inhibitor, said corrosion inhibitor comprising a dicarboxylic acid, a tricarboxylic acid or mixture thereof; and c. a detersive amount of surfactant effective to provide detergency to the composition, said surfactant selected from the group consisting of an anionic surfactant, a nonionic surfactant, a cationic surfactant, an amphoteric surfactant, and mixtures thereof wherein said concentrate has a pH ranging from about 5 to 10 and can be diluted to produce a lubricant having a pH greater than 7.

2. An aqueous lubricant composition comprising a major portion of an aqueous diluent, from about 10 ppm to 10000 ppm of at least one amine compounds having a formula selected from the group consisting of R1-O-R2-NH2, R1-O-R2-NH-R3-NH2, and mixtures thereof wherein R1 is a linear saturated or unsaturated C6-C18 alkyl, R2 is a linear or branched C1-C8 alkylene, and R3 is a linear or branched C1-C8 alkylene; an anticorrosive effective amount of a corrosion inhibitor, said corrosion inhibitor comprising a dicarboxylic acid, a tricarboxylic acid or mixture thereof; a detersive amount of surfactant effective to provide detergency upon use, wherein said surfactant is selected from the group consisting of an anionic surfactant, a nonionic surfactant, a cationic surfactant, an amphoteric surfactant, and mixtures thereof, wherein said lubricant has a pH of from about 7 to 10.

3. The composition of claim 1, wherein said amine compound is present in a concentration of about from 0.1 wt-% to 90 wt-%.

4. The composition of claim 1, wherein said amine compound is a monoamine compound and R1 is a linear C12-C16 group, and R2 is a C2-C6 alkylene group.

5. The composition of claims 1 or 2, wherein more than one amine compound is present in said concentrate, at least one of said amine compounds is a monoamine compound, R1 is selected from the group consisting of a C10-C12 alkyl group, a C14-C16 alkyl group, and mixtures thereof; and R2 is a C2-C6 alkylene group.

6. The composition of claims 1 or 2, wherein said amine compound is a diamine compound, R1 is a C12-C16 alkyl group, R2 is a C2-C6 alkylene group, and R3 is a C2-C6 alkylene group.

7. The composition of claims 1 or 2, wherein more than one amine compound is present in said concentrate, at lease one of said amine compounds is a diamine compound, R1 is selected from the group consisting of a C10-C12 alkyl group, a C14-C16 alkyl group, and mixtures thereof; R2 is a C2-C6 alkylene group and R3 is a C2-C6 alkyl group.

8. The composition of claims 1 or 2, additionally comprises a hydrotrope.

9. The composition of claim 8, wherein said hydrotrope is selected from the group consisting of glycols, alcohols, glycol ethers, and mixtures thereof.

10. The composition of claim 1 wherein said composition additionally comprises a hydrotrope and said hydrotrope comprises hexylene glycol, present in a concentration of from about 0.1 wt-% to 40 wt-%.

11. The composition of claim 1, wherein said corrosion inhibitor comprises a dicarboxylic acid present in a concentration of from about 0.05 wt-% to 25 wt-%.

12. The composition of claim 11, wherein said dicarboxylic acid is selected from the group consisting of glutaric acid, adipic acid, succinic acid and mixtures thereof.

13. The composition of claim 1, wherein said surfactant comprises a nonionic surfactant present in a concentration of from about 0.01 wt-% to 50 wt-%.

14. The composition of claim 13, wherein said nonionic surfactant has from about 1 to 40 moles of ethoxylation.

15. The composition of claim 1, wherein said concentrate is a solid.

16. The composition of claim 1, wherein said concentrate is a liquid.

17. The composition of claims 1 or 2, additionally comprising a neutralizing agent, wherein said neutralizing agent comprises an acid, said acid selected from the group consisting of an organic acid, an inorganic acid, and mixtures threreof.

18. The composition of claims 1 or 2, wherein said concentrate has a sanitizing level of antimicrobial efficacy sufficient to provide a bacterial reduction of 99.9 percent within five minutes.

19. The composition of claim 2, wherein said amine compound is present in a concentration of about 40 ppm to 5000 ppm.

20. The composition of claim 2, additionally comprises a hydrotrope.

21. The composition of claim 20, wherein said hydrotrope is selected from the group consisting of glycols, alcohols, glycol ethers, and mixtures thereof.

22. The composition of claim 21, wherein said hydrotrope comprises hexylene glycol, present in a concentration of from about 0.001 wt-% to 1 wt-%.

23. The lubricant of claim 2, wherein said corrosion inhibitor comprises a dicarboxylic acid present in a concentration of from about 1 ppm to 10000 ppm.

24. The lubricant of claim 23, wherein said dicarboxylic acid is selected from the group consisting of glutaric acid, adipic acid, succinic acid and mixtures thereof.

25. The composition of claim 2, wherein said surfactant comprises a nonionic surfactant present in a concentration of from about 0.0005 wt-% to 1 wt-%.

26. The composition of claim 25, wherein said nonionic surfactant has from about 1 to 40 moles of ethoxylation.

27. A method of lubricating a conveyor system using the diluted lubricant concentrate composition of claims 1 to 18 comprising an effective lubricating amount of one or more amine compounds, each of said amine compounds having a formula selected from the group consisting of, R1-0-R2-NH2, ~~~(1) R1-0-R2-NH-R3-NH2, ~~(2) and mixtures thereof wherein R1 is a linear saturated or unsaturated C6 - C18 alkyl, R2 is a linear or branched C1 - C8 alkylene, and R3 is a linear or branched C1 - C8 alkylene; an anticorrosive effective amount of a corrosion inhibitor , said corrosion inhibitor comprising a dicarboxylic acid, a tricarboxylic acid or mixture thereof; a detersive amount of surfactant effective to provide detergency upon dilution and use said surfactant selected from the group consisting of an anionic surfactant, a cationic surfactant, a nonionic surfactant, an amphoteric surfactant, and mixtures thereof; and wherein said composition has a pH of from about 7 to 10, said method comprising the steps of:

a. formulating the lubricant concentrate composition to have from about 0.1 wt-% to 90 wt-% of said amine compound;
b. diluting said lubricant concentrate composition with a major portion of an aqueous diluent to form a diluted lubricant comcentrate composition; and c. applying said lubricant concentrate composition to the intended surface of use.