DE112008002257T5 - Slideway lubricant compositions, processes for their preparation and use - Google Patents

Abstract

Slideway lubricant composition comprising:
a) a base oil comprising at least one isomerized base oil having a consecutive number of carbon atoms and less than 10 weight percent naphthenic carbon according to ndM,
b) 0.001 to 10 weight percent of at least one additive selected from an additive package, an oxidation inhibitor, a high pressure agent, a friction modifier, an adhesion additive, a wear inhibitor, a metal passivator, an antifoaming agent, a demulsifier and mixtures thereof;
wherein the lubricant composition contains such an amount of isomerized base oil that the composition separates from water in less than 60 minutes, as measured according to ASTM D-1401-2002.

Description

TECHNICAL AREA

The The invention generally relates to compositions which are suitable for Use as a lubricant, in particular for use as slideway lubricant, suitable.

STATE OF THE ART

A Slideway is a mechanical guide that is a machine tool to give a track surface that is independent from the extent of movement under load is stable (i.e. H. minimal bending) and a stable surface finish for constant frictional forces. machine builders have met these design goals by using slideways constructed in different configurations (horizontal, vertical, angled) and they made of several different materials (iron, Steel or plastic). Machine tools often have items produce with very fine tolerances, for example, the tolerance is at the production of a camshaft only about 1 micron. To this end the machine tool must be positioned exactly. Slideway lubricant are used to lubricate the surface on which the Machine tool is attached to allow the required positioning is relieved. This maximizes slipper track performance.

In typical applications, such as external hydraulic mounts Machine tools come into contact with polluted water, which can affect the machine performance. In slideway lubricant compositions a good separation of water is needed seriously. In the state The art usually uses demulsifying additives (or Demulsifiers), such as copolymers of ethylene oxide and propylene oxide, so that the demulsibility of a lubricant is improved. In some slideway lubricants in the prior art are the Demulsifiers rather not completely soluble, which leads to disturbing precipitates, the can enforce the machine tools.

In a number of patent publications and applications, ie US 2006/0289337 . US2006 / 0201851 . US2006 / 0016721 . US2006 / 0016724 . US2006 / 0076267 . US2006 / 020185 . US2006 / 013210 . US2005 / 0241990 . US2005 / 0077208 . US2005 / 0139513 . US2005 / 0139514 . US2005 / 0133409 . US2005 / 0133407 . US2005 / 0261147 . US2005 / 0261146 . US2005 / 0261145 . US2004 / 0159582 . US7018525 . US7083713 US Serial Nos. 11/400570, 11/535165 and 11/613936, which are hereby incorporated by reference, an alternative hydrocarbon product, such as a Fischer-Tropsch base oil, is produced from a process in which U.S. Pat Feed is a waxy feed derived from a Fischer-Tropsch synthesis. The process comprises a complete or partial hydroisomerization-dewaxing step wherein a double-acting catalyst or a catalyst capable of selectively isomerizing paraffins is used. Hydroisomerization dewaxing is achieved by contacting the waxy feed in an isomerization zone with a hydroisomerization catalyst under hydroisomerization conditions.

The Fischer-Tropsch synthesis products can be obtained by well known methods, such as the commercial SASOL ^® Fischer-Tropsch slurry phase technology, the commercial SHELL ^® middle distillate synthesis (SMDS) process, or by the non-commercial EXXON ^® Advanced Gas Conversion Process (AGC-21). Details of these and other methods are described in, for example EP-A-776959 . EP-A-668342 ; U.S. Patent No. 4,943,672 . 5,059,299 . 5,733,839 , and RE39073; and US Patent Publication No. 2005/0227866 . WO-A-9934917 . WO-A-9920720 and WO-A-05107935 , The Fischer-Tropsch synthesis product usually comprises hydrocarbons having from 1 to 100, or even more than 100 carbon atoms, and usually includes paraffins, olefins, and oxygenated products. Fischer Tropsch is a workable process that produces clean alternative hydrocarbon products.

It There is a need for a new slideway lubricant composition with excellent demulsibility, the alternative hydrocarbon products contains.

SUMMARY OF THE INVENTION

In one aspect, the invention relates to a slideway lubricant composition comprising: a) a base oil comprising at least one isomerized base oil having contiguous numbers of carbon atoms and less than 10 weight percent napthenic carbon according to ndM, b) from 0.001 to 10 weight percent of at least one Additive selected from an additive package, an oxidation inhibitor, a Extreme pressure agents, a friction modifier, an adhesion additive, a wear inhibitor, a metal passivator, an antifoaming agent, a demulsifier and mixtures thereof; wherein the lubricant composition contains such a large amount of isomerized base oil that the composition separates from water in less than 60 minutes as described in U.S. Pat ASTM D-1401-2002 is measured. In one embodiment, this sufficient amount is 95 to 99.999 weight percent.

In a further aspect, the invention relates to a method for demulsifying a slideway lubricant, the method comprising adding to a base oil commonly used to make the slideway lubricant, an amount of isomerized base oil that is so large that the lubricant will be present in less as separates from water for 60 minutes, as per ASTM D-1401-2002 wherein the isomerized base oil contains consecutive numbers of carbon atoms and less than 10 weight percent naphthenic carbon according to ndM and wherein the typical base oil is a mineral oil, an oligomer of an alpha-olefin, an ester, a synthetic hydrocarbon oil, and mixtures thereof.

In another aspect, another method of demulsifying a slideway lubricant is provided, which method comprises preparing a base oil comprising such an amount of an isomerized base oil that the lubricant separates from water in less than 60 minutes according to ASTM D-1401-2002 wherein the isomerized base oil has consecutive numbers of carbon atoms and less than 10 weight percent naphthenic carbon according to ndM.

PRECISE DESCRIPTION

The The following terms are used in the description and have Unless otherwise indicated, the following meanings.

Improved demulsibility (demulsification performance) is the ability of an oil to separate from water. The proven test for evaluating the ability of an industrial oil to separate from water is ASTM D 1401 , In this test, 40 ml of oil is mixed with 40 ml of water at 54 ° C and the time required for the residual emulsion to reduce to 3 ml or less (which is considered to be complete separation) is recorded. If complete separation is not achieved, the volume of oil, water and emulsion present is recorded.

As used here can "slideway" used interchangeably be with "slideway" or "slide track", and "Slideway Lubricant" can be interchangeable used with "Slideway Composition" or "Slideway Lubricant Composition".

"From Fischer-Tropsch "means that the product, the fraction or feed from one stage of the Fischer-Tropsch process comes from or is produced there. As used herein, "Fischer-Tropsch Base oil "interchangeable with" FT base oil "," FTBO "," GTL Base oil "(GTL: gas-to-liquid), or" by Fischer-Tropsch Derived base oil "are used.

As used herein is "isomerized base oil" for a base oil obtained by isomerization of a waxy Feed is produced.

As As used herein, a "waxy feed" includes at least 40 weight percent n-paraffins. In one embodiment For example, the waxy feed comprises more than 50 percent by weight n-paraffins. In a further embodiment they contain more than 75% by weight of n-paraffins. In one embodiment the waxy feed also has very low levels of nitrogen and sulfur, for example less than a total of 25 ppm nitrogen and sulfur together or in other embodiments less than 20 ppm. Examples of waxy feeds include slack wax, de-oiled slack wax, refined After-run oils, wax lubricant raffinates, n-paraffin waxes, NAO waxes, waxes, made in chemical plant process, waxes, derived from de-oiled petroleum, microcrystalline Waxes, Fischer-Tropsch waxes, and mixtures thereof. In one embodiment the waxy feeds have a pour point bigger 50 ° C. In another embodiment it is greater than 60 ° C.

"Kinematic viscosity" is a measurement of the flow resistance of a fluid under gravity in mm ² / s, determined by ASTM D445-06.

"Viscosity index" (VI) is an empirical, unitless number that indicates the effect of temperature change on the kinematic viscosity of the oil. The higher the VI of an oil, the lower its loading strive to change the viscosity with temperature. The viscosity index is determined according to ASTM D 2270-04 measured.

The apparent cold start viscosity simulator (CCS VIS) is a measurement in millipascal seconds, mPa · s, which measures the viscometric properties of low temperature, high shear lubricant base oils. CCS VIS is using ASTM 0 5293-04 certainly.

The boiling range distribution of base oil in weight percent is determined by simulated distillation (SIMDIS) according to ASTM D 6352-04 , "Boiling Range Distribution of Petroleum Distillates in Boiling Range from 174 to 700 ° C by Gas Chromatography".

"Noack volatility" is defined as the mass of oil, expressed as a percentage by weight, that is lost when the oil is heated at 250 ° C with a constant stream of air flowing through it for 60 min ASTM D5800-05 Method B is measured.

The Brookfield viscosity is used to determine the internal fluid friction of a lubricant during cold start operation ASTM D 2983-04 can be measured.

"Pour point" is a temperature measurement at which a base oil sample begins to flow under certain carefully controlled conditions, according to ASTM D 5950-02 can be determined.

"Autoignition temperature" is the temperature at which a fluid ignites spontaneously on contact with air itself, according to ASTM 659-78 can be.

"Ln" stands for the natural logarithm base "e."

"Traction coefficient" is an indicator of intrinsic lubricant properties, expressed as the dimensionless ratio of frictional force F and normal force N, where friction is the mechanical force resisting movement or hindering movement between sliding or rolling surfaces. The traction coefficient can be measured with an MTM traction measuring system from PCS Instruments, Ltd. with a polished ball of 19 mm diameter ( SAE AISI 52100 Steel), which is angled at 220, to a polished flat disc 46 mm in diameter ( SAE AISI 52100 Steel). Steel ball and disc are independently measured with 3 m / s mean rolling speed, 40% sliding / rolling ratio and 20 Newton load. The rolling ratio is defined as the difference between the sliding speed between the ball and the wheel, divided by the average speed of the ball and the wheel, ie rolling ratio = (Geschw.1 - Geschw.2) / ((Geschw.1 + Geschw.2) - / 2 ).

"Ongoing Number of carbon atoms "as used herein means that the base oil hydrocarbon molecules whose number of carbon atoms exceeds one Area is distributed, which includes every number of carbon numbers between the specified limits. The base oil For example, hydrocarbon molecules in the range from C22 to C36 or C30 to C60 with any number of carbon atoms in between. The hydrocarbon molecules of the Base oils differ from each other by the consecutive Number of carbon atoms, as the waxy feed also has consecutive numbers of carbon atoms. In the Fischer-Tropsch hydrocarbon synthesis reaction is the source of carbon atoms, for example CO, and the hydrocarbon molecules each become a carbon atom built up after another. Derived from crude waxy Feeds have consecutive numbers of carbon atoms. In contrast to an oil on polyalphaolefin ("PAO") base, have the molecules of an isomerized base oil a more linear structure and include a relatively long framework with short branches. The classic textbook description of a PAO is a star-shaped molecule, and in particular Tridecan is represented as three decane molecules that bind to connected to a central point. A star shaped Although molecule is theoretical, but still have the PAO molecules fewer and longer branches than the hydrocarbon molecules, which make up the base oil disclosed here.

"molecules with cycloparaffin functionality "stands for every molecule that is monocyclic or condensed is a multicyclic saturated hydrocarbon group or as one or more substituents.

"Monocycloparaffin-functional molecules" means any molecule that is a monocyclic saturated hydrocarbon group of 3 to 7 ring carbon atoms, or a molecule substituted with a single monocyclic saturated hydrocarbon group of 3 to 7 ring carbon atoms is tuiert.

"molecules with multicycloparaffin functionality "stands for every molecule that has a condensed multicyclic saturated Hydrocarbon ring group with two or more condensed Wrestling is every molecule that works with one or more condensed multicyclic saturated hydrocarbon ring groups is condensed by two or more condensed rings, or every molecule that is saturated with more than one monocyclic Hydrocarbon group substituted with 3 to 7 carbon atoms is.

molecules with cycloparaffin functionality, molecules with Monocycloparaffin functionality and molecules with Multicycloparaffin functionality is described as Percent by weight and are determined by a combination of field ionization mass spectroscopy (FIMS), HPLC-UV for aromatics, and proton NMR for Olefins, which is further fully described here.

Oxidizer BN measures the reaction of a lubricating oil in a simulated application. High values or long times for the adsorption of one liter of oxygen show good stability. Oxidizer BN can be measured with an oxygen absorber according to Dornte ( RW Dornte "Oxidation of White Oils," Industrial and Engineering Chemistry, Vol. 28, page 26, 1936 ), under 1 atmosphere of pure oxygen at 340 ° F, the time for absorption of 1000 ml of O ₂ by 100 g of oil is described. In the oxidizer BN test, 0.8 ml of catalyst per 100 g of oil is used. The catalyst is a mixture of soluble metal naphthenates that simulates the average metal analysis of used engine casing oil. The additive package is 80 millimoles of zinc bisphenylphenyl dithiophosphate per 100 grams of oil.

Molecular characterizations can be performed using prior art techniques including field ionization mass spectroscopy (FIMS) and ndM analysis ( ASTM D 3238-95 (Re-approved in 2005)). In FIMS, the base oil is characterized as alkanes and molecules with different numbers of unsaturations. The molecules having various numbers of unsaturations include, for example, cycloparaffins, olefins and aromatics. If aromatics are present in significant quantities, they can be identified as 4-unsaturations. If olefins are present in significant amounts, they can be identified as 1-unsaturations. The sum of 1-unsaturation, 2-unsaturation, 3-unsaturation, 4-unsaturation, 5-unsaturation and 6-unsaturation from the FIMS analysis minus the weight percent olefins by proton NMR and minus the weight percent aromatics according to HPLC-UV gives the Total percent by weight of molecules with cycloparaffin functionality. If the aromatics content was not measured, it was probably less than 0.1% by weight and was not included in the calculation for the total weight percent of the cycloparaffin functionality molecules. The total weight percent of molecules with cycloparaffin functionality is the sum of the weight percent of molecules with monocycloparaffin functionality and the weight percent of molecules with multicycloparaffin functionality.

The molecular weights are determined according to ASTM D2503-92 (Re-approved in 2002). The method uses the thermoelectric measurement of the vapor pressure (VPO). If the sample volume is insufficient, an alternative method of ASTM D2502-04 use; and if used, this is indicated.

The density will be according to ASTM D4052-96 (Re-approved in 2002). The sample is admitted into an oscillating sample tube, and the change in the oscillation frequency caused by the change in the mass of the tube is used together with the calibration data to determine the density of the sample.

The weight percent of olefins can be determined by proton NMR according to the steps given here. In most assays, the olefins are conventional olefins, ie, a distributed mixture of such olefin types in which hydrogen atoms are attached to the carbon atoms of the double bond, such as: alpha, vinylidene, cis, trans, and tri-substituted with a detectable allyl - to olefin-to-integral ratio between 1 and 2.5. If this ratio exceeds 3, it indicates a higher percentage of tri- or tetra-substituted olefins present, so that other assumptions in the field of analysis can be made to calculate the number of double bonds in the sample. The steps are as follows: A) Prepare a solution of 5-10% test hydrocarbon in deuterochloroform. B) recording a normal proton spectrum of at least 12 ppm spectral width and accurately plotting the axis of chemical shift (ppm), the device having such a large gain range that a signal is obtained without overloading the receiver / ADC, for example a 30 ° pulse is applied, the device has a minimum dynamic digitizing range of 65,000. In one embodiment, the device has a dynamic range of at least 260000. C) Measure Integral Intensity between: 6.0-4.5 ppm (olefin); 2.2-1.9 ppm (allyl); and 1.9-0.5 ppm (saturated). D) using the molecular weight of the test substance, determined according to ASTM D 2503-92 (Re-approved in 2002), Calculate: 1. the average molecular formula of saturated hydrocarbons; 2. the average molecular formula of olefins; 3. the total integral intensity (= sum of all integral intensities); 4. the integral intensity per sample hydrogen (= total integral / number of hydrogen atoms in the formula); 5. the number of olefin hydrogen atoms (= olefin integral / integral per hydrogen); 6. the number of double bonds (= olefin-hydrogen × hydrogens in the olefin formula / 2); and 7. the weight percent olefins by proton NMR = 100 × number of double bonds × number of hydrogen atoms in a conventional olefin molecule divided by the number of hydrogen atoms in a conventional test substance molecule. In this test, the weight percent olefins work well, according to proton NMR calculation method D, when the result of the% olefins is low, ie less than 15 weight percent.

The Weight percent aromatics in one embodiment may be measured by HPLC-UV. In one embodiment The test is performed on a Hewlett Packard 1050 Series Quaternary Gradient High Performance Liquid Chromatography (HPLC) System, coupled with an HP 1050 diode array UV-Vis detector attached to an HP Chem Station is connected. The identification of the individual Aromatic classes in the highly saturated base oil can be made on the basis of the UV spectral pattern and the elution time become. The amino acid used for this analysis is used, distinguishes aromatic molecules predominantly based on their ring number (or double bond number). Thus elute followed by the molecules with a single-ring aromatic first from the polycyclic aromatics, in order of increasing Number of double bonds per molecule. For aromatics with similar double-bond character elute those which have only one alkyl substitution on the ring, earlier as such with a naphthenic substitution. A unique one Identification of the various aromatic base oil hydrocarbons from their UV absorption spectra can be accomplished, wherein one recognizes that their maximum electron transitions all are shifted to red, compared to the pure model-compound analogues, to an extent that depends on the amount of alkyl or naphthenic substitution on the ring system. The quantification The eluting aromatic compounds can be incorporated by integration are made of chromatograms consisting of wavelengths created for each general class of connections the appropriate retention time window for this aromatic be optimized. The limits of the retention time window for each class of aromatics can be determined by taking the individual absorption spectra of the manually evaluated eluting compounds at different times and they are based on their qualitative similarity to model compound absorption spectra of the appropriate aromatic class be assigned.

HPLC-UV Calibration. In one embodiment, HPLC-UV can be used for Identification of classes of aromatic compounds even at very low levels are used, for example, multi-ring aromatics absorb usually 10 to 200 times stronger than single ring aromatics. The alkyl substitution affects the absorption 20%. The integration limits for the co-eluting 1-ring and 2-ring aromatics at 272 nm can be generated by the Perpendicular drop methods are created. Wavelength-dependent Reaction factors for each general aromatics class can first determined by creating plots after Beer's Law of pure model compound mixtures, based on the next spectral peak absorptions to the substituted ones Aromatics analogues. Weight percent concentrations of aromatics can calculated by assuming that the average molecular weight for each aromatic class approximately equal to the middle one Molecular weight for the whole oil sample is.

NMR analysis. In one embodiment, the weight percent of all molecules having at least one aromatic function in the purified monoaromatic standard can be confirmed by long-term carbon-13 NMR analysis. The NMR results can be derived from the% aromatic carbon to the% aromatic molecules (which must agree with HPLC-UV and D 2007), given that 95-99% of the aromatics in highly saturated base oils are single ring aromatics. In another test for accurately measuring low levels of all molecules having at least one aromatic function by NMR, the Standard D 5292-99 (Re-approved in 2004) procedures are modified so that a minimum carbon sensitivity of 500: 1 (according to ASTM standard practice E 386 ) with a 15-hr. continuous run on a 400-500 MHz NMR with a 10-12 mm Nalorac probe. Acorn PC integration software can be used to define the shape of the baseline and unified integration.

The extent of branching affects the number of alkyl branches in hydrocarbons. The branching and branching position can be determined by carbon-13 ( ¹³ C) NMR according to the following nine step method: 1) Identify the CH branching centers and CH ₃ branching termination points with the DEPT pulse sequence ( Doddrell, DT; DT Pegg; MR Bendall, Journal of Magnetic Resonance 1982, 48, 323ff ). 2) verifying the absence of carbon atoms that initialize multiple branches (quaternary carbon atoms) with the APT pulse sequence ( Patt, SL; JN Shoolery, Journal of Magnetic Resonance 1982, 46, 535ff .). 3) Assign the various branch carbon resonances to specific branch positions and lengths using tabulated and calculated prior art values ( Lindeman, LP, Journal of Qualitative Analytical Chemistry 43, 1971 1245fF ; Netzel, DA, et al., Fuel, 60, 1981, 307ff ). 4) Estimate the relative branching density at various carbon positions by comparing the integrated intensity of the specific carbon of the methyl / alkyl group with the intensity of a single carbon atom (equal to the total integral / number of carbon atoms per molecule in the mixture). For the 2-methyl branch where both the terminal and the branch methyl occur at the same resonance position, the intensity is divided by 2 before estimating the branching density. When the 4-methyl branching fraction is calculated and tabulated, its contribution to the 4+ methylene is subtracted so that a double count is bypassed, 5) calculating the average carbon number. The average carbon number is determined by dividing the molecular weight of the sample by 14 (the formula weight of CH ₂ ). 6) The number of branches per molecule is the sum of the branches obtained in step 4. 7) The number of alkyl branches per 100 carbon atoms is calculated from the number of branches per molecule (step 6) x 100 / average carbon number. 8) Estimate the branch number (BI) by ¹ H NMR analysis, which is illustrated as a percentage of methyl hydrogen (chemical shift range 0.6-1.05 ppm) of total hydrogen as determined by NMR in the liquid hydrocarbon Composition is estimated. 9) Estimation of the branching neighborhood (BP) by ¹³ C NMR, which is illustrated as a percentage of repeating methylene carbon atoms - 4 or more carbon atoms away from the end group or branch (exemplified by an NMR signal at 29.9 ppm) of the total carbon atoms as determined by NMR in the liquid hydrocarbon composition. The measurements can be made with any Fourier transform NMR spectrometer having, for example, a 7.0 T magnet or more. After verification by Mass Spectrometry, UV or an NMR survey that aromatic carbons are missing, the spectral width for the ¹³ C NMR studies in the area of the saturated carbon may, 0-80 ppm vs. TMS (tetramethylsilane) are restricted. Solutions of 25-50% by weight in chloroform-d1 are excited by 30 ° pulses, followed by a 1.3 second (sec) recording time. In order to minimize non-uniform intensity data, broadband proton reverse gate decoupling is used during a 6 sec delay before the excitation pulse and during recording. The samples are doped with 0.03 to 0.05 M Cr (acac) ₃ (tris (acetylacetonato) chromium (III)) as a relaxation agent, so that in any case complete intensities are observed. The DEPT and APT sequences can be performed as described in the literature with minor modifications described in the Varian or Bruker manuals. DEPT is Distortionless Enhancement by Polarization Transfer. The DEPT 45 sequence gives a signal of all carbon atoms bound to protons. DEPT 90 shows only CH carbon atoms. DEPT 135 shows CH and _CH3 ascending and _CH2 180 degrees out of phase (high to low). APT is the bound proton test known in the art. This allows all carbon atoms to be seen, but with increasing CH and CH ₃ , quaternary carbon atoms and CH _{2 are} descending. The branching properties of the sample can be determined by ¹³ C NMR, assuming in the calculations that the whole sample is isoparaffinic. The content of unsaturations can be measured by field ionization mass spectroscopy (FIMS).

In One embodiment includes the slideway lubricant composition with outstanding demulsibility a number of components, For example, optional components in a base oil matrix or base oil mixtures.

Base oil matrix component: In one embodiment, the base oil or comprises the mixture of slideway lubricant composition at least an isomerized base oil, the product itself, its Fraction or feed from a step by isomerization of a waxy feed from a Fischer-Tropsch process ("aus the Fischer-Tropsch process derived base oils ") originates or is produced in this. In a further embodiment the base oil comprises at least one isomerized base oil, that consists of a substantially paraffinic wax feed ("waxy Feed ") is produced.

Base oils derived from the Fischer-Tropsch process are disclosed in a number of patent publications, such as US Pat. No. 6080301 . 6090989 and 6165949 , and US patent publication no. US2004 / 0079678A1 . US20050133409 . US20060289337 , The Fischer-Tropsch process is one catalyzed chemical reaction in which carbon monoxide and hydrogen are converted to liquid hydrocarbons of various forms, including a light reaction product and a waxy reaction product, each being substantially paraffinic.

In one embodiment, the isomerized base oil has consecutive numbers of carbon atoms and less than 10 weight percent naphthenic carbon according to ndM. In another embodiment, the isomerized base oil prepared from a waxy feed has a kinematic viscosity at 100 ° C between 1.5 and 3.5 mm ² / s.

In In one embodiment, the isomerized base oil is used produced by a process in which hydroisomerization dewaxing carried out under such conditions that a base oil comprising: a) percent by weight of all molecules having at least one aromatic functionality less than 0.30; b) percent by weight of all molecules with at least a cycloparaffin functionality greater 10; c) a ratio of the weight percent of molecules with monocycloparaffin functionality to the weight percent of molecules with multicycloparaffin functionality greater than 20 and d) a viscosity index greater than 28 × Ln (kinematic viscosity at 100 ° C.) + 80.

In another embodiment, the isomerized base oil is prepared from a process in which the highly paraffinic wax is hydroisomerized with a medium pore size, shape selective molecular sieve having a noble metal hydrogenation component and under conditions of 600-750 ° F (315-399 ° C) , in the process, the hydroisomerization conditions are controlled such that in the wax feed the conversion of the compounds boiling above 700 ° F (371 ° C) to compounds boiling below 700 ° F (371 ° C) is between 10% and 50% Weight percent is maintained. A resulting isomerized base oil has between 1.0 and 3.5 mm ² / s kinematic viscosity at 100 ° C and less than 50 weight percent Noack volatility. The base oil comprises more than 3 weight percent molecules with cycloparaffin functionality and less than 0.30 weight percent aromatics.

In one embodiment, the isomerized base oil has a Noack volatility that is less than the amount that results from the equation: 1000 × (kinematic viscosity at 100 ° C.) ^-2.7 . In another embodiment, the isomerized base oil has a Noack volatility that is less than the amount that results from the equation: 900 × (kinematic viscosity at 100 ° C.) ^-2.8 . In a third embodiment, the isomerized base oil has a kinematic viscosity at 100 ° C of> 1.808 mm ² / s and a Noack volatility lower than the amount resulting from the equation: 1.286 + 20 (kv100) ^{-1 , 5} + 551.8 e ^-kv100 , where kv100 is the kinematic viscosity at 100 ° C. In a fourth embodiment, the isomerized base oil has less than 4.0 mm ² / s kinematic viscosity at 100 ° C, and between 0 and 100 weight% Noack volatility. In a fifth embodiment, the isomerized base oil has a kinematic viscosity between 1.5 and 4.0 mm ² / s and a Noack volatility that is less than the Noack volatility, which is calculated by the following equation: 160-40 (kinematic) Viscosity at 100 ° C).

In one embodiment, the isomerized base oil has a kinematic viscosity at 100 ° C in the range of 2.4 and 3.8 mm ² / s and a Noack volatility that is less than the amount defined by the following equation: 900 × (kinematic viscosity at 100 ° C) ^-2.8-15 ). For kinematic viscosities in the range of 2.4 and 3.8 mm ² / s, the equation: 900 × (kinematic viscosity at 100 ° C.) ^-2.8-15 ) ^gives a lower Noack volatility than the equation: 160-40 (kinematic viscosity at 100 ° C.)

In one embodiment, the isomerized base oil is prepared from a process in which the high-wax wax is hydroisomerized under conditions such that the base oil has a kinematic viscosity at 100 ° C of 3.6 to 4.2 mm ² / s, a viscosity index greater than 130 , less than 12% by weight Noack volatility, and has a pour point of less than -9 ° C.

In one embodiment, the isomerized base oil has an aniline point greater than 200 ° F and less than or equal to an amount defined by the equation: 36 × Ln (kinematic viscosity at 100 ° C, in mm ² / s) + 200.

In one embodiment, the isomerized base oil has an autoignition temperature (AIT) that is greater than the AIT defined by the following equation: AIT in ° C = 1.6 × (kinematic viscosity at 40 ° C, in mm ² / s In a second embodiment, the base oil has an AIT greater than 329 ° C and a viscosity index greater than 28 x Ln (kinematic viscosity at 100 ° C, in mm ² / s) + 100.

In one embodiment, the isomerized base oil has a relatively low traction coefficient, its traction coefficient is specifically smaller than that calculated by the following equation: traction coefficient = 0.009 × Ln (kinematic viscosity in mm ² / s) - 0.001, where the kinematic viscosity in the equation is the kinematic viscosity during the traction coefficient measurement and which is between 2 and 50 mm ² / s. In one embodiment, the isomerized base oil has a traction coefficient of less than 0.023 (or less than 0.021) when measured at a kinematic viscosity of 15 mm ² / s and a slip-roll ratio of 40%. In another embodiment, the isomerized base oil has a traction coefficient of less than 0.017 when measured at a kinematic viscosity of 15 mm ² / s and a slip-roll ratio of 40%. In another embodiment, the isomerized base oil has a viscosity index greater than 150 and a traction coefficient of less than 0.015 when measured at a kinematic viscosity of 15 mm ² / s and a slip-roll ratio of 40%.

In some embodiments, the low traction coefficient isomerized base oil also exhibits higher kinematic viscosity and higher boiling points. In one embodiment, the base oil has a traction coefficient less than 0.015, and a 50 weight percent boiling point greater than 565 ° C (1050 ° F). In a further embodiment, the base oil has a traction coefficient less than 0.011 and a 50 weight percent boiling point according to ASTM D 6352-04 greater than 582 ° C (1080 ° F).

In some embodiments, the low traction coefficient isomerized base oil also exhibits unique branching properties according to NMR such as a branching index less than or equal to 23.4, a branching neighborhood greater than 22.0, and a free carbon index between 9 and 30. In one embodiment, the base oil has at least 4 weight percent naphthenic carbon, in another embodiment at least 5 weight percent naphthenic carbon according to ndM analysis ASTM D 3238-95 (Re-approved in 2005).

In one embodiment, the isomerized base oil is prepared in a process wherein the intermediate oil isomerate comprises paraffinic hydrocarbon components, and wherein the extent of branching is less than 7 alkyl branches per 100 carbon atoms, and wherein the base oil comprises paraffinic hydrocarbon components wherein the Extent of branching is less than 8 alkyl branches per 100 carbon atoms and less than 20 weight percent is at the 2-position. In one embodiment, the FT base oil has a pour point of less than -8 ° C; at least 3.2 mm ² / s kinematic viscosity at 100 ° C; and a viscosity index greater than the viscosity index calculated by the following equation: -22 × Ln (kinematic viscosity at 100 ° C.) + 132.

In In one embodiment, the base oil comprises more as 10 weight percent and less than 70 weight percent total molecules with cycloparaffin functionality and a ratio the weight percent molecules with monocycloparaffin functionality to the weight percent of molecules with multicycloparaffin functionality greater than 15.

In one embodiment, the isomerized base oil has an average molecular weight between 600 and 1100, and an average degree of branching in the molecules between 6.5 and 10 alkyl branches per 100 carbon atoms. In another embodiment, the isomerized base oil has a kinematic viscosity between about 8 and about 25 mm ² / s and an average degree of branching in the molecules between 6.5 and 10 alkyl branches per 100 carbon atoms.

In one embodiment, the isomerized base oil is obtained from a process in which the high paraffin wax is hydroisomerized at a hydrogen feed ratio of 712.4 to 3562 liters H ₂ / liter of oil so that the base oil contains more than a total of 10 weight percent molecules with cycloparaffin Functionality, and a ratio of weight percent molecules with monocycloparaffin functionality to the weight percent molecules with multicycloparaffin functionality greater than 15 receives. In a further embodiment, the base oil has a viscosity index greater than the amount defined by the following equation: 28 × Ln (kinematic viscosity at 100 ° C) + 95. In a third embodiment, the base oil comprises less than 0, 30% by weight of aromatics; more than 10 percent by weight molecules with cycloparaffin functionality; a ratio of weight percent molecules with monocycloparaffin functionality to weight percent molecules with multicycloparaffin functionality greater than 20; and a viscosity index greater than 28 x Ln (kinematic viscosity at 100 ° C) + 110. In a fourth embodiment, the base oil also has a kinematic viscosity at 100 ° C greater than 6 mm ² / s. In a fifth embodiment, the base oil has less than 0.05 weight percent aromatics and a viscosity index greater than 28 x Ln (kinematic viscosity at 100 ° C) + 95. In a sixth embodiment, the base oil has less than 0.30 weight percent aromatics, weight percent molecules a cycloparaffin functionality greater than the kinematic viscosity at 100 ° C, in mm ² / s, multiplied by 3, and a ratio of molecules with monocycloparaffin functionality to molecules with multicycloparaffin functionality greater than 15.

In one embodiment, the isomerized base oil contains between 2 and 10% naphthenic carbon, measured according to ndM. In one embodiment, the base oil has 1.5-3.0 mm ² / s kinematic viscosity at 100 ° C and 2-3% naphthenic carbon. In another embodiment, 1.8-3.5 mm ² / s kinematic viscosity at 100 ° C and 2.5-4% naphthenic carbon. In a third embodiment, 3-6 mm ² / s kinematic viscosity at 100 ° C and 2.7-5% naphthenic carbon. In a fourth embodiment 10-30 mm ² / s kinematic viscosity of at 100 ° C and more than 5.2% naphthenic carbon.

In One embodiment has the isomerized base oil an average molecular weight greater than 475; one Viscosity index greater than 140, and less as 10 weight percent olefins. The base oil improved the air separation and low foaming properties of the mixture when incorporated into the slip lubricant composition is inserted.

In one embodiment, the isomerized base oil is a white oil, as it is in U.S. Patent No. 7,214,307 and US Patent Publication US20060016724 is disclosed. In one embodiment, the isomerized base oil is a white oil having a kinematic viscosity between about 1.5 cSt and 36 mm ² / s at 100 ° C, a viscosity index greater than the amount calculated by the equation: viscosity index = 28 × Ln ( kinematic viscosity at 100 ° C) + 95, between 5 and less than 18 weight percent molecules with cycloparaffin functionality, less than 1.2 weight percent molecules with multicycloparaffin functionality, a pour point less than 0 ° C. and a Saybolt color of +20 or more.

In one embodiment sets the slideway lubricant composition a base oil consisting of at least one of the above described isomerized base oils or mixtures thereof consists. In a further embodiment, the Composition essentially of a Fischer-Tropsch base oil. In a further embodiment, the composition is a sufficient amount of at least one isomerized base oil and 5 to 95 percent by weight of at least one other type of oil a, for example, lubricant base oils selected from lubricant base oils of group I, II, III, IV, and V, wherein the isomerized base oil in such a large Quantity is present that the slideway lubricant composition still has the desired demulsibility performance, For example, a minimum time that the resulting emulsion reduced to 3 ml or less.

Examples for base oils (other than the isomerized base oil) include conventionally used mineral oils, depending on the application synthetic hydrocarbon oils or synthetic ester oils or mixtures thereof. Mineral lubricating oil base stocks may be any conventionally refined starting materials, that of paraffinic, naphthenic and mixed basic raw materials are derived. Synthetic lubricating oils that use include esters of glycols and complex esters. Other synthetic oils, which can be used include synthetic hydrocarbons, such as polyalphaolefins; Alkylbenzenes, for example alkylate trailing fractions from the alkylation of benzene with tetrapropylene, or the copolymers of ethylene and propylene; Silicone oils, for example ethylphenylpolysiloxanes, Methyl polysiloxanes, etc., polyglycol oils, for example those produced by condensation of butyl alcohol with propylene oxide to be obtained; etc. Other suitable synthetic oils include the polyphenyl ethers, for example those having 3 to 7 ether bonds and 4 to 8 phenyl groups. Other suitable synthetic oils include polyisobutenes and alkylated aromatics such as alkylated naphthalenes.

In another embodiment, the base oil matrix of the slideway lubricant is an FT base oil having 3 mm ² / s to 5 mm ² / s kinematic viscosity at 100 ° C; 10 mm ² / s to 20 mm ² / s kinematic viscosity at 40 ° C; a viscosity index of 135-150; CCS VIS in the range of 1500-3500 mPa · s at -40 ° C, 1000-2000 mPa · s at -35 ° C; a pour point in the range of -20 and -30 ° C; a molecular weight of 400-500; a density in the range of 0.805 to 0.820; paraffinic carbon in the range of 94-97%; naphthenic carbon in the range of 3-6%; Oxidizer BN from 35 to 50 hours; a bromine index of 18 to 28 and 10 to 20 weight percent Noack volatility, measured after ASTM D5800-05 Method B.

Additional Optional Components: The slideway lubricant composition of the present invention is characterized by having excellent demulsibility and requiring little demulsifier (demulsifiers), if any. however, in some embodiments and depending on end use applications, small amounts of demulsifiers may optionally be added in the range of 0.001 to 10.0 weight percent. In one embodiment, less than 5 weight percent of at least one demulsifier is added. In a further embodiment, the added amount less than 1 weight percent. In a fourth embodiment, the amount of demulsifier present is less than 0.5 weight percent.

Non-limiting Examples of demulsifiers include, but are not limited to polyoxyalkylene alcohols, oxyalkylated alcohols, fatty acids, Fatty amines, glycols, alkylphenol-formaldehyde condensation compounds, Alkylbenzenesulphonates, polyethylene oxides, polypropylene oxides, salts and esters of oil-soluble acids, oxyalkylated Trimethylolalkanes, oxyalkylated alkylphenol-formaldehyde condensation products, Tetrapolyoxyalkylene derivatives of ethylenediamine, mixtures of alkylarylsulfonates, Polyoxyalkylene glycols, oxyalkylated glycols, esters oxyalkylierter Glycols, oxyalkylated alkylphenol resins, and polyoxyalkylene polyols, derived from ethylene oxide, propylene oxide, 1-2 and / or 2-3 butylene oxide and mixtures thereof.

In According to one embodiment, the slideway lubricant Other additives of the prior art include, for example Extreme pressure agents, adhesion (adhesive) additives, friction modifiers, Antioxidants (antioxidants), anti-wear agents, Metal passivators, antifoams, etc., in amounts in the range from 0.05 to 10 percent by weight, giving the properties of the composition be improved.

In one embodiment, an adhesion additive, such as a synthetic polymer adhesion additive having an average molecular weight of at least 1,000,000, is employed so that the lubricant composition is held on the bearing surface upon operation of the guide table. An example is "ADDCO ADDTAC ^™ ", available from Gateway Additives, Spartanburg, SC

In some applications, and without extreme pressure means, a slideway lubricant film tends to crack when used under high pressures and / or high temperatures. In one embodiment, an extreme pressure agent may be added in an amount of from about 0.05 to about 5 weight percent to the lubricant composition to avoid destructive metal contact when lubricating movable surfaces at high pressures and / or high temperatures. Examples of extreme pressure agents include sulfurized synthetic compounds such as sulfurized polyisobutylenes, thienyl derivatives, trithiones, disulfides, trisulfides, hydrogen sulfide adducts of olefins, dimethylbenzyl tetrasulfide and tetrasulfide derivatives of C ₁₈ hydrocarbons, C ₁₈ fatty acids, and C ₁₈ fatty acid alkyl and triglyceride esters. In one embodiment, the extreme pressure agent has a molecular weight of at least about 200 to 500 g / mole and a boiling point of at least about 300 ° C so as to ensure that it remains in the lubricant composition and does not evaporate in use. An example is di-tert-dodecyl trisulfide.

In In one embodiment, the composition further comprises at least one friction modifier in an amount of 0.1-3 Percent by weight, so that friction, adhesion and rattle between the Bearing surface and the guide table surface is bypassed. In one embodiment, the friction modifier is a borated glycerol monooleate ester. In a further embodiment the friction modifier is a polymeric synthetic ester with an average molecular weight of more than at least about 200,000, for example carboxylic esters; Esters of Monocarboxylic acids and glycerin; Esters of dimer acids and monohydric alcohols; Esters of glycerol and monocarboxylic fatty acids; Esters of monocarboxylic fatty acids and polyhydric alcohols; and esters of dicarboxylic acids and polyhydric alcohols.

In One embodiment contains the composition at least one of the aforementioned additives in a mold an additive package formulated for slideway lubricants becomes. Examples are additive packages from Elco Corporation, Cleveland, OH.

Production method: The additives used to formulate the compositions can be individually or in different subcombinations be mixed in the base oil matrix. In one embodiment All components are simultaneously mixed with an additive concentrate mixed (i.e., additives and a diluent, such as a hydrocarbon solvent). The use of a Additive concentrate benefits from mutual compatibility, which is achieved by combining the ingredients, if it is is in the form of an additive concentrate.

In In another embodiment, the composition prepared by mixing the base oil with the or optional additives at a suitable temperature, for example about 60 ° C until homogenous.

Applications: In one embodiment, the composition becomes slideway lubricant used for lubricating machine tool paths, flat bearings, slide rails and guides, for example for lubricating the moving guideway of a machine tool. Its main functions are abrasion and corrosion protection, as well as the reduction of static and dynamic friction between machine tool and base. It can be used on all horizontal and vertical slideways where a high quality demulsifying lubricant is to be used for slipper protection and with extended durability.

In In one embodiment, the composition is particular suitable for use in cutting processes, in elimination of bucking and protecting slide tracks from wear and tear Corrosion. In another embodiment, the composition used in applications that use a combination of slideway and Require hydraulic fluid power.

Properties: The slideway lubricant composition according to the invention is characterized in that it has excellent demulsibility, and requires little demulsifying additive, if any. In one embodiment, the slideway lubricant composition contains such a large amount of isomerized base oil that the composition has excellent demulsibility over time, ie the separation, ie, up to 3 ml or less, is completed in less than 60 minutes, as described in U.S. Pat ASTM D-1401-2002 measured at 54 ° C. In a second embodiment, the slideway lubricant of the present invention has complete separation in less than 45 minutes at 54 ° C. In a third embodiment, the time to complete the separation is less than 30 minutes at 54 ° C. In a fourth embodiment, the complete separation time is less than 15 minutes at 54 ° C.

In one embodiment, the slideway lubricant composition contains such an amount of isomerized base oil that the composition exhibits excellent demulsibility over time such that the separation (ie, to 3 ml or less) is completed in less than 60 minutes, as described in U.S. Pat ASTM D-1401-2002 measured at 82 ° C, for oils with kinematic viscosities at 40 ° C greater than 90 cSt. In a second embodiment, the slideway lubricant of the invention has complete separation in less than 45 minutes at 82 ° C for oils with kinematic viscosities at 40 ° C greater than 90 cSt. In a third embodiment, it takes less than 30 minutes at 82 ° C. for oils with kinematic viscosities greater than 90 cSt at 40 ° C. until complete separation. In a fourth embodiment, it takes less than 15 minutes at 82 ° C. for oils with kinematic viscosities greater than 90 cSt at 40 ° C. until complete separation.

In One embodiment is a slideway lubricant composition with a base oil matrix consisting essentially of a isomerized base oil, such as one from Fischer-Tropsch derived base oil from a waxy feed characterized in that they have very desirable low sulfur levels of less than 1 ppm, and so not to bacterial growth and odor contributes.

In In one embodiment, the composition is sufficient Machine tool and pneumatic tool manufacturers, including, but not limited to Cincinnati Milacron specifications from P47, P50 and P53 for grades 68, 220 and 32.

In one embodiment, the slideway lubricant composition having a base oil matrix consisting essentially of an isomerized base oil, such as a Fischer-Tropsch derived base oil, exhibits OECD 301 D levels in the range of inherently biodegradable> 30% too easily biodegradable> 90%. In one embodiment, the slideway lubricant composition having a base oil matrix having a kinematic viscosity at 40 ° C of <100 mm ² / s (H) exhibits a biodegradability of about 30% according to OECD 301D. In a second embodiment, the composition having a base oil matrix having a kinematic viscosity at 40 ° C of <40 mm ² / s (M) exhibits a biodegradability of about 40% according to OECD 301D. In a third embodiment, the composition having a base oil matrix having a kinematic viscosity at 40 ° C of <8 mm ² / s (L) exhibits a biodegradability of> = 40% according to OECD 301D. In a fourth embodiment, the composition with a base oil matrix having a kinematic viscosity at 40 ° C of <11 mm ² / s exhibits a biodegradability of about 80% according to OECD 301D. In a fifth embodiment, the composition having a base oil matrix having a kinematic viscosity at 40 ° C of <6 mm ² / s exhibits a biodegradability of> 93% according to OECD 301D.

In one embodiment, the slideway lubricant composition has a kinematic viscosity at 40 ° C in the range of 10 to 250 mm ² / s, a kinematic viscosity at 100 ° C in the range of 6 to 20 mm ² / s, a viscosity index in the range of 145 to 160, a COC flash point of at least 200 ° C, a pour point in the range of -5 to -30 ° C.

EXAMPLES. The following examples are given as non-limiting illustrations of the aspects of the invention. Unless otherwise indicated, the components in the examples are as follows (and expressed in weight percent in Table 1):
MGTL and HGTL are FTBO base oils from Chevron Corporation, San Ramon, CA. The properties of the FTBO base oils used in the examples are shown in Table 2.
Ergon ^™ Hygold 100 and Ergon ^™ 12000 Pale Oil are highly hydrotreated heavy naphthenic distillates (Group V) from Ergon Refining, Inc.
Citgo ^™ 325N and Citgo ^™ 650N are highly refined solvent-grade oils from Citgo Petroleum Corporation, Tulsa, OK.
Star ^TM 6 and Star ^™ 12 are Group II base oils from Shell Lubricants.
[086] SynFuid ^™ 8 cSt and SynFluid ^™ 40 cST are polyalphaolefin (PAO) oils from Chevron Corp.
Additive X is an inactive sulfurized fatty ester and extreme pressure lubricity additive commercially available from various sources.

The data in Table 1 established that Example 5, which illustrates one embodiment of the slideway lubricant composition of the present invention, provides better water separation performance (measured according to U.S. Pat ASTM D-1401-2002 ) compared to compositions of Examples 1-4 which comprise the base oils of the prior art. Table 1 Example 1 Group V Example 2 Group 1 Example 3 Group 2 Example 4 PAO Example 5 FTBO Ergon Hygold 100 55.59 - - - - Ergon L2000 Light oil 39.41 - - - Citgo 325N - 45.61 - - - Citgo 650N - 49.39 - Star 6 - - 56.74 - - Star 12 - - 38.26 - - Synfluid 8 cSt - - - 82.26 - SynFluid 40 cSt - - - 12.74 - MGTL - - - - 46.76 HGTL - - - 48.24 Additive X 5 5 5 5 5 Total 100 100 100 100 100 Kin. Visc. @ 40 ° C, cSt 64.11 63.11 64.93 64.48 63.81 Water separability @ 54 ° C oil / water / emulsion, ml time, min 3/4/73 30 34/23/23 30 3/4/73 30 29/25/26 30 38/39/3 30 Table 2 properties MGTL HGTL Kinematic viscosity @ 40 ° C, cSt 37.92 99.38 Kinematic viscosity @ 100 ° C, cSt 7129 14.84 viscosity Index 153 156 Cold start viscosity @ -25 ° C, cP 2,200 13.152 Pour point, ° C -20 -12 ndm Molecular weight, g / mol (VPO) 540 697 Density, g / ml 0.8222 0.8317 refractive index 1459 1.4636 Paraffinic carbon,% 95.47 93.44 Naphthenic carbon,% 4:53 6:56 Aromatic carbon,% 00:00 00:00 Oxidizer BN, Std. 42.07 35.27 Sulfur, ppm <2 <1 Nitrogen, pm <0.1 <0.1 Noack,% by weight 2:49 1 COC flash point, ° C 258 210 SIMDIST TBP (% by wt.), F TBP @ 0.5 805 879 TBP @ 5 836 935 TBP @ 10 850 963 TBP @ 20 869 997 TBP @ 30 884 1021 TBP @ 40 897 1042 TBP @ 50 913 1060 TBP @ 60 930 1079 TBP @ 70 947 1099 TBP @ 80 973 1122 TBP @ 90 1004 1153 TBP @ 95 1033 1175 TBP @ 99.5 1078 1219 FIMS saturated 73.1 69.7 1 unsaturation 26.5 29.6 2 unsaturation 0.2 0.7 3 unsaturation 0 0 4 unsaturation 0 0 5 unsaturation 0 0 6 unsaturation 0.2 0 % Olefins according to proton NMR 1:38 2

For the purposes of this specification and the appended claims, unless otherwise indicated, all numbers expressing amounts, percentages or ratios and other numbers are intended to be construed te used in the description and in the claims are to be understood to be modified in all cases by the term "about". Thus, unless otherwise specified, the numerical parameters disclosed in the following description and appended claims are approximations that may vary depending on the desired properties desired to be achieved with the present invention, and / or the accuracy of Device for measuring the value so that the standard error deviation for the device or method used to determine the value is recorded. The use of the term "or" in the claims is intended to mean "and / or" unless it is expressly intended to mean alternatives only, or the alternatives are mutually exclusive, although the disclosure supports a definition that includes only alternatives and "and / or "Concerns. The use of the term "a" or "an" in connection with the term "comprising" in the claims and / or the description means "a", however, it also agrees with the meaning of "one or more", "at least one "And" one or more than one ". All of the areas disclosed here also include the endpoints and are independently combinable. Unless stated otherwise, individual elements should generally be present in the plural and vice versa, without the generality being lost. As used herein, the term "comprising" and its grammatical variants are not intended to be limiting, such that the listing of articles does not preclude other similar objects that may be used instead of or in addition to the listed items.

It It is suggested that every aspect of the invention is related with an embodiment according to the invention is discussed with respect to another embodiment the invention can be realized or exercised. Corresponding Any composition of the invention may or may not be the result in any method or method of the invention. This patent uses examples by which the invention disclosed, including the best way, and also for any expert to carry out the invention and can use. The patentable protection range is due to the Claims defined and may include other examples, which are familiar to the expert. Such other examples should be within the scope of the claims, if they have structural elements other than the exact one Text of the claims differ, or if they are equivalent structural elements with insubstantial differences from the exact wording of the claims exhibit.

SUMMARY

A slideway lubricant composition is provided. The composition comprises such a large amount of isomerized base oil having consecutive numbers of carbon atoms and less than 10 weight percent of naphthenic carbon according to ndM, that the composition separates from water in less than 60 minutes at 54 ° C, as described in U.S. Pat ASTM D-1401-2002 is measured. In one embodiment, the composition contains minor demulsifying additives, if any. In another embodiment, the composition is sufficient for machine tool and pneumatic tool manufacturers, including, but not limited to, Cincinnati Milacron specifications for P47, P50, and P53 grades 68, 220, and 32.

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• US 2006/0289337 [0004]
• US 2006/0201851 [0004]
• US 2006/0016721 [0004]
• US 2006/0016724 [0004]
• US 2006/0076267 [0004]
• US 2006/020185 [0004]
• US 2006/013210 [0004]
• US 2005/0241990 [0004]
• US 2005/0077208 [0004]
• US 2005/0139513 [0004]
• US 2005/0139514 [0004]
• US 2005/0133409 [0004]
• US 2005/0133407 [0004]
• US 2005/0261147 [0004]
• US 2005/0261146 [0004]
• US 2005/0261145 [0004]
• US 2004/0159582 [0004]
• - US 7018525 [0004]
• - US 7083713 [0004]
• - EP 776959 A [0005]
• - EP 668342 A [0005]
• US 4943672 [0005]
• - US 5059299 [0005]
• US 5733839 [0005]
• US 2005/0227866 [0005]
• - WO 9934917 A [0005]
• - WO 9920720 A [0005]
• - WO 05107935 A [0005]
• - US 6080301 [0042]
• - US 6090989 [0042]
• US 6165949 [0042]
• US 2004/0079678 A1 [0042]
• US 20050133409 [0042]
• US 20060289337 [0042]
• US 7214307 [0060]
• US 20060016724 [0060]

Cited non-patent literature

• ASTM D-1401-2002 [0007]
• ASTM D-1401-2002 [0008]
• ASTM D-1401-2002 [0009]
• ASTM D 1401 [0011]
• - ASTM D445-06. [0016]
• ASTM D 2270-04 [0017]
• ASTM 0 5293-04 [0018]
• ASTM D 6352-04 [0019]
• ASTM D5800-05 [0020]
• ASTM D 2983-04 [0021]
• ASTM D 5950-02 [0022]
• - ASTM 659-78 determined [0023]
• SAE AISI 52100 [0025]
• SAE AISI 52100 [0025]
• - RW Dornte "Oxidation of White Oils," Industrial and Engineering Chemistry, Vol. 28, page 26, 1936 [0031]
• ASTM D 3238-95 [0032]
• ASTM D2503-92 [0033]
• ASTM D2502-04 [0033]
• ASTM D4052-96 [0034]
• ASTM D 2503-92 [0035]
• Standard D 5292-99 [0038]
• - ASTM Standard Practice E 386 [0038]
• - Doddrell, DT; DT Pegg; MR Bendall, Journal of Magnetic Resonance 1982, 48, 323ff [0039]
• - Patt, SL; JN Shoolery, Journal of Magnetic Resonance 1982, 46, 535ff [0039]
• Lindeman, LP, Journal of Qualitative Analytical Chemistry 43, 1971 1245fF [0039]
• Netzel, DA, et al., Fuel, 60, 1981, 307ff. [0039]
• ASTM D 6352-04 [0052]
• ASTM D 3238-95 [0053]
• ASTM D5800-05 [0063]
• ASTM D-1401-2002 [0075]
• ASTM D-1401-2002 [0076]
• ASTM D-1401-2002 [0082]
• ASTM D-1401-2002 [0085]

Claims (26)

Slideway lubricant composition comprising: a) a base oil containing at least one isomerized base oil with consecutive number of carbon atoms and less than 10 weight percent comprises naphthenic carbon according to n-d-M, b) 0.001 to 10 weight percent of at least one additive selected from an additive package, an oxidation inhibitor, an extreme pressure agent, a friction modifier, an adhesion additive, a Wear inhibitor, a metal passivator, an antifoam agent, a demulsifier and their mixtures; the lubricant composition contains such a large amount of isomerized base oil, that the composition separates from water in less than 60 minutes, as measured according to ASTM D-1401-2002. A composition according to claim 1, wherein the demulsifier in an amount of less than 1% by weight. A composition according to claim 1, wherein the demulsifier in an amount of less than 0.5% by weight. A composition according to claim 1, wherein composition separates from water in less than 45 min at 54 ° C, as is measured according to ASTM D-1401-2002. A composition according to claim 2, wherein the composition in less than 30 min at 54 ° C separates from water as it measured according to ASTM D-1401-2002. A composition according to claim 3, wherein the composition in less than 15 min at 54 ° C separates from water as it measured according to ASTM D-1401-2002. A composition according to claim 1, wherein the sufficient Amount of isomerized base oil 95 to 99.999 percent by weight is. A composition according to claim 1, wherein the base oil In addition, at least one substance from a mineral oil, a Oligomer of an alpha-olefin, an ester, a synthetic hydrocarbon oil, and their mixtures. A composition according to claim 8, wherein the base oil From 5 to 95% by weight of at least one substance from one Mineral oil, an oligomer of an alpha-olefin, an ester, a synthetic hydrocarbon oil, and mixtures thereof includes. A composition according to claim 1, wherein the isomerized Base oil is a base oil derived from Fischer-Tropsch is made of a waxy feed, and an average molecular weight between 600 and 1100, as well a mean degree of branching in the molecules between Has 6.5 and 10 alkyl branches per 100 carbon atoms. A composition according to claim 1, wherein the composition at least one of the Cincinnati Milacron specifications of P47, P50 and P53 for grades 68, 220 and 32 met. A composition according to claim 1, wherein the isomerized Base oil between 0 and 100 weight percent Noack volatility having. The composition of claim 1, wherein the isomerized base oil has an auto-ignition temperature (AIT) greater than the amount defined by: 1.6 × (kinematic viscosity at 40 ° C, in mm ² / s) + 300. A composition according to claim 1, wherein the isomerized Base oil an autoignition temperature (AIT) greater than 329 ° C and a Noack volatility which is less than the amount defined by: 160-40 (kinematic viscosity at 100 ° C). The composition of claim 1, wherein the isomerized base oil has a viscosity index greater than 28 x Ln (kinematic viscosity at 100 ° C, in mm ² / s) +300. A composition according to claim 1, wherein the isomerized Base oil is a ratio of the weight percent molecules with monocycloparaffin functionality to weight percent Molecules with multicycloparaffin functionality of more than 15. A composition according to claim 1, wherein the isomerized Base oil is produced from a process in which the high-wax wax is hydroisomerized with a shape-selective Molecular sieve of medium pore size, comprising a noble metal hydrogenation component, as well as under conditions of about 600 ° F to 750 ° F and wherein the isomerized base oil less than 50 weight percent Noack volatility. A composition according to claim 1, wherein the isomerized Base oil has a viscosity index that is larger is defined as the amount defined by: 28 × Ln (kinematic Viscosity at 100 ° C.) + 95. The composition of claim 1, wherein the isomerized base oil has a kinematic viscosity at 100 ° C of> 1.808 mm ² / s and a Noack volatility that is less than the amount calculated by: 1.286 + 20 (kv100) e ^-kv100 + 551.8 e ^-kv100 , where kv100 is the kinematic viscosity at 100 ° C. A composition according to claim 1, wherein the isomerized Base oil containing more than 3 percent by weight molecules Cycloparaffin functionality and less than 0.30 weight percent Has aromatics. A composition according to claim 1, wherein the isomerized Base oil more than 10 percent by weight and less than 70 Weight percent of total molecules with cycloparaffin functionality having. The composition of claim 1, wherein the isomerized base oil has a traction coefficient of less than 0.023 when measured at a kinematic viscosity of 15 mm ² / s and a slip-roll ratio of 40%. Method for demulsifying a slideway lubricant, the method comprising: adding to one usually base oil used to make a slideway lubricant such a large amount of isomerized base oil that the lubricant in less than 60 min at 54 ° C of Water separates as measured according to ASTM D-1401-2002 wherein the isomerized base oil is consecutive numbers Carbon atoms and less than 10 weight percent naphthenic Has carbon according to n-d-M. The method of claim 23, wherein the base oil, usually for the production of slideway lubricant is used, a base oil of Group I, Group II, group III or Group IV. Method for demulsifying a slideway lubricant, the method comprising producing a base oil, such a large amount of isomerized base oil includes that the lubricant in less than 60 min at 54 ° C. separates from water as per ASTM D-1401-2002 with the isomerized base oil being continuous Number of carbon atoms and less than 10 weight percent naphthenic Has carbon according to n-d-M. The method of claim 26, wherein the method in addition, the step comprises mixing from 0.001 to 10% by weight at least one additive selected from an additive package, an oxidation inhibitor, a high pressure agent, a friction modifier, an adhesion additive, a wear inhibitor, a metal passivator, an antifoam agent, a demulsifier and their mixtures, in the base oil.