TW200835786A - Lubricating composition - Google Patents

Abstract

The present invention aims to offer a lubricating composition with excellent heat resistance, mechanical stability, water resistance, corrosion resistance, load resistance and flame resistance. To this end the present invention suggests that from 2 to 68% by weight of tricalcium phosphate relative to the total composition is added to a base oil, which may be a mineral oil and/or a synthetic oil. Surfactants are further added, and the whole is thoroughly mixed and kneaded to give a semi-solid lubricating composition. For the surfactants, non-ionic surfactants are most suitable, and fatty acid esters such as glycerine fatty acid esters, sorbitan fatty acid esters and sucrose fatty acid esters may be used. The amount used is from 0.2 to 18% by weight relative to the total composition.

Description

200835786 IX. Description of the invention: [Technical field to which the invention pertains] In particular, the invention relates to an improvement in water repellency and resistance to a lubricating composition, which has excellent heat resistance, mechanical stability, load resistance, corrosion and stagnation. A semi-solid lubricating composition of flame. [Prior Art]

In the automotive industrial towel, the lubrication composition used in constant velocity joints, bearings, gears, etc., has been concerned with heat resistance, mechanical stability, and load resistance due to the high performance of the field and the demand for delicate and light weight. There is a strong demand for high quality products in terms of sex and anti-corruption. In order to meet this demand, a grease composition using tricalcium phosphate as a thickener has been proposed. See 曰本早公开专利197072 (1995). The grease composition using the tricalcium phosphate as a thickener has a high dropping point and excellent heat resistance, and its performance in terms of mechanical stability and load resistance is also excellent from a general temperature to a high temperature. They are currently considered to be one of the better lubricating compositions. These oil and fat compositions can fully exhibit their intended effects in an environment that is not in contact with water; however, severe corrosion can occur in environments that are exposed to large amounts of water, such as in papermaking plants or iron and steelmaking plants. The oil is separated from the powdered tricalcium phosphate constituting the thickener. The structure of the grease decomposes and eventually loses its function as a grease', making it impossible to use in this environment. Also in chemical operations (baking and finishing operations and iron and steelmaking operations), this manufacturing or handling process is carried out at high temperatures and sparks are scattered during these manufacturing and handling processes, which causes heating to high temperatures. The risk of contact with grease and burning it in 200835786 2 In order to prevent this fire, this grease should have as much flame retardancy as possible. ::, use the most stringent iron and refining conditions in full sliding conditions: quantity = lubrication performance needs to meet three elements · a lot of heat, important and what to live. Many of these have become examples of problems, and they are known to stick to the feed conduit or the roller bearing oil-filled nipple, charring, softening and leaking in the bearing. Therefore, thunderstorms

And: = extremely high temperature and hardened to ensure that there is no blockage in the distribution duct, and birth. And leaking out of the bearing and the rot (due to insufficient water resistance), the hair is smashed to the ancient times, and the risk of igniting from the gestation of the glutinous gluten There may be more stagnation in order to prevent fire. The present invention provides a kind of right-handed &t twin; "good heat resistance, mechanical stability, anti-beauty, corrosion resistance and water repellency overcome all of these problems. Performance lubricating composition, such that an aluminum hydrazine XS can be obtained by the present invention, which has excellent heat resistance and mechanical properties because of the mineral acid and/or biting agent. , Dingkouguang) and the addition of interface activity are waterproof and anti-corrosion. R and load resistance, and the use of the above-mentioned tricalcium phosphate ratio from 2 to 68% by weight. The total composition of the lubricating composition is not The ionic surfactant is particularly suitable for use in the following fatty acid (IV) and the surfactant, ^ combination glycerin fatty acid ester 7 200835786

The substance is sorbitan/sugar alcohol fatty acid _ and sucrose fatty acid vinegar. The use ratio of the dough (four) agent is preferably from 0.2 to 18% by weight based on the total composition of the lubricating composition. The urea compound can be used as a thickener together with the above-mentioned dish acid trisole, and can extend bearing life and improve durability. It is preferable that the composition of the pot/with the lubricating composition is not more than 8% by weight.

:: Ben: The lubricating composition of Ming has excellent heat resistance, mechanical stability, and its resistance to corrosion, water repellency and stagnation. It can also cause substantial improvement in the high temperature life of bearings. Therefore, it can be used in environments where it is subjected to a large amount of heat, and can also be effectively used in contact with water (such as a paper making factory and iron and steel making plants) without causing aphid 0 meat to be used in the lubricating composition of the present invention. The base oil is not particularly limited, and a mineral oil and a synthetic oil or a suitable mixture thereof whose viscosity is normally used in the viscosity range of the lubricating oil (纟1〇〇.. (4) square mm/sec) can be used. In addition, 疋 can be used (alone or as a mixture) of the base oil belonging to the group j, group π, group πι, group I temple of the Apj (American Petroleum Association) base oil type. The Group I base oil includes, for example, a stone obtained by a combination of suitably using a suitable refining method such as solvent refining, hydrorefining, and dewaxing associated with the rhodium oil fraction obtained by atmospheric distillation of crude oil. Mineral oil. The group base oil includes, for example, a paraffinic mineral oil obtained by suitably using a combination of a suitable refining method (such as hydrorefining and dewaxing associated with a lubricating oil fraction obtained by atmospheric distillation of crude oil). . Group basis ^ 200835786 by the hydrogen refining method "talk - ^ as the Gulf Company method" refining with a total sulfur content is less; 10 ppm and aromatic content below 5%, so suitable for this invention. Group III base oils and such as ττ # group,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, Refining the stone of the clothing, obstructing the oil, and the grain-hunting method by the Is ode wax method (J: dewaxing and replacing with isoalkane, by the demagnetization method 4 ^ 9 by dewaxing method Wax) refined base oil, and

Mobil is used to increase the base oil refined by several methods. These are also suitable for use in the present invention. As an example of the synthetic oil, there may be mentioned a polyolefin, a dibasic acid, a ruthenium (4 such as dioctyl sebacate), a polyol ester oil, an alkylbenzene, a base. Naphthalenes, polyphenols, polyoxyethylene oxides, polyoxyethylene glycol esters, H-emulsified olefinic ethers, polyphenyl-based, dialkyl-based diphenyl scales, fluorine-containing compounds (perfluoropolyethers) , fluorinated polyolefins) and polyoxygenated oils. The above polyolefins include polymers of various olefins or hydrates thereof. As the olefin, as the examples, there may be mentioned ethylene, propylene, butyl, ruthenium and osmium having five or more gems instead of α-olefins. In the production of polyolefins, one of the above-mentioned olefinic species may be used alone or two or more kinds may be used in combination. Particularly suitable polyolefins are referred to as poly-α-olefins (ρΑ〇). These are the base oils of Group IV. GTLs (gas-to-liquid derived base oils) synthesized by the Fisher-Tropsch method from converting natural gas to liquid fuel have very low sulfur and aromatic content (with refining from crude oil) The mineral oil base oils are comparatively) and have a very high paraffin wax composition ratio, so that 9 200835786 has excellent oxidation stability, and because they also have extremely small evaporation loss, which is suitable as the base oil for the present invention. For the tricalcium phosphate used in the present invention, ca3(p〇4)2' may be used but generally any chemical structure having a (iv) lime composition (which may be expressed as [Ca3(p04)2]3) may be used. Ca(OH)2). Regardless of the following, the amount contained in the present invention has been referred to, and it is regarded as a reference to the weight of [Ca3(P〇4)2]3Ca(OH)2.

This phosphoric acid is added to the aforementioned base oil in an amount of from 2 to 68% by weight, based on the total composition of the lubricating composition, but preferably from 41 to weight. /. And a better amount from 4...5 wt%. If the amount of the acid-filled three in the blend is less than 2% by weight, the lubricating composition softens without T maintaining the hardness in a suitable semi-solid state. If the blending amount exceeds Μ% by weight, the lubricating composition becomes hard and does not exhibit a slippery semi-solid state, making the production too difficult. The surfactant is used together with the three dances. These surfactants are preferably nonionic surfactants. In particular, fatty acid vinegar type surfactants can be used. These fatty acid ester type interface activities include, for example, glycerin fatty acid brewing, sorbitan fatty acid esters, and sucrose fatty acid esters. The fatty acid used therein is preferably a saturated or unsaturated fatty acid having 12 to 22 carbons. They can be used singly or in a mixture. As the examples of the aforementioned glycerin fatty acid esters, there may be mentioned monoglyceride stearate 'monoglyceride monooleate, and monoglyceride of stearic acid and oleic acid. 200835786 Similarly, as examples of sorbitan fatty acid esters, there may be mentioned sorbitan monolaurate, sorbitan monopalmitate, sorbitan monostearate, singly Oleic acid sorbitan, sorbitan distearate and sorbitan trioleate. As examples of sucrose fatty acid esters, mention may be made of sucrose palmitate and sucrose stearate. These surfactants can also be used in a suitable mixture. • The amount of each surfactant used is from 〇.2 to 18% by weight relative to the total composition of the lubricating composition, but the preferred amount is from 1 to 15% by weight and more from 2 to 1 Torr and 1% by weight. If the amount of these surfactants in the total composition is too large, the effect is the same or even reversed. When the lubricating composition of the present invention is produced, the desired composition can be obtained according to a usual method by adding the aforementioned tricalcium phosphate and one or more surfactants to the base oil, heating (if appropriate) and stirring. Then, it is sufficiently kneaded using, for example, a three-roll mill. _ The above dicalcium phosphate is hardly soluble in water. In a grease containing only a base oil and tricalcium phosphate, when the fat is mixed with water, the oil structure is normally destroyed within about 30 minutes, and the gelled structure cannot be maintained. In the lubricating composition of the present invention, the surfactant is actually added, and even when water is added to the lubricating composition, a degree of stability of 5 to 60% by volume of the water can be maintained. At the same time, it is kept under the fine dispersal, so that the gelled structure can be maintained by this method without destroying the semi-solid structure. This type differs from water-insoluble emulsions made from soap (such as sodium soap or potassium soap) 11 200835786 because it is made into a stable water-in-oil dispersion, from which it can be inferred. Most of the hardness of the object is not full. Knife and 7 shadow Urea compound can be used together with the aforementioned tricalcium phosphate as a thickener. A lubricating composition using a diurea compound, a tetraurea compound, and other urea compounds as a thickener generally has excellent heat resistance properties, and by combining these with tricalcium phosphate, it is possible to produce not only heat resistance and water resistance but also: A lubricating composition having an extended bearing life and excellent durability at high temperatures. The amount of these urea compounds used is not more than 8 weights per total of the total composition. . These urea compounds can be gargle with tricalcium phosphate in a suitable ratio, but strontium generally requires a larger amount of tricalcium phosphate. This lubricating composition can be formed by mixing these urea compounds together with tricalcium phosphate, a surfactant, and a base oil. The lubricating composition can also be mixed by appropriate mixing

It is mainly composed of a lubricating composition containing a squaric acid-like surfactant and a lubricating composition mainly comprising a urea compound. In addition to the above-mentioned composition, the lubricating composition may be used in combination with an additive such as an antioxidant, an anti-corrosion agent, an extreme pressure additive, an anti-wear agent, and a solid lubricant. [Embodiment] The method of re-expanding the drumstick-13 is more limited than the following. However, the present invention is not limited by the following examples by way of example. 12 200835786 A base oil, a phytic acid #5, and a surfactant as shown below were incorporated into the compositions shown in Tables 1 and 2. After the samples were added to the test pot, they were heated to 1 Torr under turbulence (TC. Then, processed in a three roll mill to provide a uniform consistency. This provided lubrication as shown in Examples 1-3. Compositions In a similar manner, the blend compositions as shown in Table 3 were used to obtain the lubricating compositions as shown in Comparative Examples 1-4.

1. Base oil (1) Mineral oil: lithographic barrier oil with a viscosity of 33 mm 2 / sec under the loot (2) Poly-α-olefin oil: having a viscosity of 4 〇 mm 2 / sec under i 〇 (rc) Poly-α - dilute hydrocarbon oil (3) Ether oil: alkyl diphenyl ether oil with a viscosity of 13 mm 2 / sec at 100 t: (4) Ester oil: viscosity of 6 mm 2 / sec at 100 t: Polyol ester oil 2·Tricalcium phosphate: [Ca3(P04)2]3Ca(0H)2 3. Surfactant (1) Stearic acid, oleic acid monoglyceride (2) lauric acid monolaurate Alcohol (3) Tristearate sorbitan (4) Trioleic acid sorbitan i i Example 5: Run 湣 New or & 900 1 refined mineral oil (which is in 1 (10) ◦ 之 147 147 147 147 147 147 147 147 2008 2008 2008 2008 2008 2008 2008 2008 2008 2008 2008 2008 2008 2008 2008 2008 2008 2008 2008 2008 2008 2008 147 147 147 147 147 147 147 147 147 147 147 147 147 147 147 147 147 147 147 147 147 147 147 147 147 147 147 88 g) reaction in diphenylmethane-4,4,-diisocyanate, then adding 莫8 mol (14·g) of laurylamine to 0.04 mol (1〇·08 g) Diphenylmethane_4 monoisocyanate and reacted with it. Add 2 weights (20 g) of a diphenylamine antioxidant, and a lubricating composition obtained by uniformly dispersing and treating in a three-roll mill. The amount of the urea compound contained was 1% by weight. • Examples 14-17 Example 14 The lubricating composition contained in Example 1 was used in an amount of 2% by weight of a diphenylamine type antioxidant used in Comparative Example 5. Example 1 5- 17 is a lubricating composition containing The compositions of Example 14 and Comparative Example 5 were mixed in the proportions shown in Table 4. The lubricating compositions of Examples 1-13 and Comparative Examples 1-4 were tested for penetration, drop point, water repellency, and mechanical stability. Testing for properties and load resistance. The lubricating compositions of Examples 14-1 7 and Comparative Example 5 were also tested for flame retardancy and high temperature life of bearings. (1) Penetration: According to JIS Κ 2220 (ASTM D217) (2) Dropping point: according to jIS Κ 2220 (ASTM D566). (3) Water repellency: according to ASTM D1831. Water is added to the lubricating composition and mixed so that it forms 20% by weight/〇. Sample, shell roll test at room temperature for 24 hours. Then, Check the presence of rust 14 200835786 4 on each component of cylinder 1, inner roller 2 and upper cover 3 and any decomposition of the grease structure (see Figures 1A, 1B). If the grease structure of the lubricating composition is not damaged and maintained Penetration was measured in the normal oil wax state. 曰 (4) Mechanical stability: According to aSTM D1831, the lubricating composition was subjected to a shell roll test at room temperature for 24 hours, and then the permeability was measured. (5) Load resistance: Four-ball extreme high voltage test in accordance with ASTM D2596. Conditions: The temperature was 1770 ± 60 rpm, time 1 〇 second, and room temperature. Test items··We obtained welding load (weld l〇ad) WL (unit kg force) and finally last non-seizure load LSNL (unit kg force). (6) High temperature bearing life: Bearing life test in accordance with ASTM D3527. Conditions: The temperature was 1000 ± 50 rpm and the temperature was 160 ° C. Test item • Obtain bearing life (hours) based on overtorque. (7) Flame retardancy: The grease burn test was carried out by the method used in the November 1988 Spokesman NLGI (National Lubricating Grease Association). The test is outlined below. Description of the test: As in the oxidation stability test of JIS K2220 (ASTM D942), 4·00±0.01 g of the lubricating composition sample I is loaded into the glass container 11, and the ignited match 13 is applied for the test. The burning properties of oils and fats. If the flame 14 shines and the grease burns for 15 times, it is marked F (flammable). If the match burns only 16 and the grease does not burn 17 , 15 200835786 it is marked as I (inflammable). (See Figures 2A, 2B). Test Results The results of various tests are shown in Table 1-4. Table 1

Example 1 2 3 4 5 6 7 base oil mineral oil 48 48 53 52 51 52 51 poly-α-olefin oil ether oil ester oil tricalcium phosphate 47 47 42 43 44 43 44 interface between stearic acid and oleic acid Diglyceride 5 2 2 2 agent sorbitan monooleate 5 3 sorbitan tristearate 5 3 sorbitan trioleate. 5 3 Total % 100 100 100 100 100 100 100 test results penetrability 309 315 234 300 345 321 339 Fiscal drop point °C >250 >250 >250 >250 >250 >250 >250 Waterproof shell roll test, room corrosion No no no no no no temperature, 24 hours wet grease structure decomposition without no no no no no flaws 20% penetration 362 320 287 407 340 345 365 mechanical stable shell roller test, room temperature, 24 hours 324 334 262 321 341 328 343 Anti-load 4 ball extreme high pressure test LNSL, kg force 160 160 160 160 160 160 160 1 WL, kg force 400 400 400 400 400 400 400 16 200835786 Table 2

Example 8 9 10 11 12 13 base oil waste oil 53 51 53 poly-α-olefin oil 43 ether oil 38 vinegar oil 52 tricalcium phosphate 42 44 42 52 57 43 surfactant stearic acid and oleic acid Glyceryl sorbitan monooleate 2 2 5 5 5 sorbitan tristearate 3 2 sorbitan trioleate 3 3 Total % 100 100 100 100 100 100 Test results penetrability 227 332 338 265 278 268 Heat resistant dropping point. C >250 >250 >250 >250 >250 >250 Waterproof shell type roll test, chamber corrosion is no no no no no temperature, 24 hours wet grease structure decomposition without or without 20% penetrability 358 369 409 298 325 348 Mechanical stability shell roll test, room temperature, 24 hours 263 368 328 295 303 292 Load-bearing 4-ball extreme high pressure test LNSL, kg force 160 160 160 160 126 126 WL, Kilogram force 400 400 400 315 315 315 17 200835786 Table 3

Comparative Example 1 2 3 4 Base oil mineral oil 77 Polyolefin oil 77 Ether oil 77 Ester oil 77 Acid-filled drug 23 23 23 23 Surfactant stearic acid and oleic acid mono-diglyceride monooleate sorbitan Ester tristearate sorbitan ester trioleate sorbitan ester total % 100 100 100 100 Test results penetrability 272 269 267 267 Heat resistant dropping point °c >250 >250 >250 &gt 250 Waterproof shell roller test, room temperature, 24 hours humidity 20% Corrosion is whether the decomposition of the grease structure is penetrating Ν / Α Ν / Α Ν / Α Ν / Α anti-loading 4 balls Extremely high pressure test LNSL, kg force 63 63 63 63 WL, kg force 315 315 315 315 18 200835786 Table 4

Example 14 15 16 17 Comparative Example 5 Content of lubricating composition of Example 1 % 100 80 50 20 Content of lubricating composition of Comparative Example 5 % 20 50 80 110 Total % 100 100 100 100 100 Test result penetration 311 313 316 315 313 Treasury Dropping Point °C >250 >250 >250 >250 >250 Waterproof Shell Roll Test, Room Temperature, 24 Corrosion No No No No No Humidity 20% Grease Structure Decomposition without or without penetration 364 361 355 358 363 Mechanical stability shell roll test, room temperature, 24 hours 322 331 336 338 355 Load resistance 160 160 126 63 50 Shell roll test, room temperature, 24 hours 400 400 400 250 126 Bearing life ASTM D3527 160 ° C, hour 180 > 300 > 300 > 300 180 Flame retardant matchstick burning test IIIIF Discussion In the examples of Examples 1-4 shown in Tables 1 and 2, phosphoric acid Tricalcium has been added to mineral oils and uses different surfactants. In the examples of Examples 5-10, a surfactant mixture was used. In the examples of Examples 11 - 13., different base oil types were used. Examples 1 - 13 show satisfactory grease state and permeability of 227-345. It can also be seen that Examples 1-13 also have excellent heat resistance, and each of them has a dropping point of not less than 25 Å in each of the cases. As for the anti-negative property, in the four-ball extreme pressure test, the lnsl (final no-load load) of Example U was 16 〇 kg and in the example was kg. The WL (fusion load) of Example 1-10 was 4 〇〇 kg and in Example u 13 was 315 kg. In general, the oily moon, which is referred to as an extremely high pressure grease, will have about LSNL (final no load) of about 63 kg and WL (weld load) of about 250 kg, so this embodiment has shown high load resistance. In terms of mechanical stability, in the case of the shell roll test, Example U3 had a value of 262-368, thus demonstrating satisfactory mechanical stability. In the example of water repellency, in the case where the water content was 2% by weight, rust was not observed in any of Examples 1-13 (Fig. 1A), and no decomposition of the grease structure of the lubricating composition was observed. . Similarly, the penetrability showed an excellent value of 287-409, which proved to be excellent in water repellency. Compared with the vehicle parent, Comparative Example 1 _4 did not contain a surfactant and had a permeability of 267-272 and a dropping point of not lower than 250 ° C. However, good results were obtained regarding the semi-solid state and heat resistance. However, in the four-ball extreme pressure test, in the example of Comparative Example _4, WL (fusion load) was excellent 315 kg, but LNSL (final non-adhesive load) was 63 kg, which was significantly lower than the example. Thus, its load resistance is inferior to the embodiment. Further, in the case of the water repellency, in all of the comparative examples 1 to 4, bright red rust was produced on the entire surfaces of the cylindrical body 1, the inner roller 2, and the upper cover 2 of the setting roll test device (No. 1B). Figure). Similarly, the grease structure of the lubricating composition is decomposed and the permeability cannot be measured. Therefore, it is proved that the comparative example is relatively poor in terms of water resistance in 2008 20786. Example 14 in Table 4 is an example using tricalcium phosphate as a thickener, and Examples 15-17 are examples in which tricalcium phosphate and a urea compound are used together as a thickener. Comparative Example 5 is an example in which a urea compound was used as a thickener. Examples 14-17 and Comparative Example 5 showed roughly the same performance in terms of penetrability and dropping point (which showed heat resistance 'mechanical stability and waterproofness'), but in the four-ball extreme pressure test of load resistance A large difference was seen: In Example 14, LNSL (final no-load load) was 16 kg), and Comparative Example 5 was 50 kg; and Example 13, WL (fusion load) was 400 kg and Comparative Example 5 was 126 kg. The trend is to reduce the load-resistance performance when the amount of squash three dances is reduced. Similarly, in the example in which tricalcium phosphate or a urea compound was used alone as a thinning agent, the bearing life was 180 hours; however, when the two were used together, the bearing life was more than 300 hours, and the result was satisfactory. In addition, in the example of the flame retardancy, although the example 丨4_17 does not burn (Fig. 2A), the comparative example 5 does burn (Fig. 2B). It can be seen that the clear difference and the comparison of the flame retardancy of this tE with the prior art of the prior art have been improved. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is an exploded view of various components in a shell roll tester for testing water repellency: a cylinder, an inner cylinder, and an upper cover. Fig. 1A shows a state in which no rust is generated and Fig. 1B shows a state in which rust is generated. Figure 2 illustrates the test configuration diagram for the flame retardancy test. Figure 2A shows the configuration of the match-burning grease and Figure 2B shows the configuration of the match burning grease 21 200835786. [Description of main component symbols] 1 Cylindrical body 2 in the shell roller test device Internal roller 3 in the shell roller test device The upper cover 4 of the shell roller test device produces rust 11 in the shell roller test device Glass container for flame test 12 Lubricating composition sample in glass container® 13 Match 14 Match fire 16 Burning match

twenty two

Claims (1)

200835786 X. Patent Application Range: 1. A turbid composition comprising a base oil in an amount of from 2 to 68% by weight (relative to the total composition) of tricalcium phosphate and a surfactant. 2. Please ask for a patent scope! A lubricating composition of the invention, wherein the surfactant is a nonionic surfactant. 3. The lubricating composition of claim 2, wherein the nonionic surfactant is one or a combination of the following fatty acid vinegars: glyceryl fatty acid esters, sorbitan fatty acid esters, and sucrose fatty acid esters. 4. The lubricating composition of claim 3, wherein the fatty acid ester type surfactant has a fatty acid having a carbon number of from 丨2 to 22. 5. The lubricating composition according to any one of claims 1 to 4, wherein the amount of the surfactant is from 〇·2 to 18% by weight relative to the total composition 〇 6. as claimed in the patent range i__4 The lubricating composition of any one of the items, wherein the urea compound is incorporated in an amount of not more than 8% by weight based on the total composition. 7. The lubricating composition of claim 5, wherein the urea compound is incorporated in an amount of not more than 8% by weight based on the total composition. 8. A lubricating composition comprising a base oil, a mixture of tricalcium phosphate and a urea compound in an amount of from 3 to 7 〇 ❶/❻ (relative to the total composition), and an amount of from 0.2 to 18% by weight (relatively The glycerin fatty acid ester and/or the dehydrated sorbitol fatty acid g of the total composition). 9. The use of a lubricating composition according to any one of claims 1 to 8 for improving one or more properties selected from the following: (1) 23 200835786 μ Finance, (ii) Machinery Stability, (iii) water repellency, (iv) anti-corrosion #, (V) anti-loading and (vi) flame retardancy. XI. Schema: as the next page twenty four