EP0359466B1 - Lubricating composition - Google Patents

Lubricating composition Download PDF

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Publication number
EP0359466B1
EP0359466B1 EP89309012A EP89309012A EP0359466B1 EP 0359466 B1 EP0359466 B1 EP 0359466B1 EP 89309012 A EP89309012 A EP 89309012A EP 89309012 A EP89309012 A EP 89309012A EP 0359466 B1 EP0359466 B1 EP 0359466B1
Authority
EP
European Patent Office
Prior art keywords
composition
copolymer
vinyl acetate
ethylene
lubricating
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP89309012A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0359466A1 (en
Inventor
Gordon A. Alexander
Terrance O'dell Brown
Lyle Edwin Moran
David Anthony Slack
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ExxonMobil Technology and Engineering Co
Original Assignee
Exxon Research and Engineering Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Exxon Research and Engineering Co filed Critical Exxon Research and Engineering Co
Priority to AT89309012T priority Critical patent/ATE78289T1/de
Publication of EP0359466A1 publication Critical patent/EP0359466A1/en
Application granted granted Critical
Publication of EP0359466B1 publication Critical patent/EP0359466B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
    • C10M169/06—Mixtures of thickeners and additives
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M117/00—Lubricating compositions characterised by the thickener being a non-macromolecular carboxylic acid or salt thereof
    • C10M117/02—Lubricating compositions characterised by the thickener being a non-macromolecular carboxylic acid or salt thereof having only one carboxyl group bound to an acyclic carbon atom, cycloaliphatic carbon atom or hydrogen
    • C10M117/04—Lubricating compositions characterised by the thickener being a non-macromolecular carboxylic acid or salt thereof having only one carboxyl group bound to an acyclic carbon atom, cycloaliphatic carbon atom or hydrogen containing hydroxy groups
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M143/00—Lubricating compositions characterised by the additive being a macromolecular hydrocarbon or such hydrocarbon modified by oxidation
    • C10M143/02—Polyethene
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M143/00—Lubricating compositions characterised by the additive being a macromolecular hydrocarbon or such hydrocarbon modified by oxidation
    • C10M143/06—Lubricating compositions characterised by the additive being a macromolecular hydrocarbon or such hydrocarbon modified by oxidation containing butene
    • C—CHEMISTRY; METALLURGY
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    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M145/00—Lubricating compositions characterised by the additive being a macromolecular compound containing oxygen
    • C10M145/02—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M145/06—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to an acyloxy radical of a saturated carboxylic or carbonic acid
    • C10M145/08—Vinyl esters of a saturated carboxylic or carbonic acid
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    • C10M145/00—Lubricating compositions characterised by the additive being a macromolecular compound containing oxygen
    • C10M145/02—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M145/10—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to a carboxyl radical, e.g. acrylate
    • C10M145/12—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to a carboxyl radical, e.g. acrylate monocarboxylic
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    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
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    • C10M2205/02—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers
    • C10M2205/022—Ethene
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    • C10M2205/02—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers
    • C10M2205/026—Butene
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    • C10M2205/06—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing conjugated dienes
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    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/10—Carboxylix acids; Neutral salts thereof
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    • C10M2207/121—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of seven or less carbon atoms
    • C10M2207/124—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of seven or less carbon atoms containing hydroxy groups; Ethers thereof
    • C10M2207/1245—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of seven or less carbon atoms containing hydroxy groups; Ethers thereof used as thickening agent
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    • C10M2207/10—Carboxylix acids; Neutral salts thereof
    • C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
    • C10M2207/125—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids
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    • C10M2207/128—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids containing hydroxy groups; Ethers thereof
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    • C10M2207/1285—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids containing hydroxy groups; Ethers thereof used as thickening agents
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    • C10N2040/50—Medical uses
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B1/00—Constructional features of ropes or cables
    • D07B1/14—Ropes or cables with incorporated auxiliary elements, e.g. for marking, extending throughout the length of the rope or cable
    • D07B1/141—Ropes or cables with incorporated auxiliary elements, e.g. for marking, extending throughout the length of the rope or cable comprising liquid, pasty or powder agents, e.g. lubricants or anti-corrosive oils or greases
    • D07B1/144—Ropes or cables with incorporated auxiliary elements, e.g. for marking, extending throughout the length of the rope or cable comprising liquid, pasty or powder agents, e.g. lubricants or anti-corrosive oils or greases for cables or cable components built-up from metal wires

Definitions

  • This invention relates to a lubricating composition having improved low and high temperature properties, to its method of preparation, and to its use, particularly as an open gear lubricant.
  • lubricating compositions are used in applications that require satisfactory performance at both hot and cold temperature extremes. Examples of these applications include swing gears on mine shovels, large open gears on ball mills, and the like. A major complaint by users of this type of product is that it becomes very brittle at cold temperatures and tends to "run-off" at warmer temperatures.
  • U.S. Patent 3,705,853 discloses a grease composition comprising a lubricating oil, a thickener, and an ethylene terpolymer having a Melt Index in the range of 0.5 to 200. Although viscosity index agents may be present, there is no mention of the grease containing an ethylene copolymer (See also U.S. Patent 3,904,534).
  • ethylene copolymers have been incorporated into a variety of lubricating compositions.
  • U.S. Patent 4,115,343 discloses that the storage stability and anti-foaming tendency of organosiloxane polymers in mineral oil can be improved by adding ethylene-vinyl acetate copolymer (EVA) to the dispersion.
  • EVA ethylene-vinyl acetate copolymer
  • U.S. Patent 3,250,714 discloses that EVA is a VI improver for mineral lubricating oils.
  • the Melt Index of the polymer In U.S. Patent 3,947,368, EVA having a Melt Index of from 5 to 580 is used as a pour point depressant in waxy lube oils. No mention is made, however, of a thickener being present.
  • This invention in its broadest embodiment, concerns a lubricating composition having improved low temperature and high temperature properties. More specifically, a lubricating composition comprising (1) a lubricating oil, (2) a thickener, (3) a VI improver, and (4) a copolymer of ethylene with at least one compound selected from the group of vinyl acetate, alkyl acrylate, or alkyl methacrylate, has been found to have both excellent high temperature adhesiveness and low temperature slumpability.
  • the ethylene copolymer used in this invention must have a Melt Index of at least about 40 g/10 mins. and should contain from 10 to 40 wt.% vinyl acetate, alkyl acrylate, or alkyl methacrylate.
  • the Melt Index should be between 40 and 10,000, more preferably between 40 and 5000, and most preferably between 40 and 2500, g/10 mins.
  • the VI improver is either a polymer of isobutylene, or a copolymer of ethylene, propylene, butene or isobutylene with a C3 to C30 olefin.
  • this invention concerns a method for increasing the slumpability of a lubricating composition at a temperature below about -20°C and increasing its adhesiveness at a temperature above about +20°C.
  • this invention concerns the use of the above-defined copolymer as an additive in a lubricating composition to improve the low temperature slumpability and high temperature adhesiveness of the lubricating composition.
  • the lubricating oil base can be any of the conventionally used mineral oils, synthetic hydrocarbon oils, or synthetic ester oils. In general, these lubricating oils will have a viscosity in the range of 5 to 10,000 cSt at 40°C, although typical applications will require an oil having a viscosity ranging from 10 to 1,000 cSt at 40°C.
  • Mineral lubricating oil base stocks used in preparing the lubricating composition can be any conventionally refined base stocks derived from paraffinic, naphthenic, and mixed base crudes.
  • Synthetic lubricating oils that can be used include esters of dibasic acids such as di-2-ethylhexyl sebacate, esters of glycols such as a C13 oxo acid diester of tetraethylene glycol, or complex esters such as the ester formed from 1 mole of sebacic acid, 2 moles of tetraethylene glycol, and 2 moles of 2-ethylhexanoic acid.
  • Other synthetic oils that can be used include synthetic hydrocarbons such as polyalphaolefins; alkyl benzenes ( e .
  • suitable synthetic oils include the polyphenyl ethers, e .
  • the lubricating oil will comprise a major amount of the lubricating composition.
  • the amount of lubricating oil will range from above 50 to 90 wt.%, preferably from 70 to 85 wt.%, of the lubricating composition.
  • the lubricating composition will also contain a thickener dispersed in the lubricating oil to form a base grease.
  • a thickener dispersed in the lubricating oil to form a base grease.
  • the particular thickener employed is not critical and can vary broadly.
  • the thickener may be based on aluminum, barium, calcium, lithium, sodium soaps, or their complexes.
  • Soap thickeners may be derived from a wide range of animal oils, vegetable oils, and greases as well as the fatty acids derived therefrom. These materials are well known in the art and are described in, for example, C. J. Boner, Manufacture and Application of Lubricating Greases, Chapter 4, Robert E. Krieger Publishing Company, Inc., New York (1971).
  • Carbon black, silica, and clays may be used as well as dyes, polyureas, and other organic thickeners.
  • Pyrrolidone based thickeners can also be used.
  • Preferred thickeners are based on clay, a pyrrolidone, an aluminum soap, a barium soap, a calcium soap, a lithium soap, a sodium soap, or complexes of the soaps.
  • Particuarly preferred thickeners are based on lithium soap, calcium soap, aluminum soap, their complexes, or mixtures thereof. More preferred thickeners are based on lithium soap, calcium soap, their complexes, or mixtures thereof.
  • a lithium or lithium complex thickener that incorporates an hydroxy fatty acid having from 12 to 24 (preferably from 16 to 20) carbon atoms.
  • a preferred hydroxy fatty acid is an hydroxy stearic acid (e . g ., a 9-hydroxy or a 10-hydroxy stearic acid) of which 12-hydroxy stearic acid is most preferred (See U.S. Patent 3,929,651).
  • the amount of thickener in the lubricating composition will typically range from 1 to 15 wt.%. For most purposes, between 1 to 10 wt.%, preferably between 2 to 5 wt.%, of the thickener will be present in the composition.
  • Viscosity modifiers are long chain, generally high molecular weight polymers that impart high and low temperature operability to the lubricating composition by permitting it to remain relatively viscous at elevated temperatures and fluid at low temperatures. Viscosity modifiers may also be derivatized to include other properties or functions, such as the addition of dispersancy properties. Oil soluble viscosity modifying polymers useful in this invention will generally have number average molecular weights of from 300 to 106, preferably from 500 to 104, and more preferably from 1,000 to 2,000. The amount of VI improvers present in the lubricating composition will vary depending upon the particular VI improver used, its molecular weight, and the like. Typically, however, from 5 to 40 wt.% (preferably from 10 to 30 wt.%) of the lubricating composition will be VI improver.
  • the VI improver is a polymer of isobutylene or a copolymer of ethylene, propylene, butene, or isobutylene with a C3 to C30 olefin.
  • a polymer of isobutylene or a copolymer of butene and isobutylene are preferred, with a polymer of isobutylene being particularly preferred.
  • the polymer may be degraded in molecular weight by mastication, extrusion, oxidation, thermal degradation, etc., and may contain oxygen.
  • the lubricating composition will also contain a copolymer of ethylene with at least one compound selected from the group of vinyl acetate, alkyl acrylate, or alkyl methacrylate. Vinyl acetate is the preferred ethylene copolymer.
  • the copolymer must have a Melt Index of at least about 40 g/10 min and should have a copolymer content of from 10 to 40 wt.%, preferably from 10 to 30 wt.%.
  • the Melt Index should range from 40 to 10,000, more preferably from 40 to 5000, and most preferably from 40 to 2500, g/10 mins.
  • the amount of copolymer added should range from 1 to 20 wt.% (preferably from 1 to 10 wt.%) based on total weight of the composition.
  • the lubricating composition may also contain small amounts of supplemental additives which include, but are not limited to, anticorrosive agents, extreme pressure antiwear agents, pour point depressants, tackiness agents, oxidation inhibitors, dyes, and the like, which are incorporated for specific purposes.
  • supplemental additives include, but are not limited to, anticorrosive agents, extreme pressure antiwear agents, pour point depressants, tackiness agents, oxidation inhibitors, dyes, and the like, which are incorporated for specific purposes.
  • the total amount of these additives will typically range from 2 to 5 wt.% based on total weight of the lubricating composition.
  • solid lubricants such as molybdenum disulfide and graphite may be present in the composition - typically from 1 to 5 wt.% (preferably from 1.5 to 3 wt.%) for molybdenum disulfide and from 3 to 15 wt.% (preferably from 6 to 12 wt.%) for graphite.
  • One or more solvents may be added to the lubricating composition as a diluent to improve its dispensing properties.
  • Suitable solvents include pure hydrocarbon solvents, mixed hydrocarbon solvents, chlorhydrocarbon solvents, or mixtures thereof, which will typically have an atmospheric boiling point between 30° and 300°C.
  • Suitable pure hydrocarbon solvents include toluene, ortho-xylene, meta-xylene, mesitylene, ethylbenzene, butylbenzene, hexane, heptane, octane, isooctane, or their mixtures. Typically, these solvents will have a solid (or melting) point below about -25°C (preferably below -40°C).
  • Suitable mixed hydrocarbon solvents include kerosine, varsol, naphtha, or their mixtures. Typically, these solvents will have a pour point below about -25°C, preferably below about -40°C.
  • Suitable chlorohydrocarbon solvents include n-propylchloride, isopropyl chloride, n-butylchloride, iso-butylchloride, sec-butylchloride, pentylchloride, hexylchloride, dichloromethane, trichloromethane, 1,1-dichloroethane, 1,2-dichloroethane, trichloroethylene, chlorobenzene, and their mixtures, with 1,1,1-trichloroethane being particularly preferred.
  • the lubricating composition of this invention is usually prepared by first dispersing or mixing the thickener in the lubricating oil for from 1 to 8 hours or more (preferably from 1 to 4 hours) followed by heating at elevated temperature (e . g ., from 60° to 260°C depending upon the particular thickener used) until the mixture thickens. The mixture is then cooled to ambient temperature (typically about 25°C) during which time the VI improver, ethylene copolymer, and other additives are added. Although the VI improver and ethylene copolymer can be added together or separately in any order, it is preferred that they be added as described below to obtain a lubricating composition having the desired low and high temperature properties.
  • the ethylene copolymer e . g ., EVA
  • the ethylene copolymer can be added at a temperature outside this range, the copolymer will tend to coalesce at lower temperatures and not be suitably dispersed in the mixture.
  • the copolymer may be thermally unstable.
  • the VI improver is added at a temperature between 80° and 190°C . Additional lubricating oil may also be added within the latter temperature range to obtain the desired grease consistency and oil viscometric properties.
  • Other additives (such as the supplemental additives and solid lubricants mentioned above) are normally added at a temperature between 50° and 100°C.
  • a solvent is added to the mixture to provide the required dispensibility.
  • Lower temperatures are preferred for solvent addition to avoid excessive evaporation.
  • the composition will be blended or mixed during addition of its components.
  • the components of the lubricating composition can be mixed, blended, or milled in any number of ways which can readily be selected by one skilled in the art. Suitable means include external mixers, roll mills, internal mixers, Banbury mixers, screw extruders, augers, colloid mills, homogenizers, and the like.
  • the lubricating composition of this invention may be suitably employed in essentially any application requiring good lubrication at both high and low temperatures. Examples of such applications include open gears, rollers, bearings, wire ropes, cables.
  • the composition is particularly well suited for use as an open gear lubricant.
  • this invention concerns a method for increasing the slumpability of a lubricating composition at temperatures below about -20°C and increasing its adhesiveness at temperatures above about +20°C, wherein the composition contains:
  • the base grease composition was prepared in a Hobart mixing apparatus.
  • the open mixing vessel was equipped with heat tracing and thermal insulation.
  • the vessel was charged with 300 grams of 12-hydroxy stearic acid and 915 g of 100 SUS at 37.8°C (100°F) hydrotreated naphthenic distillate (available commercially as Exxon oil 1502) and the mixture heated to 70°C with constant agitation.
  • the mixture was neutralized by slowly adding 45 grams of LiOH ⁇ H2O in 150 grams of water over a one hour period, during which time the temperature was maintained between 70° and 110°C. After alkali addition was completed, the temperature was increased to 150°C and maintained at that temperature until dehydration was completed.
  • the alkali content was determined by acid titration to be 0.2 mass% (expressed as NaOH equivalent), which indicates neutralization is complete.
  • the temperature of the mixture was then increased to between 190° and 200°C and maintained within that range for about 30 minutes. Following this "cook-out", the mixture was then cooled to about 120°C by the slow addition of 500 grams of Pennsylvania Resin (2600 SUS at 98.9°C (210°F) and 500 grams of polybutene (800 cSt at 100°C), followed by the addition of 345 grams of Penn Resin and 86 grams of polybutene to obtain the desired oil viscosity (about 1000 cSt at 40°C).
  • Additional oil (3000 grams) was then added in six 500 gram aliquots, each containing 195 grams of 1502 oil, 180 grams of Penn Resin, and 125 grams of polybutene to obtain softer grease consistency while maintaining the desired ratio of mineral oil to VI improver. Oil additions were performed slowly to avoid formation of a separate oil phase. The composition was then passed once through a Charlotte colloid mill. The milled product had a cone penetration of 298 mm/10 as determined by ASTM D217.
  • a 3000 gram aliquot of the 298 mm/10 penetration product was returned to the mixing vessel and six additional 500 gram aliquots of the 1502/Penn Resin/polybutene blend added. Because the mixing vessel was too small to obtain a base grease having the proper consistency, about 1000 grams of product were removed from the mixing vessel and another 500 gram aliquot of the blend added to the remaining product. The resulting final base grease had a consistency of 367 mm/10 as determined by ASTM D217 and the following composition:
  • the lubricating compositions employed in Examples 2 and 3 were prepared from this base grease as follows. About 400 g of base grease was mixed with the required amount of each of the following commercially available polymers at 125°C. The 60 strokes worked penetration of each mixture was then measured by ASTM D217. The mixtures were then cooled and mixed with trichloroethane to obtain a final solvent concentration of 25 wt.% in the compositions tested.
  • each polymer modified composition prepared in Example 1 was determined from the Cone Yield Value.
  • Cone Yield a round 90 mm diameter by 60 mm deep container was filled with a sample of each composition and the surface smoothed with a spatula if required. Each sample was cold soaked for 4 hours at -40°C and then the penetration determined with a standard grease penetrometer, the description of which is given in ASTM D217. For this measurement, a special right-angle cone measuring 62 mm at the base was used. The total weight of the cone and shaft was 66.7 grams. The penetration at -40°C was measured after 10 seconds instead of the 5 seconds employed in the usual test with the standard cone.
  • Cone Yield @-40°C (weight of cone + shaft) ⁇ (Pen @ -40°C/100) 2
  • Cone Yield values of less than about 80 are characteristic of lubricants with good slumpability.
  • Example 3 The adhesiveness of the samples prepared in Example 1 was determined by spreading 10 grams of each sample on separate aluminum plates. The plates were then suspended vertically in a circulating oven for 24 hours at 65°C. The change in weight of each plate was then calculated on a solvent-free basis and the degree of surface coverage estimated visually. The results of these tests are shown in Table 3.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Lubricants (AREA)
  • Forging (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
EP89309012A 1988-09-08 1989-09-06 Lubricating composition Expired - Lifetime EP0359466B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89309012T ATE78289T1 (de) 1988-09-08 1989-09-06 Schmiermittelgemisch.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US24165588A 1988-09-08 1988-09-08
US241655 1988-09-08

Publications (2)

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EP0359466A1 EP0359466A1 (en) 1990-03-21
EP0359466B1 true EP0359466B1 (en) 1992-07-15

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EP89309012A Expired - Lifetime EP0359466B1 (en) 1988-09-08 1989-09-06 Lubricating composition

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EP (1) EP0359466B1 (no)
JP (1) JPH02175796A (no)
KR (1) KR970011370B1 (no)
AR (1) AR244320A1 (no)
AT (1) ATE78289T1 (no)
AU (1) AU4116189A (no)
CA (1) CA1334965C (no)
DE (1) DE68902115T2 (no)
ES (1) ES2043028T3 (no)
FI (1) FI894232A (no)
MY (1) MY105037A (no)
NO (1) NO174348C (no)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1461904B (zh) * 2002-05-31 2010-04-07 Thk株式会社 润滑剂供给装置
US8318993B2 (en) 2002-03-05 2012-11-27 Exxonmobil Research And Engineering Company Lubricant blend composition

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9420312D0 (en) * 1994-10-08 1994-11-23 Exxon Research Engineering Co Lubricating grease for open gears, cables, etc
JPH10130682A (ja) * 1996-10-29 1998-05-19 Ntn Corp グリース封入転がり軸受
FI125285B (fi) 2009-05-20 2015-08-14 Kone Corp Menetelmä ja laitteisto langoista punottavan köyden voitelemiseksi
FI125317B (fi) * 2010-05-20 2015-08-31 Kone Corp Metalliköysi, metalliköydellä varustettu hissi ja voiteluaineen käyttö metalliköyden voitelemiseen
US20120004153A1 (en) * 2010-06-30 2012-01-05 Chevron U.S.A. Inc. Lithium Complex Grease with Improved Thickener Yield
US8796189B2 (en) * 2011-10-14 2014-08-05 Chevron U.S.A. Inc. Gear lubricant
JP6624681B2 (ja) * 2016-05-25 2019-12-25 コスモ石油ルブリカンツ株式会社 グリース組成物

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3705853A (en) * 1970-09-23 1972-12-12 Mobil Oil Corp Grease compositions
AU457980B2 (en) * 1970-11-18 1975-02-13 Esso Research And Engineering Company Lithium soap grease
FR2313440A1 (fr) * 1975-06-06 1976-12-31 Rhone Poulenc Ind Dispersions homogenes de compositions diorganopolysiloxaniques dans des huiles minerales
DE3033107A1 (de) * 1980-09-03 1982-04-08 The British Petroleum Co., Ltd., London Schmierfett

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8318993B2 (en) 2002-03-05 2012-11-27 Exxonmobil Research And Engineering Company Lubricant blend composition
CN1461904B (zh) * 2002-05-31 2010-04-07 Thk株式会社 润滑剂供给装置

Also Published As

Publication number Publication date
KR970011370B1 (ko) 1997-07-10
NO174348B (no) 1994-01-10
FI894232A (fi) 1990-03-09
KR900004920A (ko) 1990-04-13
CA1334965C (en) 1995-03-28
MY105037A (en) 1994-07-30
FI894232A0 (fi) 1989-09-07
DE68902115D1 (de) 1992-08-20
NO893563L (no) 1990-03-09
ES2043028T3 (es) 1993-12-16
NO174348C (no) 1994-04-20
AU4116189A (en) 1990-03-15
AR244320A1 (es) 1993-10-29
JPH02175796A (ja) 1990-07-09
EP0359466A1 (en) 1990-03-21
ATE78289T1 (de) 1992-08-15
DE68902115T2 (de) 1992-12-03
NO893563D0 (no) 1989-09-05

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