EP0789069B1 - Zusatzstoffhaltige Mehrbereichsmotoröl- und -schmierölkomposition - Google Patents

Zusatzstoffhaltige Mehrbereichsmotoröl- und -schmierölkomposition Download PDF

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Publication number
EP0789069B1
EP0789069B1 EP95119299A EP95119299A EP0789069B1 EP 0789069 B1 EP0789069 B1 EP 0789069B1 EP 95119299 A EP95119299 A EP 95119299A EP 95119299 A EP95119299 A EP 95119299A EP 0789069 B1 EP0789069 B1 EP 0789069B1
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Prior art keywords
component
average molecular
molecular weight
weight
derivative
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EP95119299A
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German (de)
English (en)
French (fr)
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EP0789069A3 (de
EP0789069A2 (de
Inventor
Janos Auer
Jeno Baladincz
Laszlo Dr. Bartha
Eva Bobest
Gyula Dr. Deak
Ferenc Dr. Dénes
Jeno Dr. Hancsok
Janos Kis
Margit Lenti
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VESZPREMI EGYETEM
Mol Magyar Olaj es Gazipari Rt
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VESZPREMI EGYETEM
Mol Magyar Olaj es Gazipari Rt
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    • C10M2219/02—Sulfur-containing compounds obtained by sulfurisation with sulfur or sulfur-containing compounds
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    • C10M2219/04—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions containing sulfur-to-oxygen bonds, i.e. sulfones, sulfoxides
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    • C10M2219/06—Thio-acids; Thiocyanates; Derivatives thereof
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    • C10M2219/06—Thio-acids; Thiocyanates; Derivatives thereof
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    • C10M2219/087—Thiols; Sulfides; Polysulfides; Mercaptals containing sulfur atoms bound to acyclic or cycloaliphatic carbon atoms containing hydroxy groups; Derivatives thereof, e.g. sulfurised phenols
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    • C10M2219/106—Thiadiazoles
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    • C10M2223/02—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having no phosphorus-to-carbon bonds
    • C10M2223/04—Phosphate esters
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    • C10M2223/042—Metal salts thereof
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    • C10M2223/045—Metal containing thio derivatives
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    • C10M2223/04—Phosphate esters
    • C10M2223/047—Thioderivatives not containing metallic elements
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    • C10N2010/00—Metal present as such or in compounds
    • C10N2010/04—Groups 2 or 12
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    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/02—Bearings
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    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/08—Hydraulic fluids, e.g. brake-fluids
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    • C10N2040/20—Metal working
    • C10N2040/22—Metal working with essential removal of material, e.g. cutting, grinding or drilling
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    • C10N2040/25—Internal-combustion engines
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    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/25—Internal-combustion engines
    • C10N2040/251—Alcohol fueled engines
    • C—CHEMISTRY; METALLURGY
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    • C10N2040/00—Specified use or application for which the lubricating composition is intended
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    • C10N2040/255—Gasoline engines
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    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/25—Internal-combustion engines
    • C10N2040/255—Gasoline engines
    • C10N2040/28—Rotary engines

Definitions

  • the invention relates to a halogen-free, additive-containing multi-grade engine oil and lubricating oil composition with high stability and optionally low phosphorus content, which consists of base oil and an additive package.
  • the invention further relates to the additive package used.
  • the additives of the conventional engine oils can be classified into five groups because of their function and structure.
  • ashless DD additives Another group of additives that spread very rapidly in use is represented by the so-called ashless DD additives. Their increasing use in terms of their quantitative content is due to the fact that the greater performance requirements imposed by the new engine designs - such as the reduction of black sludge formation, environmentally damaging metal emissions and the effects of damaging sealing materials - can only be achieved by the further development of the ashless DD additives and can be satisfied by their use with increased concentration.
  • M n ⁇ 2,000 ashless DD additives mostly imide, amide or ester derivatives of polyalkenylsuccinic, Mannich bases with polyisobutene basic structure, polyolefin amines and similar substances are used.
  • the third, fourth and fifth groups of additives are formed by additives with additional functions. These additives include a number of compounds which have very important effects in terms of use.
  • metal-containing detergents include, for example, the metal-containing detergents, oxidation inhibitors, corrosion inhibitors, friction modifiers and abrasion inhibitors, and foam control agents.
  • oxidation inhibitors include, for example, the metal-containing detergents, oxidation inhibitors, corrosion inhibitors, friction modifiers and abrasion inhibitors, and foam control agents.
  • corrosion inhibitors include, for example, the corrosion inhibitors, friction modifiers and abrasion inhibitors, and foam control agents.
  • foam control agents include, for example, the metal-containing detergents, oxidation inhibitors, corrosion inhibitors, friction modifiers and abrasion inhibitors, and foam control agents.
  • foam control agents include, for example, the metal-containing detergents, oxidation inhibitors, corrosion inhibitors, friction modifiers and abrasion inhibitors, and foam control agents.
  • foam control agents include, for example, the metal-containing detergents, oxidation inhibitors, corrosion inhibitors, friction modifiers and abrasion inhibitors, and foam control agents.
  • foam control agents include
  • the composition of engine oils has been improved, on the one hand, by the use of new enhanced additives, which satisfy the new requirements at a higher level, and on the other hand by a new modification of the structure of the previously successfully used additives, ie changes the production of adjunct additives in addition to the main effect, the use of which makes it possible to further increase the level of performance or to reduce the concentration required for a given level of performance.
  • a new modification of the structure of the previously successfully used additives ie changes the production of adjunct additives in addition to the main effect, the use of which makes it possible to further increase the level of performance or to reduce the concentration required for a given level of performance.
  • by chemically modifying the structure of the additives used in the compositions such unwanted side effects have been successfully reduced, such as damage to the sealing material or corrosion of the bearing metals.
  • the DD effect was achieved, for example, by modifying the ashless succinimide additives with organic acids (EP 0 537 386 ) or by optimizing the structure of the polyethylene-polyamines used for the synthesis ( EP 0 451 380 ) elevated.
  • Vaccination of conventional viscosity and viscosity index increasing ethylene-propylene copolymers with polar groups has successfully formed a DD side effect ( EP 0 400 866 ).
  • the mixed polymers of ethylene-propylene copolymers seeded with polymethacrylates are useful for stabilizing the blends of various viscosity and viscosity index increasing polymers.
  • Additives having an increased viscosity and viscosity index-increasing side effect in addition to an increased DD effect and improved compatibility with the sealing materials can be prepared by extending the polymer side chain of polyisobutenyl succinimides to a molecular weight of 5,000 and synthesizing so-called polysuccinimide additives (US Pat. US 4,234,435 . WO 91/04959 . WO 90/03359 and EP 0 271 937 ).
  • EP 0 677 572 describes such polyisobutylene (PIB), maleic anhydride and other comonomer-synthesized and detergent-dispersing additives and their use in motor oils, in which the ratio of the molecular structure present in polar BA and the oil-solubility required PIB groups 1,6-6, 0 is preferably 1.8-4.0.
  • EP 0 658 572 describes intermediates with a BA / PIB coupling number of from 1.3 to 6, prepared from PIB and maleic anhydride. These serve as acylating agents in the acylation of organic bases and / or alcohols to produce detergent-dispersing and ashless additives.
  • the amount of viscosity and viscosity index increasing polymers to be used may be e.g. by using hydrocracked base oils or synthetic base oils (polyalphaolefins, diesters and the like) having an ever-increasing viscosity index.
  • the conventional viscosity and viscosity index-increasing polymers exert beneficial effects in the lubricating oils, but the unstable decomposition products resulting from the use of the composition and the action of the formed chemical impurities under the severe circumstances (such as high temperature and mechanical stress) promote the formation of insoluble resin-like ones Deposits, and thus the pollution of the engine.
  • these polymers can only ensure the desired viscosity and the desired viscosity index of the lubricating oil to a reduced degree.
  • the quality of engine oils can therefore be further improved by the use of polymers with increased stability.
  • the invention therefore relates to a lubricating oil composition, preferably motor oil composition, which consists of base oils and additives suitable for lubricating oils, preferably motor oils, and in an amount of 1.5-55 wt.% Contains an additive package, each consisting of one or more additives Components "A", "B” and optionally "C", wherein the individual components have the following composition:
  • the invention further provides the additive package used in the above compositions, each containing one or more additives components "A”, "B” and optionally "C", which have the above composition contains.
  • the additive package according to the invention consists of three main components (A, B, C), each containing one or more additives.
  • the component “A” contains as the main component of a new ashless polyfunctional additive composition with DD and viscosity and viscosity index increasing effect of inoculated polyolefin derivatives, preferably from polyisobutylenebemsteinklad derivatives (hereinafter polyfunctional ashless DD additive composition);
  • Component “B” is an additive mixture of common ash-containing and / or ashless additives with various effects;
  • the component “C” is an additional and customary additive or additive mixture with viscosity and viscosity index increasing effect.
  • the component “C” may optionally be omitted.
  • Component "A” contains in 10-100 wt.% Of a polyfunctional, ashless DD additive composition or its oily solution, wherein the polyfunctional, ashless DD additive composition contains polymer components which by reaction of a polyolefin derivative, preferably a Polyisobutylen- Derivatives (PIB derivative) having a numerical average molecular weight of more than 800, preferably 1,300-30,000, with one or more unsaturated dicarboxylic acids and / or carboxylic acid anhydride, preferably with maleic anhydride and with one or more non-acidic comonomers having ethylenic double bond or with copolymers of such Comonomers (and / or with maleic anhydride homopolymers) is inoculated with a compound containing an amino and / or imino and / or hydroxy group were prepared, wherein the polymer components have the same or different numerical average molecular weights and in which the polyolefin e, whose average mole
  • the above polyfunctional ashless DD additive composition preferably contains at least two polymer components having different - a lower (M n1 ) and a higher (M n11 ) - average molecular weight , wherein the numerical average molecular weight of the lower average molecular weight polymer component is less than six times that Is average molecular weight of the starting polyolefin, and its weight ratio to the higher average molecular weight polymer component is 0.01-5: 1.
  • the ratio of the numerical average molecular weights of the higher and lower average molecular weight polymer components is M nll / M nl - 3 - 50 . prefers 10 - 20th
  • an acylating agent is preferably first prepared by employing a polyolefin, preferably PIB, having a number average molecular weight of at least 800, preferably at least 1300, a polar copolymeric side chain of maleic anhydride and a polar or apolar, non-acidic comonomer with ethylenic double bond or a mixture of such comonomers.
  • the comonomer may be a separately added compound or an initiator (used in the process), or an incorporation-controlling compound or unsaturated decomposition product of the polyolefin precursor, or an unsaturated component from the degradation of the polyolefin (US Pat.
  • the vaccination may be carried out by a stepwise coupling of maleic anhydride and comonomers to the polyolefin molecule and / or by addition of a copolymer chain previously prepared from maleic anhydride and one or more comonomer or portions thereof to the polyolefin.
  • the preparation of the acylating agent is carried out in addition to a maleic anhydride / comonomer / polyolefin molar ratio of 1.2-5.5: 0.01--3.5: 1 in the presence or absence of solvent and in the presence of 5--25 wt % (relative to the maleic anhydride) of a free-radical initiator and from 0.1-5% by weight of a compound which controls the incorporation ratio of the monomers, at a pressure of between 100 and 1500 kPa, in an inert and / or hydrocarbon atmosphere, at a temperature between 80-180 ° C. If necessary, the intermediate is diluted with base oil and, after clarification, purified by filtration.
  • the recovered acylating agent is reacted with one or more at least bifunctional compounds having amino and / or imino and / or hydroxy groups at an acylating agent / amine and / or alcohol molar ratio of 0.7-5.5: 1 at a temperature between 120- 235 ° C in the presence or absence of a catalyst reacted for 2-15 hours, optionally diluted with base oil, purified and modified in a known manner.
  • the recovered intermediate which consists of a long apolar polyolefin chain and a tethered, highly polar copolymer chain having a random or alternating structure, is high in the production of imide and / or ester and / or amide and / or ester amide derivatives dispersing action, wherein the groups attached to the same polyolefin chain may be the same or different.
  • the polyfunctional, mostly terminal, groups usually consisting of a large number of carboxyl groups, allow the acylation, using appropriate at least bifunctional basic reagents, to form polymer structures which advantageously modify the flow properties of lubricating oils.
  • polyisobutylenes can be used by the invention as viscosity modifying additives, both in terms of hot viscosity and cold viscosity.
  • the polyfunctional ashless DD additive composition has better thermal and oxidation stability than the usual viscosity index increasing additives, and thus the stability of the engine oil compositions is increased to an unexpected extent.
  • the component "A” contains - in addition to the main component described above - optionally 0-90 wt.% Of conventional and commercially available small molecule alkenylsuccinic acid derivatives, such as esters, ester amides, polyisobutenylsuccinimides, Succinimidamide or mixtures thereof. Particular preference is given to the HU 197 936 and 205 778 manufactured products.
  • component "B” in the composition according to the invention such further additives with known effect are used, which are practically indispensable in the production of modern, high-performance oil compositions.
  • Antioxidants such as zinc dialkyldithiophosphates and dithiocarbamates, sterically hindered phenols, cresols, aromatic amines and their derivatives; friction and abrasion reducing additives, such as aliphatic amines, amides, esters, ester amides, phosphates, thiophosphates, sulfides, polysulfides and their derivatives;
  • Corrosion inhibitors such as alkyltriazoles, Merkaptobenztriazole, monocarboxylic acids, dicarboxylic acids and their derivatives;
  • Foam control agents such as dialkyl silicone
  • Preferred constituents of component "B” are, as metal-containing DD additives, the basic and hyperbasic calcium and magnesium sulfonates, phenates and salicylates, as inhibitors the zinc dialkyldithiophosphates, ashless dithiocarbamates, sterically hindered phenols and aromatic amines, the fatty acid as friction-reducing substances - And phosphoric acid derivatives and polyalkyl siloxanes, as abrasion inhibitors, the dithiocarbamates, sulfurized vegetable oil derivatives and as solidification point-reducing substances, the polyalkyl methacrylates, and mixtures of the above substances.
  • component "B” The commercially available additives which can be used as component "B" can easily be selected by a skilled person on the basis of previous experience and results of technical preliminary investigations.
  • Component "C” is a known viscosity and viscosity index increasing polymer or a correspondingly selected mixture of such polymers.
  • polyalkyl methacrylates, Ethylene-propylene copolymers, styrene-diolefin copolymers, and their nitrogen-containing derivatives used for multigrade engine oil compositions.
  • the ratio of the additives used in the components "A", "B” and “C” within the components as well as the ratios of the individual components with each other are determined by various parameters. As an example of these parameters may be mentioned the viscosity level and performance of the composition to be prepared, the properties of the base oil used, as well as the concentration-dependent effect of the additives.
  • the concentration of the additives used in the individual components are preferably selected within the ranges given in Table 1.
  • the amount of the individual components is preferably set in the ranges shown in Table 2.
  • Table 2 ⁇ / b> Preferred concentration ranges of the components based on the additive package component Quantity (% by weight) A 15-85 B 15-85 C 0-70
  • the additive package according to the invention can also be used as a concentrate.
  • the additive package is preferably incorporated in 0-85% by weight of diluent to facilitate handling.
  • diluents for example, the base oils used in the composition, such as the usual in motor oil compositions base oils with low viscosity, VK100 ⁇ 15 mm 2 / s can be used.
  • the base oil used may be those customary base oils based on mineral oils which can be prepared by solvent refining and / or hydrogenation refining and / or solvent and / or catalytic dewaxing and / or bleacher derivatization and / or hydrogenation final refining and / or hydrocracking processes, and optionally by subsequent solvent and / or catalytic dewaxing, the composition of these base oils being preferably adjusted by mixing commercial base oils of various viscosities with respect to the desired level of viscosity and performance.
  • synthetic oils such as polyalphaolefins, dicarboxylic acid esters or polyol esters, as well as vegetable oils and / or derivatives thereof, the proportion of which should be adjusted according to the requirements of use.
  • various mixtures of base oils which consists of paraffinic crude oils by a combination of solvent and / or hydrogenation refining were evaluated with Polyalphaolefinen and dicarboxylic acid esters as particularly advantageous, the proportions are adjusted with respect to the desired viscosity.
  • corresponding engine oil compositions can be made to the known power levels.
  • the level SG and SH or according to the CCMC classification (Lecture of GF Cahill: Evolution of the CCMC Engine Lubricant Sequences, at CEC's Illrd International Symposium of Performance Evolution to Automotive Fuels and Lubricants, April 13, 1989 ) reach level PD-2 and GL-5.
  • the additive package according to the invention can, in addition to the engine oil compositions in other lubricating oil compositions, such as gear oils, hydraulic fluids, automatic transmission oils (ATF), cooling oils and machine oils; as well as in other compositions, such as brake fluids, heat supply oils, and hard oils, as well as in motor fuels to improve the properties of these are used.
  • other lubricating oil compositions such as gear oils, hydraulic fluids, automatic transmission oils (ATF), cooling oils and machine oils
  • other compositions such as brake fluids, heat supply oils, and hard oils, as well as in motor fuels to improve the properties of these are used.
  • the preferred field of use is the production of additive-containing multigrade engine oil compositions.
  • compositions are carried out by the usual mixture. Here you can proceed by adding the additives used in the components individually to the base oil, and the entire composition thoroughly mixed.
  • the other possibility is the prior production of the additive package, wherein the additives are mixed together in the desired amounts, then the viscosity, in order to facilitate further processing, is adjusted to the desired level with any base oil preferably used for the composition.
  • the concentrate thus obtained is mixed with the desired base oil for composition.
  • the order of addition of the additives should be determined taking into account the possible chemical reactions.
  • the various additive components are preferably blended into the base oil in such an order as to minimize the likelihood of reaction between the compounds having different chemical structures and reaction capabilities. In order to avoid thermal decomposition, work is carried out at a temperature between 40-80 ° C.
  • a significant advantage of the invention is that the large molecular weight PIB base material used for the halogen-free and ashless additive allows for the production of a higher performance DD additive which will only slightly damage the elastomeric sealing materials used with appropriate amounts of other conventional additives just protected. Furthermore, it has an increased shear, heat and oxidation stability, viscosity and viscosity index-increasing effect, and an additional abrasion-inhibiting side effect, thereby enabling the reduction or omission of the usual polymers or phosphorus-containing abrasion inhibitors, and thus the production of highly stable and environmentally friendly compositions.
  • the following engine oil compositions are prepared using the polyfunctional ashless DD additive compositions according to Example 1 (PIBPSI-1, PIBPSI-2).
  • the test motor oil compositions K-1-K-14 are prepared as follows:
  • a device which is equipped with a jacket heating to a temperature of 120 ° C, or equivalent jacket cooling and an internal mechanical stirrer, first sets the present in the composition oil component with the lowest viscosity (including the synthetic components) at ambient temperature. Thereafter, with heating and constant stirring, add the further oil components in an order corresponding to the increase in viscosity at ambient temperature.
  • the oil mixture is heated to a temperature of 70 ° C, and in an appropriate amount for ease of handling optionally up to 60 ° C heated pour point depressants (PPD), various viscosity index-increasing additives (VII-1, 2, 3 and 4), and together with these are mixed with the ashless dispersants used.
  • PPD heated pour point depressants
  • VI-1, 2, 3 and 4 various viscosity index-increasing additives
  • Mineral oil raffinates SN-80, SN-150 and SN-350 are dewaxed fractions of N-methyl-pyrrolidone solvent-refined and hydrogenated fractions of distillates made from Hungarian mineral oil. Its kinematic viscosity at 100 ° C is 3.42 mm 2 / s, 5.40 mm 2 / s and 8.62 mm 2 s, its viscosity index is 102, 106 and 95, its aromatic content after firing is 4.9%, 4.6% and 7.7%, their pour point is -18 ° C, -18 ° C and -15 ° C.
  • the base oil SAE 10 / 95H is a refined, dewaxed oil obtained by a light hydrocracking process and subsequent Redistillation was prepared.
  • the oil SAE 10 / 95H shows a kinematic viscosity at 100 ° C and 40 ° C of 5.29 and 31.7 mm 2 / s, a viscosity index of 100, a aromatics content after fire of 7.7%, a sulfur content of 0 , 04%, a pour point of -18 ° C.
  • the components PAO-4 and PAO-6 are commercially available polyalphaolefins.
  • the pour point depressant PPD is a polymethacrylate additive.
  • VII-1 is a polymethacrylate commonly used in engine oils
  • VII-2 is a solution of styrene-isoprene copolymer in base oil SN-150
  • VII-3 is a viscosity-modifying polyisoprene
  • VII-4 is a solution of olefin copolymer in base oil SN 150.
  • the base oil SN-150 used in V.I.I.-2, 3 and 4 has the quality characteristics presented in the base oils.
  • the ZDDP component is a zinc dialkyldithiophosphate which is widely used as an additive of engine oil compositions for diesel and gasoline engines, and has been made with mixed primary and secondary alcohols. It has a zinc content of 9.2% by weight and a phosphorus content of 8.4% by weight, and contains diphenylamine derivatives as antioxidant (AO).
  • the component DET is a detergent of a mixture of basic calcium and magnesium salicylates, it has a CA content of 4.9% by weight, a Mg content of 2.6% by weight and a basic number of 2.53 mg KOH / g according to ASTM D 2896.
  • compositions K-1-K-14 The beneficial effects of the invention are demonstrated by the properties of compositions K-1-K-14.
  • compositions K-5, K-6, K-7 and K-8 corresponding to SAE viscosity grade 10W-40 show the same composition except for succinimides (Composition K-8 contains PAO-6 containing the other three compositions PAO-4).
  • Composition K-3 is based on mineral oil, contains mineral oil raffinate produced by a light hydrocracking process, and has an SAE viscosity level of 15W-40.
  • compositions K-3, K-6, K-7 and K-8 given in Table 6 show the advantage of the invention in comparison with the poor results of the composition K-5.
  • composition K-9 made with standard dispersant and composition K-10 made with the additive package of the present invention show in a Timken apparatus an OK load (ASTM D 2782) equal to 45 lb (22 kg). , After a 3-hour abrasion test at a load of 40 lb (19.5 kg), however, the inventive composition K-11 shows a 60% smaller abrasion.
  • PIBPSI-1 exhibits the smaller viscosity-increasing effect, but this also allows a one-third reduction in the amount of viscosity-modifying polymers in the SAE 15W-50 compared to the amount used in the DD Reference additive Komad-301 was used.
  • the reduction in polymer content i. the savings about 25%, and at the level 5W-50 about 15%.
  • Additive composition PIBPSI-2 exhibiting a higher viscosity modifying effect, allows replacement of the entire amount of viscosity modifying polymers for SAE stages 15W-40 and 15 in compositions K-4 and K-6 at a DD concentration required for API grade SG 10W-40, in the composition of grade 5W-50, only one-third of viscosity-modifying polymers were required by their application compared to the DD reference composition.
  • the DD additives used in the additive package according to the invention do not increase the cold viscosity of the oils as viscosity-modifying polymers any more than the conventional polymers.
  • the Bosch injector shear stability (ASTM D3934) of the engine oil compositions K-7, K-13 and K-14 containing partially or entirely succinimides as the viscosity modifying additive the shear stability of the engine oil composition K 12 containing reference succinimide ( Komad-301) and VII-1 polymethacrylate-based is similar.
  • the tests on the brake tester, as a decisive feature for the qualification of engine oil compositions, have been summarized in Table 10.
  • the oil compositions K-2 and K-3 were tested on brake testers Petter W-1, M 102 E, Sequence IIIE and PV 1431.
  • the engine mud scores of the M 102 E and Sequence IIIE brake testers show excellent dispersing properties, and the piston cleanliness values at the Sequence IIIE and PV 1431 brake testers have a corresponding detergency effect on the additives used in the oil compositions.
  • the advantageous composition of the compositions according to the invention was further demonstrated by the good abrasion properties measured on the brake tester Petter M 102 E and in particular on the Sequeence IIIE brake tester and by the very small bearing wear measured on the brake tester Petter W-1.
  • composition of the additive package concentrate of this invention and the engine oil composition diluted therefrom are shown in Table 11.
  • Component "B” 5.0 5.0 PPD (PMD) 1.3 1.3 1.0 0.7 ZDDP 8.4 8.2 6.6 4.2 DET 22.7 22.1 17.8 11.3

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Lubricants (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)
  • Processing Of Solid Wastes (AREA)
  • Medicines Containing Material From Animals Or Micro-Organisms (AREA)
  • Saccharide Compounds (AREA)
EP95119299A 1995-09-25 1995-12-07 Zusatzstoffhaltige Mehrbereichsmotoröl- und -schmierölkomposition Expired - Lifetime EP0789069B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
HU9502797 1995-09-25
HU9502797A HU213255B (en) 1995-09-25 1995-09-25 Multiple- stage engineoil and lubricant composition and additive-pocket

Publications (3)

Publication Number Publication Date
EP0789069A2 EP0789069A2 (de) 1997-08-13
EP0789069A3 EP0789069A3 (de) 1998-05-13
EP0789069B1 true EP0789069B1 (de) 2007-06-20

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EP (1) EP0789069B1 (es)
AT (1) ATE365202T1 (es)
CZ (1) CZ294327B6 (es)
DE (1) DE59511080D1 (es)
EE (1) EE9500079A (es)
ES (1) ES2289741T3 (es)
HR (1) HRP950611B1 (es)
HU (1) HU213255B (es)
PL (1) PL179150B1 (es)
RO (1) RO119233B1 (es)
RS (1) RS49806B (es)
RU (1) RU2161179C2 (es)
SK (1) SK284909B6 (es)
UA (1) UA43339C2 (es)

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US11708838B2 (en) 2020-07-02 2023-07-25 Halliburton Energy Services, Inc. Chemical sequestration of wellbore fluids in electric submersible pump systems
WO2022005486A1 (en) 2020-07-02 2022-01-06 Halliburton Energy Services, Inc. Seal bag for seal of an electric submersible pump
RU2769603C1 (ru) * 2021-03-17 2022-04-04 Федеральное государственное бюджетное образовательное учреждение высшего образования «Тамбовский государственный технический университет» (ФГБОУ ВО «ТГТУ») Невысыхающий состав для защиты стальных изделий

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FR2706469B1 (fr) * 1993-06-16 1995-10-13 Inst Francais Du Petrole Polyisobutènes polyfonctionnels, leur préparation, leur formulation et leur utilisation.
JP3001385B2 (ja) * 1993-12-13 2000-01-24 シェブロン ケミカル カンパニー ポリマー分散剤
HU211439B (en) * 1993-12-16 1996-02-28 Veszpremi Egyetem Ash-free detergent-dispergant polymer type additive composition and process for preparing thereof
HU214008B (hu) * 1994-04-15 1998-04-28 MOL Magyar Olaj- és Gázipari Rt. Detergens-diszpergens adalékok belső égésű motorok kenőolajaihoz és előállítási eljárásuk

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Publication number Publication date
RU2161179C2 (ru) 2000-12-27
HRP950611A2 (en) 1998-02-28
SK284909B6 (sk) 2006-02-02
UA43339C2 (uk) 2001-12-17
CZ341095A3 (cs) 1998-04-15
DE59511080D1 (de) 2007-08-02
CZ294327B6 (cs) 2004-11-10
PL312098A1 (en) 1997-04-01
PL179150B1 (pl) 2000-07-31
HRP950611B1 (en) 2008-08-31
ATE365202T1 (de) 2007-07-15
YU80395A (sh) 1998-07-10
EE9500079A (et) 1997-04-15
SK162995A3 (en) 1997-07-09
EP0789069A3 (de) 1998-05-13
EP0789069A2 (de) 1997-08-13
RO119233B1 (ro) 2004-06-30
RS49806B (sr) 2008-08-07
HU9502797D0 (en) 1995-11-28
HU213255B (en) 1997-05-28
ES2289741T3 (es) 2008-02-01

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