• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A storage stable lubricating composition having improved anti-friction and anti-wear properties is provided by a base oil composition containing an additive combination of (1) a zinc dihydrocarbyl dithiophosphate, (2) an ester of a polycarboxylic acid and a glycol and (3) an ashless dispersant containing a high molecular weight aliphatic hydrocarbon oil solubilizing group attached thereto and wherein either the zinc or ester component or both are predispersed prior to adding them to the lubricating composition.
    公开号:SU936818A3
    申请号:SU782652605
    申请日:1978-08-21
    公开日:1982-06-15
    发明作者:Шоб Хэрольд；Эдвин Вэдди Вальтер
    申请人:Эксон Рисерч Энд Инджиниринг Компани (Фирма)；
    IPC主号:
    专利说明:

    one
    This invention relates to a storage stable lubricant. Memory containing complex add. Ku, I improve anti-friction and anti-wear properties.
    As is known, under the conditions referred to as boundary lubrication, it becomes necessary to lubricate two rubbing surfaces or otherwise protect them in order to prevent wear and ensure continuous movement. There, the 1. friction between the two surfaces increases the energy consumption required for the movement, and where the movement is an integral part of the energy conversion system, lubrication is highly desirable, reducing this friction to a minimum. It is also known that friction and H-Jnos can be reduced with varying success by adding appropriate additives or their combinations to a natural or synthetic lubricant.
    material. In the same way possible. provide continuous motion by adding one or more appropriate additives. five
    Metallic dialcdithiophosphates are a number of well-known additives that have anti-acid anti-wear properties.
    Known additives of this class are dialkyldithiophosphates of zinc, using e a .e in lubricant compositions ij.
    While zinc compounds
    5 have excellent oxidation stability and excellent anti-wear properties, but they increase or significantly limit the ability to lower
    20 between moving parts, therefore the use of compositions containing them leads to significant loss of energy when countering friction, even when anti-friction agents are included in the composition. 3 Lubricating compositions containing as additives mixtures based on MacnopacTBOpHNbix dimeric acids and polyols 2j and esters obtained by the interaction of components of this kind 3 have good anti-wear properties. However, the f3} blend may not be used in crankcase oils, since the acid component is corrosive and interacts with the usual zinc component, commonly used to reduce wear on the valve remover; while using cheaper, shorter chain glycols for the purpose of obtaining more economically viable mixtures, these glycols boil away under normal operating conditions. In addition, the ester components also tend to interact with zinc dialkyldithiophosphate and thus cause possible precipitation or precipitation from the lubricant composition in the form of droplets, i.e. it is an unstable connection. A lubricant composition containing base oil, metal dihydrocarbon dithiophosphate, in particular zinc di () alkyl dithiophosphate and dispersant, is a product of the interaction of polyalkenyl succinic acid and polyamine t. The known composition has detergent properties, however, it has unsatisfactory anti-wear properties. The aim of the invention is to reduce friction while maintaining other performance properties. The goal is achieved by the fact that the lubricant composition containing base oil, di (Cd-Cg) alkyldithio zinc phosphate and dispersant, additionally contains linoleic acid dimer ester and diethylene glycol and a dispersant selected from the group comprising the reaction product of succinic acid polyisobutenyl anhydride, pentaerythritol and polyamine, the product of the reaction of the anhydride of polyiso5 Tenh1 succinic acid and polyamine, the boron-containing product of the interaction of the anhydride polyisobutylene n-tartaric acid and polyamine, the product of the Effects of polyisobutenyl succinic anhydride and tris (hydroxymethyl) -aminomethane with the following components, wt.%: 8 Di () alkyl dithiophosphate of zinc Linoleic acid dimer ester and diethylene glycol Dispergator 0.25-6.3 Base oil Up to 100 The described additives can used in standard base oils along with other conventional additives and additives. However, an important condition of the invention is that in order to obtain formulations that are resistant to storage and retain their exceptional anti-friction and anti-wear properties, zinc dialkyldithiophosphate and linoleic acid dimer and diethylene glycol ester must be pre-dispersed. By predisposing, it is necessary to understand the separate mixing of the false ester or zinc component with an ashless dispersant, which can be dissolved in oil, to produce a substantially clear and fully miscible solution. This mixing process can be accelerated by heating the solution to a temperature in the order of. If this proprietary process is not carried out, the zinc component, after a certain period of time, begins to interact with complex ether or form a complex compound with it, falling out of solution at the same time, which entails a loss of stability and valuable compositional properties. In order to eliminate this disadvantage, the cncy dialkyldithiophosphate or the ester is dispersed separately from each other before being mixed with the other components in the lubricant composition. It should be noted that the residual additives can be added in a standard or conventional manner with the sole condition that the zinc and complex ester components are not combined with each other (or partially) before at least one of them is not pre-dispersed. The base oils used in the composition according to the invention include mineral lubricating oils, synthetic lubricating oils and their mixtures. Synthetic oils include complex-dyspiric oils, such as di (2-ethylhexyl) sebacate, azel.shpip adipate, complex layers of dicarboxylic acids, glycol or monobasic acids or monohydric alcohols, silicone oils , sulfide esters, organic carbonates and other known synthetic oils. In order to obtain the desired oil, to the oils-compositions according to the invention, other additives may be added. Such additives include commonly used additives: oxidation inhibitors — phenothiazine or phenyl-O-naphthylamine; anticorrosive agents — lecithin or sorbitan monooleate; detergents — barium phenol; lower hardening temperature; copolymers of vinyl acetate and formic acid esters and alcohols, and alcohols, and alcohols, and alcohols, and alcohols, alcohols, and alcohols, alcohols and alcohols. oils, viscosity index enhancers, olefin copolymers, polymethacrylates, and the like. In particular, the basic alkaline earth metal salts of organic sulfonic acid, petroleum sulfonic acid, or synthetic alkarylsulphonic acid are useful additives. Among petroleum sulfonates, the most useful products are those obtained by sulfonation of the corresponding petroleum fractions with subsequent removal of acid precipitates and purification of the product. Synthetic alkaryl sulphonic acids are usually obtained from alkyl benzenes, such as the Friedel-Crafts benzene reaction products with a polymer, for example tetrapropylene. Relevant acids so
    HOCH CK2 OCH CH OC {CH2) (CHg) 5 CH
    HOCH CH OCH CHiOC (CHj)
    In preparing various formulations, various dispersants are used.
    A. Ashless disperser is obtained by the interaction of polyisobutynyl succinic acid anhydride (APIBAC) with a polyisobutenyl residue (PIB) with an average molecular weight (CMBJ of about 900 with an equimolar amount of pentaerythritol and a smaller amount of polyamine mixture containing polyoxyprolineamineamine amine, i.e. 0.35 wt.%. Pro-
    (Cli.ljC
    Hi
    These types of products are supplied by the company Lubrisol Corporation under the trade name Lubrisol 6401.
    B. A borated ashless dispersant is obtained by condensation of 2.1 mol of APIBAC PIB with about 1300 MW dissolved in mineral oil Solvent Neutral 150 in order to obtain 50% solution, with i mol of tetraethylenepentamine. The ASHABAC solution is heated to about 150 ° C with stirring, the polyamine is loaded into the reactor for 4 hours, after which it can be obtained in the at86 by sulfonation of alkyl derivatives of such compounds as diphenylenoxidianthrene, phenolthioxin, diphenylenesulfine, phenothiazine, diphenyloxide, diphenylsulfide, diphenylamine, acetylamine, phenylthiazine, diphenyloxymethyl, diphenyloxymethyl, diphenyloxymethyl, and phenylthioxine. hydra of naphthalene, etc. Basic alkaline earth metal sulfonates are obtained by reacting an alkaline earth metal base, for example, lime, magnesium oxide or magnesium with sulfur in the presence of sulfonic acid or neutral metal sulfate sulfate, usually calcium, magnesium or barium salts. These neutral salts, in turn, can be obtained from free acids by reacting with an appropriate alkaline earth metapla or Hsa base by double decomposition of an alkali metal sulfonate by known methods. Example 1. To obtain formulations, engine oil of type 10 W, -40 SE, containing 1.5 wt./about E, is calculated on the total weight of the lubricating oil of zinc dialkyldithiophosphate (containing 80% of the active substance in mineral oil), in which the alkyl groups are are a mixture of such groups containing about 4-5 C atoms (obtained by reacting with a mixture of about 65% isobutyl alcohol and 35% amyl 0.1%, calculated on the total weight of ester lubricant obtained by sterilization of dimer acid and diztilen glycol structural According to formula 7 of the nitrogen atmosphere, light fractions are distilled off for 3 hours. The temperature is kept within the range of about 140-165 ° C. during the reaction and distillation. While the resulting product is released at about 135-165 ° C, 1.4 mol is added over 34 hours. boric acid in mineral oil, after which the light fractions are distilled off again in a nitrogen atmosphere.After frosting and evaporation in a rotary evaporator, the concentrate (50% by weight of the reaction product) contains about 1.46% by weight, nitrogen and 0.32% .% boron. B. The ashless dispersant is obtained by charging 1.0 mol ASHABAC with a PIB group with a CMB of about 1300 dissolved in 500 ml of Solvent Neutral 150, 0.36 mol of zinc acetate dihydrate as a promoter and 1.9 motif (oxymethyl) aminomethane ( TOAM in a glass reactor. After heating for 4 hours at approximately 168-174 ° C., the expected amount of water is obtained. After filtration and evaporation on a rotary evaporator, the concentration (50% by weight of the active ingredient) contains, according to analysis, 1.0% by weight of nitrogen. G. Bezsolnyh dispersant is prepared according to Example B, using 1.3 mol APIBN (beer has SMV about 900) without boronation. Contains 2.1 wt.% of nitrogen. Upon receipt of the target lubricant composition, the ester component of each composition is first dispersed in the following amounts of ashless dispersers: A 5.25 wt.% dispersant (mixture of 46.5 wt.% active ingredient in mineral lubricating oil) B and C 5.25 wt.% dispersant (mixture of 50 wt.% active ingredient in mineral lubricating oil) D 6.3 wt.% dispersant (mixture 50 wt.% by weight of active ingredient in mineral lubricating oil) Ester part of each composition (0, J wt.%) is dispersed in the description of dispersants for about 2 hours, stirring for 2 hours, followed by the addition of a crankcase oil containing anticorrosive agents, i.e. overbased magnesium sulphonate, a detergent additive, an improvement in the s88 index of an ethylene-propylene copolymer bone and a specified zinc dialkyldithiophosphate (1.5 wt.% - 80% active ingredient in mineral oil). Unlike formulations in which zinc dialkyldithiophosphate is added to the ester prior to prior dispersing one of these two components, all of the products described show resistance to storage for several months at room temperature. The composition containing the dispersant G is characterized by a somewhat reduced storage resistance, which appears to drop out in the form of droplets after two weeks at room temperature. Example2. In this experiment, two compositions, prepared analogously to Example 1 and containing dialkyl dithiophosphate dialster and ester, are tested for relative friction and wear, using the method with a ball or cylinder. For comparison purposes, standard oil of type 10 W - 30 SE, containing only a zinc component, is also tested for relative friction and wear. The device used in this experiment consists of a fixed metal ball working against a rotating ts1-tindra. The load on the ball and the rotation of the cylinder can be varied throughout the experiment or from experience to experience, as well as the duration of the test. However, as a rule, the steel against the steel, constant revolutions per minute and constant experience (load 4 kg, 0.26 rpm and 70 min in each case) work at a constant load. Actual wear is determined by measuring the volume metal removed from the cylinder compared with the standard. The actual friction is determined by the force required to make the rotation compared to the standard. 1. In the first composition, standard oil 10 W - 40 SE is mixed for lubrication (same as in example 1), containing dispersant G and 1.5% by weight of zinc dialkydithiophosphate (80% active ingredient in mineral oil and other standard additives , including anticorrosive additive, detergent, additive that improves the viscosity index, but without linoleic acid dimer ester and diethylene glycol.
    权利要求:
    Claims (1)
    [1]
    Claim
    ----------------------- eComposition ..... - ·· ·. . . -. - - - - ·.Relative ball / cylinder data Friction Wear 1 1.00 1.00 P 0.59 0.62 W 0.62 0.48
    In addition to the friction and wear test, where in the lubricant composition containing dialkyldithiophosphate and ester of dimer of linoleic acid and diethylene glycol, grades P and III show an improvement in these properties, composition 1 (without ester) and composition III are subjected to a standard test (Seguence III with Test in the engine in order to determine the deterioration of the valve puller (see table. 2) ..
    •Table
    A lubricating composition containing a base masld, zinc di (C ^ -Cj) -alkidithiophosphate and a dispersant, characterized in that, in order to reduce friction, the composition further comprises an ester of linoleic acid dimer and diethylene glycol and a dispersant selected from the group comprising the product 'the action of the polyisobutenyl succinic acid anhydride, pentaerythritol and polyamine, the reaction product of the polyisobutenyl succinic acid anhydride and polyamine, the boron-containing product of the interaction of the polyisobutenyl succinic acid anhydride and polyamine, the product of the interaction of the anhydride of polyisobutenyl succinic acid and Tris (oxymethyl) -aminomethane, in the following ratio of components, wt.%:
    Di (C ^ -C ^) zinc alkyldithiophosphate
    Linoleic Acid Dimer Diethylene Glycol Dispersant Base Oil
    1,5
    0.1
    0.25-6.3 to 100
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    申请号 | 申请日 | 专利标题
    US05/826,544|US4105571A|1977-08-22|1977-08-22|Lubricant composition|
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