DE1644929A1 - Organic lubricants - Google Patents

Description

DR. E. WIEGAND 8000 MUNICH 15, Q

MÖNCHEN NUSSBAUMSTRASSE 10 *

DIPL-ING. W. NIEMANN phone . 555476

HAMBURG ...... * - - - "

PATENT LAWYERS

13366/6? 9 / sw

MOBIL OIL COBPORATIOE Hexv Toric, - II.Ϊ. (Y, St.A.)

Organic - Lubricants;

This invention relates to improved organic lubricant compositions and, in one aspect, more particularly, to improved organic lubricant compositions in the form of liquid and solid hydrocarbonaceous materials that exhibit improved limited slip properties under operating conditions. The invention provides improved organic lubricant .Compositions In lorra of lubricating oils and greases to contain the additive substances which are in a position to give the begrenztet Sehmiermitteln improved properties in terms of sliding movements without compromising HÖchstdrucIceigenschaften the lubricant ■

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Among the desirable properties of lubricating oils and greases that use such oils as a lubricant base (lubricating vehicles) include the ability of the lubricant to be both satisfactory Extreme pressure characteristics under conditions such as high torque, low speed operation and Operation at high speeds, as well as satisfactory properties for limited sliding motion demonstrate. It has been found that in lubricants that have the desired level of extreme pressure properties like the presence of previously available additives to improve the limited sliding behavior the maximum pressure behavior of the lubricant worsens and also deteriorates the durability of the lubricant Has. -

The invention is based on the object, organic Lubricant compositions, especially in the form of liquid and solid hydrocarbons Materials, with a content of additives intended to bring about good properties with respect to limited Sliding movements without deterioration of the extreme pressure properties of the composition are able to · create. In connection with this, the invention aims the specification of an additive which, when incorporated into the aforementioned organic lubricants, has good properties with respect to limited sliding behavior, without

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to impair the iloVust printing property or the durability of the shoe. / '■ -

"Further characteristics and technical advantages of the invention will emerge from the description below. - - ~ ■>

It has been found that the aforementioned Au | j) be solved and the desired.properties.in such organ! rope compositions, especially in] JOrm of liquid and solid Sctoiermittel, can be achieved, -when the QOhraierBittel small hens of a Geaischs incorporated which consists of an alkyl phosphite and an ester a 3rettsäure and a fatty alcohol, wherein the Alkyl groups of phosphite and the alkyl groups of fatty acid and the fatty alcohol, each from about 12 to about ^ C contain carbon atoms, "as below explained r; ird contain the lubricants according to the invention, the good maximum pressure properties among \ inter-different . "Operating conditions show, in their preferred embodiments, a slight amount of the above specified additive mixture to improve the limited sliding behavior, usually from about C, 1 to about 40 wt .- ^ and preferably from about 0.5 to about 10 wt. , based on total weight, composition, Indians The alkyl phosphite itself is an additive device in a small amount from about 10 to about 90 wt. ~ 7o present, accordingly is the ester in an amount of about 90 to about 10 G-evr .'- v'J,

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based on the total weight of the öesisehsy present *

A special area of application is the running of liquid ICoIiI substances ^ which are used as a medium, including any kind of Koalenw & BSstofföl with SclraierraittelviBlcocitateiii These can be mineral or synthetic. © * Lubricating oils! aliphatic "phosphates", esters and diesters, "silicates", "SiI", oxaue., Ojcalkylather or Sister. The mineral lubricating oils used "medium as Schnier * can be any, ^■: have suitable Schniermittelvisfcösität, c * 3 'iiii range- of- etv / a 4C to about 6000 BSV at 38 ° east Cioo ° ff) and' in front of ^ ugeweise. about 4C. to about 2 ^ 0 S3U at 99 ° ö (2iC ^ö i?) * The oils can have viscosity indices from below 0 to et \ 7ä 100 or higher * Y viscosity indices from et \ va 70. gbip about 95% are preferred * they are medium molecular weight * some of these oils can, for example, be in the range from about 250 to 100% / a 50% from about 3 to about 140 and preferably from about 60 to about 120 special technical suitability as "air conditioning agents into which the aforementioned additives can be incorporated," as already stated, the aforementioned can have

Additive quantity: not also as a means "to improve the be«

limited sliding behavior in Sclimierfettausanimenstelluiigeii be incorporated * Such lubricating greases can be combinations of various abrasive bases with other «

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wrinkled thickeners or gelling agents. So. can lubricating greases in which the additive mixtures are particularly Any of the aforementioned conventional hydrocarbon oils of lubricating viscosity are effective as an oil base include and any of the foregoing mineral or synthetic lubricating oils of the type specified.

In forming improved greases to incorporate the aforementioned additive mixtures, the choice of using a mineral oil or a synthetic oil of lubricating viscosity can best be determined by the nature of the intended use of the grease and the environmental conditions involved. conditions take place. So, if no high temperature resistance is required of the finished lubricating grease, mineral oils with a viscosity of at least 40 SSU at · 38 ⁰ O (100 ⁰ ]?) And in particular those in the range from about 6C to about'-60OG SSU at 3S ⁰ C (10O ⁰ IO fall can be used with good success. In cases where synthetic carriers are used in place of or in combination with mineral oils as a lubricant base, numerous compounds of this type can be used successfully. Typical / synthetic carriers include: Polypropylene , Polypropylene glycol, trimethylolpropane ester, ITeopentyl and pentaerythritol ester, di (ethylhexyl) sebacate, di (2-ethylhexyl) adipate, dibutyl phthalate, fluorocarbons, silicate esters, silanes, esters of phosphorus

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BATH ORIGINAL

Acids, liquid ureas, 3 errocene derivatives, hydrogenated Mineral oils, chain-like polyphenyls, siloxanes and silicones (polysiloxanes), alkyl-substituted diphenyl ethers, e.g. butyl-substituted bis (p-plienoxy-phenyl) -ätlier, Phenoxyplienylätlier, etc.

The Schniermittelrundlagen. the aforementioned improved Lubricating greases according to the invention with a. salary on the described additive mixtures with a

a ^ grease-forming amount of a thickener combined. To this end, diverse materials can verv / ^ends: be. These thickening or crelling agents can include any of the conventional metal salts or soaps which are dispersed in the cutting base in grease-forming amounts to such an extent as to impart the desired consistency to the resulting fatty composition. ■ .Other thickeners that can be used in the grease compositions can be kichtseap thickeners, e.g.

"surface modified clays and Siliciuadioxyde, aryl ureas, GalGium complexes and various other materials include. In general, grease thickeners can not used for .melting.and. dissolving tend when in at the required temperature the particular environment concerned; from all other points of view. as is usually the case with thickening or gelation

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as V a

■ by jiöbleBriasse ^ stoffjaedieii aur Eildung VöilSeiiEiier-F rbisen D emit st viirdj in the production of the

o used according to the foundation v; earth « The iLEcylpriöSpIiitkönpoiaente of the novel. Additive snr Yerbesseruny of the limited sliding behavior It can then include any alkyl phosphite, the alkyl group ■ old about Ί2 to about 3Ö colilenstoffatonen. »- iT-ypi Rough examples of such AlJcylphosir-jite are Cleyl-Ilono- (or Di ~ ^ oleylpliö.sp! "> It ,. Ilono" (or 3i

j'lp ^ ospjiitj Eono »- (or t) i") dodecylphospflitj ΪΙοηΟ "

(or Di ^) lie2c: adecj-lpl? osphit ₎ 'iriülej-lpiiogpiiit, decylpaospalt and ¹ ΐΓίαθαβθ3 ^τ ίρ · .ιθν? ρ} · ι1ΐ; d.the Hiospxiite -Colinen ir ^ eii ^ oiiie Allcyl ^ ruppe within ties called. Ready it before. 12 «JC KolilenstoXf atorien nit linfacxi'- or peibindu, i ^ eii attft.'eisen * It köi.iaen aucii ^ iios-phite in. Be ^ traclitj the a lan ^ jkettiije Αΐΐ ^ ΐ ^^ ρρ © and ir-i rest

groups ttsv: * »ejitaal

You Sc-tej? ~ I: o :: iponeiite of the novel additive ^ fe «nisciie mafasst eiiien Ister WX® eiaea? ^ ettiacid and a 3? fatty oil Uo1 _% whose oev / eiü'2e Aiiij'i group η etr ^f a IS to etv / a 50 Üökienstöfxatöme and · the linfsoli «or DoppelMn? niJi2; eii auftjeioen can, ijrpisc-io examples For these Srstcr are Cle ^ loleatj .3t6aryl odecati Getadeeyioieat * Zsziv

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Particularly suitable 8.1S Esterkonponente are mixtures of such esters which are available in commerce in the form of Vialratöl ". The composition gemä.2 the invention. _Can aucli acidic alkali metal phosphates (alkyl acid phosphates") with about Λ to about 13 carbon atoms or straight-chain amines containing from about G to about 30 carbon atoms.

The novel additive mixtures according to "the invention are able, when incorporated in lubricants, to give them limited sliding properties without impairing their maximum crucible properties or impairing their stability, and they thus meet a need" that is used in this particular field of - Lubricant application that has existed for a long time. The effectiveness of these novel additive mixtures can perhaps be explained by the fact that - in contrast to fatty materials including esters of fatty acids and alcohols, they were already used earlier as additives for limited sliding behavior but which at the same time lead to a deterioration, the maximum clinging properties of the cutting agent tend - the presence of the alkyl phosphite components to a match between the lubricant and the other with regard to the fulfillment, a twofold. Function, namely that of an extreme pressure agent and that of a friction modifier. So there is evidently a G; fnergistic Virkun .; r, v; isches of the alkyl

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phosphite and the ester component of the invention Additive vegetables to improve the limited GIeIt behavior before.

The invention is illustrated below by way of examples further illustrated. The examples show the effectiveness of the novel additives. To improve the limited sliding behavior - when incorporated into finished KIL-L-21O5B lubricant without affecting the Hocast printing properties or the durability of these ■ lubricants. Any of the lubricant compositions formed vrarde-the standard gear test GBG Ij-37 with high torque and low speed (hlgh-toraue low speed gear test) and the standard

GHG L-42 -:.

High speed and shock test der Subject to specification 1IL-L-2105B. . ■.:.; ■■., .'...

Example 1 _: -

An SAE 90 basic Schniler oil which, in addition to the MIIj-L-21Q5B additive package, contained 5% of a mixture © of bioleyl phosphite ⁵ and mineral oil (in a weight ratio of 2: Ό, was used separately for the two aforementioned tests QWd L- ^ 7 and subject to GEG L-42, it met the requirements of the standard MIL-L-21D5B specification for gear lubricants in each case

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Example - 2

A 3AE 90 base lubricating oil that is in addition to the normal LIIL-L-21O5B additive package 3.4 Ge?;. ■ - £> of the ■. aforementioned mixture of dioleylphosph.it and yialrate oil according to Example 1 and also Qleylamiri (in a weight ratio of dioleyl phosphite and whale oil to olesrlajnin from 2: 1 brio. 0.4 x was separated from the two above Subjected to CHC L-37 and CRCL-4-2 tests; in each Ealle it met the requirements of the standard specification HIL-L-21053 for gear oil lubricants, from which the suitability for use for fulfillment requirements (factory fill use) of axes with limited sliding behavior. and conventional axes emerges.

Example 3 ~

. To test the limited sliding properties ■ of ski equipment with a content of the new additives tivgeniischen according to the invention was the same lubricant composition, as examined in example Ϊ the following Bauer test for limited sliding

■ "Subject to behavior (full-scale limited-slip test).

Approaches to the aforementioned gear lubricant lubricant were used in the 33 differentials with limited-slip differentials of QldsmoMle vehicles,

- Years of construction 1966 and 1967, checked. The automobiles were on a course in the shape of an 8 with a low ¹ average

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speed over a distance of 644- km (400 miles) Found aliren * Y / hile this! rides were observations on! fixed position any noise, chatter or vibration (noise or chatter), starting from the differentials, Made, ^ ^as occurrence of Gerc Iic, hangover or vibrations indicate a lack of quality in the oil. During the total of over 644 mn, no noise, rattling, or shaking was observed at any point in time.

The test runs described above were then repeated, while the oil was kept at a temperature of 121 ° G (25 ¹ ^ ⁰ S ¹ ) (by insulating the axles of the automobiles), in order to test the thermal resistance of the oil. It should be noted that a lubricant sometimes has limited useful sliding properties at relatively low temperatures, but the lubricant can degenerate at a relatively high temperature ". In the tests performed here Pahrten no noise, chatter and vibrations were observed at any time during the Jährten, although the oil was maintained at said relatively high temperature of 21.1 ⁰ C P).

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Example 4- "-

A lubricant similar to that of the introductory example 1 was prepared - with the exception that instead of the additive mixture for limited slip properties from the dioleylphosph.ite and whale oil, 5% by weight of a commercially available additive compound division for limited slip / behave with the following properties incorporated vmrde: -_

»Specific weight 0.92

. ο

Viscosity, SUS at 99 O (210 °]?) 4-9.0

g / 1 (Lbs / 0al) - 925 (7.7)

Phosphorus content, % - 2.2 "."

Nitrogen content, % ' . 0.4-6

llettDalization number. _... - 76.2. -

The gear oil with the one described above. Commercially available additive mixture for limited sliding behavior _: was subjected to the aforementioned 644 km (400 hours) rapid tests for limited sliding behavior; it failed in every IPalle in these tests, after only 274- km (170 mil 'it) the test drive were Eatterersclieiiiungen and vibration (chatter) on.

Example -5 ^as

A commercially available factory fill lubricant with limited sliding behavior (factory fill limitedslip lubricant composition), consisting of a MIL-L-21O5B

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Gear oil based on iron zinc dialkyldithiophosphate - sulfur - chlorine - compilation and one. Additive for limited sliding behavior with the following composition, in% by weight,

Sulfur "2.25-2.70

Phosphorus 0.30-0.31

Chlorine 1.50-1.55

Nitrogen _ 0.09

Zinc 0.30-0.33

was also checked; it passed neither the CRC L-37 test nor the CRC L-42o test the oil unsatisfactory in the 64-4 km (400 miles) quick tests for limited sliding behavior,

As can be seen from the data in the preceding examples, these are the improved organic lubricants according to the invention with a Gehalf to the described novel additive devices for limited Sliding behavior exceptionally powerful as a lubricant over a wide range of operating conditions and they meet the requirements of the standard tests in fully. The same technical gate pulls are achieved when lubricating oils with a content of the above-described Additivge.niBchen for limited sliding behavior with gewünnchteri thickeners to improved firmness Tying means are combined, like "in the compilation of greases.

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V; eiterain can be the improved oceanic Lubricants according to the invention, if included, various other additives odex · Geiaische of such additional Additives included to make your si ^ eiiscaaTten to improve further · »So the lubricants can according to the invention for example, additives such as high pressure substances, Antioxidants, anti-wear agents, anti-wear agents, Anti-foaming agent, anti-foaming agent and the like included. Furthermore, other additives can also be used for limited gliding behavior, e.g. long-chain aaine or Derivatives thereof, long-chain phosphates or phosphates or their derivatives, metal salts or their derivatives, long-chain Glycerides and long-chain carboxylic acids, or their derivatives, in the lubricants or additives according to the invention incorporated / to be incorporated. '-

^: 7 ^: '- -' - ■ 7 ^ ₁ ■■ =. ■ .- ORIGINAL BATHROOM

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Claims (3)

Claims 1. Organic lubricants with a Lubricants exhibiting lubricating properties tel base and a content of an additive Improvement of the limited G-conductivity ^. through this characterized in that the additive is an alkyl phosphite and a]? ettsäure-Eettalkohol-Ester timfasst, wherein the alkyl group in dea phosphate, the acid or the alcohol contains 12 - IQ carbon atoms. 2. Lubricant according to claim 1, characterized in that the additive makes up 0.5 - IC · wt .-% of the Schnierraittels .- ■ - .. 3. Lubricant according to claim 1 or 2, characterized in that the alkyl phosphite is composed of a cleyl, octadecyl, dodecyl or mixed Consists of alkyl phosphite, 4 «Schiaiermittel according to one of claims 1 - ρ _Λ characterized in that the ester comes from whale oil. 109823/1432