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DE1005670B - Lubricating oil - Google Patents

Lubricating oil

Info

Publication number
DE1005670B
DE1005670B DES47221A DES0047221A DE1005670B DE 1005670 B DE1005670 B DE 1005670B DE S47221 A DES47221 A DE S47221A DE S0047221 A DES0047221 A DE S0047221A DE 1005670 B DE1005670 B DE 1005670B
Authority
DE
Germany
Prior art keywords
lubricating oil
percent
oil according
weight
salt
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.)
Pending
Application number
DES47221A
Other languages
German (de)
Inventor
David William Golothan
Keith Fleming
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.)
IASHELLIA RES Ltd
Original Assignee
IASHELLIA RES Ltd
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 IASHELLIA RES Ltd filed Critical IASHELLIA RES Ltd
Publication of DE1005670B publication Critical patent/DE1005670B/en
Pending legal-status Critical Current

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    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M1/00Liquid compositions essentially based on mineral lubricating oils or fatty oils; Their use as lubricants
    • C10M1/08Liquid compositions essentially based on mineral lubricating oils or fatty oils; Their use as lubricants with additives
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    • C10M2203/00Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
    • C10M2203/06Well-defined aromatic compounds
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    • C10M2205/00Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
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    • C10M2205/00Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
    • C10M2205/22Alkylation reaction products with aromatic type compounds, e.g. Friedel-crafts
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    • C10M2207/00Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
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  • Organic Chemistry (AREA)
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Description

DEUTSCHESGERMAN

Die Erfindung bezieht sich auf Schmieröle, die insbesondere zur Verwendung bei Verbrennungskraftmaschinen zum Schutz des Motors gegen Rosten und andere Formen der Korrosion während des Stilliegens geeignet sind.The invention relates to lubricating oils, particularly for use in internal combustion engines to protect the engine against rusting and other forms of corrosion when it is idle are suitable.

Zur Lösung dieses Problems hat man bereits Antirostmittelmischungen empfohlen, die aus Diestern von gewissen Dicarbonsäuren, z. B. Dibutyladipinsäureester, und solchen organischen Säuren bestehen, welche in Wasser unlösliche Metallseifen bilden. Hierbei können zur Erhöhung der Rostschutzwirkung gegebenenfalls auch noch kleine Mengen von Teilestern mehrwertiger Alkohole zugesetzt werden.Anti-rust mixtures are already available to solve this problem recommended that from diesters of certain dicarboxylic acids, z. B. Dibutyladipic acid ester, and those organic acids which form water-insoluble metallic soaps. Here you can to increase the anti-rust effect, small amounts of partial esters of polyvalent may also be added Alcohols are added.

Auch ist die Kombination eines Sorbitanmonoesters einer aliphatischen Monocarbonsäure mit 16 bis 18 Kohlenstoffatomen im Molekül und eines Glykolteilesters einer Fettsäure als Mittel zur Verhütung der korrodierenden Einwirkung von Schmierölen in feuchter Luft und bei Anwesenheit von Salzwasser auf Metallteile beschrieben.Also the combination of a sorbitan monoester of an aliphatic monocarboxylic acid with 16 to 18 Carbon atoms in the molecule and a partial glycol ester of a fatty acid as an agent for preventing the Corrosive action of lubricating oils in humid air and in the presence of salt water on metal parts described.

Ferner ist die verschleißvermindernde Wirkung eines Zusatzes von weniger als 1 % eines öllöslichen aliphatischen Teilesters eines mehrwertigen Alkoholes und von 1 bis 5°/0 eines Erdalkalisalzes von einem Alkylphenolsulfid oder einem sulfurierten Alkylphenol zu einem Schmieröl für Kraftfahrzeuge bekannt.Further, the wear-reducing effect is an addition of less than 1% of an oil soluble aliphatic ester of a polyhydric parts Alkoholes and from 1 ° to 5 ° / 0 known an alkaline earth salt of an alkylphenol sulfide or a sulfurized alkyl phenol to a lubricating oil for motor vehicles.

Es wurde nun gefunden, daß die an sich noch nicht befriedigenden rostschützenden Eigenschaften von Teilestern mehrwertiger Alkohole und insbesondere der 4- bis 6-wertigen Alkohole in Schmierölen ganz entscheidend verbessert werden können, wenn man denselben gleichzeitig eine kleinere Menge eines öllöslichen Salzes einer aromatischen Carbonsäure einverleibt.It has now been found that the per se unsatisfactory anti-rust properties of partial esters polyhydric alcohols and especially the 4- to 6-valent alcohols in lubricating oils are crucial can be improved if you use the same at the same time a smaller amount of an oil-soluble Incorporated salt of an aromatic carboxylic acid.

Es ist zwar schon vorgeschlagen worden, Teilester mehrwertiger Alkohole in rostverhindernden Mischungen zu verwenden, manchmal sogar in Verbindung mit verschiedenen Metallsalzen. Es wurde jedoch überraschenderweise festgestellt, daß die einfachen Teilester, wie Glycerinmonoölsäureester und Glycerinmonostearinsäureester keinen ausreichenden Schutz gegen eine Motorkorrosion ergeben. Dagegen bewähren sich die erfindungsgemäß eingesetzten Teilester der höheren, mehrwertigen Alkohole, nämlich solcher mit 4, 5 oder 6 Hydroxylgruppen im Molekül in dieser Hinsicht ganz ausgezeichnet. So entspricht eine in den Beispielen beschriebene und mit A bezeichnete Mischung allen Anforderungen bei der Untersuchung nach der Prüfmethode »Ministry of Supply DEF/2181 specification for aircraft engine preservative oils«, einschließlich der Prüfung der Korrosion gegenüber nicht Eisenmetallen, während eine ähnliche Mischung, welche aber Glycerinmonoölsäureester an Stelle des Sorbitmonoölsäureesters enthält, bei dem gleichen Korrosionstest sowohl in bezug auf Aluminium als auch auf Kupfer versagt.It has already been proposed to use partial esters of polyhydric alcohols in rust-preventing mixtures to be used, sometimes even in conjunction with various metal salts. However, it was surprising found that the simple partial esters, such as glycerol monooleic acid ester and glycerol monostearic acid ester do not provide adequate protection against engine corrosion. On the other hand, they prove themselves Partial esters of the higher, polyhydric alcohols used according to the invention, namely those with 4, 5 or 6 hydroxyl groups in the molecule are excellent in this regard. So corresponds to one described in the examples and the mixture designated with A meets all requirements for the examination according to the test method "Ministry of Supply DEF / 2181 specification for aircraft engine preservative oils «, including testing for corrosion against non-ferrous metals, while a similar mixture, but which contains glycerol monooleic acid ester instead of the sorbitol monooleic acid ester, failed the same corrosion test for both aluminum and copper.

Anmelder:
»Shell« Research Limited, London
Applicant:
"Shell" Research Limited, London

Vertreter: Dr. K. Schwarzhans, Patenanwalt,
München 38, Romanplatz 9
Representative: Dr. K. Schwarzhans, patent attorney,
Munich 38, Romanplatz 9

Beanspruchte Priorität:
Großbritannien vom 27. Januar 1955
Claimed priority:
Great Britain January 27, 1955

David William Golothan, Chester, Cheshire,
und Keith Fleming, Sanderstead, Surrey
David William Golothan, Chester, Cheshire,
and Keith Fleming, Sanderstead, Surrey

(Großbritannien),
sind als Erfinder genannt worden
(Great Britain),
have been named as inventors

Die erfindungsgemäß eingesetzten Metallsalze einer aromatischen Carbonsäure sind gleichfalls an sich als Schmiermittelzusatz bekannt, doch üben sie selbst keinerlei rostvermindernde Wirkung aus. Es ist daher als besonders überraschend anzusehen, daß diese Stoffe die Antircstwirkurg der Teilester günstig beeinflussen.The metal salts of an aromatic carboxylic acid used according to the invention are also per se as Lubricant additives are known, but they themselves have no rust-reducing effect. It is therefore to be regarded as particularly surprising that these substances have a favorable influence on the antirectivity of the partial esters.

Die Ölbasis, welche den Hauptbestandteil des Schmieröls gemäß vorliegender Erfindung darstellt, kann entweder ein synthetisches oder ein mineralisches Schmieröl sein. Die Viskositätseigenschaften geeigneter öle können zwischen denjenigen von SAE-5W-Ölen und SAE-The oil base which is the main component of the lubricating oil according to the present invention can be either be a synthetic or a mineral lubricating oil. The viscosity properties of suitable oils can between those of SAE 5W oils and SAE

60-Ölen schwanken, Öle mit hohen Viskositäten, wie SAE-40-, -50- und -60-öle, werden aber bevorzugt. Die Mineralschmieröle können aus allen Arten von rohen Erdölen, wie naphthenischen, paraffinischen oder asphaltischen Rohölen herstammen, wobei sie im allgemeinen eine oder mehrere der üblichen Raffinationsbehandlungen durchgemacht haben. Gemische aus mineralischen ölen und fetten Ölen, wie Rizinusöl und Specköl, können ebenso verwendet werden wie synthetische Schmieröle und Gemische derselben mit mineralischen und bzw. oder fetten Ölen. Geeignete synthetische Schmieröle können durch Polymerisieren von Olefinen oder durch Alkylieren von aromatischen Kohlenwasserstoffen mit Olefinen oder mit Alkylhälogeniden in Anwesenheit eines Friedel-Crafts-Katalysators hergestellt werden.60 oils vary, but oils with high viscosities such as SAE 40, -50 and -60 oils are preferred. the Mineral lubricating oils can be made from all types of crude petroleum, such as naphthenic, paraffinic, or asphaltic Crude oils, generally having one or more of the usual refining treatments have gone through. Mixtures of mineral oils and fatty oils such as castor oil and bacon oil can be used as well as synthetic lubricating oils and mixtures thereof with mineral and resp. or fatty oils. Suitable synthetic lubricating oils can be prepared by polymerizing olefins or by Alkylation of aromatic hydrocarbons with olefins or with alkyl halides in the presence a Friedel-Crafts catalyst.

Auch organische Ester, z. B. Dialkylester von Dicarbonsäuren, wie Sebacinsäure- oder Adipinsäure-di-(2-äthylhexyl)-ester, sowie die Alkyl- oder Alkarylester anorganischer Säuren, z. B. Trioctyl- oder Trikresylphosphat und Tetraoctylsilicat und Polymere oder MischpolymereOrganic esters, e.g. B. dialkyl esters of dicarboxylic acids, such as sebacic acid or adipic acid di- (2-ethylhexyl) ester, as well as the alkyl or alkaryl esters of inorganic acids, e.g. B. trioctyl or tricresyl phosphate and tetraoctyl silicate and polymers or copolymers

609 867/356609 867/356

3 43 4

von Polyalkylenglykolen bzw. die Ester und Äther wichtsprozent, berechnet auf das Gesamtgemisch, ver-of polyalkylene glycols or the esters and ethers weight percent, calculated on the total mixture,

derselben, sowie auch Polyorganosiloxane sind im Rah- wendet.the same as well as polyorganosiloxanes are used in the context.

men der vorliegenden Erfindung geeignet. Die Schmier- Die guten schützenden Eigenschaften der erfindungsölbasis liegt im allgemeinen in einer Menge von 80 bis gemäßen Schmieröle mit einem Gehalt an einem Teilester 97,5 Gewichtsprozent, speziell von 85 bis 95 Gewichts- 5 eines mehrwertigen Alkohols und an einem öllöslichen prozent, des fertigen gemischten Schmieröles vor. Salz einer aromatischen Carbonsäure können noch Die öllöslichen Salze der aromatischen Carbonsäuren weiter verbessert werden, wenn man der Schmierölkönnen Metallsalze sowie Salze organischer Basen, z. B. mischung als vierte Komponente ein öllösliches Metallsalz, der Amine sein.';Calcium-, Barium-, Zink-und Magnesium- vorzugsweise ein öllösliches Alkalisalz, einer organischen salze sind besonders wirksam. Unter einer aromatischen i° Sulfonsäure einverleibt. Solche Verbindungen sind an Carbonsäure wird hier eine Verbindung verstanden, sich als Zusatzstoffe für Schmiermittel bekannt, doch welche einen Carbonsäurerest direkt an einen aro- üben sie im vorliegenden Fall einen speziellen Effekt aus. matischen Ring gebunden enthält. Vorzugsweise ent- Die verwendeten öllöslichen Salze organischer Sulfonhalten dieselben Substituenten, welche die Löslichkeit säuren können sich ableiten von Alkalimetallen, Erdder Salze in dem Schmieröl begünstigen. Sehr geeignet 15 alkalimetallen, insbesondere Calcium oder Barium, oder für die Zwecke der Erfindung sind die alkylierten aro- von organischen stickstoffhaltigen Basen, z. B. Aminen, matischen Carbonsäuren, die halogenierten aromatischen wie Octadecylamin. Sehr geeignet sind z. B. öllösliche Carbonsäuren, z. B. Chlor- und Brombenzoesäuren, und Erdölsulfonsäuren, Triisopropylnaphthalinsulfonsäure die alkylierten oxyaromatischen Carbonsäuren, wie die und Di-»wachs<i-benzolsulfonsäuren. Der ."Wachs-f-Subalkylierten Salicylsäuren. ao stituent ist eine langkettige Kohlenwasserstoffgruppe, Besonders bevorzugt sind die normalen oder basischen die sich von Paraffinwachs ableitet. Die Sulfonsäuren Salze alkylierter Salicylsäuren, wie ein normales oder werden vorzugsweise in Mengen nicht über 10 Gewichtsbasisches Aluminium-, Barium-, Calcium-, Zink-, Stron- prozent, berechnet auf das Gesamtgemisch, verwendet, tium- oder Zinnsalz einer Octadecylsalicylsäure bzw. und es ist besonders zweckmäßig, sie in Anteilen von Stearylsalicylsäure oder eines Gemisches alkylierter 25 l,25°/0 bis 7,5 Gewichtsprozent zu verwenden. Salicylsäuren, in welchen die Alkylgruppen von 8 bis Gewünschtenfalls können in den neuen zusammen-18 Kohlenstoffatome enthalten. gesetzten Schmierölen auch an sich bekannte und übliche Solche Salze können aus Natriurnalkylphenolaten Antioxydationsmittel vom Phenol- oder Amintyp mit unter Einleiten von Kohlendioxyd nach der Kolbe- Vorteil verwendet werden, wie öllösliche Alkylphenole, Schmidt-Reaktion und Umsetzen der so gebildeten 30 Naphthole und ihre Schwefelanalogen. Diese Zusätze Alkylsalicylate mit einer entsprechenden Metallver- werden gewöhnlich in Mengen von 0,01 bis 0,5 Gewichtsbindung hergestellt werden. Da die Kolbe-Schmidt- prozent, berechnet auf das Gesamtgemisch, verwendet. Reaktion im allgemeinen nicht vollständig verläuft, Andere wahlweise zu verwendende Zusätze sind insenthalten die so erzeugten Produkte im allgemeinen besondere Antikorrosionsmittel der gebräuchlichen Art, noch etwa 20 bis 25% nicht umgewandelter Alkyl- 35 wie Mercaptobenzthiazol, die Dicarbonsäuren mit 16 phenolate. Falls basische Salze mehrwertiger Metalle oder mehr Kohlenstoffatomen, die organischen Verhergestellt werden sollen, so muß das die Alkylsalicylate bindungen, welche einen Säurerest in nächster Nachbarenthaltende Reaktionsgemisch nach dem Ansäuern mit schaft zu einer Nitril-, Nitro- oder Nitrosogruppe enteinem Überschuß eines Hydroxyds oder Oxyds der be- halten, z. B. cc-Cyanstearinsäure, sowie aliphatische und treffenden Metalle behandelt werden. 40 heterocyclische Amine.Men of the present invention are suitable. The lubricating The good protective properties of the invention oil base is generally in an amount of 80 to proper lubricating oils with a content of a partial ester 97.5 percent by weight, especially from 85 to 95 percent by weight of a polyhydric alcohol and an oil-soluble percent of the finished mixed lubricating oil. The oil-soluble salts of the aromatic carboxylic acids can be further improved if the lubricating oils can contain metal salts and salts of organic bases, e.g. B. Mixture as the fourth component an oil-soluble metal salt, the amines. '; Calcium, barium, zinc and magnesium, preferably an oil-soluble alkali salt, an organic salt are particularly effective. Incorporated under an aromatic sulfonic acid. Such compounds on carboxylic acid are understood here as a compound known as additives for lubricants, but which have a carboxylic acid residue directly on an aro- they exert a special effect in the present case. Contains matic ring bound. The oil-soluble salts of organic sulfones used contain the same substituents which can promote the solubility of acids derived from alkali metals, the salts in the lubricating oil. Very suitable alkali metals, especially calcium or barium, or for the purposes of the invention are the alkylated aro- of organic nitrogenous bases, eg. B. amines, matic carboxylic acids, the halogenated aromatic such as octadecylamine. Very suitable are e.g. B. oil-soluble carboxylic acids, e.g. B. chloro- and bromobenzoic acids, and petroleum sulfonic acids, triisopropylnaphthalenesulfonic acid, the alkylated oxyaromatic carboxylic acids, such as the and di- »wax <i-benzenesulfonic acids. The. "Wax-f-subalkylated salicylic acids. Ao substituent is a long-chain hydrocarbon group, the normal or basic ones derived from paraffin wax are particularly preferred. The sulfonic acids are salts of alkylated salicylic acids, such as normal or preferably in amounts not more than 10 weight basic aluminum. , Barium, calcium, zinc, stron percent, calculated on the total mixture, used, tium or tin salt of an octadecylsalicylic acid or and it is particularly expedient to use them in proportions of stearylsalicylic acid or a mixture of alkylated 25 l, 25% / 0 to 7.5 percent by weight to be used. Salicylic acids in which the alkyl groups can contain from 8 to 18 carbon atoms in the new composed lubricating oils, if desired Introducing carbon dioxide after the Kolbe advantage to be used, such as öllö sliche alkylphenols, Schmidt reaction and conversion of the naphthols thus formed and their sulfur analogues. These additives, alkyl salicylates with a corresponding metal content, are usually produced in amounts of 0.01 to 0.5 weight bond. Because the Kolbe-Schmidt percent, calculated on the total mixture, is used. Reaction generally does not go to completion. Other optional additives to be used include the products thus produced, generally special anticorrosive agents of the customary type, also about 20 to 25% unconverted alkyl 35 such as mercaptobenzothiazole, the dicarboxylic acids with 16 phenolate. If basic salts of polyvalent metals or more carbon atoms are to be produced organically, this must be the alkyl salicylate bonds which, after acidification, form a nitrile, nitro or nitroso group with an acid residue in the immediate vicinity of the reaction mixture from an excess of a hydroxide or oxide keep, z. B. cc-cyanosearic acid, as well as aliphatic and relevant metals are treated. 40 heterocyclic amines.

Das öllösliche Salz einer aromatischen Carbonsäure Die nachstehend angegebenen Gemische stellen typischeThe Oil-Soluble Salt of an Aromatic Carboxylic Acid The following mixtures represent typical ones

wird im allgemeinen in einer solchen Menge verwendet, Schmieröle im Sinne der Erfindung dar. Die angegebenenis generally used in such an amount, lubricating oils within the meaning of the invention. The specified

daß es 5 Gewichtsprozent, berechnet auf das Gesamt- Teile beziehen sich auf das Gewicht,that there are 5 percent by weight, calculated on the total, parts are based on the weight,

gemisch, nicht übersteigt. Vorzugsweise wird es in einer .mix, not exceed. Preferably it will be in one.

Menge von 0,1 bis 2 Gewichtsprozent verwendet. 45 Mischung AAmount used from 0.1 to 2 percent by weight. 45 Mixture A

Die in dem erfindungsgemäßen gemischten Schmieröl 89,5 Teile mit Lösungsmittel raffiniertes Schmieröl mitThe lubricating oil refined with solvent in the mixed lubricating oil of the present invention was 89.5 parts

verwendeten Teilester leiten sich ab von den vier- einer Viskosität von 330 Sek. Redwood I bei 60°, 5 TeilePart esters used are derived from the four - a viscosity of 330 sec. Redwood I at 60 °, 5 parts

wertigen, fünfwertigen oder sechswertigen Alkoholen, Sorbitmonoölsäureester, 0,5 Teile eines Gemisches ausvalent, pentavalent or hexavalent alcohols, sorbitol monooleic acid esters, 0.5 part of a mixture

z. B. von Diglycerin, Pentaerythrit, Sorbitan, Arabit, Calciumalkylsalicylaten mit 14 bis 18 Kohlenstoffatomenz. B. of diglycerol, pentaerythritol, sorbitan, arabitol, calcium alkyl salicylates with 14 to 18 carbon atoms

Mannitan, Mannit, Sorbit und Dulcit. Es können auch 50 in den Alkylgruppen, 5 Teile öllösliche Natriumnaphtha-Mannitol, mannitol, sorbitol and dulcitol. There can also be 50 in the alkyl groups, 5 parts of oil-soluble sodium naphtha

Polyoxyalkylenderivate dieser Alkohole verwendet sulfonate.Polyoxyalkylene derivatives of these alcohols used sulfonates.

werden. Die Veresterung wird derart durchgeführt, daß Mischung B mindestens eine und vorzugsweise 2 oder 3 der Hydroxylgruppen des Alkoholmoleküls nicht in Reaktion treten. 94,5 Teile mineralisches Schmieröl SAE-20, 5 Teile Vorzugsweise enthalten die verwendeten Carbonsäuren 55 Sorbitmonoölsäureester, 0,5 Teile eines Gemisches aus 6 bis 30 Kohlenstoffatome im Molekül, wie Capron-, Calciumalkylsalicylaten mit 14 bis 18 Kohlenstoffatomen Laurin-, Palmitin-, Stearin-, Öl-, Leinöl-, und Arachin- in den Alkylgruppen. säure, Naphthensäuren sowie die Säuren, welche auswill. The esterification is carried out in such a way that mixture B has at least one and preferably 2 or 3 of the hydroxyl groups of the alcohol molecule do not react. 94.5 parts SAE-20 mineral lubricating oil, 5 parts The carboxylic acids used preferably contain 55 sorbitol monooleic acid esters, 0.5 parts of a mixture 6 to 30 carbon atoms in the molecule, such as capron, calcium alkyl salicylates with 14 to 18 carbon atoms Laurin, palmitin, stearin, oil, linseed oil, and arachin in the alkyl groups. acid, naphthenic acids as well as the acids which are made up of

Harz oder Tallöl oder durch Oxydation von Erdöl- Mischung LResin or tall oil or by oxidation of a petroleum mixture L

produkten erhalten worden sind. Natürlich vorkommende 60 96,5 Teile eines mineralischen Schmieröls SAE-20,products have been received. Naturally occurring 60 96.5 parts of a mineral lubricating oil SAE-20,

Gemische von Fettsäuren können ebenfalls zur Her- 3 Teile Sorbitmonoölsäureester, 0,5 Teile eines GemischesMixtures of fatty acids can also be used to prepare 3 parts of sorbitol monooleic acid ester, 0.5 part of a mixture

stellung der Teilester verwendet werden. aus Calciumalkylsalicylaten mit 14 bis 18 Kohlenstoff-position of the partial esters can be used. from calcium alkyl salicylates with 14 to 18 carbon

Besonders wirksame Teilester sind: Sorbitmonooleat, atomen in den Alkylgruppen.Particularly effective partial esters are: Sorbitol monooleate, atoms in the alkyl groups.

Sorbitanmonooleat, Mannitanmonooleat und -mono- Um den durch Anwendung eines aromatischen Carbon-Sorbitan monooleate, mannitan monooleate and mono-

palmitat, der Monoester von Baumwollsamenfettsäuren 65 säuresalzes in Verbindung mit einem Teilester gemäßpalmitate, the monoester of cottonseed fatty acids 65 acid salt in connection with a partial ester according to

und Polyoxyäthylensorbit, Penthaerythritmonostearat vorliegender Erfindung erzielten Vorteil und auch denand polyoxyethylene sorbitol, pentaerythritol monostearate of the present invention achieved the advantage and also the

sowie die Teilester aus Pentaerythrit und Sojabohnenöl- weiteren durch zusätzliche Einverleibung eines orga-as well as the partial esters from pentaerythritol and soybean oil - further through the additional incorporation of an organic

fettsäureester. rüschen Sulfonats erzielten Vorteil aufzuzeigen, wurdenfatty acid esters. frilly sulfonate to show the benefit achieved

Die Teilester werden gewöhnlich in einer Menge von die Mischungen A und C mit einer Mischung verglichen,The partial esters are usually compared in an amount of the mixtures A and C with a mixture,

0,5 bis 10 Gewichtsprozent, vorzugsweise 2 bis 7 Ge- 70 die aus einem SAE-20-mineralischen Schmieröl und0.5 to 10 percent by weight, preferably 2 to 7 percentages of an SAE-20 mineral lubricating oil and

lediglich 5 Gewichtsprozent Sorbitmonoölsäureester bestand. Der Vergleich wurde durch Prüfung der Öle auf Antirosteigenschaften in einem Motor durchgeführt. Der Motor wurde mit jedem Öl 3 Stunden im Laufen erhalten, die Zylinderbuchse entfernt und 10 Tage in einen Feuchtraum gebracht und täglich auf Rostwirkung geprüft. Die Beurteilung erfolgte mit bloßem Auge nach einer Skala, bei welcher 0 starke Verrostung und der Wert 10 vollständige Rostfreiheit bedeuten. Die erhaltenen Daten sind in der nachstehenden Tabelle zusammengestellt.only 5 percent by weight of sorbitol monooleic acid ester existed. The comparison was made by examining the oils Antirust properties carried out in an engine. The engine was running for 3 hours with each oil received, removed the cylinder liner and placed in a damp room for 10 days and checked for rust every day checked. The assessment was made with the naked eye on a scale in which 0 and severe rusting the value 10 means complete freedom from rust. The data obtained are in the table below compiled.

Mischungmixture Rostbeurteilung mitRust assessment with Mischung CMixture C SAE-20 MineralSAE-20 mineral Tage LagerungDays of storage schmieröllubricating oil der Zylinderthe cylinder 9,19.1 5,55.5 + 5 Gewichts
prozent
Sorbitmonoöl
+ 5 weight
percent
Sorbitol mono oil
buchse im
Feuchtraum
socket in
Damp room
8,78.7 AA. 5,25.2 säureesteracid ester
8,78.7 4,84.8 5,85.8 11 8,68.6 4,64.6 4,94.9 22 8,48.4 4,54.5 4,34.3 33 7,47.4 4,04.0 3,53.5 44th 6,66.6 3,93.9 2,82.8 55 6,16.1 3,63.6 2,62.6 66th 5,95.9 3,43.4 2,52.5 77th 5,95.9 3,23.2 2,42.4 88th 2,32.3 99 2,32.3 1010

2020th

Claims (10)

PATENTANSPRÜCHE:PATENT CLAIMS: 1. Schmieröl auf der Basis eines mineralischen oder synthetischen Schmieröles mit einem Gehalt an Teilestern mehrwertiger Alkohole und Metallsalzen organischer Säuren, gekennzeichnet durch einen geringen Gehalt an einem als Schmiermittelbestandteil an sich bekannten Teilester eines vier- bis sechswertigen Alkoholes und einem als Schmiermittelbestandteil an sich bekannten öllöslichen Metallsalz einer aromatischen Carbonsäure.1. Lubricating oil based on a mineral or synthetic lubricating oil with a content of Partial esters of polyvalent alcohols and metal salts of organic acids, characterized by a low content of a partial ester of a tetravalent to hexavalent one known per se as a lubricant component Alcohol and an oil-soluble metal salt known per se as a lubricant component an aromatic carboxylic acid. 2. Schmieröl nach Anspruch 1, dadurch gekennzeichnet, daß es 80 bis 97,5 Gewichtsprozent und insbesondere von 85 bis 95 Gewichtsprozent eines mineralischen oder synthetischen Schmieröls enthält.2. Lubricating oil according to claim 1, characterized in that it is 80 to 97.5 percent by weight and in particular from 85 to 95 percent by weight of a mineral or synthetic lubricating oil. 3. Schmieröl nach Anspruch 1 und 2, dadurch gekennzeichnet, daß das öllösliche Salz von einer alkylierten Salicylsäure oder einem Gemisch alkalierter Salicylsäuren abgeleitet ist, wobei die Alkylgruppen 8 bis 18 Kohlenstoffatome enthalten.3. Lubricating oil according to claim 1 and 2, characterized in that the oil-soluble salt of one alkylated salicylic acid or a mixture of alkaline salicylic acids, the alkyl groups Contain 8 to 18 carbon atoms. 4. Schmieröl nach Anspruch 1 bis 3, dadurch gekennzeichnet, daß das öllösliche Salz von einem mehrwertigen Metall, insbesondere Ca, Ba, Zn oder Mg, abgeleitet ist, wobei es sich auch um ein basisches Salz handeln kann.4. Lubricating oil according to claim 1 to 3, characterized in that the oil-soluble salt of a polyvalent one Metal, in particular Ca, Ba, Zn or Mg, is derived, which is also a basic one Salt can act. 5. Schmieröl nach Anspruch 1 bis 4, dadurch gekennzeichnet, daß es das öllösliche Salz in einer Menge von 0,1 bis 2 Gewichtsprozent, berechnet auf das Gesamtgemisch, enthält.5. Lubricating oil according to claim 1 to 4, characterized in that it is the oil-soluble salt in one Amount of 0.1 to 2 percent by weight, calculated on the total mixture, contains. 6. Schmieröl nach Anspruch 1 bis 5, dadurch gekennzeichnet, daß sich der Teilester von Sorbit, Sorbitan, Mannit, Mannitan oder Pentaerythrit und vorzugsweise von einer Carbonsäure mit 6 bis 30 Kohlenstoffatomen im Molekül ableitet, wie Sorbitoder Sorbitanmonoölsäureester.6. Lubricating oil according to claim 1 to 5, characterized in that the partial ester of sorbitol, Sorbitan, mannitol, mannitane or pentaerythritol and preferably from a carboxylic acid of 6 to 30 Carbon atoms in the molecule, such as sorbitol or sorbitan monooleic acid ester. 7. Schmieröl nach Anspruch 1 bis 6, dadurch gekennzeichnet, daß es den Teilester in einer Menge von 0,5 bis 10 Gewichtsprozent, vorzugsweise von 2 bis 70I0, berechnet auf das Gesamtgemisch, enthält.7. Lubricating oil according to claim 1 to 6, characterized in that it contains the partial ester in an amount of 0.5 to 10 percent by weight, preferably from 2 to 7 0 I 0 , calculated on the total mixture. 8. Schmieröl nach Anspruch 1 bis 7, gekennzeichnet durch einen weiteren Gehalt an einem als Schmiermittelbestandteil an sich bekannten öllöslichen Metallsalz, vorzugsweise einem Alkalisalz, einer organischen Sulfonsäure, wie Erdölsulfonsäure.8. Lubricating oil according to claim 1 to 7, characterized by a further content of one as a lubricant component oil-soluble metal salt known per se, preferably an alkali salt, an organic one Sulfonic acid, such as petroleum sulfonic acid. 9. Schmieröl nach Anspruch 8, dadurch gekennzeichnet, daß es das öllösliche Metallsalz einer organischen Sulfonsäure in einer Menge von 1,25 bis 7,5 Gewichtsprozent, berechnet auf das Gesamtgemisch, enthält.9. Lubricating oil according to claim 8, characterized in that it is the oil-soluble metal salt of an organic Sulphonic acid in an amount of 1.25 to 7.5 percent by weight, calculated on the total mixture, contains. 10. Schmieröl nach Anspruch 1 bis 9, gekennzeichnet durch einen weiteren Gehalt an einem üblichen Antioxydationsmittel oder ein Antikorrosionsmittel.10. Lubricating oil according to claim 1 to 9, characterized by a further content of a conventional one Antioxidant or an anti-corrosive agent. In Betracht gezogene Druckschriften: USA.-Patentschrift Nr. 2 587 545; britische Patentschrift Nr. 709 903; französische Patentschriften Nr. 953 562, 974 374.References considered: U.S. Patent No. 2,587,545; British Patent No. 709,903; French patents nos. 953 562, 974 374. © 609 867/386 3.57© 609 867/386 3.57
DES47221A 1955-01-27 1956-01-25 Lubricating oil Pending DE1005670B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1094391B (en) * 1957-12-31 1960-12-08 Exxon Research Engineering Co Lubricant mixture

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10138687A1 (en) * 2001-08-07 2003-02-27 Suedzucker Ag Carbohydrate esters for lubricant applications
FR2879611B1 (en) * 2004-12-22 2007-06-22 Roquette Freres PREPARATION AND PROCESSING OF COMPOSITIONS BASED ON BITUMEN, HYDROCARBON AND / OR RESIN

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FR953562A (en) * 1944-11-10 1949-12-08 Bataafsche Petroleum Anti-rust lubricants
FR974374A (en) * 1947-10-28 1951-02-21 Bataafsche Petroleum Lubricants
US2587545A (en) * 1949-04-14 1952-02-26 Standard Oil Dev Co Rust-preventing lubricant
GB709903A (en) * 1950-04-06 1954-06-02 Standard Oil Dev Co Lubricating oil composition

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR953562A (en) * 1944-11-10 1949-12-08 Bataafsche Petroleum Anti-rust lubricants
FR974374A (en) * 1947-10-28 1951-02-21 Bataafsche Petroleum Lubricants
US2587545A (en) * 1949-04-14 1952-02-26 Standard Oil Dev Co Rust-preventing lubricant
GB709903A (en) * 1950-04-06 1954-06-02 Standard Oil Dev Co Lubricating oil composition

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1094391B (en) * 1957-12-31 1960-12-08 Exxon Research Engineering Co Lubricant mixture

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