US3206405A - Synthetic lubricants comprising dehydrocondensation products of polyesters - Google Patents

Synthetic lubricants comprising dehydrocondensation products of polyesters Download PDF

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Publication number
US3206405A
US3206405A US163908A US16390862A US3206405A US 3206405 A US3206405 A US 3206405A US 163908 A US163908 A US 163908A US 16390862 A US16390862 A US 16390862A US 3206405 A US3206405 A US 3206405A
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product
dehydrocondensation
reaction
polyester
weight
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Herbert L Hepplewhite
Edward A Oberright
Robert H Williams
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ExxonMobil Oil Corp
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Socony Mobil Oil Co Inc
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Priority to US163907A priority Critical patent/US3205173A/en
Priority to US163908A priority patent/US3206405A/en
Priority to FR920173A priority patent/FR1347983A/fr
Priority to BE626721D priority patent/BE626721A/xx
Priority to GB84/63A priority patent/GB1035101A/en
Priority to DES83128A priority patent/DE1278436B/de
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    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M3/00Liquid compositions essentially based on lubricating components other than mineral lubricating oils or fatty oils and their use as lubricants; Use as lubricants of single liquid substances
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/28Esters
    • C10M2207/281Esters of (cyclo)aliphatic monocarboxylic acids
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/28Esters
    • C10M2207/282Esters of (cyclo)aliphatic oolycarboxylic acids
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/28Esters
    • C10M2207/283Esters of polyhydroxy compounds
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/28Esters
    • C10M2207/286Esters of polymerised unsaturated acids
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/28Esters
    • C10M2207/287Partial esters
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/28Esters
    • C10M2207/287Partial esters
    • C10M2207/289Partial esters containing free hydroxy groups
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/28Esters
    • C10M2207/30Complex esters, i.e. compounds containing at leasst three esterified carboxyl groups and derived from the combination of at least three different types of the following five types of compounds: monohydroxyl compounds, polyhydroxy xompounds, monocarboxylic acids, polycarboxylic acids or hydroxy carboxylic acids
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/28Esters
    • C10M2207/34Esters having a hydrocarbon substituent of thirty or more carbon atoms, e.g. substituted succinic acid derivatives
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2209/00Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2209/00Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
    • C10M2209/02Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2209/00Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
    • C10M2209/02Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2209/08Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to a carboxyl radical, e.g. acrylate type
    • C10M2209/082Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to a carboxyl radical, e.g. acrylate type monocarboxylic
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2209/00Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
    • C10M2209/10Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2209/00Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
    • C10M2209/10Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2209/102Polyesters
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2211/00Organic non-macromolecular compounds containing halogen as ingredients in lubricant compositions
    • C10M2211/04Organic non-macromolecular compounds containing halogen as ingredients in lubricant compositions containing carbon, hydrogen, halogen, and oxygen
    • C10M2211/044Acids; Salts or esters thereof
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2211/00Organic non-macromolecular compounds containing halogen as ingredients in lubricant compositions
    • C10M2211/06Perfluorinated compounds
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10NINDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2030/00Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
    • C10N2030/08Resistance to extreme temperature
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10NINDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00Specified use or application for which the lubricating composition is intended
    • C10N2040/12Gas-turbines
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10NINDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00Specified use or application for which the lubricating composition is intended
    • C10N2040/12Gas-turbines
    • C10N2040/13Aircraft turbines
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10NINDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2050/00Form in which the lubricant is applied to the material being lubricated
    • C10N2050/10Form in which the lubricant is applied to the material being lubricated semi-solid; greasy

Definitions

  • the products of the invention exhibit good shear-resistance as opposed to conventional polymeric oil addends. It is, therefore, the primary object of this invention to provide a novel class of lubricating oils comprising dehydrocondensation products of polyesters.
  • It is also an object to provide novel lubricating oil compositions comprising blends of conventional ester oils and dehydrocondensed polyesters.
  • polyesters which may be dehydrocondensed in accordance with the invention may be any polyester having an abstractable hydrogen atom.
  • di-, triand tetraesters of di-, triand tetra-carboxylic acids and di-tri-, tetraand polyesters of glycols, triols and polyhydric alcohols may be employed.
  • suitable esters are the following:
  • Organic peroxides utilizable in the invention may be any organic peroxide or hydroperoxide which breaks down on heating to give free radicals.
  • tertiary alkyl peroxides containing from 8 to about 20 carbon atoms such as di-t-butyl peroxide, di-t-amyl peroxide, tamyl, t-butyl peroxide and di-t-octyl peroxide, are particularly suitable.
  • the dehydrocondensation reaction is carried out by intermixing from about 5 to about 50 weight percent of the peroxide with the ester and heating the mixture for a period of from about 1 to about 10 hours at a temperature of from about 100 C. to about 200 C. Free alcohol formed in the reaction is then removed by distillation.
  • the reaction can be carried out in one step utilizing relatively large amounts of peroxide, i.e., 15-20% or more, or it can be conducted in stages using relatively small amounts, such as about 5%, and repeating the reaction with this amount several times until a product having the desired viscosity is obtained.
  • Thelatter procedure is useful in determining the amount of peroxide which will provide a product having a certain viscosity from a particular polyester, while the former procedure is generally the one used after such a determination has been made.
  • EXAMPLE 1 Dehydrocondensation of di-Z-ethylhexyl sebacate A mixture of 500 grams of di-Z-ethylhexyl sebacate and 25 grams of di-t-butyl peroxide were reacted under reflux at 135-145" C. for 5 hours. Tertiary butyl alcohol, formed during the reaction, was removed by distillation. A IOU-gram sample was then removed from the reaction mixture. The reaction mixture was then subjected to reaction with four additional portions of peroxide under the same conditions as in the original reaction, the portion of peroxide added in each instance amounting to ap proximately 5% of the remaining reaction mixture. Table I shows the physical properties of the products obtained in each of these reactions, numbered 1-5 in the table.
  • the dehydrocondensed ester is highly advantageous as a blending stock for the estertype oils, since it substantially increases both the viscosity and viscosity index of the base ester oil. It is seen further than the 10% treated-ester blend does not significantly detract from the shear stability of the (di-2- ethylhexyl sebacate) oil.
  • ester oils are derived from either (a) monohydric aliphatic alcohols, such as butyl, iso-butyl, octyl, decyl, dodecyl and tetradecyl alcohol, and aliphatic dicarboxylic acids, such as adipic, pimelic, suheric, azelaic and sebacic acid, or (b) polyhydric alcohols, such as ethylene glycol, trimethylol propane, trimethylol butane, pentaaerythritol, etc., and monocarboxylic acids, such as acetic, valeric, decanoic, myristic, stearic, etc.
  • monohydric aliphatic alcohols such as butyl, iso-butyl, octyl, decyl, dodecyl and tetradecyl alcohol
  • aliphatic dicarboxylic acids such as adipic, pimelic, suheric
  • Table VII shows the results obtained by the percolation treatment of a dehydrocondensed trimethylol propane tripelargonate ester. It will be seen that the product which was not subjected to percolation had an N.N. of 0.28, but that the N.N. of the percolated product with or without thermal treatment (columns 2 and 3) was lowered to substantially that of the original ester.
  • reaction of the starting ester with over about 10%, by weight, of peroxide provides a product of somewhat lower thermal stability than that of the starting ester.
  • this may be overcome by subjecting the product to a simple thermal treatment. This involves simply heating the product to a temperature of, say, 400600 F. in a nitrogen atmosphere.
  • Table VIII shows the effect of the thermal treatment on the thermal stability of a dehydrocondensed trimethylol alkane tripelargonate. It will be seen from the table that percolation alone has only a minor effect on the thermal stability of the product, while heat-treating results in a large improvement in thermal stability. Percolation used after heat-treating removes acidic decomposition products and improves the color of the product.
  • Test Method Sample heated to 536 F. in nitrogen atmosphere for 24 l i e ated at 536 F. for 24 hours under nitrogen and percolated over clay and alumina.
  • the invention (1) provides polyester dehydrocondensation products having viscosities and low temperature characteristics which make them desirable lubricating oils for high temperature application, such as jet engine lubricants and (2) that these products are highly advantageous blending agents for conventional ester lubricating oils. It will be understood that the amount of the dehydrocondensatlon product added to an ester base oil can vary over a wide range, depending upon the viscosity of the particular product used and the viscosity desired in the finished blend. Thus, the products, being lubricating oils of themselves, may comprise either a major or a minor proportion of the finished oil blends.
  • the amount of dehydrocondensation product employed will generally be no greater than about 40 weight percent and may be as little as 1 weight percent, based on the total composition.
  • the lubricating oil compositions of the invention may contain additives normally added to lubricating oil for the purpose of improving the various characteristics thereof, such as antioxidants, detergents, extreme pressure agents, anti-wear agents, metal deactivators, etc.
  • a lubricating oil comprising a dehydrocondensation product prepared by reacting (a) a polyester derived from a carboxylic acid, selected from the group consisting of monoand polycarboxylic acids, said acids containing from about 2 to about 20 carbon atoms exclusive of carboxyl carbons, and an alcohol, selected from the group consisti-ngof monoand polyhydroxy alcohols, said alcohol containing from about 2 to about 20 carbon atoms with (b) from about 5% to about 50%, by weight, based on the polyester, of a di-tertiary alkyl peroxide containing from about 8 to about 20 carbon atoms, at a temperature of from about 100 C. to about 200 C. to form a dehydrocondensation product of said polyester and removing free alcohol formed in the reaction from the dehydrocondensation product.
  • a lubricating oil comprising a dehydrocondensation product prepared by reacting di-Z-ethylhexyl sebacate with from about 5% to about 50%, by weight, based on the weight of the di-2-ethylhexy1 sebacate, of di-tertiarybutyl peroxide, at a temperature of from about 100 C. to about 200 C., to fornra dehydrocondensation product of di-Z-ethylhexyl sebacate and removing free -di-tertiary- 'butyl alcohol formed in the reaction from the dehydrocondensation product.
  • a lubricating oil comprising a dehydrocondensation product prepared by reacting trimethylol propane trioctanoa'te with from about 5% to about 50%, by weight, based on the weight of the trimethylol propane trioctanoate, of 'di-tertiary-butyl peroxide, at a temperature of from about 100 C. toabout 200 C., to form a dehydrocondensation product of trimethylol propane trioctanoate and removing free di-tertiary-butyl alcohol formed in the reaction from the dehydrocondensation product.
  • a lubricating oil comprising .a dehydrocondensation product prepared by reacting trimethylol propane tripelargonate with from about 5% to about 50%, by weight, based on the wei ht of the trimethylol propane 'tripelargonate, of di-tertiary-butyl peroxide, at a temperature of from about 100 C. to about 200 C., to form a de hydrocondensation product of trimethylol propane tripelargonate and removing free di-tertiary-butyl alcohol formed in the reaction from the dehydrocondensation product.
  • a lubricating oil comprising a dehydrocondensation product prepared by reacting a mixed C C carboxylic acid ester of pentaerythritol with from about 5% to about 50%, by weight, based on the weight of said ester, of di-tertiary-butyl peroxide, at temperature of from about 100 C. to about 200 C., to form a dehydrocondensation product of the mixed C C carboxylic acid ester of pentaerythritol and removing free-di-tertiary-butyl alcohol formed in the reaction from the dehydrocondensation product.
  • a lubricating oil composition comprising a blend of a conventional ester oil and a dehydrocondensation product prepared by reacting (a) a polyester derived from a carboxylic acid, selected from the group consisting of monoand polycarboxylic acids, said acids containing from about 2 to about 20 carbon atoms exclusive of carbox l carbons, and an alcohol, selected from the group consisting of monoand polyhydroxy alcohols, said alcohol containing from about 2 to about 20 carbon atoms with (b) from about 5% to about 50%, by weight, based on the polyester of .a di-tertiary .alkyl peroxide containing from about 8 to about 20 carbon atoms, at a temperature of from about C. to about 200 C. to form a dehydrocondensation product of said polyester and removing free alcohol formed in the reaction from the dehydrocondensation product.
  • a lubricating oil composition comprising a blend of a conventional ester oil and a dehydrocondensation product preparted by reacting trimethylol propane trioctanoate with from about 5% to about 50%, by weight, based on the weight of the trimethylol propane trioctanoate, of ditertiary-butyl peroxide, at a temperature of from about 100 C. to about 200 C., to form a dehydrocondensation product of trimethylol propane trioctanoate and removing free di-tertiary-butyl alcohol formed in the reaction from the dehydrocondensation product.
  • a lubricating oil composition comprising a blend of a conventional ester oil and a dehydrocondensation product prepared by reacting trimethylol propane tripelargonate with from about 5% to about 50%, by Weight, based on the weight of the trimethylol propane tripelargonate, of di-tertiary-butyl peroxide, at a temperature of from about 100 C. to about 200 C., to form a dehydrocondensation product of trimethylol propane tripelargonate and removing free di-tertiary-butyl alcohol formed in the reaction from the dehydrocondensation product.
  • a lubricating oil composition comprising a blend of a conventional ester oil and a dehydrocondensation product prepared by reacting a mixed C -C carboxylic acid ester of pentaerythritol with from about 5% to about 50%, by weight, based on the weight of said ester, of di-tertiary-butyl peroxide, at a temperature of from about 100 C. to about 200 C., to form a dehydrocondensation product of the mixed C C carboxylic acid ester of pentaerythritol and removing free di-tertiary-butyl alcohol for-med in the reaction from the dehydrocondensation product.
  • a lubricating oil as defined in claim 1 which has been improved as to its thermal stability by heating to a temperature of from about 400 F. to about 600 F. in a nitrogen atmosphere.
  • a lubricating .oil comprising a dehydrocondensation product prepared by reacting a polyester having an abstractable hydrogen atom with from about 5% to about 50%, by weight, based on the polyester, of a di-tertiary :alkyl peroxide containing from about 8 to about 20 carbon atoms, at a temperature of from about 100 C. to about 200 C. to form a dehydrocondensation product of said polyester and removing free alcohol formed in the reaction from the dehydrocondensation product.
  • a lubricating oil composition comprising a blend of a conventional ester oil and a dehydrocondensation product prepared by reacting a polyester having an abstractable hydrogen atom with from about 5% to about 50%, by Weight, based on the polyester of a di-tertiary 9 10 :alkyl peroxide containing from about 8 to about 20 2,808,418 10/57 Harrison 260404.8 carbon atoms, at a temperature of from about 100 C. 2,820,014 1/58 Hartley et a1. 25256 to about 200 C. to form a dehydrooondensation pnod-uct 2,839,571 6/ 58 Johnston et a1.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Lubricants (AREA)
  • Polyesters Or Polycarbonates (AREA)
US163908A 1962-01-02 1962-01-02 Synthetic lubricants comprising dehydrocondensation products of polyesters Expired - Lifetime US3206405A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
US163907A US3205173A (en) 1962-01-02 1962-01-02 Synthetic lubricating oils comprising dehydrocondensation products of mono-esters
US163908A US3206405A (en) 1962-01-02 1962-01-02 Synthetic lubricants comprising dehydrocondensation products of polyesters
FR920173A FR1347983A (fr) 1962-01-02 1962-12-29 Huiles lubrifiantes synthétiques
BE626721D BE626721A (enrdf_load_stackoverflow) 1962-01-02 1962-12-31
GB84/63A GB1035101A (en) 1962-01-02 1963-01-01 Synthetic lubricants comprising dehydrocondensation products of esters
DES83128A DE1278436B (de) 1962-01-02 1963-12-31 Verfahren zur Herstellung von als Schmiermittel

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US163907A US3205173A (en) 1962-01-02 1962-01-02 Synthetic lubricating oils comprising dehydrocondensation products of mono-esters
US163908A US3206405A (en) 1962-01-02 1962-01-02 Synthetic lubricants comprising dehydrocondensation products of polyesters

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US163907A Expired - Lifetime US3205173A (en) 1962-01-02 1962-01-02 Synthetic lubricating oils comprising dehydrocondensation products of mono-esters

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BE (1) BE626721A (enrdf_load_stackoverflow)
DE (1) DE1278436B (enrdf_load_stackoverflow)
FR (1) FR1347983A (enrdf_load_stackoverflow)
GB (1) GB1035101A (enrdf_load_stackoverflow)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3640858A (en) * 1968-11-14 1972-02-08 Texaco Inc Dual purpose lubricating compositions
US5489711A (en) * 1994-12-20 1996-02-06 The B. F. Goodrich Company Synthetic lubricant antioxidant from monosubstituted diphenylamines
US6426324B1 (en) 1993-12-15 2002-07-30 Noveon Ip Holdings Corp. Lubricant composition

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3280379A (en) * 1963-05-10 1966-10-18 Westinghouse Electric Corp Panelboard comprising an insulating support and a circuit breaker
US11760766B2 (en) 2020-07-28 2023-09-19 Ut-Battelle, Llc Ionic liquids containing quaternary ammonium and phosphonium cations, and their use as environmentally friendly lubricant additives

Citations (8)

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US2429219A (en) * 1944-03-07 1947-10-21 John C Cowan Process of making linear superpolyesters
US2801263A (en) * 1953-06-18 1957-07-30 Eastman Kodak Co Process for production of alpha, omega-dicarboxylic acids and esters
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US2820014A (en) * 1954-05-14 1958-01-14 Shell Dev Ester lubricants
US2839571A (en) * 1955-08-12 1958-06-17 Nat Distillers Chem Corp Ester products
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US6426324B1 (en) 1993-12-15 2002-07-30 Noveon Ip Holdings Corp. Lubricant composition
US5489711A (en) * 1994-12-20 1996-02-06 The B. F. Goodrich Company Synthetic lubricant antioxidant from monosubstituted diphenylamines

Also Published As

Publication number Publication date
DE1278436B (de) 1968-09-26
BE626721A (enrdf_load_stackoverflow) 1963-07-01
FR1347983A (fr) 1964-01-04
GB1035101A (en) 1966-07-06
US3205173A (en) 1965-09-07

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