GB824249A - Improvements relating to synthetic lubricants - Google Patents

Improvements relating to synthetic lubricants

Info

Publication number
GB824249A
GB824249A GB6464/55A GB646455A GB824249A GB 824249 A GB824249 A GB 824249A GB 6464/55 A GB6464/55 A GB 6464/55A GB 646455 A GB646455 A GB 646455A GB 824249 A GB824249 A GB 824249A
Authority
GB
United Kingdom
Prior art keywords
dicarboxylic acid
aliphatic
molecular proportion
glycol
residue
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.)
Expired
Application number
GB6464/55A
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.)
BP PLC
Original Assignee
BP PLC
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 BP PLC filed Critical BP PLC
Publication of GB824249A publication Critical patent/GB824249A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M3/00—Liquid 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
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/28—Esters
    • C10M2207/282—Esters of (cyclo)aliphatic oolycarboxylic acids
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/28—Esters
    • C10M2207/30—Complex 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
    • C10M2207/304—Complex 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 derived from the combination of monohydroxy compounds, dihydroxy compounds and dicarboxylic acids only and having no free hydroxy or carboxyl groups
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/28—Esters
    • C10M2207/34—Esters having a hydrocarbon substituent of thirty or more carbon atoms, e.g. substituted succinic acid derivatives
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
    • C10M2209/02—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2209/08—Macromolecular 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
    • C10M2209/084—Acrylate; Methacrylate
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
    • C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2209/11—Complex polyesters
    • C10M2209/112—Complex polyesters having dihydric acid centres
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
    • C10N2030/08—Resistance to extreme temperature
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/12—Gas-turbines
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/12—Gas-turbines
    • C10N2040/13—Aircraft turbines

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Lubricants (AREA)

Abstract

A lubricating composition, suitable for use in aero gas turbines, comprises (1) a liquid aliphatic diester of a saturated aliphatic dicarboxylic acid, and (2) a polyester of formula ROOCR1COO(R2OOCR1COO)nR wherein R is the residue of an aliphatic monohydric alcohol ROH, R1 is the residue of an aliphatic or aromatic dicarboxylic acid HOOC R1COOH, R2 is the residue of a glycol or polyglycol HOR2OH and n is an integer greater than one. Ingredient (1) may be dioctyl or dinonyl sebacate, or a mixture of these, or octyl nonyl sebacate. Ingredient (2) is a polyester prepared by reacting in one or more stages, and in the absence of an esterification catalyst, (a) an aliphatic dicarboxylic acid or the anhydride thereof and/or an aromatic dicarboxylic acid or the anhydride thereof, (b) a glycol or polyglycol and (c) an aliphatic monohydric alcohol, the molecular proportion of (c) being less than the molecular proportion of (a), and the molecular proportion of (b) being greater than half the molecular proportion of (a). In preparing ingredient (2), 2-ethyl hexyl alcohol may be employed as the monohydric alcohol, phthalic acid (which may be used in the form of phthalic anhydride) and/or sebacic acid may be employed as the dicarboxylic acid, and propylene glycol may be employed as the glycol. The composition may also contain a polymerized ester of acrylic or methacrylic acid and an antioxidant. Examples of suitable lubricating compositions are given.ALSO:A polyester which is employed as an ingredient of a lubricating composition (see Group III) has the formula ROOCR1COO(R2OOCR1COO)nR, wherein R is the residue of an aliphatic monohydric alcohol ROH, R1 is the residue of an aliphatic or aromatic dicarboxylic acid HOOCR1COOH, R2 is the residue of a glycol or polyglycol HOR2OH and n is an integer greater than one. The polyester is prepared by reacting in one or more stages, and in the absence of an esterification catalyst, (a) an aliphatic dicarboxylic acid or the anhydride thereof and/or an aromatic dicarboxylic acid or the anhydride thereof, (b) a glycol or polyglycol, and (c) an aliphatic monohydric alcohol, the molecular proportion of (c) being less than the molecular proportion of (a), and the molecular proportion of (b) being greater than half the molecular proportion of (a). In examples: (1) sebacic acid (2.4 mols.), phthalic anhydride (0.6 mol.), 2-ethylhexyl alcohol (0.9 mol.), and propylene glycol (2.85 mols.), are reacted together; and (2) the same materials in the molar proportions 2.4:0.6:2.1:2.25 are reacted together.ALSO:A lubricating composition, suitable for use in aero gas turbines, comprises (1) a liquid aliphatic diester of a saturated aliphatic dicarboxylic acid, and (2) a polyester of formula ROOCR1COO(R2OOCR1COO)nR wherein R is the residue of an aliphatic monohydric alcohol ROH, R1 is the residue of an aliphatic or aromatic dicarboxylic acid HOOCR1 COOH, R2 is the residue of a glycol or polyglycol HOR2OH and n is an integer greater than one. Ingredient (1) may be dioctyl or dinonyl sebacate, or a mixture of these, or octyl nonyl sebacate. Ingredient (2) is a polyester prepared by reacting in one or more stages, and in the absence of an esterification catalyst, (a) an aliphatic dicarboxylic acid or the anhydride thereof and/or an aromatic dicarboxylic acid or the anhydride thereof, (b) a glycol or polyglycol, and (c) an aliphatic monohydric alcohol, the molecular proportion of (c) being less than the molecular proportion of (a), and the molecular proportion of (b) being greater than half the molecular proportion of (a). In preparing ingredient (2), 2-ethyl hexyl alcohol may be employed as the monohydric alcohol, phthalic acid (which may be used in the form of phthalic anhydride) and/or sebacic acid may be employed as the dicarboxylic acid, and propylene glycol may be employed as the glycol. The composition may also contain a polymerized ester of acrylic or methacrylic acid and an antioxidant. Examples of suitable lubricating compositions are given.
GB6464/55A 1955-03-04 1955-03-04 Improvements relating to synthetic lubricants Expired GB824249A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB346637X 1955-03-04

Publications (1)

Publication Number Publication Date
GB824249A true GB824249A (en) 1959-11-25

Family

ID=10368435

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6464/55A Expired GB824249A (en) 1955-03-04 1955-03-04 Improvements relating to synthetic lubricants

Country Status (5)

Country Link
BE (1) BE545736A (en)
CH (1) CH346637A (en)
FR (1) FR1149208A (en)
GB (1) GB824249A (en)
NL (1) NL102084C (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3247115A (en) * 1961-10-16 1966-04-19 Texaco Inc Complex ester lubricant and composition
US3413223A (en) * 1965-07-22 1968-11-26 British Petroleum Co Ester lubricants
US10336958B2 (en) 2016-08-30 2019-07-02 Resinate Materials Group, Inc. Sustainable base oils for lubricants

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL234783A (en) * 1958-01-02

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3247115A (en) * 1961-10-16 1966-04-19 Texaco Inc Complex ester lubricant and composition
US3413223A (en) * 1965-07-22 1968-11-26 British Petroleum Co Ester lubricants
US10336958B2 (en) 2016-08-30 2019-07-02 Resinate Materials Group, Inc. Sustainable base oils for lubricants

Also Published As

Publication number Publication date
NL102084C (en)
FR1149208A (en) 1957-12-23
CH346637A (en) 1960-05-31
BE545736A (en)

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