GB844779A - Improvements relating to synthetic lubricants - Google Patents
Improvements relating to synthetic lubricantsInfo
- Publication number
- GB844779A GB844779A GB16629/57A GB1662957A GB844779A GB 844779 A GB844779 A GB 844779A GB 16629/57 A GB16629/57 A GB 16629/57A GB 1662957 A GB1662957 A GB 1662957A GB 844779 A GB844779 A GB 844779A
- Authority
- GB
- United Kingdom
- Prior art keywords
- polyester
- sebacate
- diester
- carbon atoms
- prepared
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B27/00—Tools for turning or boring machines; Tools of a similar kind in general; Accessories therefor
- B23B27/14—Cutting tools of which the bits or tips or cutting inserts are of special material
- B23B27/18—Cutting tools of which the bits or tips or cutting inserts are of special material with cutting bits or tips or cutting inserts rigidly mounted, e.g. by brazing
-
- 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
- C10M105/00—Lubricating compositions characterised by the base-material being a non-macromolecular organic compound
- C10M105/08—Lubricating compositions characterised by the base-material being a non-macromolecular organic compound containing oxygen
- C10M105/32—Esters
-
- 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
- C10M105/00—Lubricating compositions characterised by the base-material being a non-macromolecular organic compound
- C10M105/08—Lubricating compositions characterised by the base-material being a non-macromolecular organic compound containing oxygen
- C10M105/32—Esters
- C10M105/36—Esters of polycarboxylic 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
- C10M2207/282—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
- C10M2207/34—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
- C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2209/102—Polyesters
-
- 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
- C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
- C10M2219/10—Heterocyclic compounds containing sulfur, selenium or tellurium compounds in the ring
- C10M2219/104—Heterocyclic compounds containing sulfur, selenium or tellurium compounds in the ring containing sulfur and carbon with nitrogen or oxygen in the ring
- C10M2219/108—Phenothiazine
-
- 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)
- Health & Medical Sciences (AREA)
- Emergency Medicine (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lubricants (AREA)
Abstract
A lubricating composition comprises a blend of a liquid aliphatic diester of a saturated aliphatic dicarboxylic acid, or a mixture of such diesters, and a polyester, soluble in the diester, and having the general formula HO(R2OOCR1COO)nCH2OH where n is an integer, the R1s are hydrocarbon residues of dicarboxylic acids HOOCR1COOH, and the R2s are residues of diols HOR2OH, or a mixture of such polyesters, the polyester or polyester mixture having been prepared by reacting in one or more stages (a) an acid or acids of the formula HOOCR1COOH, or the anhydrides of such acids (where they exist), where R1 is an alkylene group having 4-14 carbon atoms, (b) a diol or diols of the formula HOCH2C(R6)(R7)CH2OH where R6 is a methyl or ethyl group and R7 is an alkyl group having 1-4 carbon atoms, and (c) 1,3-butanediol, the total molecular proportion of (b) and (c) being greater than the molecular proportion of (a), and the relative proportions of diester and polyester in the blend being such that the viscosity of the blend at 210 DEG F. is 4-30 centistokes. The diester preferably has the formula R4OOCR5COOR4 where p R5 is an alkylene group having 4-14 carbon atoms and the R4s are alkyl groups, especially branched-chain, having 4-18 carbon atoms. Examples of suitable diesters are (i) di (2-ethylhexyl) sebacate, (ii) di (3, 5, 5-trimethylhexyl) sebacate, (iii) 2-ethylhexyl (3, 5, 5, trimethyl hexyl) sebacate and mixtures of (i), (ii) and (iii). The lubricating composition may contain an antioxidant such as phenothiazine. In an example, a lubricating composition is described consisting of diester (a blend of octylnonyl sebacate, dioctyl sebacate and dinonyl sebacate, prepared by reacting together sebacic acid, 2-ethylexanol and 3, 5, 5-trimethylhexanol), polyester (prepared by reacting together sebacic acid, 2, 2-dimethyl-1, 3-propanediol and 1, 3-butanediol) and phenothiazine. For comparison purposes, a similar lubricating composition is described wherein the polyester is poly (propylene glycol sebacate). Specification 763,077 is referred to.ALSO:A polyester, which is employed as an ingredient of a lubricating composition (see Group III) has the general formula HO(R2OOCR1COO)nCR2OH where n is an integer, the R1s are hydrocarbon residues of dicarboxylic acids HOOCR1COOH, and the R2s are residues of diols HOR2OH. The polyester, or a mixture of such polyesters is prepared by reacting in one or more stages (a) an acid or acids of the formula HOOCR1COOH, or the anhydrides of such acids (where they exist), where R1 is an alkylene group having 4-14 carbon atoms, (b) a diol or diols of the formula HOCH2C(R6)(R7)CH2OH where R6 is a methyl or ethyl group and R7 is an alkyl group having 1-4 carbon atoms, and (c) 1,3-butanediol, the total molecular proportion of (b) and (c) being greater than the molecular proportion of (a). In an example, the polyester is prepared by reacting together sebacic acid, 2,2-dimethyl-1,3-propanediol and 1,3-butanediol. A diester is prepared by reacting equimolar amounts of sebacic acid, 2-ethyl-hexanol and 3:5:5-trimethyl hexanol. Specification 763,077 is referred to.ALSO:A lubricating composition, suitable for the lubrication of aero gas turbines, comprises a blend of a liquid aliphatic diester of a saturated aliphatic dicarboxylic acid, of a mixture of such diesters, and a polyester, soluble in the diester, and having the general formula HO(R2OOCR1COO)nCH2OH where n is an integer, the R1s are hydrocarbon residues of dicarboxylic acids HOOCR1COOH, and the R2s are residues of diols HOR2OH, or a mixture of such polyesters, the polyester or polyester mixture having been prepared by reacting in one or more stages (a) an acid or acids of the formula HOOCR1COOH, of the anhydrides of such acids (where they exist), where R1 is an alkylene group having 4-14 carbon atoms, (b) a diol or diols of the formula HOCH2C(R6)(R7)CH2OH where R6 is a methyl or ethyl group and R7 is an alkyl group having 1-4 carbon atoms, and (c) 1,3-butanediol, the total molecular proportion of (b) and (c) being greater than the molecular proportion of (a), and the relative proportions of diester and polyester in the blend being such that the viscosity of the blend at 210 DEG F. is 4-30 centistokes. The diester preferably has the formula R4OOCR5COOR4 where R5 is an alkylene group having 4-14 carbon atoms and the R4s are alkyl groups, especially branched-chain, having 4-18 carbon atoms. Examples of suitable diesters are (i) di (2-ethylhexyl) sebacate, (ii) di (3,5,5-trimethylhexyl) sebacate, (iii) 2-ethylhexyl (3,5,5-trimethylhexyl) sebacate and mixtures of (i), (ii) and (iii). The lubricating composition may contain an antioxidant such as phenothiazine. In an example, a lubricating composition is described consisting of diester (a blend of octyl nonyl sebacate, dioctyl sebacate and dinonyl sebacate, prepared by reacting together sebacic acid, 2-ethylhexanol and 3,5,5-trimethylhexanol), polyester (prepared by reacting together sebacic acid, 2,2-dimethyl-1,3-propanediol and 1,3-butanediol) and phenothiazine. For comparison purposes, a similar lubricating composition is described wherein the polyester is poly (propylene glycol sebacate). Specification 763,077 is referred to.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BE567994D BE567994A (en) | 1957-05-24 | ||
GB16629/57A GB844779A (en) | 1957-05-24 | 1957-05-24 | Improvements relating to synthetic lubricants |
CH5981558A CH377028A (en) | 1957-05-24 | 1958-05-22 | Synthetic mixture of lubricants |
FR1209159D FR1209159A (en) | 1957-05-24 | 1958-05-23 | Synthetic lubricant, especially for air and gas turbines |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB16629/57A GB844779A (en) | 1957-05-24 | 1957-05-24 | Improvements relating to synthetic lubricants |
Publications (1)
Publication Number | Publication Date |
---|---|
GB844779A true GB844779A (en) | 1960-08-17 |
Family
ID=10080777
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB16629/57A Expired GB844779A (en) | 1957-05-24 | 1957-05-24 | Improvements relating to synthetic lubricants |
Country Status (4)
Country | Link |
---|---|
BE (1) | BE567994A (en) |
CH (1) | CH377028A (en) |
FR (1) | FR1209159A (en) |
GB (1) | GB844779A (en) |
-
0
- BE BE567994D patent/BE567994A/xx unknown
-
1957
- 1957-05-24 GB GB16629/57A patent/GB844779A/en not_active Expired
-
1958
- 1958-05-22 CH CH5981558A patent/CH377028A/en unknown
- 1958-05-23 FR FR1209159D patent/FR1209159A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
CH377028A (en) | 1964-04-30 |
FR1209159A (en) | 1960-02-29 |
BE567994A (en) |
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