EP0048631B1 - Den Viskositätsindex verbessernde Additivzusammensetzung - Google Patents
Den Viskositätsindex verbessernde Additivzusammensetzung Download PDFInfo
- Publication number
- EP0048631B1 EP0048631B1 EP81304395A EP81304395A EP0048631B1 EP 0048631 B1 EP0048631 B1 EP 0048631B1 EP 81304395 A EP81304395 A EP 81304395A EP 81304395 A EP81304395 A EP 81304395A EP 0048631 B1 EP0048631 B1 EP 0048631B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- weight
- lubricating oil
- composition
- ester
- hydrogenated
- 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
- 239000000203 mixture Substances 0.000 title claims abstract description 54
- 239000000654 additive Substances 0.000 title claims abstract description 19
- 230000000996 additive effect Effects 0.000 title claims abstract description 15
- 239000010687 lubricating oil Substances 0.000 claims abstract description 23
- 150000002148 esters Chemical class 0.000 claims abstract description 20
- 239000010688 mineral lubricating oil Substances 0.000 claims abstract description 12
- 150000001993 dienes Chemical class 0.000 claims abstract description 11
- 229920001083 polybutene Polymers 0.000 claims abstract description 8
- 229920006395 saturated elastomer Polymers 0.000 claims abstract description 6
- 125000005907 alkyl ester group Chemical group 0.000 claims abstract description 5
- 150000007933 aliphatic carboxylic acids Chemical class 0.000 claims abstract description 4
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 claims description 32
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Natural products C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 27
- 239000003921 oil Substances 0.000 claims description 13
- 239000002904 solvent Substances 0.000 claims description 13
- 230000007935 neutral effect Effects 0.000 claims description 12
- VOPZYEZDPBASFO-UHFFFAOYSA-N dioctyl dodecanedioate Chemical compound CCCCCCCCOC(=O)CCCCCCCCCCC(=O)OCCCCCCCC VOPZYEZDPBASFO-UHFFFAOYSA-N 0.000 claims description 11
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 claims description 10
- 229920000642 polymer Polymers 0.000 claims description 9
- 150000003440 styrenes Chemical group 0.000 claims description 7
- 229920001400 block copolymer Polymers 0.000 claims description 4
- 239000002253 acid Substances 0.000 claims description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 2
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 claims description 2
- 150000007513 acids Chemical class 0.000 claims description 2
- 150000005690 diesters Chemical class 0.000 claims description 2
- 150000005846 sugar alcohols Polymers 0.000 claims description 2
- 125000003011 styrenyl group Chemical group [H]\C(*)=C(/[H])C1=C([H])C([H])=C([H])C([H])=C1[H] 0.000 claims 1
- 230000003247 decreasing effect Effects 0.000 abstract description 2
- 229920001038 ethylene copolymer Polymers 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
- 229920001577 copolymer Polymers 0.000 description 12
- 235000019198 oils Nutrition 0.000 description 12
- 239000002199 base oil Substances 0.000 description 5
- 230000001050 lubricating effect Effects 0.000 description 5
- 238000005984 hydrogenation reaction Methods 0.000 description 3
- 239000004215 Carbon black (E152) Substances 0.000 description 2
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000003085 diluting agent Substances 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002480 mineral oil Substances 0.000 description 2
- IGGDKDTUCAWDAN-UHFFFAOYSA-N 1-vinylnaphthalene Chemical compound C1=CC=C2C(C=C)=CC=CC2=C1 IGGDKDTUCAWDAN-UHFFFAOYSA-N 0.000 description 1
- 239000004129 EU approved improving agent Substances 0.000 description 1
- 239000005662 Paraffin oil Substances 0.000 description 1
- 229920002367 Polyisobutene Polymers 0.000 description 1
- XYLMUPLGERFSHI-UHFFFAOYSA-N alpha-Methylstyrene Chemical compound CC(=C)C1=CC=CC=C1 XYLMUPLGERFSHI-UHFFFAOYSA-N 0.000 description 1
- 239000010775 animal oil Substances 0.000 description 1
- 125000000129 anionic group Chemical group 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 230000003292 diminished effect Effects 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 239000010696 ester oil Substances 0.000 description 1
- HQQADJVZYDDRJT-UHFFFAOYSA-N ethene;prop-1-ene Chemical group C=C.CC=C HQQADJVZYDDRJT-UHFFFAOYSA-N 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 229920001519 homopolymer Polymers 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 229920013639 polyalphaolefin Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000000153 supplemental effect Effects 0.000 description 1
- 239000010689 synthetic lubricating oil Substances 0.000 description 1
- 229920001897 terpolymer Polymers 0.000 description 1
- 235000015112 vegetable and seed oil Nutrition 0.000 description 1
- 239000008158 vegetable oil Substances 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
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
- C10M167/00—Lubricating compositions characterised by the additive being a mixture of a macromolecular compound, a non-macromolecular compound and a compound of unknown or incompletely defined constitution, each of these compounds being essential
-
- 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
- C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
- C10M2203/10—Petroleum or coal fractions, e.g. tars, solvents, bitumen
-
- 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
- C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
- C10M2203/10—Petroleum or coal fractions, e.g. tars, solvents, bitumen
- C10M2203/102—Aliphatic fractions
-
- 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
- C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
- C10M2203/10—Petroleum or coal fractions, e.g. tars, solvents, bitumen
- C10M2203/104—Aromatic fractions
-
- 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
- C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
- C10M2203/10—Petroleum or coal fractions, e.g. tars, solvents, bitumen
- C10M2203/106—Naphthenic fractions
-
- 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
- C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
- C10M2203/10—Petroleum or coal fractions, e.g. tars, solvents, bitumen
- C10M2203/108—Residual fractions, e.g. bright stocks
-
- 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
- C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
-
- 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
- C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
- C10M2205/02—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers
- C10M2205/026—Butene
-
- 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
- C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
- C10M2205/06—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing conjugated dienes
-
- 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
- C10M2207/281—Esters of (cyclo)aliphatic monocarboxylic 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
- C10M2207/283—Esters of polyhydroxy compounds
-
- 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
- C10M2207/286—Esters of polymerised unsaturated 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
- C10M2207/287—Partial 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
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/28—Esters
- C10M2207/287—Partial esters
- C10M2207/288—Partial esters containing free 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
- C10M2207/287—Partial esters
- C10M2207/289—Partial esters containing free hydroxy 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
Definitions
- the present invention relates to a viscosity index improver additive composition and to a finished lubricating oil containing the additive composition.
- Lubricating oils are normally classified in terms of their viscosity at some standard temperature but equally important is a property known as the viscosity index, which is an empirical number giving a measure of the extent to which the viscosity of an oil decreases as the temperature is raised.
- An oil which satisfies viscosity requirements at both extremes of the temperature range to which it may be subjected is said to have a high "viscosity index”. This property can be controlled to some extent by refining, but in recent years the trend has been towards 'multi-grade' oils, of extremely high viscosity index, in which certain polymer compounds which function as viscosity index improvers are added.
- any potential lubricating oil additives In addition to the properties of improving viscosity index and of being stable under conditions of high shear, it is necessary for any potential lubricating oil additives to have two other important properties, namely compatibility with the lubricating oil and the stability under conditions of oxidation which might reasonably be expected to be encountered under conditions of storage and use of such compositions.
- 3994815 Cold-by-Eckert
- 3668125 Anderson
- 3763044 Anderson
- these polymers are composed of essentially pure blocks of the individual polymers and are prepared by anionic polymerisation techniques, followed in most cases by hydrogenation.
- the present invention provides a viscosity index improver additive composition which composition comprises from 1 to 25% by weight of a hydrogenated alkenylarene/conjugated diene interpolymer having a number average molecular weight greater than 20,000, from 30 to 72% by weight of a synthetic ester lubricating oil comprising an alkyl ester of a saturated aliphatic carboxylic acid and from 15 to 50% by weight of a non-synthetic mineral lubricating oil, all percentages by weight being expressed in terms of the total weight of the composition.
- the alkenylarene may be a vinyl mono-, di- or polyaromatic compound such as styrene or vinyl naphthalene, preferably styrene, alkylated styrene or halogen- substituted styrene, and the conjugated diene may be butadiene or isoprene.
- the interpolymer may be a random, block, or star-shaped copolymer. All these terms are well-known in the art and include such polymers as are described in the aforesaid patent specifications which are herein incorporated by reference.
- Suitable methods of hydrogenation are described for example in US Patent Nos. 3113986, 3205278 and 2864809.
- the object of hydrogenation is to saturate the olefinic double bonds in preference to the aromatic nucleus double bonds.
- the interpolymer has a number average molecular weight in the range 20,000 to 125,000, preferably from 25,000 to 100,000.
- a particularly suitable copolymer is a hydrogenated styrene/isoprene block copolymer of number average molecular weight in the range 50,000 to 100,000 and containing about 75% isoprene and 25% styrene, greater than 95% of the isoprene component being present in the 1,4- form in which greater than 95% of the olefinic double bonds are hydrogenated and the styrene component having less than 5% of the aromatic nucleus double bonds hydrogenated.
- the vinylarene/ conjugated diene interpolymer forms from 2 to 15% by weight of the composition.
- the alkyl ester of a saturated aliphatic carboxylic acid may suitably be a simple ester, diester, partial ester or complex ester formed from one or more C 10 to C 18 saturated organic mono- or polycarboxylic acids and one or more C 3 to Cg mono- or polyhydric alcohols.
- the ester is formed from two molecular proportions of a monohydric alcohol and one molecular proportion of a dicarboxylic acid, e.g. di(octyl) dodecane dioate.
- the synthetic ester lubricant is present in an amount in the range from 50 to 72% by weight.
- the non-synthetic mineral lubricating oil may suitably be the common solvent-treated or acid- treated mineral oils of the paraffinic, naphthenic or mixed paraffinic-naphthenic types.
- Preferred oils are the Solvent Neutral oils and in particular 150 Solvent Neutral oil.
- a particularly preferred composition comprises 4.5% by weight of a hydrogenated styrene/isoprene block copolymer of number average molecular weight in the range 50,000 to 100,000 and containing about 75% isoprene and 25% styrene, greater than 95% of the isoprene component being present in the 1,4- form in which greater than 95% of the olefinic double bonds are hydrogenated and the styrene component having less than 5% of the aromatic nucleus double bonds hydrogenated, hereinafter referred to as 'hydrogenated styrene/isoprene tapered' (HSIT) interpolymer, 70% by weight di(octyl) dodecane dioate and 25.5% by weight 150 Solvent Neutral lubricating oil.
- HSIT hydrogenated styrene/isoprene block copolymer of number average molecular weight in the range 50,000 to 100,000 and containing about 75% isoprene and 25% sty
- the proportion of non-synthetic mineral lubricating oil can be decreased and the proportion of synthetic ester lubricating oil increased by incorporating a small proportion of an olefinic homo-or copolymer such as an ethylene/propylene/non- conjugated diolefin terpolymer or a polybutene, particularly a polybutene, in the composition.
- an olefinic homo-or copolymer such as an ethylene/propylene/non- conjugated diolefin terpolymer or a polybutene, particularly a polybutene
- the invention also provides a viscosity index improver additive composition as hereinbefore described modified in the respects that the amount of synthetic ester lubricating oil is in the range from 40 to 80% by weight, the amount of non-synthetic mineral lubricating oil is in the range from 15 to 40% by weight and there is included from 1 to 25% by weight of an olefinic polymer.
- the olefinic polymer may be a homopolymer or a copolymer.
- the olefinic polymer is a polybutene of which polyisobutene is preferred.
- Suitable polybutenes may have a number average molecular weight in the range from 100 to 50,000.
- a finished lubricating oil composition comprising a major proportion of a lubricating oil base and a minor proportion of the viscosity index improver additive composition as described hereinbefore.
- the lubricating oil base may be derived from a variety of sources.
- the base oil may be derived from natural or synthetic sources which include animal oils, vegetable oils, mineral oils, synthetic hydrocarbon oils and synthetic ester oils.
- the amount of the additive composition present in the finished lubricating oil composition is an amount sufficient to improve the viscosity index of the composition. Generally from 0.05 to 10% by weight of the additive composition may be used, though in certain specialised applications up to 15% by weight may be required.
- the finished lubricating composition may also contain other additives conventionally employed in the art, such as dispersants, detergents, corrosion inhibitors, anti-wear agents, etc.
- Example 1 The same commercially available HSIT as used in Example 1 was found to be incompatible with di(octyl) dodecane dioate at all concentrations.
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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)
- Detergent Compositions (AREA)
- Sealing Material Composition (AREA)
Claims (13)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT81304395T ATE14451T1 (de) | 1980-09-24 | 1981-09-24 | Den viskositaetsindex verbessernde additivzusammensetzung. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8030785 | 1980-09-24 | ||
GB8030785 | 1980-09-24 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0048631A1 EP0048631A1 (de) | 1982-03-31 |
EP0048631B1 true EP0048631B1 (de) | 1985-07-24 |
Family
ID=10516249
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP81304395A Expired EP0048631B1 (de) | 1980-09-24 | 1981-09-24 | Den Viskositätsindex verbessernde Additivzusammensetzung |
Country Status (8)
Country | Link |
---|---|
EP (1) | EP0048631B1 (de) |
AT (1) | ATE14451T1 (de) |
AU (1) | AU549181B2 (de) |
DE (1) | DE3171493D1 (de) |
DK (1) | DK231082A (de) |
NO (1) | NO153261C (de) |
WO (1) | WO1982001009A1 (de) |
ZA (1) | ZA816646B (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9212330B2 (en) | 2012-10-31 | 2015-12-15 | Baker Hughes Incorporated | Process for reducing the viscosity of heavy residual crude oil during refining |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3630905A (en) * | 1968-11-19 | 1971-12-28 | Phillips Petroleum Co | Oil-extended vi improvers |
GB1378771A (en) * | 1971-03-05 | 1974-12-27 | Shell Int Research | Oil compositions |
FR2223450B1 (de) * | 1973-03-29 | 1976-05-21 | Rhone Progil | |
US3994815A (en) * | 1975-01-23 | 1976-11-30 | The Lubrizol Corporation | Additive concentrates and lubricating compositions containing these concentrates |
-
1981
- 1981-09-24 WO PCT/GB1981/000201 patent/WO1982001009A1/en active Application Filing
- 1981-09-24 DE DE8181304395T patent/DE3171493D1/de not_active Expired
- 1981-09-24 AU AU76452/81A patent/AU549181B2/en not_active Ceased
- 1981-09-24 ZA ZA816646A patent/ZA816646B/xx unknown
- 1981-09-24 EP EP81304395A patent/EP0048631B1/de not_active Expired
- 1981-09-24 AT AT81304395T patent/ATE14451T1/de not_active IP Right Cessation
-
1982
- 1982-05-19 NO NO821681A patent/NO153261C/no unknown
- 1982-05-21 DK DK231082A patent/DK231082A/da not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
EP0048631A1 (de) | 1982-03-31 |
NO821681L (no) | 1982-05-19 |
ZA816646B (en) | 1983-04-27 |
AU7645281A (en) | 1982-04-14 |
DK231082A (da) | 1982-05-21 |
NO153261C (no) | 1986-02-12 |
AU549181B2 (en) | 1986-01-16 |
ATE14451T1 (de) | 1985-08-15 |
WO1982001009A1 (en) | 1982-04-01 |
DE3171493D1 (en) | 1985-08-29 |
NO153261B (no) | 1985-11-04 |
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