CN107250328B - Grease composition - Google Patents
Grease composition Download PDFInfo
- Publication number
- CN107250328B CN107250328B CN201680009344.6A CN201680009344A CN107250328B CN 107250328 B CN107250328 B CN 107250328B CN 201680009344 A CN201680009344 A CN 201680009344A CN 107250328 B CN107250328 B CN 107250328B
- Authority
- CN
- China
- Prior art keywords
- grease composition
- base oil
- thickener
- seal
- grease
- 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 - Fee Related
Links
- 239000004519 grease Substances 0.000 title claims abstract description 31
- 239000000203 mixture Substances 0.000 title claims abstract description 30
- 239000002562 thickening agent Substances 0.000 claims abstract description 10
- 229910052751 metal Inorganic materials 0.000 claims abstract description 9
- 239000002184 metal Substances 0.000 claims abstract description 9
- 229920013639 polyalphaolefin Polymers 0.000 claims abstract description 9
- 239000000194 fatty acid Substances 0.000 claims abstract description 8
- 235000014113 dietary fatty acids Nutrition 0.000 claims abstract description 7
- 229930195729 fatty acid Natural products 0.000 claims abstract description 7
- -1 fatty acid calcium salt Chemical class 0.000 claims abstract description 7
- 239000002199 base oil Substances 0.000 claims description 19
- 238000007789 sealing Methods 0.000 claims description 4
- 229920000459 Nitrile rubber Polymers 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 4
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 4
- 239000000654 additive Substances 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
- 239000000314 lubricant Substances 0.000 description 4
- 229910052750 molybdenum Inorganic materials 0.000 description 4
- 239000011733 molybdenum Substances 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- 229910052725 zinc Inorganic materials 0.000 description 4
- 239000011701 zinc Substances 0.000 description 4
- NLZUEZXRPGMBCV-UHFFFAOYSA-N Butylhydroxytoluene Chemical compound CC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 NLZUEZXRPGMBCV-UHFFFAOYSA-N 0.000 description 2
- 239000005069 Extreme pressure additive Substances 0.000 description 2
- XQVWYOYUZDUNRW-UHFFFAOYSA-N N-Phenyl-1-naphthylamine Chemical compound C=1C=CC2=CC=CC=C2C=1NC1=CC=CC=C1 XQVWYOYUZDUNRW-UHFFFAOYSA-N 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 239000003963 antioxidant agent Substances 0.000 description 2
- IOJUPLGTWVMSFF-UHFFFAOYSA-N benzothiazole Chemical compound C1=CC=C2SC=NC2=C1 IOJUPLGTWVMSFF-UHFFFAOYSA-N 0.000 description 2
- 235000010354 butylated hydroxytoluene Nutrition 0.000 description 2
- 239000004359 castor oil Substances 0.000 description 2
- 235000019438 castor oil Nutrition 0.000 description 2
- 150000004665 fatty acids Chemical class 0.000 description 2
- 229920001973 fluoroelastomer Polymers 0.000 description 2
- 238000009472 formulation Methods 0.000 description 2
- ZEMPKEQAKRGZGQ-XOQCFJPHSA-N glycerol triricinoleate Natural products CCCCCC[C@@H](O)CC=CCCCCCCCC(=O)OC[C@@H](COC(=O)CCCCCCCC=CC[C@@H](O)CCCCCC)OC(=O)CCCCCCCC=CC[C@H](O)CCCCCC ZEMPKEQAKRGZGQ-XOQCFJPHSA-N 0.000 description 2
- 239000003112 inhibitor Substances 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000006078 metal deactivator Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- JNYAEWCLZODPBN-JGWLITMVSA-N (2r,3r,4s)-2-[(1r)-1,2-dihydroxyethyl]oxolane-3,4-diol Chemical class OC[C@@H](O)[C@H]1OC[C@H](O)[C@H]1O JNYAEWCLZODPBN-JGWLITMVSA-N 0.000 description 1
- WJFKNYWRSNBZNX-UHFFFAOYSA-N 10H-phenothiazine Chemical compound C1=CC=C2NC3=CC=CC=C3SC2=C1 WJFKNYWRSNBZNX-UHFFFAOYSA-N 0.000 description 1
- HYZJCKYKOHLVJF-UHFFFAOYSA-N 1H-benzimidazole Chemical compound C1=CC=C2NC=NC2=C1 HYZJCKYKOHLVJF-UHFFFAOYSA-N 0.000 description 1
- 229910052582 BN Inorganic materials 0.000 description 1
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- YSMRWXYRXBRSND-UHFFFAOYSA-N TOTP Chemical compound CC1=CC=CC=C1OP(=O)(OC=1C(=CC=CC=1)C)OC1=CC=CC=C1C YSMRWXYRXBRSND-UHFFFAOYSA-N 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 description 1
- 239000012964 benzotriazole Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 159000000007 calcium salts Chemical class 0.000 description 1
- 150000007942 carboxylates Chemical class 0.000 description 1
- 150000001733 carboxylic acid esters Chemical class 0.000 description 1
- 238000007872 degassing Methods 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 239000003925 fat Substances 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- ZQKXQUJXLSSJCH-UHFFFAOYSA-N melamine cyanurate Chemical compound NC1=NC(N)=NC(N)=N1.O=C1NC(=O)NC(=O)N1 ZQKXQUJXLSSJCH-UHFFFAOYSA-N 0.000 description 1
- QLOAVXSYZAJECW-UHFFFAOYSA-N methane;molecular fluorine Chemical compound C.FF QLOAVXSYZAJECW-UHFFFAOYSA-N 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 description 1
- 229910052982 molybdenum disulfide Inorganic materials 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 229950000688 phenothiazine Drugs 0.000 description 1
- 150000003014 phosphoric acid esters Chemical class 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 150000003871 sulfonates Chemical class 0.000 description 1
- 150000003459 sulfonic acid esters Chemical class 0.000 description 1
- VLLMWSRANPNYQX-UHFFFAOYSA-N thiadiazole Chemical compound C1=CSN=N1.C1=CSN=N1 VLLMWSRANPNYQX-UHFFFAOYSA-N 0.000 description 1
- IKXFIBBKEARMLL-UHFFFAOYSA-N triphenoxy(sulfanylidene)-$l^{5}-phosphane Chemical compound C=1C=CC=CC=1OP(OC=1C=CC=CC=1)(=S)OC1=CC=CC=C1 IKXFIBBKEARMLL-UHFFFAOYSA-N 0.000 description 1
- XZZNDPSIHUTMOC-UHFFFAOYSA-N triphenyl phosphate Chemical compound C=1C=CC=CC=1OP(OC=1C=CC=CC=1)(=O)OC1=CC=CC=C1 XZZNDPSIHUTMOC-UHFFFAOYSA-N 0.000 description 1
- ITRNXVSDJBHYNJ-UHFFFAOYSA-N tungsten disulfide Chemical compound S=[W]=S ITRNXVSDJBHYNJ-UHFFFAOYSA-N 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
- C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
- C10M169/02—Mixtures of base-materials and thickeners
-
- 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
- C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, 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
- C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
- C10M169/04—Mixtures of base-materials and additives
-
- 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
- C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
- C10M169/04—Mixtures of base-materials and additives
- C10M169/041—Mixtures of base-materials and additives the additives being macromolecular compounds only
-
- 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
- C10M2205/028—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers containing aliphatic monomers having more than four carbon atoms
- C10M2205/0285—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers containing aliphatic monomers having more than four carbon atoms used as base material
-
- 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
- C10M2207/10—Carboxylix acids; Neutral salts thereof
- C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
- C10M2207/125—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids
- C10M2207/126—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids monocarboxylic
- C10M2207/1265—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids monocarboxylic used as thickening agent
-
- 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
- C10M2207/10—Carboxylix acids; Neutral salts thereof
- C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
- C10M2207/125—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids
- C10M2207/128—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids containing hydroxy groups; Ethers thereof
- C10M2207/1285—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids containing hydroxy groups; Ethers thereof used as thickening agents
-
- 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
- C10M2217/00—Organic macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2217/04—Macromolecular compounds from nitrogen-containing monomers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2217/045—Polyureas; Polyurethanes
- C10M2217/0456—Polyureas; Polyurethanes used as thickening agents
-
- 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
- C10N2010/00—Metal present as such or in compounds
- C10N2010/04—Groups 2 or 12
-
- 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
- C10N2020/00—Specified physical or chemical properties or characteristics, i.e. function, of component of lubricating compositions
- C10N2020/01—Physico-chemical properties
- C10N2020/02—Viscosity; Viscosity index
-
- 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
- C10N2030/02—Pour-point; Viscosity index
-
- 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
- C10N2030/06—Oiliness; Film-strength; Anti-wear; Resistance to extreme pressure
-
- 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
- C10N2030/36—Seal compatibility, e.g. with rubber
-
- 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
- C10N2040/02—Bearings
-
- 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
- C10N2050/00—Form in which the lubricant is applied to the material being lubricated
- C10N2050/10—Semi-solids; greasy
Abstract
The present invention discloses a grease composition comprising a polyalphaolefin and a thickener which is a fatty acid calcium salt. The composition is suitable for use at the seal-metal interface in a sealed bearing.
Description
Technical Field
The present invention relates to a grease composition and to the use of said grease composition for sealing bearings.
Background
Sealed bearings are used in many different types of machines. The seal prevents the ingress of dirt and water which could damage the bearing and impair the function of the machine. Typical seal materials include acrylonitrile-butadiene rubber (NBR) and Fluoroelastomers (FKM). Grease is provided at the seal contact points to extend the life of the seal. There is significant friction at the seal-metal interface, which can lead to heat generation and efficiency loss. The present inventors sought to provide a grease composition that can be used to reduce the friction at the seal-metal interface and thereby improve the efficiency of sealing bearings.
Disclosure of Invention
The present inventors have unexpectedly discovered that the combination of a low viscosity polyalphaolefin base oil with a calcium thickener can provide a grease that specifically produces low friction at the seal-metal interface. Accordingly, the present invention provides a grease composition comprising from 40 wt% to 90 wt% of a first base oil component which is a polyalphaolefin and has a dynamic viscosity at 100 ℃ of between 1mm2S to 5mm2(ii)/s, wherein weight percentages are based on the weight of the grease composition; and comprises thatC13-C21A thickener of a fatty acid calcium salt.
In another aspect, the invention provides the use of a grease composition for sealing at a seal-metal interface in a bearing, wherein the grease composition comprises a base oil and a thickener, wherein the base oil comprises from 40 wt% to 90 wt% of a first base oil which is a polyalphaolefin and has a dynamic viscosity at 100 ℃ of between 1mm2S to 5mm2(ii)/s, wherein the weight percentages are by weight of the grease composition; and contains is C13-C21A thickener of a fatty acid calcium salt.
Detailed Description
The grease composition comprises from 40 wt% to 90 wt% of a first base oil component which is a polyalphaolefin and has a dynamic viscosity at 100 ℃ of between 1mm2S to 5mm2Is between/s. The grease composition may comprise other base oils, but preferably the first base oil component comprises at least 50 wt.%, and preferably at least 80 wt.% of the total base oil (based on the total weight of base oils in the grease composition).
The thickener in the grease composition is C13-C21Fatty acid calcium salts, and preferably hydrogenated castor oil fatty acid calcium salts. The amount of thickener is preferably from 2 to 18 wt.%, more preferably from 2 to 14 wt.%, based on the weight of the grease composition.
The grease composition of the present invention may further comprise antioxidants, rust inhibitors, oiliness agents, extreme pressure additives, anti-wear agents, solid lubricants, metal deactivators, polymers, detergents, and other additives.
Antioxidants include, for example, 2, 6-di-tert-butyl-4-methylphenol, 2, 6-di-tert-butyl-P-cresol, P' -dioctyldiphenylamine, N-phenyl-alpha-naphthylamine and phenothiazine.
Rust inhibitors include paraffin oxides, metal carboxylates, metal sulfonates, carboxylic esters, sulfonic esters, succinic esters, sorbitan esters, and various amine salts.
Oiliness agents, extreme pressure additives, and antiwear agents include, for example, zinc sulfurized dialkyldithiophosphate, zinc sulfurized diaryldithiophosphate, zinc sulfurized dialkyldithiocarbamate, zinc sulfurized diaryldithiocarbamate, molybdenum sulfurized dialkyldithiophosphate, molybdenum sulfurized diaryldithiophosphate, molybdenum sulfurized dialkyldithiocarbamate, molybdenum sulfurized diaryldithiocarbamate, organomolybdenum complex, sulfurized olefin, triphenyl phosphate, triphenyl phosphorothioate, tricresyl phosphate, other phosphate esters, and sulfurized fats and oils.
The solid lubricant includes, for example, molybdenum disulfide, graphite, boron nitride, melamine cyanurate, PTFE (polytetrafluoroethylene), tungsten disulfide, mica, graphite fluoride, and the like.
Metal deactivators include, for example, N' -disalicylidene-1, 2-diaminopropane, benzotriazole, benzimidazole, benzothiazole, and thiadiazole.
The grease composition may be manufactured using standard grease manufacturing routes.
The grease composition of the present invention is suitable for use at the seal-metal interface in a sealed bearing. The seal is suitably made of a material such as acrylonitrile-butadiene rubber (NBR), hydrotreated acrylonitrile-butadiene rubber (HNBR), or Fluoroelastomer (FKM). The bearing will contain a lubricant and the grease composition of the present invention should be applied in such a way that the grease composition of the present invention is not contaminated by the lubricant.
Examples of the invention
The invention is explained in further detail below with the aid of examples and comparative examples, without the invention being restricted in any way by these examples.
Greases were prepared by adding base oil and fatty acid to a kettle, heating to 85-90 ℃ (at 3 ℃/min) and stirring at 100 rpm. Calcium hydroxide in powder form was added followed by water. The kettle was closed and heated to 135 deg.C (at 2 deg.C/min). The contents were stirred at 100rpm and the wall temperature limit of the kettle was set to 140 ℃. After about 40 minutes after 135 ℃ had been reached, the kettle was vented. Additional base oil was heated to 80 ℃ and then added to the kettle by a pump. The contents were stirred at 150rpm for 5 minutes and the product temperature was maintained between 130 ℃ and 135 ℃. A nitrogen line was connected to the kettle and the contents were exposed to a nitrogen flow for 15 minutes, thereby dehydrating the sample. The contents were allowed to cool to 100 deg.C (at 2 deg.C/min) with stirring at 100 rpm. The additives are added at 80 ℃ or lower, diluted with additional base oil. After addition of the additive, the contents were stirred at 100rpm for 1 minute. The contents were then cooled to 50-60 deg.C (controlled by wall temperature setting: 20 deg.C at 5 deg.C/min and stirring at 100 rpm). Degassing was started at 70 ℃ using-150 mbar vacuum for 10 minutes and stirring at 50 rpm. The product was homogenized at 1X 300 bar.
All formulations are summarized in table 1 below, with amounts given as weight percentages based on the total weight of the formulation.
TABLE 1
PAO 2.0 is a polyalphaolefin and has a viscosity of 2.0cSt at 100 ℃. XHVI 3.0 and XHVI 4.0 are base oils prepared by the Fischer-Tropsch process and obtained from Shell (Shell). The viscosity of XHVI 3.0 at 100 ℃ is 3.0cSt and the viscosity of XHVI 4.0 at 100 ℃ is 4.0 cSt. HCOFA is hydrogenated castor oil fatty acid. In each of the examples and comparative examples, the additive package was the same.
Grease was applied to the NBR seal. The sealed bearing was run for 24 hours, and then the friction force was measured.
The results are given in table 2:
TABLE 2
| Friction horizontal (Ncm) | |
| Example 1 | 1.88 |
| Comparative example 1 | 3.06 |
| Comparative example 2 | 3.12 |
The grease composition of the present invention, wherein the base oil is a polyalphaolefin, exhibits significantly reduced friction compared to the grease composition of the comparative example, wherein the base oil has a similar viscosity but is made by the fischer-tropsch process.
Claims (1)
1. Use of a grease composition for sealing at a seal-metal interface in a bearing, wherein the grease composition comprises a base oil and a thickener, wherein the base oil comprises from 40 wt% to 90 wt% of a first base oil component which is a polyalphaolefin and has a dynamic viscosity at 100 ℃ of between 1mm2S to 5mm2(ii) wherein the weight percentages are by weight of the grease composition; and contains is C13-C21A thickener of a fatty acid calcium salt, wherein the amount of thickener is from 2 wt% to 18 wt%, based on the weight of the grease composition.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP15154756 | 2015-02-11 | ||
| EP15154756.9 | 2015-02-11 | ||
| PCT/EP2016/052733 WO2016128403A1 (en) | 2015-02-11 | 2016-02-09 | Grease composition |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107250328A CN107250328A (en) | 2017-10-13 |
| CN107250328B true CN107250328B (en) | 2021-05-07 |
Family
ID=52469660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201680009344.6A Expired - Fee Related CN107250328B (en) | 2015-02-11 | 2016-02-09 | Grease composition |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US20180044605A1 (en) |
| EP (1) | EP3256552B1 (en) |
| JP (1) | JP6937241B2 (en) |
| CN (1) | CN107250328B (en) |
| BR (1) | BR112017017308B1 (en) |
| RU (1) | RU2710550C2 (en) |
| WO (1) | WO2016128403A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108970484A (en) * | 2018-07-13 | 2018-12-11 | 桐乡凡达石油制品有限公司 | A method of reconciliation bucket and the preparation cold-heading oil using the reconciliation bucket |
| CN108970482A (en) * | 2018-07-13 | 2018-12-11 | 桐乡凡达石油制品有限公司 | A kind of method of agitator and the preparation environmental protection cutting oil using the agitator |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6239085B1 (en) * | 1998-10-23 | 2001-05-29 | Exxon Research And Engineering Company | Grease composition containing pao, alkylaromatic synthetic fluid and white oil for industrial bearings |
| RU2529461C1 (en) * | 2013-08-30 | 2014-09-27 | Общество с ограниченной ответственностью "Инженерная смазочная компания "МИСКОМ" | Grease lubricant for heavily loaded rolling friction units |
Family Cites Families (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2151641A (en) * | 1936-12-21 | 1939-03-21 | Emery Industries Inc | Grease base and method of making |
| US2822331A (en) * | 1954-02-03 | 1958-02-04 | Texas Co | Anhydrous calcium 12-hydroxy stearate grease |
| US2862884A (en) * | 1954-03-23 | 1958-12-02 | Texas Co | Process for anhydrous calcium 12-hydroxy stearate and estolide containing grease |
| US2877181A (en) * | 1956-05-02 | 1959-03-10 | Texas Co | Stabilized calcium fatty acid base grease |
| US4879054A (en) * | 1988-02-29 | 1989-11-07 | Amoco Corporation | Process for producing low temperature high performance grease |
| JP4075469B2 (en) * | 2001-07-23 | 2008-04-16 | 日本精工株式会社 | sticker |
| JP2003171683A (en) * | 2001-12-07 | 2003-06-20 | Nsk Ltd | Biodegradable grease composition and rolling device |
| US7576044B2 (en) * | 2003-11-14 | 2009-08-18 | Exxonmobil Research And Engineering Company | PAO oil selection to control lubricating grease evaporation and low temperature |
| US7592497B2 (en) * | 2006-03-24 | 2009-09-22 | Exxonmobil Chemical Patents Inc. | Low viscosity polyalphapolefin based on 1-decene and 1-dodecene |
| JP5973120B2 (en) * | 2006-05-31 | 2016-08-23 | シエル・インターナシヨネイル・リサーチ・マーチヤツピイ・ベー・ウイＳｈｅｌｌ Ｉｎｔｅｒｎａｔｉｏｎａｌｅ Ｒｅｓｅａｒｃｈ Ｍａａｔｓｃｈａｐｐｉｊ Ｂｅｓｌｏｔｅｎ Ｖｅｎｎｏｏｔｓｈａｐ | Method and apparatus for producing soap concentrates, lubricating compositions and combinations thereof |
| CN101511986A (en) * | 2006-10-07 | 2009-08-19 | Gkn动力传动系统国际有限责任公司 | Grease composition including at least two different molybdenum compounds for constant velocity joints |
| US20090088353A1 (en) * | 2007-09-27 | 2009-04-02 | Chevron U.S.A. Inc. | Lubricating grease composition and preparation |
| WO2009073135A1 (en) * | 2007-11-29 | 2009-06-11 | Ineos Usa Llc | Low viscosity oligomer oil product, process, and composition |
| JP4730714B2 (en) * | 2008-08-28 | 2011-07-20 | 日産自動車株式会社 | Grease composition |
| BR112012002361B1 (en) * | 2009-08-05 | 2018-12-11 | Skf B.V. | grease composition, method for manufacturing a grease composition, and use of a grease composition |
| DE102010006745A1 (en) * | 2010-02-02 | 2011-08-04 | Fuchs Petrolub AG, 68169 | Greases containing lignosulfonate, their preparation and use |
| WO2012004198A1 (en) * | 2010-07-05 | 2012-01-12 | Shell Internationale Research Maatschappij B.V. | Process for the manufacture of a grease composition |
| CN102876434B (en) * | 2012-10-17 | 2014-07-16 | 中国石油化工股份有限公司 | Lubricating grease composition for automobile glass lifter and preparation method of lubricating grease composition |
| CN103555397A (en) * | 2013-10-23 | 2014-02-05 | 中国石油化工股份有限公司 | Anhydrous calcium-based lubricating grease composition and preparation method thereof |
| JP5764242B2 (en) * | 2014-07-01 | 2015-08-19 | 出光興産株式会社 | Grease composition and lubrication method |
-
2016
- 2016-02-09 CN CN201680009344.6A patent/CN107250328B/en not_active Expired - Fee Related
- 2016-02-09 US US15/549,705 patent/US20180044605A1/en not_active Abandoned
- 2016-02-09 EP EP16703553.4A patent/EP3256552B1/en active Active
- 2016-02-09 BR BR112017017308-5A patent/BR112017017308B1/en not_active IP Right Cessation
- 2016-02-09 RU RU2017129694A patent/RU2710550C2/en active
- 2016-02-09 WO PCT/EP2016/052733 patent/WO2016128403A1/en active Application Filing
- 2016-02-09 JP JP2017541618A patent/JP6937241B2/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6239085B1 (en) * | 1998-10-23 | 2001-05-29 | Exxon Research And Engineering Company | Grease composition containing pao, alkylaromatic synthetic fluid and white oil for industrial bearings |
| RU2529461C1 (en) * | 2013-08-30 | 2014-09-27 | Общество с ограниченной ответственностью "Инженерная смазочная компания "МИСКОМ" | Grease lubricant for heavily loaded rolling friction units |
Also Published As
| Publication number | Publication date |
|---|---|
| US20180044605A1 (en) | 2018-02-15 |
| EP3256552B1 (en) | 2019-07-31 |
| JP6937241B2 (en) | 2021-09-22 |
| BR112017017308A2 (en) | 2018-04-03 |
| BR112017017308B1 (en) | 2022-06-28 |
| RU2017129694A3 (en) | 2019-07-24 |
| WO2016128403A1 (en) | 2016-08-18 |
| CN107250328A (en) | 2017-10-13 |
| RU2710550C2 (en) | 2019-12-27 |
| JP2018505281A (en) | 2018-02-22 |
| EP3256552A1 (en) | 2017-12-20 |
| RU2017129694A (en) | 2019-03-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7312185B2 (en) | Rock bit grease composition | |
| JP5330774B2 (en) | Grease composition for resin lubrication | |
| JP5481169B2 (en) | Extreme pressure lubricant composition | |
| JP6777285B2 (en) | Mixed grease | |
| JP6448801B2 (en) | High temperature lubricant | |
| JP2010037529A (en) | Grease composition for use in resin lubrication | |
| JP2009221307A (en) | Grease composition for resin | |
| US20130310292A1 (en) | Grease composition | |
| CN107250328B (en) | Grease composition | |
| JP5481158B2 (en) | Extreme pressure lubricant composition | |
| JP2008274141A (en) | Grease composition | |
| JP2014214264A (en) | Grease production method and grease | |
| JP6448638B2 (en) | Improved roll stability in grease compositions | |
| JP5627921B2 (en) | Grease composition for resin | |
| KR101694631B1 (en) | Novel Thickener and Grease Compostion containing it | |
| JP5490041B2 (en) | Grease composition for resin | |
| JP2018030970A (en) | Lithium composite soap-based grease composition | |
| JP2010174204A (en) | Lubricant composition for plunger | |
| JP2016037554A (en) | Grease composition | |
| US20240093117A1 (en) | Additive to grease and grease composition | |
| US20230257677A1 (en) | Polyurea lubricating greases containing carbonates, and their use | |
| WO2023182532A1 (en) | Grease composition | |
| US20230035205A1 (en) | Use of a lubricating grease composition having a high upper use temperature | |
| JP2006077205A (en) | Grease composition for direct-acting device and direct-acting device | |
| JP2016089007A (en) | Lubricant composition for sinter-containing oil bearing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210507 |