CN1098346C - Universal machine oil composite - Google Patents
Universal machine oil composite Download PDFInfo
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- CN1098346C CN1098346C CN99125945A CN99125945A CN1098346C CN 1098346 C CN1098346 C CN 1098346C CN 99125945 A CN99125945 A CN 99125945A CN 99125945 A CN99125945 A CN 99125945A CN 1098346 C CN1098346 C CN 1098346C
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Abstract
The present invention relates to an antioxygenic and antirust compound additive for universal machine tool oil. On the basis of the total weight, the compound additive comprises 72 to 95% of liquid shielding phenol as an antioxidant, 1 to 8% of arylamine as antioxidant, 2 to 10% of benzotriazole as a metal passivator and 2 to 10% of alkenyl succinic acid as an antirust agent. The compound additive can also selectively contains non silicon type kilfoams and anti-emulsifiers. The present invention also relates to a universal machine oil composition which is prepared from base oil and the antioxygenic and antirust compound additive in definite proportions. The composition has superior properties of oxidation resistance, rust prevention, copper corrosion prevention, emulsion resistance, foam resistance, etc., can meet the usage requirements of universal machine tool oil with different viscosity levels, and can be used for machine tool components, such as hydraulic systems, circulation systems, gear boxes, etc.
Description
This explanation relates to a kind of composite additive that is used for general-purpose machine oil, and the universal machine oil composite that contains this additive.
General-purpose machine require to use L-HL oil, i.e. general-purpose machine oil, and this oily consumption is big, it is wide to use, and is the upgrading products of machinery oil.General-purpose machine oil requires to have performances such as good oxidative stability, rust-preventing characteristic, inhibition copper corrosion performance, resistance to emulsion, anti-spumescence and air release, therefore needs to add multiple functional additive, could satisfy the service requirements of oil product.
Early stage lathe adopts machinery oil with oil, does not add additive, and the oil product life-span generally has only 3 months to half a year.Subject matter is that the oil oxidation stability is poor, easily generates greasy filth, stops up oil circuit.Corrosion phenomena also takes place simultaneously.ISO in 1979 have announced the specification standards (ISO 3498-1979) of machine tool lubrication agent, require to use the refined mineral oil with good antioxygen rustless property.
U.S.3,872,048 adds 2 in mixing Dormant oils, 6-ditertbutylparacresol oxidation inhibitor and alkenyl succinic acid type or sulfonate type rust-preventive agent, be used for hydraulic fluid tank, headstock and the wheel casing of lathe, can reduce the wearing and tearing of machine tool lubrication position fastness, reduce temperature rise, prevent corrosion, prolonged more than one times the duration of service of oil product.
Ciba-Geige (the patent U.S.4 of the company of vapour Ba-Jia Ji) application, 701,273 with 124 Triazole shaped metal passivator-1-(two-(2-ethylhexyl)-aminomethylene)-124 Triazole, compound with at least a oxidation inhibitor that is selected from the oxidation inhibitor such as shield phenol type, arylamine type, be used for lubricating oil, the oil oxidation stability is greatly improved.
But general-purpose machine oil not only will have good antioxidant property, also need the rust-preventing characteristic of good match, EP 0239536 patent report has adopted beta-hydroxy aliphatic amide type rust-preventive agent and oxidation inhibitor, the compound use of metal passivator, obtain effect preferably, but do not take other performance demands of oil product into account, for example anti-foam, deemulsification performance etc.
U.S 5,902,777 patents have been introduced by 4,4 '-dioctyl diphenylamine, 2,6-di-tert-butylphenol-4-cresols, the hydraulic efficiency oil that tritolyl phosphate and Unimac 5680 triethylene tetramine component additive are modulated into, have good oxidization resistance energy and antifriction characteristic, and can suppress the formation of greasy filth, can be used for hydraulic machinery equipment.
The purpose of this invention is to provide a kind of antirust composite additive of antioxygen that is used for general-purpose machine oil.
Another object of the present invention provides a kind of universal machine oil composite, and it has performances such as good anti-oxidant, rust protection, inhibition copper corrosion, emulsion resistance, anti-foam, can satisfy L-HL hydraulic efficiency oil GB 11118-89 specification requirement.
The antirust composite additive of antioxygen that is used for general-purpose machine oil provided by the invention comprises following composition: with the recombiner gross weight is benchmark,
(I) liquid shield phenol type antioxidant, 72～95%, preferred 80～90%;
(II) arylamine type oxidation inhibitor, 1～8%, preferred 2～5%;
(III) 124 Triazole shaped metal passivator, 2～10%, preferred 4～7%;
(IV) alkenyl succinic acid type rust-preventive agent, 2～10%, preferred 4～8%;
The component of recombiner of the present invention (I) is the liquid shield phenol type antioxidant, wherein 2, and the heavy % in 6-di-tert-butylphenol content＞75, other is an o-tert-butyl phenol, 2,4-di-tert-butylphenol, 2,4,6-tri-tert-butyl phenol.This product domestic goods trade mark is T502, and the external trade mark has the Ethyl 4733 of Ethyl company.This product is in a liquid state, can arylamine type oxidation inhibitor, metal passivator, emplastic rust-preventive agent and other additive is miscible well, be modulated into the antirust recombiner of antioxygen, and easy to use.
The component of recombiner of the present invention (II) is an arylamine type oxidation inhibitor, comprises N-phenyl-a-naphthylamine, P, P '-di-t-butyl pentanoic, mixed alkyl diphenylamines, N Phenyl beta naphthylamine, alkylation N phenyl-a-naphthylamine.Above product all has commodity selling.
The component of recombiner of the present invention (III) is a 124 Triazole shaped metal passivator, and its structural formula is:
Wherein R is a butyl, and this compound chemistry name is called N, and N-di-n-butyl-aminomethylene-124 Triazole, the domestic goods trade mark are T551.This additive and phenol type, the compound use of amine type oxidation inhibitor have outstanding synergism, can obviously improve the oxidation stability of oil product.
The component of the present composition (IV) is a rust-preventive agent, can be dodecenylsuccinic acid or dodecenylsuccinic acid half ester.This class rust-preventive agent consumption is few, effective, and the former trade name is T746, and latter's trade name is T746A.
Can also optionally contain non-silicon type antifoamer (V) in the recombiner of the present invention, not reaching in the oil product whipability needs to add kilfoam under the situation of index request.Component (V) mainly comprises acrylate and alkyl oxide multipolymer, and the domestic goods trade mark is T912, and the composite anti-foam agent of T912 and silicon type kilfoam, and the domestic goods trade mark is T921.The non-silicon kilfoam of this class can have no adverse effect to the oil product air release property.With the recombiner gross weight is benchmark, and the content of non-silicon type antifoamer is 0.05～0.5%, preferred 0.1～0.3%.
Can also optionally contain non-emulsifying agent (VI) in the recombiner of the present invention, in order to improve the resistance to emulsification of oil product.The oil plant of deep refining can not use non-emulsifying agent.Component (VI) is an alkylene diamine oxozone trimethylene condenses, and the domestic goods trade mark is T1001.With the recombiner gross weight is benchmark, and the content of non-emulsifying agent is 5～25%, preferred 10～20%
Consisting of of universal machine oil composite provided by the invention: with the composition gross weight is benchmark, and the antirust composite additive 0.2～1.0% of antioxygen provided by the invention is preferred 0.3～0.8%, and surplus is a base oil.
Said base oil is a mineral lubricating oils, and wherein paraffin base lubricating oil can be 150SN, 200SN, 350SN, 650SN neutral oil, and refining means are clay-filtered or hydrofinishing.Intermediate base lubricating oil can be 150ZN or 600ZN neutral oil.The base oil viscosity grade can be N
32, N
46, N
68, N
100
Wherein non-silicon type antifoamer and non-emulsifying agent can join in the recombiner, also can directly join in the base oil.
Composite additive provided by the invention has made full use of the synergistic effect between the additive, shield phenol type antioxidant has the effect that stops radical, arylamine type oxidation inhibitor (N-phenyl-a-naphthylamine) is except that having the effect of the radical of termination, the effect that also has hydroperoxide decomposition, 124 Triazole shaped metal passivator can form passive film in the metallic surface, suppresses the katalysis of metal pair oil oxidation.The three is compounded with outstanding synergistic effect, makes oil product have good antioxidant property, prolongs the oil product usage period greatly.Because metal passivator also has the performance that suppresses copper corrosion, needn't add copper corrosion inhibitor again in the composition.Rust-preventive agent has been selected the alkenyl succinic acid type, and they have, and consumption is few, the characteristics of favorable rust preventing effect, and more much smaller than sulfonated petro-leum type rust-preventive agent to the detrimentally affect of oxidation susceptibility.Owing to utilized the synergistic effect between the above-mentioned multiple additives, reduced total consumption of additive, improved the economy and the practicality of recombiner.
Universal machine oil composite provided by the invention is modulated by a certain percentage by antirust recombiner of antioxygen provided by the invention and base oil and is formed, have performances such as good anti-oxidant, rust protection, anti-copper corrosion, emulsion resistance, anti-foam, can satisfy different viscosity grade (N
32, N
46, N
68, N
100) the service requirements of general-purpose machine oil.Said composition can be used for the parts such as hydraulic efficiency system, the recycle system and wheel casing of lathe.
The invention will be further described below by embodiment.
The antirust recombiner F-1 of embodiment 1 antioxygen
In the 200ml beaker, add 6.5g dodecenylsuccinic acid rust-preventive agent T746,4.1g 124 Triazole shaped metal passivator T551,2.0g N-phenyl-a-naphthylamine T531,80g liquid shield phenol type antioxidant T502 successively, be put on the well heater and heat, stir mixing with glass stick, 55 ± 5 ℃ of controlled temperature are kept 30min, make material even, obtain a transparent light brown liquid, nitrogen content: 1.12%.
The antirust recombiner F-2 of embodiment 2 antioxygens
In the 200ml beaker, add 6.5g dodecenylsuccinic acid half ester rust-preventive agent T746A, 4.0g 124 Triazole shaped metal passivator T551,2.4g alkylated diphenylamine (L-57), 88g liquid shield phenol type antioxidant T502 successively, be put on the well heater then and heat, stir mixing with glass stick, 55 ± 5 ℃ of controlled temperature are kept 30min, make material even, obtain a transparent light brown liquid, nitrogen content: 0.95%.
The antirust recombiner F-3 of embodiment 3 antioxygens
In the 200ml beaker, be weighed into 5.4g dodecenylsuccinic acid rust-preventive agent T746,5.7g 124 Triazole shaped metal passivator T551,2.5g N-phenyl-a-naphthylamine T531,83g liquid shield phenol type antioxidant T502 successively, be put on the well heater then and heat, stir mixing with glass stick, 55 ± 5 ℃ of controlled temperature are kept 30min, make material even, obtain a transparent light brown liquid, nitrogen content: 1.46%.
Embodiment 4
Base oil: (40 ℃ of viscosity are 30.52mm to the refinery 150SN of Yanshan Petrochemical company
2/ s)
Additive: 0.35 heavy %F-1
With above-mentioned percentage composition additive and above-mentioned base oil, 50～60 ℃ of stirring and dissolving, processed oil viscosity ν
40 ℃Be 30.27mm
2/ s, its performance meets L-HL oil standard GB11118-89, and is as shown in table 1.
Embodiment 5
Base oil: (40 ℃ of viscosity are 29.49mm to the refinery 150SN of Dalian Petrochemical Industry Company
2/ s)
Additive: 0.35 heavy %F-2
With above-mentioned percentage composition additive and above-mentioned base oil, 50～60 ℃ of stirring and dissolving, processed oil viscosity ν
40 ℃Be 29.23mm
2/ s, its performance meets L-HL oil standard GB11118-89, and is as shown in table 1.
Embodiment 6
Base oil: Jinan Refinery 150ZN, (40 ℃ of viscosity are 30.36mm to belong to intermediate base lubricating oil
2/ s)
Additive: 0.35 heavy %F-3
With above-mentioned percentage composition additive and above-mentioned base oil, 50～60 ℃ of stirring and dissolving, processed oil viscosity ν
40 ℃Be 30.09mm
2/ s, its performance meets L-HL oil standard GB11118-89, and is as shown in table 1.
Embodiment 7
Base oil: the refinery 150SN of Jinxi petro-chemical corporation (area, Liaohe River oil), 40 ℃ of viscosity are 30.23mm
2/ s.
Additive: 0.45 heavy %F-3
With above-mentioned percentage composition additive and above-mentioned base oil, 50～60 ℃ of stirring and dissolving, processed oil viscosity ν
40 ℃Be 29.98mm
2/ s, its performance meets L-HL oil standard GB11118-89, and is as shown in table 1.
Table 1 N
32L-HL oil compositions salient features
*For acid number reaches the 2mgKOH/g required time.
Embodiment 8
Base oil: Yanshan Petrochemical company refinery (paraffinic base), 50 parts of (weight) 150SN (viscosity ν
40 ℃Be 30.52mm
2/ s) and 50 parts of (weight) 350SN (viscosity ν
40 ℃Be 65.24mm
2/ s) mix base oil viscosity ν
40 ℃Be 43.87mm
2/ s.
Additive: 0.45 heavy %F-1; 0.05 heavy %T1001 non-emulsifying agent
With above-mentioned percentage composition additive and above-mentioned base oil 50～60 ℃ of stirring and dissolving, processed oil viscosity ν
40 ℃Be 43.40mm
2/ s, its performance meets L-HL oil standard GB11118-89, and is as shown in table 2.
Embodiment 9
Base oil: refinery 200SN (the viscosity ν of Dalian Petrochemical Industry Company
40 ℃Be 43.64mm
2/ s)
Additive: 0.45 heavy %F-2; 0.05 heavy %T1001
Above-mentioned percentage composition additive and above-mentioned base oil, 50～60 ℃ of stirring and dissolving, processed oil viscosity ν
40 ℃Be 42.96mm
2/ s, its performance meets L-HL oil standard GB11118-89, and is as shown in table 2.
Embodiment 10
Base oil: by 64 parts of (body) 150ZN of Jinan Refinery (viscosity ν
40 ℃Be 28.82mm
2/ s) and 36 parts of (body) 600ZN (viscosity ν
40 ℃Be 139.1mm
2/ s) blending forms base oil viscosity ν
40 ℃Be 43.67mm
2/ s.
Additive: 0.35 heavy %F-3; 0.05 heavy %T1001
Above-mentioned percentage composition additive and above-mentioned base oil, 50～60 ℃ of stirring and dissolving, processed oil viscosity ν
40 ℃Be 43.19mm
2/ s, its performance meets L-HL oil standard GB11118-89, and is as shown in table 2.
Embodiment 11
Base oil: 53 parts of (weight) 150SN of oil company, Maoming refinery and 47 parts of (weight) 350SN blendings form base oil viscosity ν
40 ℃Be 46.75mm
2/ s.
Additive: 0.4 heavy %F-1
Above-mentioned percentage composition additive and above-mentioned base oil 50～60 ℃ of stirring and dissolving, are added the non-silicon kilfoam of 4ppmT912, processed oil viscosity ν then
40 ℃Be 46.15mm
2/ s, its performance meets L-HL oil standard GB11118-89, and is as shown in table 2.
Embodiment 12
Base oil: refinery 350SN (the viscosity ν of Yanshan Petrochemical company
40 ℃Be 65.24mm
2/ s)
Additive: 0.45 heavy %F-1; 0.05 heavy %T1001
Above-mentioned percentage composition additive and above-mentioned base oil 50～60 ℃ of stirring and dissolving, are added the non-silicon kilfoam of 10ppmT921, processed oil viscosity ν then
40 ℃Be 64.37mm
2/ s, its performance meets L-HL oil standard GB11118-89, and is as shown in table 3.
Table 2 N
46L-HL oil compositions key property
*For acid number reaches the 2mgKOH/g required time.
Embodiment 13
Base oil: Dalian Petrochemical Industry Company's refinery is by 36 parts of (body) 200SN (viscosity ν
40 ℃Be 43.64mm
2/ s) and 64 parts of (body) 500SN (viscosity ν
40 ℃Be 85.62mm
2/ s) blending forms base oil viscosity ν
40 ℃Be 66.96mm
2/ s.
Additive: 0.55 heavy %F-1; 0.05 heavy %T1001
Above-mentioned percentage composition additive and above-mentioned base oil 50～60 ℃ of stirring and dissolving, are added the non-silicon kilfoam of 10ppmT912, processed oil viscosity ν then
40 ℃Be 66.48mm
2/ s, its performance meets L-HL oil standard GB11118-89, and is as shown in table 3.
Embodiment 14
Base oil: Jinan Refinery, by 42 parts of (body) 150ZN (viscosity ν
40 ℃Be 28.82mm
2/ s) and 58 parts of (body) 600ZN (viscosity ν
40 ℃Be 139.1mm
2/ s) blending forms base oil viscosity ν
40 ℃Be 62.84mm
2/ s.
Additive: 0.4 heavy %F-3
With above-mentioned percentage composition additive and above-mentioned base oil 50～60 ℃ of stirring and dissolving, processed oil viscosity ν
40 ℃Be 62.31mm
2/ s, its performance meets L-HL oil standard GB11118-89, and is as shown in table 3.
Embodiment 15
Base oil: Yanshan Petrochemical company refinery, by 45 parts of (weight) 350SN (viscosity ν
40 ℃Be 65.24mm
2/ s) and 55 parts of (weight) 650SN (viscosity ν
40 ℃Be 132.86mm
2/ s) blending forms base oil viscosity ν
40 ℃Be 95.12mm
2/ s.
Additive: 0.7 heavy %F-1; 0.05 heavy %T1001
With above-mentioned percentage composition additive and above-mentioned base oil (surplus), 50～60 ℃ of stirring and dissolving, processed oil viscosity ν
40 ℃Be 93.96mm
2/ s, its performance meets L-HL oil standard GB11118-89, and is as shown in table 3.
Table 3 N
68, N
100L-HL oil compositions key property
*For acid number reaches the 2mgKOH/g required time.
Embodiment 16
N with embodiment 8
46(approximately 30Kg) tests in the L-HL oil, the fuel tank of the X52K end mill of packing into.Main machining tool gear, work material is 40Cr45
#Steel and is tested driving under the commercially available L-HL oil similarity condition, and through 1638h, crude oil sample analysis the results are shown in Table 4.
Table 4 N
46L-HL oil real machine working order
| Embodiment 8 | Commercially available HL oil | Quality index | |||||||
| The service hours number | 0 | ?532 | ?1110 | ?1638 | ?0 | ?532 | ?1110 | ?1638 | |
| 40 ℃ of kinematic viscosity, mm 2/s | 43.87 | ?43.78 | ?43.13 | ?43.24 | ?44.90 | ?38.29 | ?37.83 | ?38.48 | 41.4- 50.6 |
| Liquid phase corrosion (A method) | Rustless | Rustless | Rustless | Rustless | Rustless | ||||
| The copper corrosion level | 1 | ?1 | ?1 | ?1 | ?1 | ?1 | ?1 | ?1 | 1 |
| Anti-spumescence, behind 24 ℃ 93 ℃ of the ml/ml 24 ℃ | 10/0 30/0 10/0 | ?10/0 ?20/0 ?10/0 | ?40/0 ?70/0 ?20/0 | ?10/0 ?20/0 ?10/0 | Be not more than 150,/10 150,/10 150/10 | ||||
| Demulsibility, liquid layer (54 ℃), min | 40-37-3 15.38 | ?40-37-3 ?22.66 | ?40-37-3 ?22.75 | ?2-78-0 ?40 | ?4-3-76 ?40 | ?3-78-0 ?40 | Be not more than 30 | ||
| Rotary oxygen bomb, min | 204 | ?245 | ?209 | ?210 | ?84 | ?102 | ?95 | ?106 | Report |
| Acid number, mgKOH/g | 0.086 | ?0.076 | ?0.071 | ?0.060 | ?0.038 | ?0.123 | ?0.121 | ?0.128 | Report |
| Colourity, number | 1.5 | ?2.0 | ?2.0 | ?2.0 | ?2.0 | ?2.0 | ?2.5 | ?2.5 | Report |
| Iron level, ppm | 0.4 | ?3.0 | ?2.6 | ?4.4 | ?0.35 | ?2.2 | ?3.2 | ?3.5 | Report |
Find out that from variations such as viscosity, resistance to emulsion, rotary oxygen bomb, acid numbers test oil (embodiment 8) is better than commercially available L-HL oil.
Embodiment 17 N
46The service condition of L-HL oil in lathe
N with embodiment 11
46L-HL oil, in the fuel tank of CA 6140 engine lathes of packing into, work material is A
3, 45,12Cr, Mn steel, rapid steel, copper, aluminium, cast iron etc., start reaches 2120h, the oil sample monitoring result sees Table 5.
The situation of table 5 embodiment 11 in the real machine running
| The service hours number | ?0 | ?264 | ?544 | ?864 | ?1056 | ?1560 | ?1728 | ?2120 |
| Kinematic viscosity (40 ℃), mm 2/s | ?45.87 | ?45.9 | ?45.8 | ?46.2 | ?46.35 | ?46.3 | ?46.5 | ?46.8 |
| Copper corrosion, level | ?1a | ?1a | ?1a | ?1a | ?1a | ?1a | ?1b | ?1b |
| Corrosion test (A method) | Rustless | Rustless | ||||||
| Emulsion-breaking test (54 ℃), min | ?40-37-3 ?10 | |||||||
| Rotary oxygen bomb, min | ?228 | ?198 | ||||||
| Acid number, mgKOH/g | ?0.05 | ?0.05 | ?0.06 | ?0.05 | ?0.07 | ?0.06 | ?0.07 | ?0.07 |
In viscosity, acid number variation, oil property is good.
Claims (12)
1. the antirust composite additive of antioxygen that is used for general-purpose machine oil is characterized in that, is benchmark with the recombiner gross weight, comprises following component: (I) 72～95% liquid shield phenol type antioxidants; (II) 1～8% arylamine type oxidation inhibitor; (III) 2～10% 124 Triazole shaped metal passivators; (IV) 2～10% alkenyl succinic acid type rust-preventive agent.
2. according to the described recombiner of claim 1, it is characterized in that each component concentration is: (I) 80～90% liquid shield phenol type antioxidants; (II) 2～5% arylamine type oxidation inhibitor; (III) 4～7% 124 Triazole shaped metal passivators; (IV) 4～8% alkenyl succinic acid type rust-preventive agent.
3. according to claim 1 or 2 described recombiners, it is characterized in that, wherein in the component (I), 2, the heavy % in 6-di-tert-butylphenol content＞75, other is an o-tert-butyl phenol, 2,4-di-tert-butylphenol, 2,4,6-tri-tert-butyl phenol.
4. according to claim 1 or 2 described recombiners, it is characterized in that wherein component (II) is selected from N-phenyl-a-naphthylamine, P, P '-di-t-butyl pentanoic, mixed alkyl diphenylamines, N Phenyl beta naphthylamine or alkylation N phenyl-a-naphthylamine.
5. according to claim 1 or 2 described recombiners, it is characterized in that wherein component (III) is N, N-di-n-butyl-aminomethylene-124 Triazole.
6. according to claim 1 or 2 described recombiners, it is characterized in that wherein component (IV) is dodecenylsuccinic acid or dodecenylsuccinic acid half ester.
7. according to claim 1 or 2 described recombiners, it is characterized in that wherein can also optionally contain non-silicon type antifoamer, content is 0.05～0.5%.
8. according to the described recombiner of claim 7, it is characterized in that said non-silicon type antifoamer is the composite anti-foam agent of acrylate and alkyl oxide multipolymer or itself and silicon type kilfoam.
9. according to claim 1 or 2 described recombiners, it is characterized in that wherein can also optionally contain non-emulsifying agent, content is 5～25%.
10. according to the described recombiner of claim 9, it is characterized in that said non-emulsifying agent is the condenses of amine and epoxide.
11. the purposes of the described composite additive of claim 1 is characterized in that, adds 0.2～1.0% the antirust composite additive of antioxygen in base oil.
12., it is characterized in that the viscosity grade of said base oil is N according to the described purposes of claim 11
32, N
46, N
68, N
100
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99125945A CN1098346C (en) | 1999-12-13 | 1999-12-13 | Universal machine oil composite |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN99125945A CN1098346C (en) | 1999-12-13 | 1999-12-13 | Universal machine oil composite |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1299860A CN1299860A (en) | 2001-06-20 |
| CN1098346C true CN1098346C (en) | 2003-01-08 |
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|---|---|---|---|
| CN99125945A Expired - Lifetime CN1098346C (en) | 1999-12-13 | 1999-12-13 | Universal machine oil composite |
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| CN (1) | CN1098346C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100497559C (en) * | 2006-04-07 | 2009-06-10 | 武汉材料保护研究所 | Efficient multifunctional lubricating additive |
| EP2771441B1 (en) | 2011-10-27 | 2018-10-03 | The Lubrizol Corporation | Lubricants with improved seal compatibility |
| CN112239694A (en) * | 2019-07-17 | 2021-01-19 | 中国石油化工股份有限公司 | Turbine oil composition and use thereof |
| CN114958470B (en) * | 2022-06-30 | 2023-08-11 | 福建清油夫实业有限公司 | Composite lubricating oil repairing additive and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3872048A (en) * | 1970-09-28 | 1975-03-18 | Us Navy | Hydraulic and lubricating oil composition |
| US5902777A (en) * | 1995-10-19 | 1999-05-11 | Idemitsu Kosan Co., Ltd. | Hydraulic working oil composition |
-
1999
- 1999-12-13 CN CN99125945A patent/CN1098346C/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3872048A (en) * | 1970-09-28 | 1975-03-18 | Us Navy | Hydraulic and lubricating oil composition |
| US5902777A (en) * | 1995-10-19 | 1999-05-11 | Idemitsu Kosan Co., Ltd. | Hydraulic working oil composition |
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|---|---|
| CN1299860A (en) | 2001-06-20 |
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