CN114149850A - Anti-friction agent and preparation method thereof - Google Patents
Anti-friction agent and preparation method thereof Download PDFInfo
- Publication number
- CN114149850A CN114149850A CN202111431512.XA CN202111431512A CN114149850A CN 114149850 A CN114149850 A CN 114149850A CN 202111431512 A CN202111431512 A CN 202111431512A CN 114149850 A CN114149850 A CN 114149850A
- Authority
- CN
- China
- Prior art keywords
- friction
- antioxidant
- base oil
- percent
- water
- 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.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- 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
- C10M169/048—Mixtures of base-materials and additives the additives being a mixture of compounds of unknown or incompletely defined constitution, non-macromolecular and macromolecular 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
- C10M2207/281—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
- 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
- C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
- C10M2209/104—Polyethers, i.e. containing di- or higher polyoxyalkylene groups of alkylene oxides containing two carbon atoms 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
- C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
- C10M2215/22—Heterocyclic nitrogen compounds
- C10M2215/221—Six-membered rings containing nitrogen and carbon 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
- 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
- C10M2219/106—Thiadiazoles
-
- 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
- C10M2223/00—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions
- C10M2223/06—Organic non-macromolecular compounds containing phosphorus as ingredients in lubricant compositions having phosphorus-to-carbon bonds
- C10M2223/063—Ammonium or amine salts
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Lubricants (AREA)
Abstract
The invention discloses an anti-friction agent. The friction reducing agent comprises the following components: water-insoluble polyether base oil, a friction modifier, an antioxidant and an antirust additive; the friction modifier is a mixture of liquid amine phosphonate and fatty acid ester. The friction reducing agent can greatly improve the lubricity, and is not easy to generate paint black and sediment of oil products of a machine table and to break needles.
Description
Technical Field
The invention relates to the technical field of lubricating oil, in particular to an anti-friction agent and a preparation method thereof.
Background
There are many types of lubricants currently on the market for seamless knitting machine lubrication, including aqueous and oil-based lubricants. The water-based lubricant can generate the phenomena of corrosion and yellow robe in use, and the oil-based lubricant has the phenomena of system temperature rise, machine oil product blackening, precipitation, needle breakage and the like.
Disclosure of Invention
Based on this, the invention needs to provide an anti-friction agent.
The invention also provides a preparation method of the anti-friction agent.
In order to realize the purpose of the invention, the invention adopts the following technical scheme:
an anti-friction agent comprises the following components: water-insoluble polyether base oil, a friction modifier, an antioxidant and an antirust additive; the friction modifier is a mixture of liquid amine phosphonate and fatty acid ester.
The friction reducing agent has good lubricity, precipitates and colloids are not generated when the friction reducing agent is used at high temperature, a chemical reaction film and an adsorption film of an additive are formed on the surface of a lubricating part by adding liquid ammonium phosphonate, the strength and the thickness of the oil film are increased, the friction coefficient is reduced, the tooth surface is effectively prevented from being abraded, and a firm lubricating protection film can be formed on the surface of a metal by being matched with fatty acid ester, so that the antifriction property of an oil product is greatly improved, and the lubricity of the friction reducing agent is greatly improved; and because the high temperature resistance capability is strong, the oil product of the machine is not easy to generate paint black and precipitate, and the needle is not easy to fold.
In some embodiments, the liquid phosphonic acid amine is mixed with the fatty acid ester in a ratio of 1: 1-3 by mass ratio.
In some of these embodiments, the rust inhibiting additive is a mercaptothiadiazole derivative.
In some embodiments, the mercaptothiadiazole derivative is a 1,3, 4-mercaptothiadiazole dimer derivative.
In some of these embodiments, the water insoluble polyether base oil is a polyethylene glycol ether.
In some of these embodiments, the antioxidant is a mixture of an amine antioxidant and a phenolic antioxidant.
In some embodiments, the amine antioxidant is a ketoamine trimethyl dihydroquinoline oligomer and the phenolic antioxidant is a high molecular weight phenolic ester.
In some embodiments, the friction reducing agent comprises the following components in parts by weight: 2 to 8 percent of friction modifier, 0.2 to 1.8 percent of antioxidant, 0.3 to 1 percent of antirust additive and the balance of water-insoluble polyether base oil.
In some embodiments, the friction reducing agent comprises the following components in parts by weight: 2 to 8 percent of friction modifier, 0.2 to 1.8 percent of antioxidant, 0.3 to 1 percent of antirust additive, 0.001 to 0.08 percent of defoaming agent and the balance of water-insoluble polyether base oil.
The preparation method of the friction reducer comprises the following steps:
adding part of water-insoluble polyether base oil into a container, heating to 110-140 ℃, keeping for the first time, adding an antioxidant into the container, and stirring for 15-30 min under heat preservation;
adding the rest water-insoluble polyether base oil into the container, adding a friction modifier and an antirust additive, controlling the temperature to be 80-90 ℃, and stirring for not less than 40min to obtain crude oil;
and filtering the crude oil to obtain a finished product.
Detailed Description
In order that the invention may be more fully understood, reference will now be made to the following description. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
The invention provides an anti-friction agent, which comprises the following components: water-insoluble polyether base oil, a friction modifier, an antioxidant and an antirust additive; the friction modifier is a mixture of liquid amine phosphonate and fatty acid ester.
Wherein, the water-insoluble polyether base oil is polyethylene glycol ether, the polyethylene glycol ether is prepared by ring-opening copolymerization of ethylene oxide and propylene oxide, and has excellent viscosity-temperature performance and high viscosity index; better low-temperature fluidity and low pour point; because of the polarity of polyether molecules, an oil film is easily formed on a friction surface, and the lubricating oil has good lubricity; the thermal oxidation stability of the polyether is similar to that of mineral oil, but the sensitivity of the polyether to an antioxidant is better than that of the mineral oil, and the polyether is easy to chain-break at high temperature in the presence of oxygen to generate carbonyl and carboxyl compounds which are volatile at high temperature, so that the polyether cannot generate precipitates and colloids when used at high temperature; the raw material of the polyether, namely the alkylene oxide, is a petrochemical product, is low in price and easy to obtain, and has high cost performance; and the polyether is non-toxic, environment-friendly and biodegradable.
The friction modifier is a mixture of liquid phosphonic acid amine and fatty acid ester. The liquid amine phosphonate is a mixture of amine phosphonate, and a chemical reaction film and an adsorption film of an additive are formed on the surface of the lubricating part, so that the strength and the thickness of an oil film are increased, the friction coefficient is reduced, and the tooth surface is effectively prevented from being abraded; the fatty acid ester is a double-quaternary fatty acid ester and a derivative thereof, can adsorb the metal surface to form a firm lubricating protective film, and greatly improves the antifriction property of the oil product.
Preferably, the liquid phosphonic acid amine and fatty acid ester are present in a ratio of 1: 1-3 by mass ratio. After being mixed according to the mass ratio, the two can respectively play the advantages thereof to jointly form the high temperature resistance and oxidation resistance effects.
The antioxidant is a mixture of amine antioxidant and phenol antioxidant. The amine antioxidant is a high-temperature antioxidant with excellent performance, has the characteristics of good thermal stability, outstanding oxidation resistance under high-temperature conditions and good oil solubility, is compatible with the phenol antioxidant for use, is combined with water-insoluble polyether base oil, and can exert better high-temperature oxidation resistance.
In one embodiment, the amine antioxidant is a ketoamine trimethyl dihydroquinoline oligomer; the phenolic antioxidant is high molecular weight phenolic ester. The two antioxidants have good compatibility and good high-temperature oxidation resistance.
In one embodiment, the rust inhibiting additive is a mercaptothiadiazole derivative. The mercapto thiadiazole derivative is a 1,3, 4-mercapto thiadiazole dimer derivative, and can form a mercapto thiadiazole protective coating on the surface of a lubricating part to achieve the effects of corrosion prevention and rust prevention.
In an embodiment, the wear-reducing agent further includes an antifoaming agent.
Preferably, the defoaming agent is a non-silicon type defoaming agent. The defoaming agent can be matched with the water-insoluble polyether base oil and the antioxidant, so that the generation of foam is inhibited to a greater extent, and the performance of the friction reducer is improved.
In one embodiment, the non-silicon defoamer is an acrylate non-silicon defoamer.
The anti-friction agent comprises the following components in parts by weight: 2 to 8 percent of friction modifier, 0.2 to 1.8 percent of antioxidant, 0.3 to 1 percent of antirust additive and the balance of water-insoluble polyether base oil. The friction reducer prepared by adopting the proportion has better performance.
In one embodiment, the anti-friction agent comprises the following components in parts by weight: 2 to 8 percent of friction modifier, 0.2 to 1.8 percent of antioxidant, 0.3 to 1 percent of antirust additive, 0.001 to 0.08 percent of defoaming agent and the balance of water-insoluble polyether base oil.
The invention also provides a preparation method of the anti-friction agent, which comprises the following steps:
adding part of water-insoluble polyether base oil into a container, heating to 110-140 ℃, keeping for the first time, adding an antioxidant into the container, and stirring for 15-30 min under heat preservation;
adding the rest water-insoluble polyether base oil into a container, adding a friction modifier and an antirust additive, controlling the temperature to be 80-90 ℃, and stirring for not less than 40min to obtain crude oil;
and filtering the crude oil to obtain a finished product.
Wherein the amount of the insoluble polyether base oil added for the first time is two thirds, and the amount added for the second time is one third.
The friction reducing agent has good lubricity, precipitates and colloids are not generated when the friction reducing agent is used at high temperature, a chemical reaction film and an adsorption film of an additive are formed on the surface of a lubricating part by adding liquid ammonium phosphonate, the strength and the thickness of the oil film are increased, the friction coefficient is reduced, the tooth surface is effectively prevented from being abraded, and a firm lubricating protection film can be formed on the surface of a metal by being matched with fatty acid ester, so that the antifriction property of an oil product is greatly improved, and the lubricity of the friction reducing agent is greatly improved; and because the high temperature resistance capability is strong, the oil product of the machine is not easy to generate paint black and precipitate, and the needle is not easy to fold.
Embodiments of the present invention will be further illustrated by the following examples.
Example one
The friction reducer of the embodiment comprises the following components in parts by weight: 91.12% of insoluble polyether base oil, 3% of liquid amine phosphonate, 4% of fatty acid ester, 0.5% of ketoamine trimethyl dihydroquinoline oligomer, 0.7% of high molecular weight phenolic ester, 0.6% of mercaptothiadiazole derivative and 0.08% of non-silicon defoaming agent.
Example two
The friction reducer of the embodiment comprises the following components in parts by weight: 89.85% of insoluble polyether base oil, 4% of liquid amine phosphonate, 4% of fatty acid ester, 0.9% of ketoamine trimethyl dihydroquinoline oligomer, 0.9% of high molecular weight phenolic ester, 0.3% of mercaptothiadiazole derivative and 0.05% of non-silicon defoaming agent.
EXAMPLE III
The friction reducer of the embodiment comprises the following components in parts by weight: 94.799% of insoluble polyether base oil, 1% of liquid amine phosphonate, 3% of fatty acid ester, 0.1% of ketoamine trimethyl dihydroquinoline oligomer, 0.1% of high molecular weight phenolic ester, 1% of mercaptothiadiazole derivative and 0.001% of non-silicon type defoaming agent.
Example four
The friction reducer of the embodiment comprises the following components in parts by weight: 97.37% of insoluble polyether base oil, 1% of liquid amine phosphonate, 1% of fatty acid ester, 0.1% of ketoamine trimethyl dihydroquinoline oligomer, 0.1% of high molecular weight phenolic ester, 0.4% of mercaptothiadiazole derivative and 0.03% of non-silicon defoaming agent.
EXAMPLE five
The friction reducer of the embodiment comprises the following components in parts by weight: 91.62% of insoluble polyether base oil, 3% of liquid amine phosphonate, 4% of fatty acid ester, 0.7% of high molecular weight phenolic ester, 0.6% of mercaptothiadiazole derivative and 0.08% of non-silicon type defoaming agent.
Comparative example 1
The comparative example provides an anti-friction agent, which consists of the following components in parts by weight: 91.12% of insoluble polyether base oil, 7% of fatty acid ester, 0.5% of ketoamine trimethyl dihydroquinoline oligomer, 0.7% of high molecular weight phenolic ester, 0.6% of mercaptothiadiazole derivative and 0.08% of non-silicon type defoaming agent.
Comparative example No. two
The comparative example provides an anti-friction agent, which consists of the following components in parts by weight: 91.12% of insoluble polyether base oil, 7% of liquid amine phosphonate, 0.5% of ketoamine trimethyl dihydroquinoline oligomer, 0.7% of high molecular weight phenolic ester, 0.6% of mercaptothiadiazole derivative and 0.08% of non-silicon type defoaming agent.
Comparative example No. three
The comparative example provides an anti-friction agent, which consists of the following components in parts by weight: 91.12% of insoluble polyether base oil, 3% of liquid amine phosphonate, 4% of fatty acid ester, 1.2% of secondary diarylamine, 0.6% of thiodiazole derivative and 0.08% of non-silicon type defoaming agent.
Comparative example No. four
The comparative example provides an anti-friction agent, which consists of the following components in parts by weight: 91.12% of insoluble polyether base oil, 3% of liquid amine phosphonate, 4% of fatty acid ester, 0.5% of ketoamine trimethyl dihydroquinoline oligomer, 0.7% of high molecular weight phenolic ester, 0.6% of emulsified silicone oil and 0.08% of non-silicon type defoaming agent.
The high temperature resistance, oxidation resistance, rust resistance and lubricating property of the friction reducers of the above examples and comparative examples will be compared below, and the experimental method is as follows:
high temperature resistance: the SH/T0193 standard was used for the determination (spinning aeroelastic method). Oxidation resistance: the SH/T0123 standard was used for the determination. Antirust performance: GB/T11143 standard test is adopted. The lubricating property is determined by adopting SH/T0189 standard.
The specific results are shown in the table I.
As can be seen from the above table, the friction reducers of each example, examples one to four, used a particular base oil with a particular friction modifier, while comparative example one used only one friction modifier as compared to comparative example two, each example had better lubricity than comparative example one and comparative example two. The wear-reducing agent of each embodiment has excellent high-temperature resistance, and the high-temperature resistance is between 285 ℃ and 300 min. Each example used a specific antioxidant to blend the base oil and friction modifier, while comparative example three used an antioxidant not defined in this invention to blend the same base oil and friction modifier, with a reduction in oxidation resistance. Comparative example four using a rust inhibitor not defined in the present invention, the workability was reduced.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. The anti-friction agent is characterized by comprising the following components:
water-insoluble polyether base oil, a friction modifier, an antioxidant and an antirust additive; the friction modifier is a mixture of liquid amine phosphonate and fatty acid ester.
2. The friction reducer according to claim 1, wherein the liquid amine phosphonate and the fatty acid ester are present in a ratio of 1: 1-3 by mass ratio.
3. The friction reducer according to claim 1 or 2, characterized in that the rust inhibiting additive is a mercaptothiadiazole derivative.
4. The friction reducer according to claim 3, wherein the mercaptothiadiazole derivative is a 1,3, 4-mercaptothiadiazole dimer derivative.
5. The friction reducer according to claim 1, wherein the water-insoluble polyether base oil is a polyethylene glycol ether.
6. The friction reducing agent of claim 1, wherein the antioxidant is a mixture of an amine antioxidant and a phenolic antioxidant.
7. The friction reducer according to claim 6, wherein the amine antioxidant is a ketoamine trimethyl dihydroquinoline oligomer and the phenolic antioxidant is a high molecular weight phenolic ester.
8. The friction reducer according to claim 1, characterized in that it comprises the following components in parts by weight: 2 to 8 percent of friction modifier, 0.2 to 1.8 percent of antioxidant, 0.3 to 1 percent of antirust additive and the balance of water-insoluble polyether base oil.
9. The friction reducer according to claim 8, characterized in that it comprises the following components in parts by weight: 2 to 8 percent of friction modifier, 0.2 to 1.8 percent of antioxidant, 0.3 to 1 percent of antirust additive, 0.001 to 0.08 percent of defoaming agent and the balance of water-insoluble polyether base oil.
10. A method of producing a friction reducing agent according to any of claims 1 to 9, comprising the steps of:
adding part of water-insoluble polyether base oil into a container, heating to 110-140 ℃, keeping for the first time, adding an antioxidant into the container, and stirring for 15-30 min under heat preservation;
adding the rest water-insoluble polyether base oil into the container, adding a friction modifier and an antirust additive, controlling the temperature to be 80-90 ℃, and stirring for not less than 40min to obtain crude oil;
and filtering the crude oil to obtain a finished product.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111431512.XA CN114149850A (en) | 2021-11-29 | 2021-11-29 | Anti-friction agent and preparation method thereof |
| PCT/CN2021/137054 WO2023092693A1 (en) | 2021-11-29 | 2021-12-10 | Anti-wear agent and preparation method therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111431512.XA CN114149850A (en) | 2021-11-29 | 2021-11-29 | Anti-friction agent and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114149850A true CN114149850A (en) | 2022-03-08 |
Family
ID=80784316
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111431512.XA Pending CN114149850A (en) | 2021-11-29 | 2021-11-29 | Anti-friction agent and preparation method thereof |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN114149850A (en) |
| WO (1) | WO2023092693A1 (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB0004051D0 (en) * | 1995-10-30 | 2000-04-12 | Seagate Technology | A hydro bearing disc drive lubricant |
| CN102433198A (en) * | 2011-10-21 | 2012-05-02 | 鞍山海华油脂化学有限公司 | Novel full synthetic industrial gear oil composition and preparation method thereof |
| CN103289797A (en) * | 2013-06-18 | 2013-09-11 | 上海禾泰特种润滑技术有限公司 | Worm and gear oil composition and preparation method thereof |
| CN104862055A (en) * | 2015-06-05 | 2015-08-26 | 广西大学 | Lubricant combination for cold tension reducing hafnium alloy tube |
| WO2019005738A1 (en) * | 2017-06-27 | 2019-01-03 | The Lubrizol Corporation | Lubricating composition for and method of lubricating an internal combustion engine |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SG11201906193XA (en) * | 2017-02-01 | 2019-08-27 | Exxonmobil Res & Eng Co | Lubricating engine oil and method for improving engine fuel efficiency |
-
2021
- 2021-11-29 CN CN202111431512.XA patent/CN114149850A/en active Pending
- 2021-12-10 WO PCT/CN2021/137054 patent/WO2023092693A1/en unknown
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB0004051D0 (en) * | 1995-10-30 | 2000-04-12 | Seagate Technology | A hydro bearing disc drive lubricant |
| CN102433198A (en) * | 2011-10-21 | 2012-05-02 | 鞍山海华油脂化学有限公司 | Novel full synthetic industrial gear oil composition and preparation method thereof |
| CN103289797A (en) * | 2013-06-18 | 2013-09-11 | 上海禾泰特种润滑技术有限公司 | Worm and gear oil composition and preparation method thereof |
| CN104862055A (en) * | 2015-06-05 | 2015-08-26 | 广西大学 | Lubricant combination for cold tension reducing hafnium alloy tube |
| WO2019005738A1 (en) * | 2017-06-27 | 2019-01-03 | The Lubrizol Corporation | Lubricating composition for and method of lubricating an internal combustion engine |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2023092693A1 (en) | 2023-06-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2611894B1 (en) | Corrosion inhibiting polyalkylene glycol-based lubricant compositions | |
| EP2121805A1 (en) | Lubricant compositions and methods of making same | |
| WO2014189711A1 (en) | Polyalkylene glycols useful as lubricant additives for hydrocarbon base oils | |
| CN104087384A (en) | Coal slurry oil fuel engine oil composition | |
| JPS5951996A (en) | Multifunctional additive for power transmission shift fluid | |
| CN105713701A (en) | Additive composition for steam turbine lubricating oil | |
| CN101595156B (en) | Composition and method | |
| CN110628485A (en) | Synthetic ester type flame-retardant hydraulic oil | |
| CN106947570A (en) | A kind of antiwear hydraulic oil and preparation method thereof | |
| CN109825354A (en) | A kind of racing car special lube and preparation method thereof | |
| CN114149850A (en) | Anti-friction agent and preparation method thereof | |
| CN116606686A (en) | Water-based total-synthesis metal cutting fluid and preparation method thereof | |
| CN115772437A (en) | High-low temperature universal optical instrument oil | |
| CN115820332A (en) | Water-based fully-synthetic cutting fluid and preparation method and application thereof | |
| CN111321030A (en) | Food-grade flame-retardant hydraulic fluid composition containing water-soluble polymer | |
| CN108587757A (en) | A kind of environmentally friendly, high-performance aluminium alloy cutting fluid | |
| JP2021515816A (en) | Modified oil-soluble polyalkylene glycol | |
| CN111205919B (en) | Environment-friendly biostable cutting fluid and preparation method thereof | |
| CN106833839A (en) | Biodegradable gear oil composition and preparation method thereof | |
| CN114717039A (en) | Water-soluble polymer-containing flame-retardant hydraulic fluid complexing agent and preparation method thereof | |
| CN106635247A (en) | Environment-friendly hydraulic oil composition | |
| CN111040853A (en) | Environment-friendly rare earth ion coated shock absorber oil composition and preparation method thereof | |
| CN109439404A (en) | A kind of synthesis ester type fire resistant hydraulic oil | |
| Yu et al. | Development of environmentally friendly water-based synthetic metal-cutting fluid | |
| CN115651744B (en) | Environment-friendly microemulsion cutting fluid |
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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220308 |