CN1346873A - Lubricating oil additive based on cermet lubrication mechanism - Google Patents

Lubricating oil additive based on cermet lubrication mechanism Download PDF

Info

Publication number
CN1346873A
CN1346873A CN 01141635 CN01141635A CN1346873A CN 1346873 A CN1346873 A CN 1346873A CN 01141635 CN01141635 CN 01141635 CN 01141635 A CN01141635 A CN 01141635A CN 1346873 A CN1346873 A CN 1346873A
Authority
CN
China
Prior art keywords
additive
oil
lubricating oil
test
lubricating
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.)
Granted
Application number
CN 01141635
Other languages
Chinese (zh)
Other versions
CN1130447C (en
Inventor
吴比尔
吴玛克
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangxi Yu Neng lubricating oil Co., Ltd
Original Assignee
YUNENG PETRO-CHEMICAL Co LTD DAQING
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by YUNENG PETRO-CHEMICAL Co LTD DAQING filed Critical YUNENG PETRO-CHEMICAL Co LTD DAQING
Priority to CN 01141635 priority Critical patent/CN1130447C/en
Publication of CN1346873A publication Critical patent/CN1346873A/en
Application granted granted Critical
Publication of CN1130447C publication Critical patent/CN1130447C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Lubricants (AREA)

Abstract

A lubricating oil additive based on the libricating mechanism of cermet is prepared from mineral oil, alkali-earth metal sulfonate, polyboroamine, atoleine, zinc dialkyldithiophosphate, molybdenum dialkyldithiophosphate and arene solvent. It can be converted to chemical-bond ceramic structure of molybdenum phosphate and boron nitride in friction part, resulting in reducing wear and temp of engine, increasing efficiency of fuel oil, and decreasing tail gas exhaust and noise.

Description

A kind of lubricating oil additive of based on cermet lubrication mechanism
Technical field
The invention belongs to the lubricant technical field, more particularly, the present invention relates to a kind of additive that can be dissolved in present all lubricant products mutually.
Background technology
Lubricating oil is called as the blood of mechanical industry, does not have lubricating oil also just not have mechanical industry.In recent years, along with oil engine develops towards the dynamic performance of high thermal efficiency, specific power and the economic performance and the minimizing pollutant emission performance direction of reduction fuel consumption, the I. C. engine oil Product Renewal is very fast.But, because from three, the forties establishes traditional lubrication theory and is difficult to break through, so lubricating system still rests on four, the fifties level.Traditional lubricating oil is to reach lubricant effect by the viscosity of oil film, normally adds suitable additive such as anticorrosion, rust-preventive agent, dispersion agent, extreme-pressure additive etc. in natural or synthetic grease again.Though different additives can reach lubricant effect in various degree under different user modes, but all there are some defectives such as clogged oil line, high toxicity and pollution etc., even more serious is traditional lubricating oil and additive is owing to be to rely on oil film to reach lubricated, therefore in case pasta does not contact or contact surface when too thin, in the time of lighting by the cooling shape as engine, often cause big friction of moment and abrasive parts using.In order to solve the massive losses that mechanical means forms because of insufficient lubrication, the lubricated expert of educational circles of various countries research frictional wear is trying hard to break through existing conventional lubrication mode, is devoted to research and develop that purposes is in extensive range, the action period is lasting, capability and performance stable and the novel lubricant product of compliance with environmental protection requirements.
Summary of the invention
The objective of the invention is to overcome the shortcoming of prior art, propose a kind of excellent property, the far-ranging novel lubricating oil additive of purposes.
Technical scheme of the present invention and lubrication principle:
The present invention creatively is applied to lubrication technology with the ceramic metal high-tech.It is superpower, super tough that ceramic metallic material has, and the characteristics of superslide, thermostable for optimal material in world's material science and technology, generally are applied to aerospace.The present invention develops the compositions of additives of being made up of mineral oil, alkaline earth metal sulfonate, poly-boron amide, whiteruss, two hydrocarbon carbophenothions acid molybdenum, two hydrocarbon disulfide group zinc phosphates and aromatic solvent, after this additive passes through lubricating oil engaging friction parts, borrow chemical coupling plating method, automatically form active layer in the metallic surface, and in the parts operation process, being converted into molybdenum phosphate, the boron nitride chemical bond ceramic structure of one micron of thickness less than, nonvolatil chemical bonded refractory is in the metallic surface.Active layer is softening with the metallic surface projection in transition process, form a super even surface, in mix use with oil, make two friction surfaces separately, can not directly contact, frictional force obviously reduces during such two parts phase mutual friction, and skin friction coefficient can hang down to 0.001, assurance equipment can be given full play to function, and makes the parts abrasion reduce to almost nil.
The composition of additive of the present invention and content thereof (is 100 in composition weight sum) oil mineral base oil 55-65%, alkaline earth metal sulfonate 1.5-2.5%, poly-boron amide 0.4-0.8%, whiteruss 22-30%, two hydrocarbon carbophenothions acid molybdenum 0.8-1.5%, two hydrocarbon disulfide group zinc phosphate 1.2-2.5%, aromatic solvent 8-4%.
Described oil mineral base oil is that the code name that comprises that is made by oil is the base oil of 100SN, 150SN, 900DN, 600ZW, their performance is seen " Hou Xianglin chief editor " Chinese oil Refining Technologies " (Sinopec press; 1991, P573-575) ".
Described alkaline earth metal sulfonate is selected from one or more mixtures that comprise calcium sulphonate, barium sulfonate, sulfonic acid magnesium.It has good detergency and certain dispersiveness and rust-preventing characteristic.
Described aromatic solvent comprises dimethylbenzene and C 10-C 18Benzene-like compounds.
Described whiteruss, two hydrocarbon carbophenothions acid molybdenum, two hydrocarbon disulfide group zinc phosphates all are commercially available prod.
The preparation method of additive of the present invention: add each component in the mediation still of belt stirrer, start and stir, the control top temperature is 80-85 ℃, stirs one hour, to the whole mixings of additive composition, is as clear as crystal viscous liquid, the storage tank of packing into then.The product physicochemical property sees Table 1.
Additive of the present invention can be applicable to various lubricating oil or lubricating grease, and its add-on is the 2-15% of lubricating oil or lubricating grease volume.
Product of the present invention working mechanism is a ceramic metal chemistry bond structure principle, additive is prepared by lubricant base and other composition, and the additive of preparation makes an addition in lubricating oil or the lubricating grease, make metal friction surface produce the function of self-lubricating, change traditional lubricating oil mechanism fully, therefore the additive of developing has good performance, no matter be lab investigation, or practical application all obtains best proof:
(1) significantly reduces the internal combustion engine wearing and tearing, increase service life of a machine.Employing contains the engine of the profit oil oil treatment of additive of the present invention, can under the inorganic oil state, move 4,400,000 times, used the vehicle of ceramic metal lubricating oil additive, in travel 1966 kilometers record of wound inorganic oil in 1998, therefore machine is in service, need not overhaul, and progressively realize the supreme ideal of zero wearing and tearing.
(2) reduce the internal combustion temperature significantly, can reduce by 37%.
(3) improve the Working environment of engine effectively, kind can increase by 7 horsepower in one second.
(4) use the lube product that contains additive of the present invention, can improve fuel efficiency, reduce gasoline, diesel consumption.Through the Yunnan Guanyuan monitoring station test of energy-conservation inspection center of Chinese transportation portion, save gasoline 12.7%, be the best product of all lubricating oil fuel-economizings both at home and abroad.Can save gasoline in actual use and reach 35%, save diesel oil and reach 25%.
(5) obviously reduce exhaust emissions, can reduce tail gas CO28-40%, He18-26%, NOx50-80%.
(6) do not contain any solid additives, non-corrosiveness, corrosion protection, antirust.
(7) reduce noise energy 50%, also have the function of cleaning engine in addition.
In sum, additive of the present invention can be widely used in the lubricant of space flight, military affairs, high-tech and standard machinery, can bring considerable economic and social benefit to save energy and environment protection.
Embodiment
Further specify characteristics of the present invention below by specific embodiment.
Example 1~3
Example 1~3 is the composition and the content of additive of the present invention, sees table 2 for details.Concrete preparation method: in the mediation still of belt stirrer, add each composition, stirred one hour, be as clear as crystal viscous liquid, in the storage tank of packing into.
Example 4
This example is the lubricating oil friction-wear test that is added with 2~15% example 2 additives of the present invention.Used base oil is 15W/40SE lubricating oil (Great Wall Hi Grade Lubricant Co.), 150SN (Dalian Petro-Chemical Company).The results are shown in Table 3 and table 4.Grinding defect diameter in the table 3 (mm) test condition: 1200 rev/mins, 75 ℃, D 60min 15kg(reciprocity ASTM D2783); Kilocalorie is stung load (kg) test condition: normal temperature (reciprocity ASTM D4172); Grinding defect diameter in the table 4 (mm) test condition: 75 ℃, 1200 rev/mins, D 60min 15kg, grinding defect diameter (mm) test condition: 75 ℃, 1200 rev/mins, D 15kg 60min
Test result: be added with additive of the present invention in 150SN neutral oil and 15W/40SE lubricating oil after, grinding defect diameter reduces to some extent, and add-on improved 47%, 16% and 13% respectively at 5% o'clock; Lubricity increases substantially, in 150SN neutral oil the card sting the load maximum can improve 42%.
Example 5
This example is the anti-attrition abrasion resistance test that SD40 gasoline engine oil (Daqing Petrochemical head factory) adds example 1 additive of the present invention.
One. the abrasion resistance test
Trier: trier is decreased in reciprocating type friction
Sample: GCr15 steel ball and GGr15 steel bar
Test conditions: 22 kilograms of load, reciprocating frequence 25 times/minute, 28 ℃ of temperature
Test-results: the utmost point behind base oil and adding 10% additive urgently is worth (ratio of load and stable back polishing scratch area) and is respectively 208N/mm 2, 472N/mm 2, the extreme pressure value improves 125%
Conclusion: in the SD40 gasoline engine oil, add the abrasion resistance that 10% additive of the present invention can increase substantially lubricating oil.
Two. the anti-attrition performance test
Trier: MPX200 (should change trier factory)
Sample: go up ring and be the GCr15 steel loop, following ring is a copper ring
Sample: go up ring and be the GCr15 steel loop, following ring is a copper ring
Test conditions: 10,20,40 kilograms of load, trier rotating speed are 900r/min and 1440r/min, and temperature is a room temperature
Test-results: the frictional coefficient contrast sees Table 5 under the various load.As shown in Table 5, adding 10% additive of the present invention in SD40 vapour axle machine oil can make frictional coefficient reduce 15-20%.
Example 6
This example is the lubricating oil copper strip test that is added with example 1 additive 2%, 5% in 150SN neutral oil.
Copper strip test the results are shown in Table 6 with reference to the method for GB5096-85.As shown in Table 6, it is qualified to add 2% and 5% additive copper sheet corrosion of the present invention at 150SN neutral oil.
Example 7
This example is to add and the result of use contrast test that does not add additive of the present invention at the Jetta car, and test is a Great Wall machine oil with base oil, measuring unit: Beijing Institute of Technology's vehicle dynamic quality and professional testing laboratory of emission test country.
" motor road test method general rule " GB/T12543-90;
" automobile acceleration test method " GB/T12543-90;
" automotive fuel wastage test method " GB/T12545-90;
" light-duty vehicle tailpipe emission standard " GB/T14761.1-93;
" light-duty vehicle steam discharge pollutent testing method " GB/T11642-93.
Detected result 6
(1) not doping result:
(1) 50KM/h constant-speed driving fuel consumption of 100km 5.3L/100KM;
(2) ECE15 operating mode fuel consumption 12.855L/100KM;
(3) ECE15 operating mode emission status: CO84.11g/ test, HC+NOx8.68g/ test
(4) the 0-100KM/h starting is 23.3 seconds between adding;
(5) the most high-grade pick-up period is 30.0 seconds.
(2) add example additive result
(I) add 10% additive:
(1) ECE15 operating mode emission status: CO80-96g/ test, HC+NOx7.31g/ test;
(2) the 0-100km/h pickup time is 22.0 seconds;
(3) the most high-grade pick-up period is 28.0 seconds.
(II) add 6% additive:
(4) 50km/h constant-speed driving fuel consumption of 100km 4.928L/100km;
(5) ECE15 operating mode fuel consumption is 11.607L/100km;
(6) ECE15 operating mode emission status: CO81.91g/ test, HC+NOx6.82g/ test;
(7) the 0-100km/h pickup time is 21.70 seconds;
The above results draws as drawing a conclusion:
(a) behind adding 10% additive, ECE15 operating mode emission status: the CO quantity discharged reduces the 3.15g/ test, improves 3.75%, and the HC+NOx quantity discharged reduces 1.55g/ to be tested, and improves 17.86%; Accelerated condition: the 0-100km/h pick-up period shortens 1.3 seconds, improves 5.58%, and the most high-grade pick-up period shortens 2.0 seconds, improves 66.7%.
(b) behind adding 6 additives, the fuel economy situation: 50km/h constant-speed driving fuel consumption of 100km reduces 0.372L, improves 7.02%, and ECE15 operating mode fuel consumption reduces 1.248L, improves 9.71%; ECE15 operating mode emission status: the CO quantity discharged reduces the 2.20g/ test, improves 2.62%, and the HC+NOx quantity discharged reduces the 1.86g/ test, improves 21.43%; Accelerated condition: the 0-100km/h pick-up period shortens 1.6 seconds, improves 6.87%.Table 1
Project Test result Project Test result
Physical condition outward appearance smell burning-point (℃) (ASTM D-92) proportion (15.6 ℃) specific refractory power, n D 20Viscosity, pool (25 ℃) heating condition loss amount (130 ℃, 2 hours) %, solubility in water Viscous liquid brown liquid neutrality>160 1.2-1.27 1.510-1.513 14.0<0.25 do not dissolve Thermolysis total acid value copper corrosion dielectric strength Form the oxide compound of following composition at combustion position: calcium, molybdenum, boron 0 1a 35kv
Table 2
Project Example 1 Example 2 Example 3
Base oil * ????62% ????60% ??55%
Calcium sulphonate ????1.6% ????2% ??2.2%
Poly-boron amide ????0.6% ????0.5% ??0.8%
Whiteruss ????23% ????25% ??27%
Two hydrocarbon carbophenothions acid molybdenum ????1.5% ????1% ??1.0%
Two hydrocarbon disulfide group zinc phosphates ????1.3% ????1.5% ??2.0%
Dimethylbenzene ????10% ????10% ??12%
* annotate: the base oil code name of example 1 and example 3 is a 100SN neutral oil, and the base oil code name of example 2 is a 150SN neutral oil.Table 3
The sample title Grinding defect diameter (mm) Kilocalorie is stung load (kg)
150SN neutral oil ????0.65 ??????40
150SN neutral oil+2% additive ????0.40 ??????50
150SN neutral oil+5% additive ????0.34 ??????52
150SN neutral oil+10% additive ????0.34 ??????55
150SN neutral oil+15% additive ????0.34 ??????70
Table 4
The sample title Grinding defect diameter (mm) Kilocalorie is stung load (kg)
????15W/40SE ????0.25 ?????0.40
The 15W/40SE+5% additive ????0.22 ?????0.35
The 15W/40SE+8% additive ????0.21 ?????0.35
The 15W/40SE+15% additive ????0.21 ?????0.35
Table 5
Frictional coefficient load (kg) Lubricating oil
The SD40 gasoline engine oil The SD40+10% additive Reduce per-cent
?????10 ????0.2-0.17 ??0.2-0.17
?????20 ????0.15-0.13 ??0.126-0.11 ??15-20%
?????40 ????0.117-0.10 ??0.086-0.080 ??15-20%
Table 6
The sample title Rating result
150SN neutral oil ?2×1a
150SN neutral oil+2% additive ?2×1a
150SN neutral oil+5% additive ?2×1a

Claims (5)

1. the lubricating oil additive of a based on cermet lubrication mechanism is characterized in that composition and content thereof (is 100 in composition weight sum): oil mineral base oil 55-65%, alkaline earth metal sulfonate 1.5-2.5%, poly-boron amide 0.4-0.8%, whiteruss 22-30%, two hydrocarbon carbophenothions acid molybdenum 0.8-1.5%, two hydrocarbon disulfide group zinc phosphate 1.2-2.5%, aromatic solvent 8-14%.
2. according to the described additive of claim 1, it is characterized in that described alkaline earth metal sulfonate is selected from and comprise wherein one or more mixtures of calcium sulphonate, barium sulfonate, sulfonic acid magnesium.
3. according to the described additive of claim 1, it is characterized in that described aromatic solvent comprises dimethylbenzene and C 10-C 18Benzene-like compounds.
4. the preparation method of the described additive of claim 1: add each component in the mediation still of belt stirrer, start and stir, the control top temperature is 80-85 ℃, to the whole mixings of additive composition, is as clear as crystal viscous liquid and gets final product.
5. the described additive of claim 1 can be applicable to various lubricating oil or lubricating grease, and its add-on is the 2-15% of lubricating oil or lubricating grease volume.
CN 01141635 2001-09-29 2001-09-29 Lubricating oil additive based on cermet lubrication mechanism Expired - Fee Related CN1130447C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 01141635 CN1130447C (en) 2001-09-29 2001-09-29 Lubricating oil additive based on cermet lubrication mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 01141635 CN1130447C (en) 2001-09-29 2001-09-29 Lubricating oil additive based on cermet lubrication mechanism

Publications (2)

Publication Number Publication Date
CN1346873A true CN1346873A (en) 2002-05-01
CN1130447C CN1130447C (en) 2003-12-10

Family

ID=4676296

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 01141635 Expired - Fee Related CN1130447C (en) 2001-09-29 2001-09-29 Lubricating oil additive based on cermet lubrication mechanism

Country Status (1)

Country Link
CN (1) CN1130447C (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101027380B (en) * 2004-10-19 2013-04-10 新日本石油株式会社 Lubricant composition and antioxidant composition
CN103396862A (en) * 2013-07-29 2013-11-20 韩炳德 Nanoscale metal ceramization lubricant additive and preparation method therefor
US8603955B2 (en) 2004-10-19 2013-12-10 Nippon Oil Corporation Lubricant composition and antioxidant composition
CN105202351A (en) * 2014-06-25 2015-12-30 上银科技股份有限公司 Linear device with heating lubricating element and synthetic lubricating oil used by same

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101027380B (en) * 2004-10-19 2013-04-10 新日本石油株式会社 Lubricant composition and antioxidant composition
US8603955B2 (en) 2004-10-19 2013-12-10 Nippon Oil Corporation Lubricant composition and antioxidant composition
US8709989B2 (en) 2004-10-19 2014-04-29 Nippon Oil Corporation Lubricant composition and antioxident composition
CN103396862A (en) * 2013-07-29 2013-11-20 韩炳德 Nanoscale metal ceramization lubricant additive and preparation method therefor
CN105202351A (en) * 2014-06-25 2015-12-30 上银科技股份有限公司 Linear device with heating lubricating element and synthetic lubricating oil used by same

Also Published As

Publication number Publication date
CN1130447C (en) 2003-12-10

Similar Documents

Publication Publication Date Title
Caines et al. Automotive lubricants reference book
CN106497654A (en) A kind of graphene-containing lubricating oil and preparation method thereof
CN104745278A (en) Environment-friendly and energy-saving diesel engine oil and preparation method thereof
CN1869179A (en) A method of lubricating a crosshead engine
CN1392228A (en) Lubricating oil composition
JP2555326B2 (en) Liquid lubricating oil mixture composition
KR19980702500A (en) Method for preparing iron-phosphate conversion surface
CN107892978A (en) A kind of long-life energy-saving diesel engine oil composition and preparation method thereof
CN102295978B (en) Lubricating oil for internal combustion engines and preparation method thereof
CN1238481C (en) Rich fuel multi-grade environmental protection type oil for internal comustion engine and its production method
CN1130447C (en) Lubricating oil additive based on cermet lubrication mechanism
KR20080032200A (en) Fuel and lubricant additives and methods for improving fuel economy and vehicle emissions
US4336149A (en) Fuel economy in internal combustion engines
CN110373253A (en) It is a kind of to meet the fierce low viscosity abrasion-proof energy-saving lubricating oil and preparation method thereof driven
CN111363607A (en) Super-long-service-life engine oil and preparation method thereof
US4927549A (en) Lubricant of lubricating oil basis for lubricating rotating and/or sliding surfaces and process for preparing same
US6245721B1 (en) Lubrication additive composition
CN112175698B (en) Low-ash-content high-compatibility energy-saving lubricating oil
CN1042743C (en) Lubricating additive compsn.
Coffin et al. The application of synthetic fluids to automotive lubricant development: trends today and tomorrow
Harperscheid Lubricants for internal combustion engines
CN1042644C (en) Additive compsn.
CN1043360C (en) Lubricating oil compsn.
CN1120225C (en) Special lubricating oil for IC engine of car
Bardy et al. Motor Oil Thickening-A CLR Engine Test Procedure Which Correlates with Field Service

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
ASS Succession or assignment of patent right

Owner name: BEIHAI YUNENG PETROCHEMICAL CO., LTD.

Free format text: FORMER OWNER: DAQING YUNENG PETROCHEMICAL CO., LTD.

Effective date: 20100316

C41 Transfer of patent application or patent right or utility model
COR Change of bibliographic data

Free format text: CORRECT: ADDRESS; FROM: 102209 NO.33, XISHAGEZHUANG, BEIQIJIA TOWN, CHANGPING DISTRICT, BEIJING CITY TO: 536000 COMPREHENSIVE OFFICE BUILDING, HONG KONG ROAD INDUSTRIAL PARK, BEIHAI CITY, GUANGXI PROVINCE

TR01 Transfer of patent right

Effective date of registration: 20100316

Address after: 536000 comprehensive office building, Hongkong Road Industrial Park, Guangxi, Beihai

Patentee after: North Haiyu energy Petrochemical Co. Ltd.

Address before: 102209, 33, Xisha, Beiqijia Town, Beijing, Changping District

Patentee before: Yuneng Petro-Chemical Co., Ltd, Daqing

ASS Succession or assignment of patent right

Owner name: BEIHAI YUNENG TECHNOLOGY DEVELOPMENT CO., LTD.

Free format text: FORMER OWNER: BEIHAI YUNENG PETROCHEMICAL CO., LTD.

Effective date: 20100520

C41 Transfer of patent application or patent right or utility model
TR01 Transfer of patent right

Effective date of registration: 20100520

Address after: 536000 comprehensive office building, Hongkong Road Industrial Park, Guangxi, Beihai

Patentee after: Beihai Unipower Science & Technology Development Co., Ltd.

Address before: 536000 comprehensive office building, Hongkong Road Industrial Park, Guangxi, Beihai

Patentee before: North Haiyu energy Petrochemical Co. Ltd.

PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of invention: Lubricating oil additive based on cermet lubrication mechanism

Effective date of registration: 20101220

Granted publication date: 20031210

Pledgee: Societe Generale Bank, Limited by Share Ltd, Nanning branch

Pledgor: Beihai Unipower Science & Technology Development Co., Ltd.

Registration number: 2010990001011

C56 Change in the name or address of the patentee

Owner name: GUANGXI YUNENG LUBRICATING OIL CO., LTD.

Free format text: FORMER NAME: BEIHAI UNIPOWER SCIENCE + TECHNOLOGY DEVELOPMENT CO., LTD.

CP03 Change of name, title or address

Address after: 536000 No. 38, Taiwan Road, Beihai Industrial Park, the Guangxi Zhuang Autonomous Region, Beihai

Patentee after: Guangxi Yu Neng lubricating oil Co., Ltd

Address before: 536000 the Guangxi Zhuang Autonomous Region Beihai Hongkong Road Industrial Park Comprehensive Office Building

Patentee before: Beihai Unipower Science & Technology Development Co., Ltd.

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: 20031210

Termination date: 20180929