CN105328182B - A kind of preparation method of nucleocapsid structure silver copper-clad nano-powder material - Google Patents
A kind of preparation method of nucleocapsid structure silver copper-clad nano-powder material Download PDFInfo
- Publication number
- CN105328182B CN105328182B CN201510634100.4A CN201510634100A CN105328182B CN 105328182 B CN105328182 B CN 105328182B CN 201510634100 A CN201510634100 A CN 201510634100A CN 105328182 B CN105328182 B CN 105328182B
- Authority
- CN
- China
- Prior art keywords
- powder
- silver
- copper
- argon
- nucleocapsid structure
- 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.)
- Active
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/05—Metallic powder characterised by the size or surface area of the particles
- B22F1/054—Nanosized particles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/14—Treatment of metallic powder
- B22F1/145—Chemical treatment, e.g. passivation or decarburisation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/17—Metallic particles coated with metal
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/12—Making metallic powder or suspensions thereof using physical processes starting from gaseous material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/14—Making metallic powder or suspensions thereof using physical processes using electric discharge
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
- B22F2998/10—Processes characterised by the sequence of their steps
Abstract
The invention discloses a kind of preparation method of nucleocapsid structure silver copper-clad nano-powder material, belongs to bimetallic Core-shell structure material field.The method is will to be pressed into block after the copper powder of different proportion and argentum powder mix homogeneously, as the anode material of plasma arc furnace, using tungsten metal or graphite as cathode material, argon and hydrogen are quoted as working gas, under certain electric current, the starting the arc between anode and negative electrode, is passivated after continuing for some time, and obtains final product the silver-colored copper-clad nano-powder with nucleocapsid structure.Preparation method process is simple provided by the present invention, flow process are short, it is easy to control, and are adapted to large-scale industrial production and environmentally safe, environmental protection.
Description
Technical field
The invention belongs to bimetallic nano Core-shell structure material field, and in particular to a kind of silver-colored copper-clad with nucleocapsid structure
The preparation method of nano powder.
Background technology
Silver is the best metal of electric conductivity, but also has the advantages that good non-oxidizability and stable performance so as to
As conductive filler, can be made into electrocondution slurry and be widely used in electronic devices and components.But its price is costly, and exists
Easily the shortcoming of migration, is allowed to be difficult to industrially carry out large-scale commercial Application.And the electric conductivity of copper is only second to silver, and cost
It is relatively low, but copper easily aoxidizes the oxide for generating insulation, causes conductivity to be remarkably decreased, it is difficult to meet high-end electronic industry
Require.Last layer silver is equably plated in Copper Powder Surface, the oxidation of copper can not only be prevented and the silver-colored shortcoming for migrating is overcome, moreover it is possible to dropped
Low cost.The silver-coated copper powder of this nucleocapsid structure receives the extensive concern of researcher in recent years.
The preparation method of nucleocapsid structure silver-coated copper powder is a lot, mainly has chemical method, including chemical replacement method and electronation
Method.Although chemical method cost is relatively low, great majority are required for first Copper Powder Surface being carried out cleaning, activate, are sensitized etc. is processed, and
Need repeatedly washing, filter, the overlay coating of made silver-coated copper powder is uneven；Although and requirement of the plasma method to equipment compared with
Height, but the product of even particle size distribution can be prepared using the method, it is capable of achieving industrial mass production.
103128308 B of Chinese patent CN disclose the preparation method that a kind of chemical method prepares nucleocapsid structure silver copper-clad：First
The cuprammonium aqueous solution prepared by copper sulfate is added in the aqueous solution containing reducing agent and dispersant and obtains copper powder suspension, so
Afterwards water solublity organic sequestering agent is added in the suspension containing copper powder, then the silver ammino solution prepared by silver nitrate is added to into cupric
In powder suspension, make silver ion that displacement reaction occur with copper powder, a certain amount of weak reductant is added after the completion of reaction to be replaced will
Residual silver ion reduction Cheng Yin, obtain particle diameter in 0.8～5 μ m Jing after filtration, washing, dried and be evenly coated,
The silver-coated copper powder of closely knit, good conductivity.But the method technique is loaded down with trivial details, need to wash through multiple times of filtration, and used in preparation process
Organic sequestering agent, has certain pollution to environment.
102990061 B of Chinese patent CN disclose a kind of preparation method of compact silver-coated copper powder：First with 3%
～10% dilute sulfuric acid washes the oxide layer of Copper Powder Surface, then washes away acid solution, and copper powder is added in EDETATE SODIUM saline solution；
Silver ammino solution, 5～60min of reaction is added to obtain silver-plated copper powder under stirring state；By silver-plated copper powder and grinding aid and zirconium oxide bead
Mixing, stirring；Then planetary ball mill is carried out again；Gained ball-milled mixtures are sieved with 100～500 eye mesh screens, and collection is silver-colored after sieving
Copper-clad powder, washing are collected the suspension for washing down and staticly settle 3～6h, remove supernatant, by lower floor's mixed liquor centrifugation,
Gained precipitation ethanol wash 3～5 times, then at 40～70 DEG C of temperature, vacuum drying or forced air drying obtain compact
Silver-coated copper powder.The method technique is loaded down with trivial details, not only wants the oxide layer of pickling Copper Powder Surface, is also performed to the operations such as ball milling, and time-consuming
It is long, it is unfavorable for producing in enormous quantities.
The content of the invention
The purpose of the present invention is to overcome the deficiencies in the prior art, there is provided a kind of easy, repeatability with low cost, simple to operate
The preparation method of good silver-colored copper-clad nano-powder.
The present invention ultimate principle be：The technology of preparing of plasma is produced using arc discharge, is made using arc discharge
Anode metal is heated rapidly, melts, evaporate and form metal vapors；The fusing point of copper is 1083 DEG C, silver point is 960.7 DEG C,
In temperature-fall period, the higher copper steam of fusing point is first condensed into nano copper particle, and the relatively low silver-colored steam of fusing point is easy to absorption in copper
Particle surface, when temperature is down to below silver point, is formed the silver-colored copper-clad nano-powder of nucleocapsid structure.
Based on principles above, the present invention be by anodic arc discharging plasma method, by following technical scheme come
Realize, comprise the following steps that：
(1) copper powder and argentum powder that purity is 99.9% (mass percent) are weighed, after mix homogeneously, block work is pressed into
For the anode material of plasma arc furnace.Mass percent in the anode material shared by silver is 10～25%.
(2) using tungsten metal or graphite as cathode material, using argon and hydrogen as working gas, body shared by argon
Product ratio is 70%～100%.During experiment, first lead to cooling water, and by operating room's evacuation；Then it is re-filled with working gas argon
Gas, is finally filled with hydrogen, and connects DC source, and operating current is 60～100A, and electric arc is played between anode and negative electrode, and arc light is put
In electric process, adjustment work electric current is kept relative stability with voltage, and the working time is 0.5～1h；Complete required arc discharge process
After close power supply；Finally extract operating room's gas out, inject argon Passivation Treatment, passivation time at least 1h.After end, cover in opening
The nano powder of plasma-arc furnace side wall and upper cover part position is collected, nuclear shell structure nano silver-coated copper powder of the present invention is obtained final product.
As a kind of optimization, in step (1), the mass percent in the anode material shared by silver is 15%；In step
Suddenly in (2), using graphite as cathode material, it is 70% that in the working gas, argon accounts for volume ratio, and the operating current is
60A, the working time are 1h, and the passivation time is 2h.
Compared with prior art, the present invention has following technique effect：
1st, the method prepare nuclear shell structure nano silver-coated copper powder body material purity is high, simple to operate, preparation time is short, fit
Close large-scale industrial production；
2nd, in the chemical reduction method commonly used in liquid phase method and displacement method preparation process, technological process is more, and subsequent product needs many
Secondary washing, filtration etc., it is reacted remaining easily to environment generation pollution, it is made pellet easily to reunite, instant invention overcomes this
A little shortcomings, and repeatability, stability are significantly better than prior art；
3rd, preparation method provided by the present invention, process is simple, it is easy to control, and environmentally safe, environmental protection；
4th, the silver-coated copper powder with composite construction prepared of the present invention not only maintain original metallic copper core physics and
Chemical property, while with the excellent metallic character of silver coating, not only having improve the non-oxidizability and heat stability of copper but also can save
The consumption of silver is saved, thus is with a wide range of applications.
Description of the drawings
Fig. 1 is the schematic device that the present invention prepares nuclear shell structure nano silver-coated copper powder body.
Wherein：Cover on 1-；2- negative electrodes；3- valves；4- targets；5- observation windows；6- baffle plates；7- copper anodes；8- chucks；
9- graphite crucibles；10- DC pulse currents；A- cooling waters；B- argon；C- hydrogen.
Fig. 2 is the XRD figure piece of silver-colored copper-clad nano powder obtained in embodiment 2.
Fig. 3 is the SEM pictures of silver-colored copper-clad nano powder obtained in embodiment 2.
Specific embodiment
Below in conjunction with specific embodiment in detail the present invention is described in detail, but the present invention is not limited to following embodiments.
Embodiment 1
Lid 1 on device shown in Fig. 1 is opened, will be made by the block being pressed into after 16g copper powders and 4g argentum powder mix homogeneously
For the anode material of plasma arc furnace, it is placed in the graphite crucible 9 of schematic device 1；Using tungsten metal as cathode material,
The distance of 30mm is kept between tungsten electrode and anode.Lid 1 on lid mounted device, is first led to cooling water a, and is taken out operating room by valve 3
Vacuum, is successively passed through argon b；DC source 10 is then turn on, operating current is 100A, adjustment work electricity during arc discharge
Stream is kept relative stability with voltage, and power supply is closed after 0.5h, extracts working gas out, and injection argon is passivated, and passivation time is
2h, in opening, lid collects the nano powder of plasma-arc furnace side wall and upper cover part position, the particle diameter with nucleocapsid structure is obtained and is about
The silver-colored copper-clad nano powder of 80nm.
Embodiment 2
Lid 1 on device shown in Fig. 1 is opened, will be made by the block being pressed into after 17g copper powders and 3g argentum powder mix homogeneously
For the anode material of plasma arc furnace, it is placed in the graphite crucible 9 of schematic device 1；Using graphite as cathode material, stone
The distance of 30mm is kept between electrode ink and anode.Lid 1 on lid mounted device, is first led to cooling water a, and is taken out operating room by valve 3
Vacuum, is successively passed through argon b and hydrogen c, and volume ratio shared by argon is 70%；It is then turn on DC source 10, operating current
For 60A, during arc discharge, adjustment work electric current is kept relative stability with voltage, and power supply is closed after 1h, extracts working gas out,
Injection argon is passivated, and passivation time is 2h, and in opening, lid collects the nano powder of plasma-arc furnace side wall and upper cover part position,
Silver-colored copper-clad nano powder of the particle diameter with nucleocapsid structure for 55nm is obtained.
Embodiment 3
Lid 1 on device shown in Fig. 1 is opened, will be made by the block being pressed into after 18g copper powders and 2g argentum powder mix homogeneously
For the anode material of plasma arc furnace, it is placed in the graphite crucible 9 of schematic device 1；Using tungsten metal as cathode material,
The distance of 30mm is kept between tungsten electrode and anode.Lid 1 on lid mounted device, is first led to cooling water a, and is taken out operating room by valve 3
Vacuum, is successively passed through argon b and hydrogen c, and volume ratio shared by argon is 50%；It is then turn on DC source 10, operating current
For 80A, during arc discharge, adjustment work electric current is kept relative stability with voltage, and power supply is closed after 0.5h, extracts work gas out
Body, injection argon are passivated, and passivation time is 3h, and in opening, lid collects the nanometer of plasma-arc furnace side wall and upper cover part position
Powder, is obtained silver-colored copper-clad nano powder of the mean diameter with nucleocapsid structure for 65nm.
Embodiment 4
Lid 1 on device shown in Fig. 1 is opened, will be made by the block being pressed into after 15g copper powders and 5g argentum powder mix homogeneously
For the anode material of plasma arc furnace, it is placed in the graphite crucible 9 of schematic device 1；Using tungsten metal as cathode material.
The distance of 30mm is kept between tungsten electrode and anode.Lid 1 on lid mounted device, is first led to cooling water a, and is taken out operating room by valve 3
Vacuum, is successively passed through argon b and hydrogen c, and volume ratio shared by argon is 80%；It is then turn on DC source 10, operating current
For 100A, during arc discharge, adjustment work electric current is kept relative stability with voltage, and power supply is closed after 0.5h, extracts work gas out
Body, injection argon are passivated, and passivation time is 2h, and in opening, lid collects the nanometer of plasma-arc furnace side wall and upper cover part position
Powder, is obtained silver-colored copper-clad nano powder of the particle diameter with nucleocapsid structure for 85nm.
Claims (2)
1. the preparation method of a kind of nucleocapsid structure silver copper-clad nano-powder material, it is characterised in that：Methods described is successively by as follows
Step is carried out：
(1) copper powder and argentum powder that mass percent purity is 99.9% are weighed, be pressed into after mix homogeneously block as wait from
The anode material of sub- electric arc furnace；Mass percent in the anode material shared by silver is 10～25%；
(2) using tungsten metal or graphite as plasma arc furnace cathode material, using argon and hydrogen as working gas,
Volume ratio shared by argon is 50%～100%；First lead to cooling water, and by operating room's evacuation, high-purity argon gas are employed many times net
Change and rinse；Argon and hydrogen are quoted as working gas, DC source is connected, operating current is 60～100A, anode and negative electrode
Between play electric arc, during arc discharge, adjustment work electric current is kept relative stability with voltage, keep 0.5～1h after close electricity
Source；Working gas is extracted out finally, injection argon is passivated process, and passivation time at least 1h, after terminating, covers collection etc. in opening
Ionic arc furnace sidewall and the nano powder of upper cover part position, obtain final product the silver-colored copper-clad nano powder with nucleocapsid structure.
2. the preparation method of a kind of nucleocapsid structure silver copper-clad nano-powder material as claimed in claim 1, it is characterised in that：
In step (1), the mass percent in the anode material shared by silver is 15%；In step (2), using graphite as negative electrode
Material, it is 70% that in the working gas, argon accounts for volume ratio, and the operating current is 60A, and the working time is 1h, described
Passivation time is 2h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510634100.4A CN105328182B (en) | 2015-09-29 | 2015-09-29 | A kind of preparation method of nucleocapsid structure silver copper-clad nano-powder material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510634100.4A CN105328182B (en) | 2015-09-29 | 2015-09-29 | A kind of preparation method of nucleocapsid structure silver copper-clad nano-powder material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105328182A CN105328182A (en) | 2016-02-17 |
| CN105328182B true CN105328182B (en) | 2017-04-05 |
Family
ID=55279058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510634100.4A Active CN105328182B (en) | 2015-09-29 | 2015-09-29 | A kind of preparation method of nucleocapsid structure silver copper-clad nano-powder material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105328182B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107863176A (en) * | 2017-11-27 | 2018-03-30 | 中国有色桂林矿产地质研究院有限公司 | A kind of low-shrinkage Zinc-oxide piezoresistor electrode silver plasm and preparation method |
| CN107895600A (en) * | 2017-11-27 | 2018-04-10 | 中国有色桂林矿产地质研究院有限公司 | A kind of lighning proof type Zinc-oxide piezoresistor electrode silver plasm and preparation method |
| CN109128568B (en) * | 2018-08-09 | 2021-09-17 | 重庆群崴电子材料有限公司 | Preparation method of nano core-shell structure soldering paste |
| CN110405221A (en) * | 2019-08-19 | 2019-11-05 | 昆明理工大学 | A kind of method that DC arc plasma prepares refractory metal nano powder |
| CN112387979A (en) * | 2020-10-14 | 2021-02-23 | 宁波中乌新材料产业技术研究院有限公司 | Preparation method of silver nanoparticles |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101362200A (en) * | 2008-09-20 | 2009-02-11 | 大连理工大学 | Synthesis method of metallic oxide coated dissimilar metal 'core/shell'nano-particles |
| CN102211185A (en) * | 2011-05-17 | 2011-10-12 | 陈钢强 | Silver coated copper alloy powder |
| CN103008674A (en) * | 2013-01-08 | 2013-04-03 | 安徽工业大学 | Nickel/copper oxide composite nanometer wave absorbing material and preparation method thereof |
| CN103192069A (en) * | 2013-04-15 | 2013-07-10 | 安徽工业大学 | Rare earth-copper-aluminum nano particle for low-temperature magnetic refrigeration and preparing method of rare earth-copper-aluminum nano particle |
| CN104261458A (en) * | 2014-10-20 | 2015-01-07 | 安徽工业大学 | Copper sulfide nanometer powdered material with aluminum sulphide casing and preparation method of nanometer powdered material |
| CN104386765A (en) * | 2014-10-20 | 2015-03-04 | 安徽工业大学 | Ferrous sulfide nanometer powdered material with aluminium sulfide casing and preparation method thereof |
-
2015
- 2015-09-29 CN CN201510634100.4A patent/CN105328182B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101362200A (en) * | 2008-09-20 | 2009-02-11 | 大连理工大学 | Synthesis method of metallic oxide coated dissimilar metal 'core/shell'nano-particles |
| CN102211185A (en) * | 2011-05-17 | 2011-10-12 | 陈钢强 | Silver coated copper alloy powder |
| CN103008674A (en) * | 2013-01-08 | 2013-04-03 | 安徽工业大学 | Nickel/copper oxide composite nanometer wave absorbing material and preparation method thereof |
| CN103192069A (en) * | 2013-04-15 | 2013-07-10 | 安徽工业大学 | Rare earth-copper-aluminum nano particle for low-temperature magnetic refrigeration and preparing method of rare earth-copper-aluminum nano particle |
| CN104261458A (en) * | 2014-10-20 | 2015-01-07 | 安徽工业大学 | Copper sulfide nanometer powdered material with aluminum sulphide casing and preparation method of nanometer powdered material |
| CN104386765A (en) * | 2014-10-20 | 2015-03-04 | 安徽工业大学 | Ferrous sulfide nanometer powdered material with aluminium sulfide casing and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105328182A (en) | 2016-02-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105328182B (en) | A kind of preparation method of nucleocapsid structure silver copper-clad nano-powder material | |
| CN103658637B (en) | A kind of method of electrolytic preparation dendroid fine copper powder | |
| CN110350181A (en) | A kind of preparation method of lithium ion cell nano porous silicon negative electrode material | |
| CN108328619A (en) | A kind of method that industrial silicon hydrometallurgy removes boron | |
| CN102367519A (en) | Efficient recovering method for waste indium tin oxide (ITO) targets | |
| CN107460503A (en) | The method that micro-nano copper powder is reclaimed from waste printed circuit board | |
| CN105018971B (en) | A kind of method by the dendritic α Fe sills of iron standby functional micro-nano structure | |
| CN104961137B (en) | A kind of preparation method of nano alkaline-earth metal boride | |
| CN105127437B (en) | A kind of preparation method of nucleocapsid structure silver iron clad nano-powder material | |
| CN108642522A (en) | A kind of recovery method of the waste material containing indium | |
| CN107868964A (en) | The preparation method of alloy powder | |
| CN105127414B (en) | A kind of preparation method of core shell structure silver nickel coat nano-powder material | |
| CN105887118B (en) | A kind of method that Selective Separation from materials containing tellurium reclaims tellurium | |
| CN101391304A (en) | Preparation method of porous aluminum powder with high specific surface area | |
| CN104178629B (en) | The method that valuable metal is reclaimed from many metal dusts of waste electronic wiring board | |
| CN102839394B (en) | Method for rapidly preparing tree-like nano-iron with multi-level structure | |
| CN108910965B (en) | Method for preparing ternary hydroxide precursor | |
| CN108360025B (en) | A kind of method that aqueous solution electrolysis solid metallic sulfide prepares metal | |
| CN107217279B (en) | A kind of method that electrolysis prepares metal nanoparticle | |
| CN109234767B (en) | Preparation method of superfine spherical copper powder | |
| WO2019056837A1 (en) | Clean extraction method for metal silver | |
| CN104928724B (en) | A kind of method of the electrolytic preparation dendroid fine copper powder in ethanedioic acid | |
| CN107699694B (en) | A method of processing containing copper chloride acidity etching waste liquid and obtained iron negative electrode material | |
| CN105170992B (en) | A kind of normal-pressure production method of bigger serface high-purity superfine nickel powder | |
| CN104190947A (en) | Molybdenum superfine powder and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210430 Address after: No.33, Lane 159, Taiye Road, Fengxian District, Shanghai, 201400 Patentee after: Shanghai Yuanbao Industrial Design Co.,Ltd. Address before: 243002 No. 59 East Lake Road, Anhui, Ma'anshan Patentee before: ANHUI University OF TECHNOLOGY |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20221221 Address after: No. 1, North of Kaiyuan West Avenue, Leling, Dezhou, Shandong Patentee after: Shandong Jiatu Door&Window Co.,Ltd. Address before: No.33, Lane 159, Taiye Road, Fengxian District, Shanghai, 201400 Patentee before: Shanghai Yuanbao Industrial Design Co.,Ltd. |
|
| TR01 | Transfer of patent right |