CN106548829A - The preparation method of conductive paste - Google Patents
The preparation method of conductive paste Download PDFInfo
- Publication number
- CN106548829A CN106548829A CN201611111124.2A CN201611111124A CN106548829A CN 106548829 A CN106548829 A CN 106548829A CN 201611111124 A CN201611111124 A CN 201611111124A CN 106548829 A CN106548829 A CN 106548829A
- Authority
- CN
- China
- Prior art keywords
- conductive paste
- preparation
- stirring
- added
- weight portions
- 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
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
- H01B1/06—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of other non-metallic substances
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Cosmetics (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a kind of preparation method of conductive paste, comprises the steps：Glycerine and sodium chloride water dissolves are taken, the pH value for adjusting solution is 56；Take natural polysaccharide material to be added in the solution of step one, then heating water bath, to 90 100 DEG C, maintains the temperature to proceed stirring while stirring；Thickener is added toward step 2, is stirred to after being completely dissolved and is started cooling, be cooled to 60 70 DEG C, then insulated and stirred；Product obtained by step 3 is cooled to into room temperature and obtains final product conductive paste.In process of the present invention without poisonous and harmful substance add or produce, obtained product have excellent electric conductivity, at ambient temperature by deposit and use rear easy cleaning.
Description
Technical field
The present invention relates to electricity material field.It is more particularly related to a kind of preparation side of radio frequency cream
Method.
Background technology
Conductive paste is widely used in the connection of electronic device, and to reduce tie point contact resistance, conductive paste is because directly
Or mediate contact human body, its security is particularly important.Conductive paste can make the electrode and human body of detection electrocardiogram, electroencephalogram etc.
UNICOM is tightr, and reduces the resistance between electrode and human body, is that the detection such as electrocardiogram, electroencephalogram is necessary.
Conductive paste includes two solvents：Gel and conductive ion.At present, mainly using artificial synthesized polyphosphazene polymer
Compound is used as gel components, and can add the compositions such as some chemical reagent, preservative, essence.Artificial synthesized polyphosphazene polymer
In the refractory organicses and conductive paste building-up process of thing, the residue problem of some harmful chemical reagent can limit making for product
Use scope.
Existing conductive paste is divided into external and two kinds of the country, all there is composition.External conductive paste performance
It is excellent, but price general charged is higher, and need Cord blood；Domestic conductive paste electric conductivity is poor, irritant smell or adds
Perfuming essence, can interfere to experimenter, and clean inconvenient, have certain toxic action to human body and greasy feeling is strong using rear
It is strong.
The content of the invention
It is an object of the invention to solve conductive paste and need low-temperature preservation and poisonous and harmful substances and difficult cleaning of ask
Topic, and the advantage that at least will be described later is provided.
In order to realize these purposes of the invention and further advantage, there is provided a kind of preparation method of conductive paste, bag
Include following steps：
Step one, glycerine and sodium chloride water dissolves are taken, the pH value for adjusting solution is 5-6；
Step 2, take natural polysaccharide material and be added in the solution of step one, then while stirring heating water bath to 90-
100 DEG C, the temperature is maintained to proceed stirring；
Step 3, add thickener toward step 2, stir to after being completely dissolved and start cooling, be cooled to 60-70 DEG C, then
Insulated and stirred；
Step 4, the product obtained by step 3 is cooled to into room temperature obtains final product conductive paste.
Preferably, raw materials used mass fraction is respectively：50 parts of water, glycerine 5-10 parts, sodium chloride 10-15 parts are natural
Polysaccharide material 28-29.5 parts, thickener 0.5-2 parts.
Preferably, the thickener is carragheen, konjac glucomannan, xanthans, one or more in gelatin.
Preferably, the cooling rate in step 3 is 5 DEG C/min, and temperature retention time is 3-6min.
Preferably, it is 30-60min to continue mixing time in step 2, and mixing speed is 500-1000r/min.
Preferably, the process for dissolving in step one is also added into the sodium trimetaphosphate of 4-6 weight portions, and the pH value of solution is adjusted
After saving as 5-6, the polyanion cellulose of 1-3 weight portions, stirring and dissolving are added.
Preferably, in step 2 heating water bath to after 95-100 DEG C, the Starch with Acrylic Acid for adding 3-5 weight portions connects
Graft copolymer, is stirred；In step 3 add thickener after, then under agitation add 1-4 weight portions sodium alginate or
Potassium alginate simultaneously carries out ultrasonic disperse 5-10min, disperses insulated and stirred 5-8min in water-bath, then is lowered the temperature.
Preferably, the natural polysaccharide material be carboxymethylcellulose calcium, hyaluronic acid, the one kind or many in shitosan
Kind.
The present invention at least includes following beneficial effect：
(1) preparation process is simple of the present invention, produces without poisonous and harmful substance in the equal nonhazardous of used raw material and process
It is raw, to human body without any injury, using safety, and without any penetrating odor, obtained product have excellent electric conductivity,
Under room temperature condition can storage more than 6 months, no penetrating odor and with it is rear easy to clean the advantages of, product of the invention has
Higher-security, can be used for the fields such as medical treatment, scientific research, teaching；
(2) present invention is processed conductive under mild conditions using natural polysaccharide material as the gel components of conductive paste
Cream, using faintly acid cold-water solution natural macromolecular material, is effectively protected the structure of natural macromolecular material, can be preferably
Ionophore function is provided for product；
(3) addition that with the addition of sodium trimetaphosphate of the invention can promote the formation of conductive paste gel and improve the steady of gel
It is qualitative, and sodium trimetaphosphate is also a kind of electrolyte, can increase the electric conductivity of conductive paste；Polyanion cellulose is added to
In the gel rubber system of conductive paste, combined with thickener so that gel rubber system salt resistant character is excellent and structure is more stable, without the need for low temperature
Preservation is also less likely to occur to go bad；Starch-acrylate graft copolymer has preferable moisture retention, can guarantee that the aqueous of conducting resinl
Amount, so that electrolyte improves the electric conductivity of conducting resinl in ionized state；Sodium alginate or potassium alginate have very
The effect of strong protecting colloid, while strong to the emulsifying ability of grease, so that conductive paste is easy to cleaning, in addition sodium alginate or
The addition of person's potassium alginate is more easy to cause conductive paste to form the stronger lotion of homogeneity.
Part is embodied by the further advantage of the present invention, target and feature by description below, and part will also be by originally
The research of invention and practice and be understood by the person skilled in the art.
Specific embodiment
With reference to specific embodiment, the present invention is described in further detail, to make those skilled in the art's reference say
Bright book word can be implemented according to this.
It should be noted that experimental technique described in following embodiments, if no special instructions, is conventional method, institute
Reagent and material are stated, if no special instructions, is commercially obtained.
Embodiment 1：
A kind of preparation method of conductive paste, comprises the steps：
Step one, take 5 weight portion of glycerine and 15 weight portion water of sodium chloride, 50 weight portion dissolving, with hydrochloric acid conditioning solution
PH value is 5-6；
Step 2, take 28.5 weight portion shitosans and be added in the solution of step one, then heating water bath is extremely while stirring
95 DEG C, the temperature is maintained to continue stirring 30min, mixing speed is 1000r/min；
Step 3, add 1.5 weight portion carragheens toward step 2, stir to after being completely dissolved and start cooling, cooling speed
Spend for 5 DEG C/min, be cooled to 70 DEG C, then insulated and stirred, temperature retention time is 3min；
Step 4, the product obtained by step 3 is cooled to into room temperature obtains final product conductive paste.
Embodiment 2：
A kind of preparation method of conductive paste, comprises the steps：
Step one, the water dissolves for taking 50 weight portions of 8.5 weight portion of glycerine and 10 weight portion of sodium chloride, adjust molten with hydrochloric acid
The pH value of liquid is 5-6；
Step 2, take 29.5 weight portion carboxymethylcellulose calciums and be added in the solution of step one, then water-bath while stirring
100 DEG C are heated to, maintain the temperature to continue stirring 45min, mixing speed is 800r/min；
Step 3, add 2 weight portion konjac glucomannans toward step 2, stir to after being completely dissolved and start cooling, cooling rate
For 5 DEG C/min, 60 DEG C, then insulated and stirred are cooled to, temperature retention time is 6min；
Step 4, the product obtained by step 3 is cooled to into room temperature obtains final product conductive paste.
Embodiment 3：
A kind of preparation method of conductive paste, comprises the steps：
Step one, 10 weight portion of glycerine and the sodium chloride 11.5 weight portion water dissolves of 50 weight portions are taken, adjusted with hydrochloric acid
The pH value of solution is 5-6；
Step 2, take 28 weight portion shitosans and be added in the solution of step one, then while stirring heating water bath to 95
DEG C, maintain the temperature to continue stirring 60min, mixing speed is 500r/min；
Step 3, add 0.5 weight portion xanthans toward step 2, stir to after being completely dissolved and start cooling, cooling speed
Spend for 5 DEG C/min, be cooled to 65 DEG C, then insulated and stirred, temperature retention time is 5min；
Step 4, the product obtained by step 3 is cooled to into room temperature obtains final product conductive paste.
Embodiment 4：
A kind of preparation method of conductive paste, comprises the steps：
Step one, take 5 weight portion of glycerine, 50 weight portions of 14 weight portion of sodium chloride and 4 weight portion of sodium trimetaphosphate
Water dissolves, are 5-6 with the pH value of hydrochloric acid conditioning solution, add the polyanion cellulose of 3 weight portions, stirring and dissolving；
Step 2, take 29 weight portion hyaluronic acids and be added in the solution of step one, then heating water bath is extremely while stirring
95 DEG C, the starch-acrylate graft copolymer of 3 weight portions is added, is stirred, maintained the temperature to continue stirring 40min, stir
Speed is mixed for 800r/min；
Step 3,2 weight portion gelatin are added toward step 2, then add the sodium alginate of 3 weight portions to go forward side by side under agitation
Row ultrasonic disperse 10min, disperses insulated and stirred 8min in water-bath, starts cooling afterwards, and cooling rate is 5 DEG C/min, is dropped
Temperature is to 70 DEG C, then insulated and stirred, and temperature retention time is 5min；
Step 4, the product obtained by step 3 is cooled to into room temperature obtains final product conductive paste.
Embodiment 5：
A kind of preparation method of conductive paste, comprises the steps：
Step one, take 7 weight portion of glycerine, 50 weight portions of 13 weight portion of sodium chloride and 6 weight portion of sodium trimetaphosphate
Water dissolves, are 5-6 with the pH value of hydrochloric acid conditioning solution, add the polyanion cellulose of 1 weight portion, stirring and dissolving；
Step 2, take 28.5 weight portion shitosans and be added in the solution of step one, then heating water bath is extremely while stirring
100 DEG C, the starch-acrylate graft copolymer of 5 weight portions is added, is stirred, maintain the temperature to continue stirring 30min,
Mixing speed is 1000r/min；
Step 3,1.5 weight portion gelatin are added toward step 2, then add the sodium alginate of 4 weight portions under agitation simultaneously
Ultrasonic disperse 7min is carried out, disperses insulated and stirred 5min in water-bath, start cooling afterwards, cooling rate is 5 DEG C/min, is dropped
Temperature is to 60 DEG C, then insulated and stirred, and temperature retention time is 5min；
Step 4, the product obtained by step 3 is cooled to into room temperature obtains final product conductive paste.
Embodiment 6：
A kind of preparation method of conductive paste, comprises the steps：
Step one, take 7 weight portion of glycerine, 50 weight portions of 12 weight portion of sodium chloride and 5 weight portion of sodium trimetaphosphate
Water dissolves, are 5-6 with the pH value of hydrochloric acid conditioning solution, add the polyanion cellulose of 2 weight portions, stirring and dissolving；
Step 2, take 29.5 weight portion hyaluronic acids and be added in the solution of step one, then heating water bath while stirring
To 95 DEG C, the starch-acrylate graft copolymer of 4 weight portions is added, is stirred, maintain the temperature to continue stirring 60min,
Mixing speed is 600r/min；
Step 3,1.5 weight portion xanthans, then the potassium alginate for adding 3 weight portions under agitation are added toward step 2
And carry out ultrasonic disperse 10min, and to disperse insulated and stirred 8min in water-bath, start cooling afterwards, cooling rate is 5 DEG C/
Min, is cooled to 65 DEG C, then insulated and stirred, and temperature retention time is 4min；
Step 4, the product obtained by step 3 is cooled to into room temperature obtains final product conductive paste.
In order to illustrate beneficial effects of the present invention, the conductive paste of embodiment 1-6 is carried out into impedance detection, assay method is：
Conductive paste is coated on electrode, electrode is connected to head, reconnects impedance measuring instrument, read primary conductive glue at interval of half an hour
Impedance readings, obtain the data in table 1：
Table 1
In below 5K Ω, the impedance readings of conductive paste then illustrate that the electric conductivity of conductive paste is excellent.Lead as can be seen from Table 1
The impedance initial reading of electric cream is respectively less than 5K Ω, and with the continuous propulsion of test, the impedance of conductive paste is gradually reduced and finally becomes
Closely with balance, finally balance after impedance no more than 2K Ω, thus, it can be known that the conductive paste electric conductivity of the present invention is excellent.
Simultaneously to the conductive paste of embodiment 1-6, whether easy cleaning performance is measured, respectively the conductive paste of Example 1-6
10 grams, it is applied on human body skin, then is rinsed, as a result finds that the conductive paste of embodiment 1-3 needs to add 0.05 gram or so
Cleaning agent can just be rinsed well, and the conductive paste of embodiment 4-6 is rinsed well by need not adding any cleaning agent.
The effective time of its preservation at room temperature by the preservation at room temperature of the conductive paste of embodiment 1-6, is determined, is as a result invented
Under the conductive paste room temperature of embodiment 1-3, effective preservation time is 6-12 month, effective preservation under the conductive paste room temperature of embodiment 4-6
Time is 11-15 month.
The conductive paste of embodiment 1-6 is carried out into smell test, the conductive paste of embodiment 1-6 is found without any smell, because
This will not produce penetrating odor in use and then user is interfered.
Although embodiment of the present invention is disclosed as above, which is not restricted to listed by specification and embodiment
With, it can be applied to various suitable the field of the invention completely, for those skilled in the art, can be easily
Other modification is realized, therefore under the universal limited without departing substantially from claim and equivalency range, the present invention is not limited
In specific details and shown here as the embodiment with description.
Claims (8)
1. a kind of preparation method of conductive paste, it is characterised in that comprise the steps：
Step one, glycerine and sodium chloride water dissolves are taken, the pH value for adjusting solution is 5-6；
Step 2, take natural polysaccharide material and be added in the solution of step one, then while stirring heating water bath to 90-100 DEG C,
The temperature is maintained to proceed stirring；
Step 3, add thickener toward step 2, stir to after being completely dissolved and start cooling, be cooled to 60-70 DEG C, then be incubated
Stirring；
Step 4, the product obtained by step 3 is cooled to into room temperature obtains final product conductive paste.
2. the preparation method of conductive paste as claimed in claim 1, it is characterised in that raw materials used mass fraction is respectively：Water
50 parts, glycerine 5-10 parts, sodium chloride 10-15 parts, natural polysaccharide 28-29.5 material parts, thickener 0.5-2 parts.
3. the preparation method of conductive paste as claimed in claim 1, it is characterised in that the thickener be carragheen, konjac glucomannan,
One or more in xanthans, gelatin.
4. the preparation method of conductive paste as claimed in claim 1, it is characterised in that the cooling rate in step 3 is 5 DEG C/
Min, temperature retention time are 3-6min.
5. the preparation method of conductive paste as claimed in claim 1, it is characterised in that it is 30- to continue mixing time in step 2
60min, mixing speed are 500-1000r/min.
6. the preparation method of conductive paste as claimed in claim 1, it is characterised in that the process dissolved in step one is also added into
The sodium trimetaphosphate of 4-6 weight portions, after the pH value of solution is adjusted to 5-6, adds the polyanion cellulose of 1-3 weight portions,
Stirring and dissolving.
7. the preparation method of conductive paste as claimed in claim 1, it is characterised in that heating water bath is to 95-100 DEG C in step 2
Afterwards, the starch-acrylate graft copolymer of 3-5 weight portions is added, is stirred；After thickener is added in step 3, then
The lower sodium alginate or potassium alginate for adding 1-4 weight portions of stirring simultaneously carries out ultrasonic disperse 5-10min, disperses in water-bath
Insulated and stirred 5-8min, then lowered the temperature.
8. the preparation method of conductive paste as claimed in claim 1, it is characterised in that the natural polysaccharide material is that carboxymethyl is fine
One or more in dimension element, hyaluronic acid, shitosan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611111124.2A CN106548829B (en) | 2016-12-06 | 2016-12-06 | The preparation method of conductive paste |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611111124.2A CN106548829B (en) | 2016-12-06 | 2016-12-06 | The preparation method of conductive paste |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106548829A true CN106548829A (en) | 2017-03-29 |
| CN106548829B CN106548829B (en) | 2018-08-14 |
Family
ID=58396880
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611111124.2A Active CN106548829B (en) | 2016-12-06 | 2016-12-06 | The preparation method of conductive paste |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106548829B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109701062A (en) * | 2019-01-21 | 2019-05-03 | 东华理工大学 | Antistatic solid aromatherapy and Xelminator including the antistatic solid aromatherapy |
| CN110655663A (en) * | 2019-10-29 | 2020-01-07 | 索思（苏州）医疗科技有限公司 | Medical conductive gel and preparation method thereof |
| CN110746617A (en) * | 2019-10-29 | 2020-02-04 | 索思（苏州）医疗科技有限公司 | Medical conductive gel and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120104330A1 (en) * | 2010-11-02 | 2012-05-03 | Samsung Electronics Co., Ltd. | Metal ink composition, method of forming a conductive metal film using the same, and conductive metal film using the same |
| CN102479566A (en) * | 2010-11-22 | 2012-05-30 | 侯小兵 | Electroencephalogram conductive adhesive |
| CN103550795A (en) * | 2013-10-24 | 2014-02-05 | 苏州格林泰克科技有限公司 | Electrode abrading and conducting adhesive and preparation method thereof |
| CN105153359A (en) * | 2015-08-25 | 2015-12-16 | 东莞市万康医疗器械有限公司 | Conductive hydrogel, conductive hydrogel coil and their preparation methods |
-
2016
- 2016-12-06 CN CN201611111124.2A patent/CN106548829B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120104330A1 (en) * | 2010-11-02 | 2012-05-03 | Samsung Electronics Co., Ltd. | Metal ink composition, method of forming a conductive metal film using the same, and conductive metal film using the same |
| CN102479566A (en) * | 2010-11-22 | 2012-05-30 | 侯小兵 | Electroencephalogram conductive adhesive |
| CN103550795A (en) * | 2013-10-24 | 2014-02-05 | 苏州格林泰克科技有限公司 | Electrode abrading and conducting adhesive and preparation method thereof |
| CN105153359A (en) * | 2015-08-25 | 2015-12-16 | 东莞市万康医疗器械有限公司 | Conductive hydrogel, conductive hydrogel coil and their preparation methods |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109701062A (en) * | 2019-01-21 | 2019-05-03 | 东华理工大学 | Antistatic solid aromatherapy and Xelminator including the antistatic solid aromatherapy |
| CN109701062B (en) * | 2019-01-21 | 2020-12-11 | 东华理工大学 | Antistatic solid champignon and static eliminator comprising same |
| CN110655663A (en) * | 2019-10-29 | 2020-01-07 | 索思（苏州）医疗科技有限公司 | Medical conductive gel and preparation method thereof |
| CN110746617A (en) * | 2019-10-29 | 2020-02-04 | 索思（苏州）医疗科技有限公司 | Medical conductive gel and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106548829B (en) | 2018-08-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106176286B (en) | Hyaluronic acid skin nursing film and preparation method and application | |
| CN106548829B (en) | The preparation method of conductive paste | |
| US4318746A (en) | Highly stable gel, its use and manufacture | |
| CN109908371A (en) | A kind of conductive paste and preparation method thereof | |
| CN102824308A (en) | Chitosan antibacterial filming sprayer and preparation method | |
| JP2002512087A (en) | Solid borate-diol reaction products for wounds | |
| CN102972774B (en) | Health-care fat substitute, preparation method and application thereof | |
| WO2021082186A1 (en) | Medical conductive gel and preparation method therefor | |
| CN103637978B (en) | Stable gel containing bromelain | |
| WO2020006005A9 (en) | Methods, compositions and devices related to seaweed masks | |
| CN109260481A (en) | Medical conductive paste and preparation method thereof | |
| KR101419271B1 (en) | Hydro-gel pack manufacturing method and thereof hydro-gel packs | |
| CN106531284A (en) | Conductive paste and preparation method thereof | |
| JP3321161B2 (en) | Polyose / fatty acid complex product having high fatty acid content, use as emulsifier or humectant and emulsifying or moisturizing composition containing the same | |
| CN105037820A (en) | Chitosan low-temperature hydrogel and preparation method thereof | |
| CN112156193B (en) | Medical conductive hyaluronic acid gel and preparation method and application thereof | |
| CN108904874A (en) | With membrane-like medical gel, manufacturing method and its application for promoting the effect of surface of a wound wet union | |
| CN113827501B (en) | Hyaluronic acid hydrogel mask with skin repair function and preparation method thereof | |
| KR101178368B1 (en) | Rubber Mask Powder Composition Containing Capsaicin | |
| WO1997017944A1 (en) | Cosmetic formulations containing balanced mixtures of natural-origin anionic polymers and process for topical application of same | |
| CN107759711A (en) | Epoxy chitosan quaternary ammonium salt and preparation method thereof | |
| JP2005179253A (en) | Gel-shaped sheet and method for producing the same | |
| CN106267172A (en) | Composition for preventing scars and preparation method and application thereof | |
| CN107137242A (en) | A kind of skin care compositions and methods | |
| CN109280129A (en) | A kind of injection aquagel polymer and preparation method thereof based on salt response under physiological condition |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220322 Address after: 300450 room 1-308, building 1, No. 1, Haitai Huake Third Road, Huayuan Industrial Zone, high tech Zone, Binhai New Area, Tianjin Patentee after: TIANJIN YINGHAO TECHNOLOGY Co.,Ltd. Address before: 530031 No. 21 Jinkai Road, Nanning Economic and Technological Development Zone, Guangxi Zhuang Autonomous Region Patentee before: Lu Lujiao |
|
| TR01 | Transfer of patent right |