CN106883669A - A kind of paint removing composition of environment-friendly high-efficiency - Google Patents
A kind of paint removing composition of environment-friendly high-efficiency Download PDFInfo
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- CN106883669A CN106883669A CN201710133645.6A CN201710133645A CN106883669A CN 106883669 A CN106883669 A CN 106883669A CN 201710133645 A CN201710133645 A CN 201710133645A CN 106883669 A CN106883669 A CN 106883669A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D9/00—Chemical paint or ink removers
- C09D9/04—Chemical paint or ink removers with surface-active agents
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D9/00—Chemical paint or ink removers
- C09D9/005—Chemical paint or ink removers containing organic solvents
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- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
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- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Paints Or Removers (AREA)
Abstract
The applicant provides a kind of paint removing composition of environment-friendly high-efficiency, is made up of the raw material of following parts by weight：Dibasic ester：30~45 parts；Dipropylene glycol methyl ether：5~15 parts；Phenmethylol：5~8 parts；Water：15~25 parts；BTA：0.5~2 part；Formic acid：1~5 part；Boric acid：1~5 part；Ethanol：8~15 parts；NP‑10：0.5~1.5 part；Sodium gluconate：2~6 parts；Poly-epoxy succinic acid：0.01~1 part.The present invention not only environmental protection, nonflammable explosive, paint removal efficiency is high, have a wide range of application, safety non-toxic, and have the multi-functionals such as depainting, cleaning, antirust concurrently, it is the high product of a cost performance, can significantly reduces the labour intensity of depainting operation, and significantly reduce depainting cost.
Description
Technical field
The present invention relates to paint stripper technical field, more particularly, to a kind of water-soluble high-efficient depainting combination of safety and environmental protection
Thing.
Background technology
Paint film is typically thermoplastic resin and room temperature crosslinking curing resin, such as alkyd resin, nitrate paint, epoxy resin, poly-
Carbamate paint, organosilicon epoxy resin paint etc., the paint film of these polymer can be dissolve or swell in appropriate organic molten
All contain some active function groups, such as ester bond, ehter bond, amido link in agent, and in these polymer molecules, in the acid of heat or alkali
In the presence of easily there is acidolysis, the chemical reaction such as alkaline hydrolysis, cause its molecular chain rupture, therefore, old paint film is easily by organic solvent
Paint stripper or alkali paint remover, acid paint stripper are removed.
The effect of paint stripper is exactly the adhesion of space structure or paint film with base material for destroying paint film.Solvent in paint stripper
Molecule infiltration in the molecule segment of paint film polymer, paint film dissolving；Or the increase of polymer macromolecule volume produces internal stress, when
When internal stress is enough to destroy the bonding force of paint film and base material, paint film has just come off.
At present, domestic paint remover products have negative shadow to environment mostly all containing harmful components such as methene chloride, phenol
Ring, it is also larger to human injury.With developing rapidly for China's economy, the enhancing of people's environmental consciousness and European Union member countries are to dichloromethane
Forbidding for alkane type paint stripper, develops the degradable paint stripper of new green environment protection, is the important subject of those skilled in the art.
The species of paint stripper can be divided into following a few classes：1st, acid paint stripper；2nd, alkali paint remover；3rd, solvent-borne type depainting
Agent.Wherein acid and alkali paint remover can produce corrosion, and the acid or alkaline sewage for producing to the danger of environment to matrix
Evil is big.It is corrosion-free to matrix and solvent stripper is mostly with OOS as main solvent, therefore compare receive in recent years
Welcome.But inevitably, these organic solvents carry certain toxicity, and volatilization is fast, contaminated air.For example：Some take off
Paint agent is the solvent stripper with dichloromethane as main solvent, and in chloralkane derivative, dichloromethane is most light liquid
Body compound, molecular weight is small, and molecule can be low, and penetration is strong；But dichloromethane toxicity is larger, volatilization is fast, easily by operator
Suction, the health to operator produces threat, while solvent is evaporate into air, will also result in the destruction of ozone layer.And have
A little paint strippers both increased the viscosity of solvent using paraffin with paraffin as thickener, also reduce the volatility of solvent, though effect
It is good, but removal is more difficult, it is difficult to carry out second spray painting.
The content of the invention
In view of the above-mentioned problems existing in the prior art, the applicant provides a kind of paint removing composition of environment-friendly high-efficiency.This
Paint removing composition is water solubility, and safety and environmental protection, paint removal efficiency is high.
Technical scheme is as follows：
A kind of paint removing composition of environment-friendly high-efficiency, is made up of the raw material of following parts by weight：
Dibasic ester：30~45 parts；
Dipropylene glycol methyl ether：5~15 parts；
Phenmethylol：5~8 parts；
Water：15~25 parts；
BTA：0.5~2 part；
Formic acid：1~5 part；
Boric acid：1~5 part；
Ethanol：8~15 parts；
NP-10：0.5~1.5 part；
Sodium gluconate：2~6 parts；
Poly-epoxy succinic acid：0.01~1 part.
A kind of preparation method of the paint removing composition of environment-friendly high-efficiency, comprises the following steps that：
(1) after mixing poly-epoxy succinic acid, sodium gluconate, simultaneously ultrasonic disperse 1~3 is small for stirring at 40~50 DEG C
When；
(2) BTA, formic acid, boric acid, ethanol, NP-10 are well mixed at 20~30 DEG C, are then quickly poured into
Mixture after the ultrasonic disperse of obtain 40~50 DEG C of step (1), stirs 5~20 minutes under 800~1200r/m speed,
It is cooled to 10~20 DEG C；
(3) after mixing dibasic ester, dipropylene glycol methyl ether, phenmethylol, water, ultrasonic disperse 1~3 is small at 40~50 DEG C
When, 10~20 DEG C that step (2) is obtained of mixture is then quickly poured into, stirred with the speed of 1100~1300r/m at room temperature
Mix 10~30 minutes, then proceed to be stirred 2~4 hours with the speed of 100~400r/m at room temperature, obtain final product.
The present invention is beneficial to be had technical effect that：
The applicant is on knowhow for many years and substantial amounts of experiment basis, and it is best that optimization has obtained this group of combination property
Remover recipe.The formula not only environmental protection, nonflammable explosive, paint removal efficiency is high, have a wide range of application, safety non-toxic, and
And have the multi-functionals such as depainting, cleaning, antirust concurrently, and it is the high product of a cost performance, can significantly reduce depainting work
The labour intensity of industry, and significantly reduce depainting cost.
In order to better improve the operating efficiency of this paint removing composition, preferably realize integrating the mesh of multi-functional
Mark, the applicant has carried out the design of granular to the preparation technology of paint removing composition.By different batches add raw material and
The influence of temperature difference so that raw material divide into some groups, a raw material for group is wrapped up by the raw material of another group, most
If end form wraps up the microspheroidal dispersion of form into dried layer, there is when actually used function and continuous action that target spot is positioned
Effect.
The advantage following points of this paint removing composition, but be not limited to it is following some.
1st, paint removing composition of the present invention is water miscible, environmental protection, it is to avoid solvent stripper pollution environment, harmful
The defect of human body.And water miscible paint stripper is more prone to cleaning, being rinsed with water to clean.
2nd, paint removing composition flash-point of the present invention is higher than 100 DEG C, non-ignitable not quick-fried, during greatly improving stripping operation
Security, can use (gas station, gas station etc.) in danger zone, the various modes such as can spray with pressure and use.
3rd, (less than 80 DEG C) are non-volatile at low temperature for paint removing composition of the present invention, (more than the 80 DEG C) volatilizations under medium and high temperature
Quickly, evaporation rate is more than the twice of the paint stripper with dimethylbenzene as core, can quick depainting, in 5~30 minutes
Can reach depainting rate 98~100%.
4th, paint removing composition of the present invention has cleaning action, just substrate surface is cleaned while depainting, one
Lift two to obtain, greatly improve operating efficiency.
5th, paint removing composition of the present invention has certain anti-rust action, when constructing operation it cannot be guaranteed that depainting and rust cleaning are continuous
When carrying out, the metal surface non-corrosive of depainting can be ensured after depainting.What the length of guarantee time was contacted with metal surface
The temperature of air, humidity are relevant with acid-base value, can ensure not returning rust in 20~30 days under mal-condition.
6th, the present invention not only has removing rapidly and efficiently to act on to common coating, and to being difficult to the coating type for removing
(such as organosilicon epoxy resin paint) also has quick and efficient removal effect.
7th, paint removing composition of the present invention has a wide range of application, and can be used for temperature is~20~60 DEG C, different moisture levels and acid
In basicity and the environment containing corrosive gas, for example high altitude localities, extremely cold area, underground, ocean lake, mountain area are close
Woods etc., can carry out the equipments such as naval vessel, tank, nuclear facilities, aircraft, automobile, seamount buoy overhauls depainting, it can also be used to natural gas
Pipeline, petroleum storage tank, bridge, harbour, electric appliance casing etc. overhaul depainting.
Specific embodiment
With reference to embodiment, the present invention is specifically described.
Embodiment 1
The applicant provides a kind of paint removing composition of environment-friendly high-efficiency, is made up of the raw material of following parts by weight：
Dibasic ester：30 parts；Dipropylene glycol methyl ether：5 parts；Phenmethylol：5 parts；Water：15 parts；BTA：0.5 part；First
Acid：1 part；Boric acid：1 part；Ethanol：8 parts；NP-10：0.5 part；Sodium gluconate：2 parts；Poly-epoxy succinic acid：0.01 part.
The preparation method of the paint removing composition of the environment-friendly high-efficiency is comprised the following steps that：
(1) after mixing poly-epoxy succinic acid, sodium gluconate, simultaneously ultrasonic disperse 3 hours are stirred at 40 DEG C；
(2) BTA, formic acid, boric acid, ethanol, NP-10 are well mixed at 20 DEG C, are then quickly poured into step
(1) mixture after the ultrasonic disperse of 40 DEG C for obtaining, stirs 20 minutes under 800r/m speed, is cooled to 10 DEG C；
(3) after dibasic ester, dipropylene glycol methyl ether, phenmethylol, water being mixed, ultrasonic disperse 3 hours at 40 DEG C, then
10 DEG C that step (2) is obtained of mixture is quickly poured into, is stirred 30 minutes with the speed of 1100r/m at room temperature, then proceeded to
Stirred 4 hours with the speed of 100r/m at room temperature, obtained final product.
Embodiment 2
The applicant provides a kind of paint removing composition of environment-friendly high-efficiency, is made up of the raw material of following parts by weight：
Dibasic ester：45 parts；Dipropylene glycol methyl ether：15 parts；Phenmethylol：8 parts；Water：25 parts；BTA：2 parts；First
Acid：5 parts；Boric acid：5 parts；Ethanol：15 parts；NP-10：1.5 parts；Sodium gluconate：6 parts；Poly-epoxy succinic acid：1 part.
The preparation method of the paint removing composition of the environment-friendly high-efficiency is comprised the following steps that：
(1) after mixing poly-epoxy succinic acid, sodium gluconate, simultaneously ultrasonic disperse 3 hours are stirred at 50 DEG C；
(2) BTA, formic acid, boric acid, ethanol, NP~10 are well mixed at 30 DEG C, are then quickly poured into step
Suddenly the mixture after the ultrasonic disperse of (1) obtain 50 DEG C, stirs 5 minutes under 1200r/m speed, is cooled to 20 DEG C；
(3) after dibasic ester, dipropylene glycol methyl ether, phenmethylol, water being mixed, ultrasonic disperse 1 hour at 50 DEG C, then
20 DEG C that step (2) is obtained of mixture is quickly poured into, is stirred 10 minutes with the speed of 1300r/m at room temperature, then proceeded to
Stirred 2 hours with the speed of 400r/m at room temperature, obtained final product.
Embodiment 3
The applicant provides a kind of paint removing composition of environment-friendly high-efficiency, is made up of the raw material of following parts by weight：
Dibasic ester：38 parts；Dipropylene glycol methyl ether：10 parts；Phenmethylol：6 parts；Water：20 parts；BTA：1.5 parts；
Formic acid：3 parts；Boric acid：3 parts；Ethanol：12 parts；NP-10：1 part；Sodium gluconate：4 parts；Poly-epoxy succinic acid：0.5 part.
The preparation method of the paint removing composition of the environment-friendly high-efficiency is comprised the following steps that：
(1) after mixing poly-epoxy succinic acid, sodium gluconate, simultaneously ultrasonic disperse 2 hours are stirred at 45 DEG C；
(2) BTA, formic acid, boric acid, ethanol, NP-10 are well mixed at 25 DEG C, are then quickly poured into step
(1) mixture after the ultrasonic disperse of 45 DEG C for obtaining, stirs 15 minutes under 1000r/m speed, is cooled to 15 DEG C；
(3) after dibasic ester, dipropylene glycol methyl ether, phenmethylol, water being mixed, ultrasonic disperse 2 hours at 45 DEG C, then
15 DEG C that step (2) is obtained of mixture is quickly poured into, is stirred 15 minutes with the speed of 1200r/m at room temperature, then proceeded to
Stirred 3 hours with the speed of 250r/m at room temperature, obtained final product.
Test case 1：Paint removing effect is tested
The paint removing composition that embodiment 3 is prepared carries out depainting experiment, and (25 DEG C) are carried out at room temperature for experiment.Take often
Base material, engraves horizontal line and vertical line in advance on the surface of base material, horizontal line and vertical line constitute 100 grids.Brushed on base material normal
Coating, has brushed and one layer of present composition has been coated with different timing nodes, and every group of experiment takes 3 samples, respectively
The paint removing composition of covering is wiped out at 5 minutes after application composition, 15 minutes, 30 minutes, depainting situation is checked.It is de-
The percentage of paint is defined according to the quantity for exposing grid, such as expose 30 after depainting in 100 grids, then depainting area is
30%.
Experiment 1：Base material selects cast iron, and priming paint is made from epoxy primer, it is not dry before spray paint, such adhesive force compared with
It is good.Finish paint is using alcohol-base foundry coating (such as dragon's fountain casts the sx-202 models coating of material).Spraying is preserved at room temperature again after finishing
Different timing nodes, then carries out depainting experiment with this paint removing composition.Result is as shown in table 1.
Table 1
Experiment 2：Base material selects 306 stainless steels, coating selection to be most difficult to the organosilicon epoxy resin (France of desorption at present
The organic siliconresin 6405X of BLUESTAR (purchase RHODIA factories)).Sand is beaten before spray painting on present stainless steel substrate, coating is thick
It is general thickness to spend, and solidifies 2 hours after coating at 300 DEG C again.Solidification preserves different when segmentum intercalaris at room temperature again after finishing
Point, then carries out depainting experiment with this paint removing composition.Result is as shown in table 2.
Table 2
| Base material is stainless steel | 5 minutes | 15 minutes | 30 minutes |
| After coating adheres to 30 days | Slough 55% | Slough 72% | Slough 100% |
| After coating adheres to 90 days | Slough 51% | Slough 79% | Slough 100% |
| After coating attachment half a year | Slough 46% | Slough 71% | Slough 98% |
| After coating adheres to 1 year | Slough 40% | Slough 67% | Slough 95% |
Experiment 3：Base material selects aluminium alloy, the commercially available weather-proof finish paint of S04-21 aliphatic acrylics polyurethane of coating selection.Spray
Paint preserves different timing nodes at room temperature again after finishing, and then carries out depainting experiment with this paint removing composition.The result such as institute of table 3
Show.
Table 3
| Base material is aluminium alloy | 5 minutes | 15 minutes | 30 minutes |
| After coating adheres to 30 days | Slough 98% | Slough 100% | Slough 100% |
| After coating adheres to 90 days | Slough 95% | Slough 100% | Slough 100% |
| After coating attachment half a year | Slough 93% | Slough 97% | Slough 100% |
| After coating adheres to 1 year | Slough 91% | Slough 96% | Slough 100% |
Experiment 4：Base material preserves different at room temperature again after selecting copper coin, the commercially available woodenware nitrate paint of coating selection, mopping to finish
Timing node, then carry out depainting experiment with this paint removing composition.Result is as shown in table 4.
Table 4
| Base material is copper coin | 5 minutes | 15 minutes | 30 minutes |
| After coating adheres to 30 days | Slough 97% | Slough 100% | Slough 100% |
| After coating adheres to 90 days | Slough 93% | Slough 100% | Slough 100% |
| After coating attachment half a year | Slough 87% | Slough 98% | Slough 100% |
| After coating adheres to 1 year | Slough 82% | Slough 95% | Slough 100% |
Four groups of experiment depaintings of the above do not produce burn into destruction after finishing to base material.Four groups of experiments of the above are chosen
All it is the very strong combination of the adhesion of base material and coating.If run into life, production conventional combination (for example cast iron+
Polyurethane, electronic component+F-C paint, aluminium alloy+corrosion resistant coating etc.), this paint removing composition is general both can be with 5~10 minutes
Reach the effect of complete depainting.
By applicant's many experiments, it is found that this paint removing composition paint removing effect at 20~60 DEG C is best, in this model
Enclose that interior temperature is higher, paint stripping rate is faster.Paint stripping rate has declined in the range of 10~20 DEG C, and paint stripping rate is 20 at 10 DEG C
At DEG C 80%, and during close to zero degree, paint stripping rate is 30~50% at 20 DEG C.Ensureing the feelings that paint removing composition does not solidify
Under condition, as long as the time long enough of covering base material, is finally attained by 100% paint removing effect.
At room temperature, the paint general for adhesive force, was attained by removing completely in 5~10 minutes；It is attached for special
Put forth effort very strong paint, or multi-layer paint films situation, the cover time for extending paint removing composition can also reach what is removed completely
Effect.If it is desired to accelerating paint stripping rate, environment temperature during depainting can be raised.
Test case 2：Rust-proof effect test after depainting
Experiment 1：After by four kinds of complete depaintings of base material in test case 1, any cleaning treatment is not done, be directly put into base material
Temperature is 40 DEG C, humidity is 80%, in the free environment of divulging information, detection substrate surface produces the time of rust staining and produces rust staining
Grid quantity, as a result as shown in table 5.
Table 5
Experiment 2：After by four kinds of complete depaintings of base material in test case 1, any cleaning treatment is not done, respectively with hairbrush brush one
The saline solution and the sodium hydroxide solution of 10wt% of layer 3wt%, are subsequently placed in varying environment, test them and rust staining occur
Time, as a result as shown in table 6.
(the unit of table 6：My god)
This experiment show paint removing composition of the present invention also have under certain antirust function, mal-condition can ensure 20~
Rust is not returned in 30 days.The environment harsh for condition of work, if can not at once do antirust work after depainting, using this depainting group
Compound can strive for valuable time.
Test case 3：Stability test
This paint removing composition can keep stable performance in 5 years in the case where temperature is 4~10 DEG C；Can protect at room temperature
Deposit 36~48 months.
Claims (2)
1. a kind of paint removing composition of environment-friendly high-efficiency, it is characterised in that be made up of the raw material of following parts by weight：
Dibasic ester：30~45 parts；
Dipropylene glycol methyl ether：5~15 parts；
Phenmethylol：5~8 parts；
Water：15~25 parts；
BTA：0.5~2 part；
Formic acid：1~5 part；
Boric acid：1~5 part；
Ethanol：8~15 parts；
NP-10：0.5~1.5 part；
Sodium gluconate：2~6 parts；
Poly-epoxy succinic acid：0.01~1 part.
2. a kind of preparation method of the paint removing composition of environment-friendly high-efficiency, it is characterised in that comprise the following steps that：
(1) after mixing poly-epoxy succinic acid, sodium gluconate, simultaneously ultrasonic disperse 1~3 hour is stirred at 40~50 DEG C；
(2) BTA, formic acid, boric acid, ethanol, NP-10 are well mixed at 20~30 DEG C, are then quickly poured into step
(1) mixture after the ultrasonic disperse of 40~50 DEG C for obtaining, stirs 5~20 minutes under 800~1200r/m speed, cooling
To 10~20 DEG C；
(3) after dibasic ester, dipropylene glycol methyl ether, phenmethylol, water being mixed, ultrasonic disperse 1~3 hour at 40~50 DEG C,
Then 10~20 DEG C that step (2) is obtained of mixture is quickly poured into, 10 is stirred with the speed of 1100~1300r/m at room temperature
~30 minutes, then proceed to be stirred 2~4 hours with the speed of 100~400r/m at room temperature, obtain final product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710133645.6A CN106883669A (en) | 2017-03-08 | 2017-03-08 | A kind of paint removing composition of environment-friendly high-efficiency |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710133645.6A CN106883669A (en) | 2017-03-08 | 2017-03-08 | A kind of paint removing composition of environment-friendly high-efficiency |
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| Publication Number | Publication Date |
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| CN106883669A true CN106883669A (en) | 2017-06-23 |
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ID=59180484
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| CN201710133645.6A Pending CN106883669A (en) | 2017-03-08 | 2017-03-08 | A kind of paint removing composition of environment-friendly high-efficiency |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115786043A (en) * | 2022-10-26 | 2023-03-14 | 山东三达科技发展有限公司 | Polyurethane/polyurea cleaning agent |
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| CN101137727A (en) * | 2005-04-15 | 2008-03-05 | 埃科莱布有限公司 | Floor finish stripper composition thickened after dilution with water and method of stripping |
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| CN101724311A (en) * | 2010-01-27 | 2010-06-09 | 合肥华清金属表面处理有限责任公司 | Paint remover for plane aluminium alloy skin depainting treatment |
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| CN115786043A (en) * | 2022-10-26 | 2023-03-14 | 山东三达科技发展有限公司 | Polyurethane/polyurea cleaning agent |
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Inventor after: Song Xiaolin Inventor after: Zhao Junzhong Inventor after: Kong Yuxiang Inventor before: Song Xiaolin |
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Application publication date: 20170623 |