CN217323929U - Packaging adhesive film - Google Patents
Packaging adhesive film Download PDFInfo
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- CN217323929U CN217323929U CN202220319328.XU CN202220319328U CN217323929U CN 217323929 U CN217323929 U CN 217323929U CN 202220319328 U CN202220319328 U CN 202220319328U CN 217323929 U CN217323929 U CN 217323929U
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- 239000002313 adhesive film Substances 0.000 title claims abstract description 52
- 238000004806 packaging method and process Methods 0.000 title claims abstract description 42
- 239000010410 layer Substances 0.000 claims abstract description 120
- 239000012790 adhesive layer Substances 0.000 claims abstract description 45
- 239000000853 adhesive Substances 0.000 claims description 4
- 230000001070 adhesive effect Effects 0.000 claims description 4
- 229920006280 packaging film Polymers 0.000 claims 2
- 239000012785 packaging film Substances 0.000 claims 2
- 239000012528 membrane Substances 0.000 abstract description 17
- 238000005538 encapsulation Methods 0.000 abstract description 16
- 239000000463 material Substances 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 230000032683 aging Effects 0.000 description 6
- 239000005038 ethylene vinyl acetate Substances 0.000 description 6
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 6
- 238000002360 preparation method Methods 0.000 description 6
- 238000002310 reflectometry Methods 0.000 description 6
- 239000004925 Acrylic resin Substances 0.000 description 5
- 229920000178 Acrylic resin Polymers 0.000 description 5
- 238000005520 cutting process Methods 0.000 description 5
- 238000004049 embossing Methods 0.000 description 5
- 239000000155 melt Substances 0.000 description 5
- 238000002844 melting Methods 0.000 description 5
- 230000008018 melting Effects 0.000 description 5
- -1 polyethylene terephthalate Polymers 0.000 description 5
- 229920000139 polyethylene terephthalate Polymers 0.000 description 5
- 239000005020 polyethylene terephthalate Substances 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 238000002834 transmittance Methods 0.000 description 5
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 230000002950 deficient Effects 0.000 description 4
- 238000005096 rolling process Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005187 foaming Methods 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 238000003475 lamination Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000004132 cross linking Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000032798 delamination Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000005357 flat glass Substances 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002985 plastic film Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 239000008393 encapsulating agent Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000012956 testing procedure Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Images
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/52—PV systems with concentrators
Landscapes
- Laminated Bodies (AREA)
Abstract
The utility model relates to a packaging adhesive film, which comprises a first adhesive layer, a reflection increasing layer and a second adhesive layer which are sequentially stacked; the reflection-increasing layer comprises a base layer and a reflecting layer arranged on the surface of the base layer. Basic unit and reflector set up alone in the reflection-increasing layer of encapsulation glued membrane, the structure customization of photovoltaic module can be based on to the structure of reflector to make the encapsulation glued membrane can match completely with the subassembly board type.
Description
Technical Field
The utility model relates to a photovoltaic module technical field especially relates to a packaging adhesive film.
Background
With the development and upgrade of the photovoltaic module industry, the power demand of the module is higher and higher.
CN111863996A provides a photovoltaic module containing a multi-layer packaging adhesive film and a preparation method thereof. The photovoltaic module with the multilayer packaging adhesive films comprises a front plate, an upper adhesive film, a battery piece, a lower adhesive film and a rear plate which are sequentially arranged from top to bottom, wherein at least one layer of the upper adhesive film and at least one layer of the lower adhesive film are multilayer packaging adhesive films, and the multilayer packaging adhesive films comprise at least two layers of packaging adhesive films. The photovoltaic module containing the multilayer packaging adhesive film has excellent PID (potential induced degradation) resistance, and can meet the requirements of packaging adhesive films with different functions.
CN111718670A discloses a white packaging adhesive film for a photovoltaic module and a preparation method thereof, wherein the packaging adhesive film comprises a high-adhesion reliable upper layer, a middle layer and a lower layer which are adhered from top to bottom in sequence; the middle layer is a white foamed foam reflective layer, the lower layer is a transparent polyolefin layer, and the surface of the white foamed foam reflective layer is provided with an embossing structure with a diffuse reflection effect. After the structure and the method are adopted, the disclosed white packaging adhesive film for the low-cost high-gain photovoltaic module has the advantages of high bonding strength with a battery piece, good packaging module reliability and low material cost. The front surface of the foaming layer structure is subjected to foaming crosslinking, and then the surface structure of the foaming layer structure is not heated and melted in the laminating process, so that the integrity of the diffuse reflection structure is ensured, the diffuse reflection effect of reflected light among the gaps of the battery pieces is improved, and the power of the assembly is greatly improved.
The traditional reflection film can not be superposed and used in the existing multi-main-grid structure battery, the power of a packaging adhesive film is increased limitedly, the gap increasing reflection film is compounded on the back plate glass, special equipment is needed for operation, the efficiency is low, the early investment is large, and the practical application is inconvenient. The finished component has a high risk of poor appearance and an increased risk of delamination in long-term use.
In summary, it is important to develop a packaging adhesive film with optimized performance and low risk of failure.
SUMMERY OF THE UTILITY MODEL
An it is not enough to prior art, the utility model aims to provide an encapsulation glued membrane, basic unit sets up alone with the reflection stratum in the reflection increasing layer of encapsulation glued membrane, and the structure customization of photovoltaic module can be followed to the structure on reflection stratum to make the encapsulation glued membrane can match completely with the subassembly board type.
To achieve the purpose, the utility model adopts the following technical proposal:
the utility model relates to a packaging adhesive film, which comprises a first adhesive layer, a reflection increasing layer and a second adhesive layer which are sequentially stacked;
the reflection increasing layer comprises a base layer and a reflection layer arranged on the surface of the base layer.
Encapsulation glued membrane add the anti-layer include the basic unit and set up in the reflection stratum on basic unit surface because add the anti-layer in basic unit and the reflection stratum sets up alone, the structure customization of photovoltaic module can be based on to the structure of reflection stratum to make encapsulation glued membrane can match completely with the subassembly board type, reach the outward appearance and optimize. The design of the three-layer structure effectively avoids the delaminating risk of the assembly and the possibility of short circuit of the battery in the use of the traditional gap-increasing and reverse-layer, and reduces the poor appearance proportion such as the deviation of the film and the like in the lamination process.
Preferably, the average thickness of the first adhesive layer is 170-250 μm, such as 180 μm, 190 μm, 200 μm, 210 μm, 220 μm, 230 μm, 240 μm, etc.
Preferably, the maximum thickness of the reflection increasing layer is 50-120 μm, such as 60 μm, 80 μm, 100 μm, etc.
The maximum thickness of the reflection increasing layer is 50-120 μm, the utility model discloses based on optional basic unit thickness, match production capacity, increase anti-demand, finished product yield, suitability demand, advance the overfitting and verify and obtain.
Preferably, the thickness of the base layer is 30-75 μm, and the thickness of the base layer is 30-75 μm, such as 40 μm, 50 μm, 60 μm, 70 μm, and the like.
Preferably, the average thickness of the second adhesive layer is 150-250 μm, such as 160 μm, 180 μm, 200 μm, 220 μm, 240 μm, etc.
Preferably, the surface of the reflective layer is provided with a localized region and a non-localized region.
Preferably, the surface of the adhesive layer adjacent to the positioning area is smooth, and the surface of the adhesive layer adjacent to the non-positioning area is rough.
The utility model discloses in, only need set up positioning area and non-positioning area with the reflection stratum as required to the roughness through the surface of the adhesive linkage adjacent to it distinguishes, when the location, need not additionally to increase the system, according to the reflection condition that the roughness of surface embodies, can accomplish location discernment, simple easy operation.
Preferably, the reflective layer is disposed on one side of the base layer, and the reflective layer is close to the first adhesive layer and far from the second adhesive layer.
Preferably, the first adhesive layer is provided with an embossing structure at a position corresponding to the positioning region of the reflective layer.
Preferably, the second adhesive layer is provided with an embossed structure.
In the utility model, the reflecting layer is close to the first bonding layer, when the reflecting layer is far away from the second bonding layer, the first bonding layer is provided with an embossing structure, and the module version is matched for positioning and increasing the reflection; and the second adhesive linkage sets up the knurling structure, in order to increase frictional force, soaks glass, glued membrane and glued membrane adhesion when preventing the rolling influence tensile.
Illustratively, the material of the base layer comprises polyethylene terephthalate.
Illustratively, the material of the reflective layer includes acrylic resin.
Illustratively, the first adhesive layer and the second adhesive layer are made of materials which are respectively and independently selected from ethylene-vinyl acetate copolymer (EVA) and/or ethylene-octene copolymer (POE).
Preferably, the first adhesive layer and the second adhesive layer each independently have a melt index of 5 to 10g/10min, such as 6g/10min, 7g/10min, 8g/10min, 9g/10min, and the like.
Preferably, the melting points of the first adhesive layer and the second adhesive layer are each independently 55 to 85 ℃, e.g., 60 ℃, 65 ℃, 70 ℃, 75 ℃, 80 ℃, etc.
Preferably, the light transmittance of the first adhesive layer and the second adhesive layer is each independently 90.5% or more, for example, 91%, 92%, 93%, 94%, 95%, or the like.
Illustratively, the preparation method comprises the following steps:
coating raw materials of the reflecting layer on one side or two sides of the base layer, carrying out plasma beam electroplating to obtain the reflection increasing layer, and then coating bonding raw materials on two sides of the reflection increasing layer to form a first bonding layer and a second bonding layer, thus obtaining the packaging adhesive film.
Compared with the prior art, the utility model discloses following beneficial effect has:
(1) when the encapsulation glued membrane is arranged in photovoltaic module, because the structure customizability that increases the anti-layer, the encapsulation glued membrane can match completely with the subassembly board type, reaches the outward appearance optimization. The design and processing technology of the three-layer structure effectively avoids the delaminating risk of the assembly and the possibility of short circuit of the battery in the use of the traditional gap-increasing and reverse-layer, and reduces the poor appearance proportion such as film deviation and the like in lamination.
(2) Encapsulation glued membrane can use the assembly line of conventional encapsulation glued membrane through increasing image system location discernment, need not newly-increased equipment when the subassembly end is used. The identification points are shot into a preset plate type of the packaging adhesive film, the plate type is input into the positioning identification system, when the identification points of the packaging adhesive film plate type pass through the positioning points, the system is fed back, the assembly line cutting machine is controlled through the computer, and the cutting machine is accurately controlled to cut the adhesive film so as to achieve the purpose of matching the preset adhesive film plate type with the assembly. The reflectivity of the reflection increasing layer is far higher than that of the back plate or the traditional adhesive film, so that the secondary utilization rate of sunlight is effectively improved.
(3) The utility model discloses in, subassembly power gain is more than 1.07%, and the electrical property defective rate is below 0.73%, and the outward appearance defective rate is below 0.89%, among the ageing-resistant capability test, it is unusual to have no insulation, and the bad proportion of outward appearance is within 1/20, and the power change absolute value is within 2.38%.
Drawings
FIG. 1 is a schematic structural view of a packaging adhesive film according to example 1;
wherein, 1-a first adhesive layer; 2-increasing the reverse layer; 21-a base layer; 22-a reflective layer; 3-second adhesive layer.
Detailed Description
To facilitate understanding of the present invention, the present invention has the following embodiments. It should be understood by those skilled in the art that the examples are only for the purpose of facilitating understanding of the present invention, and should not be construed as specifically limiting the present invention.
Example 1
The present embodiment provides a packaging adhesive film, a schematic structural diagram of which is shown in fig. 1, wherein the packaging adhesive film is composed of a first adhesive layer 1, a reflection-increasing layer 2 and a second adhesive layer 3, which are sequentially stacked;
the reflection increasing layer comprises a base layer 21 and a reflection layer 22 arranged on one side of the base layer, relevant thickness information is shown in a table I, the maximum thickness of the reflection layer is measured for multiple times, and the surface reflectivity is larger than or equal to 95%.
The base layer is made of polyethylene terephthalate;
the material of the reflecting layer is UV light-cured acrylic resin;
the first bonding layer and the second bonding layer are both made of EVA (the mole percentage of VA is 28.5%), the melt index is 8g/10min, the melting point is 65 ℃, and the light transmittance is more than 90.5%.
The average thickness of the first adhesive layer was 200 μm.
The average thickness of the second adhesive layer was 200 μm.
The preparation method of the packaging adhesive film comprises the following steps:
(1) an acrylic resin was coated on one side of polyethylene terephthalate, and the surface layer was cured by UV. Is subjected to plasma beam plating. Cutting according to the screen model to obtain an enhanced reflection layer;
(2) rolling the reflection increasing layer on the transfer film, coating EVA on one side of the reflection increasing layer through a single-screw extruder, and performing embossing, cooling, traction and rolling to obtain a second bonding layer;
(3) coating EVA on the other side of the reflection increasing layer through a single screw extruder, embossing in a positioning area of the reflection layer, cooling, drawing and rolling, and finally irradiating the bonding layer obtained in the step (3) with an ultraviolet light source to keep pre-crosslinking at 5% -35% to form a first bonding layer, thus obtaining the packaging adhesive film.
Example 2
The embodiment provides a packaging adhesive film, which consists of a first adhesive layer, a reflection increasing layer and a second adhesive layer which are sequentially stacked;
the reflection increasing layer comprises a base layer and a reflection layer arranged on one side of the base layer, relevant thickness information is shown in a table I, the maximum thickness of the reflection layer is measured for multiple times, and the surface reflectivity is larger than or equal to 95%.
The base layer is made of polyethylene terephthalate;
the material of the reflecting layer is UV light-cured acrylic resin.
The first bonding layer and the second bonding layer are both made of POE, the melt index is 6.5g/10min, the melting point is 70 ℃, and the light transmittance is over 90.5%.
The average thickness of the first adhesive layer was 250 μm.
The average thickness of the second adhesive layer was 250 μm.
The preparation method of the packaging adhesive film is the same as that described in example 1.
Example 3
The embodiment provides a packaging adhesive film, which consists of a first adhesive layer, a reflection increasing layer and a second adhesive layer which are sequentially stacked;
the reflection increasing layer comprises a base layer and a reflection layer arranged on one side of the base layer, relevant thickness information is shown in a table I, the maximum thickness of the reflection layer is measured for multiple times, and the surface reflectivity is larger than or equal to 95%.
The base layer is made of polyethylene terephthalate;
the material of the reflecting layer is UV light-cured acrylic resin.
The first adhesive layer is POE, the melt index is 10g/10min, the melting point is 83 ℃, and the light transmittance is more than 90.5%.
The second bonding layer is made of EVA (the mole percentage of VA is 26.5%), the melt index is 5g/10min, the melting point is 55 ℃, and the light transmittance is more than 90.5%.
The average thickness of the first adhesive layer was 170 μm.
The second adhesive layer had an average thickness of 150 μm.
The preparation method of the packaging adhesive film is the same as that of the embodiment 1.
Examples 4 to 7
Examples 4 to 7 differ from example 1 in that the maximum thicknesses of the reflection-increasing layers were 50 μm (example 4), 120 μm (example 5), 40 μm (example 6) and 130 μm (example 7), respectively, and the thickness of the base layer was 30 μm, the remainder being the same as in example 1.
Comparative example 1
The anti-reflection film is a gap film and acts between cell strings and between cells, and is attached to the back plate glass or the back plate. The gap film is a 3M gap film BC 81.
Performance testing
The encapsulant films described in examples 1-7 and comparative example 1 were used in photovoltaic modules for the following tests:
(1) test methods for solar energy transmission and reflection according to ASTM E424-71 sheet material;
(2) calculating a procedure for whiteness and yellowness index according to color coordinates measured by an ASTM E313-2010 instrument;
(3) photovoltaic modules for ground use according to IEC 61215-2 relate to identification and typing part 2: testing procedures;
(4) the mechanical properties were measured according to GB/T6672 plastic film and sheet thickness.
The tested properties included build-up layer surface reflectivity, module power gain rate, electrical performance defect rate (short circuit, EL crazing), appearance defect rate (blister, offset, retraction), and aging resistance (insulation, appearance, power attenuation).
The test results are summarized in table four.
The data in the table four are analyzed, and it can be seen that the power gain of each example is slightly higher than that of the comparative example, and the power attenuation ratio of the finished component after aging is similar. Each example provides an advantage over the comparative examples in terms of the appearance of the assembly (initial, after aging). The examples are similar in electrical yield to the comparative examples, but are more advantageous because of appearance effects (delamination increases the risk of insulation failure). There is a significant advantage in device yield. The utility model discloses in, in each embodiment, subassembly power gain is more than 1.07%, and the electrical property defective rate is below 0.73%, and the outward appearance defective rate is below 0.89%, and among the ageing-resistant capability test, it is insulating unusual not to have, and the poor proportion of outward appearance is within 1/20, and the power change absolute value is within 2.38%.
When the encapsulation glued membrane is arranged in photovoltaic module, because the structure customizability that increases the anti-layer, the encapsulation glued membrane can match completely with the subassembly board type, reaches the outward appearance and optimizes. The design and the processing technology of the three-layer structure effectively avoid the delaminating risk of the components and the possibility of short circuit of the battery in the use of the traditional gap-increasing and reflecting layer and reduce the bad appearance proportion such as the deviation of the film and the like in the lamination process. Even in example 3, which is a sample with the thinnest substrate, the mechanical properties of the antireflection film were reduced when the substrate was thin, the film offset and the film sticking offset probabilities were high, the transmission white was increased, and the power gain was somewhat reduced, but other properties were maintained at a higher level.
In addition, the encapsulation glued membrane can use conventional encapsulation glued membrane's assembly line through increasing image system location discernment, need not newly-increased equipment when the subassembly end is used. The identification points are shot into a preset plate type of the packaging adhesive film, the plate type is input into the positioning identification system, when the identification points of the packaging adhesive film plate type pass through the positioning points, the system is fed back, the assembly line cutting machine is controlled through the computer, and the cutting machine is accurately controlled to cut the adhesive film so as to achieve the purpose of matching the preset adhesive film plate type with the assembly. The reflectivity of the reflection increasing layer is far higher than that of the back plate or the traditional adhesive film, so that the secondary utilization rate of sunlight is effectively improved.
As can be seen from the analysis of comparative example 1 and example 1, the performance of comparative example 1 is inferior to that of example 1, and the encapsulation adhesive film with the structure is proved to be more beneficial to the improvement of the performance of the photovoltaic module.
As can be seen from the analysis of examples 4-7, the performance of examples 6-7 is not as good as that of examples 4-5, the whole film thickness of example 6 is 40 μm, the processing and use requirements are high, the mass production is not good, the appearance is poor after the aging of example 7, and the performance of the packaging adhesive film formed by the maximum thickness of the reflection increasing layer within the range of 50-120 μm is better.
The applicant states that the present invention is described in detail by the above embodiments, but the present invention is not limited to the above detailed method, i.e. the present invention is not meant to be implemented by relying on the above detailed method. It should be clear to the skilled person in the technical field that any improvement to the utility model discloses, to the equivalent replacement of each raw materials of the utility model and the interpolation of auxiliary component, the selection of concrete mode etc. all fall within the scope of protection and the scope of disclosure of the utility model.
Claims (10)
1. The packaging adhesive film is characterized by comprising a first adhesive layer, a reflection increasing layer and a second adhesive layer which are sequentially stacked;
the reflection increasing layer comprises a base layer and a reflecting layer arranged on the surface of the base layer;
the base layer and the reflecting layer in the reflection increasing layer of the packaging adhesive film are independently arranged, and the structure of the reflecting layer is customized according to the structure of the photovoltaic module.
2. The adhesive packaging film as claimed in claim 1, wherein the average thickness of the first adhesive layer is 170-250 μm.
3. The packaging adhesive film of claim 1, wherein the maximum thickness of the reflection-increasing layer is 50-120 μm.
4. The packaging adhesive film according to claim 1, wherein the thickness of the base layer is 30-75 μm.
5. The adhesive packaging film as claimed in claim 1, wherein the average thickness of the second adhesive layer is 150-250 μm.
6. The packaging adhesive film according to claim 1, wherein the surface of the reflective layer is provided with a positioning region and a non-positioning region.
7. The packaging adhesive film according to claim 6, wherein the surface of the adhesive layer adjacent to the positioning region is smooth, and the surface of the adhesive layer adjacent to the non-positioning region is rough.
8. The packaging adhesive film of claim 6, wherein the reflective layer is disposed on one side of the base layer, and the reflective layer is close to the first adhesive layer and far from the second adhesive layer.
9. The packaging adhesive film according to claim 8, wherein an embossed structure is disposed at a position of the first adhesive layer corresponding to the positioning region of the reflective layer.
10. The packaging adhesive film according to claim 8, wherein the second adhesive layer is provided with an embossed structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220319328.XU CN217323929U (en) | 2022-02-17 | 2022-02-17 | Packaging adhesive film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220319328.XU CN217323929U (en) | 2022-02-17 | 2022-02-17 | Packaging adhesive film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217323929U true CN217323929U (en) | 2022-08-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220319328.XU Active CN217323929U (en) | 2022-02-17 | 2022-02-17 | Packaging adhesive film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217323929U (en) |
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2022
- 2022-02-17 CN CN202220319328.XU patent/CN217323929U/en active Active
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| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230719 Address after: 213031 Tianhe PV Industrial Park No. 2, Xinbei District, Changzhou, Jiangsu Patentee after: TRINASOLAR Co.,Ltd. Patentee after: TRINA SOLAR( CHANGZHOU) TECHNOLOGY Co.,Ltd. Address before: 213031 Tianhe PV Industrial Park No. 2, Xinbei District, Changzhou, Jiangsu Patentee before: TRINASOLAR Co.,Ltd. |
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