CN110540810A - Anti-oxidation high-flexibility electromagnetic shielding adhesive tape - Google Patents
Anti-oxidation high-flexibility electromagnetic shielding adhesive tape Download PDFInfo
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- CN110540810A CN110540810A CN201910776997.2A CN201910776997A CN110540810A CN 110540810 A CN110540810 A CN 110540810A CN 201910776997 A CN201910776997 A CN 201910776997A CN 110540810 A CN110540810 A CN 110540810A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L1/00—Compositions of cellulose, modified cellulose or cellulose derivatives
- C08L1/08—Cellulose derivatives
- C08L1/26—Cellulose ethers
- C08L1/28—Alkyl ethers
- C08L1/286—Alkyl ethers substituted with acid radicals, e.g. carboxymethyl cellulose [CMC]
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J161/00—Adhesives based on condensation polymers of aldehydes or ketones; Adhesives based on derivatives of such polymers
- C09J161/04—Condensation polymers of aldehydes or ketones with phenols only
- C09J161/06—Condensation polymers of aldehydes or ketones with phenols only of aldehydes with phenols
- C09J161/14—Modified phenol-aldehyde condensates
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
- C09J7/29—Laminated material
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2244—Oxides; Hydroxides of metals of zirconium
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/10—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet
- C09J2301/12—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers
- C09J2301/122—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers the adhesive layer being present only on one side of the carrier, e.g. single-sided adhesive tape
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/10—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet
- C09J2301/16—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the structure of the carrier layer
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/30—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier
- C09J2301/302—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier the adhesive being pressure-sensitive, i.e. tacky at temperatures inferior to 30°C
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2400/00—Presence of inorganic and organic materials
- C09J2400/10—Presence of inorganic materials
- C09J2400/16—Metal
- C09J2400/163—Metal in the substrate
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2400/00—Presence of inorganic and organic materials
- C09J2400/20—Presence of organic materials
- C09J2400/26—Presence of textile or fabric
- C09J2400/263—Presence of textile or fabric in the substrate
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2467/00—Presence of polyester
- C09J2467/006—Presence of polyester in the substrate
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
- Adhesive Tapes (AREA)
Abstract
The invention discloses an anti-oxidation high-flexibility electromagnetic shielding tape which comprises a substrate layer, wherein an optical PET layer is arranged on the lower side of the substrate layer, a first pasting layer is arranged on the lower side of the optical PET layer, an anti-oxidation layer is arranged on the lower side of the first pasting layer, a reflecting layer is arranged on the lower side of the anti-oxidation layer, a second pasting layer is arranged on the lower side of the reflecting layer, a shielding layer is arranged on the lower side of the second pasting layer, and a pressure-sensitive adhesive layer is arranged on the lower side of the wave-absorbing. The invention has good electromagnetic shielding effect, oxidation resistance and high flexibility.
Description
Technical Field
The invention belongs to the technical field of adhesive tapes, and particularly relates to an anti-oxidation high-flexibility electromagnetic shielding adhesive tape.
Background
The electronic product can generate noise due to interference of high-frequency electromagnetic waves, which affects the use quality, if a human body is exposed to a strong electromagnetic field for a long time, the electronic product is likely to be susceptible to cancer lesion, so that electromagnetic interference is imperative, a shielding body is used for surrounding an interference source of a component, a circuit, a combined part, a cable or the whole system to prevent an interference electromagnetic field from diffusing outwards, or a shielding body is used for surrounding a receiving circuit, equipment or system to prevent the receiving circuit, the equipment or the system from being influenced by an external electromagnetic field, the electromagnetic field is shielded by a shielding adhesive tape which is commonly used at present and is divided into various shielding adhesive tapes made of metal foils or conductive fabrics, such as a copper foil tape, an aluminum foil tape, a conductive fabric adhesive tape and the like, and the electronic product is. The oxidation resistance and flexibility of the conventional electromagnetic shielding tape are not ideal, and in view of this, it is necessary to research an oxidation-resistant high-flexibility electromagnetic shielding tape.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention aims to provide the electromagnetic shielding adhesive tape with good electromagnetic shielding effect, oxidation resistance and high flexibility.
In order to achieve the above object, the present invention adopts the following technical solutions:
Anti-oxidation high compliance electromagnetic shield sticky tape, including the substrate layer, the downside of substrate layer is provided with optics PET layer, and the downside on optics PET layer is provided with the first layer of pasting, and the first downside of pasting the layer is provided with anti-oxidation coating, and anti-oxidation coating's downside is provided with the reflection stratum, and the downside of reflection stratum is provided with the second and pastes the layer, and the downside that the layer was pasted to the second is provided with the shielding layer, and the downside of absorbing layer is provided with pressure sensitive adhesive layer.
Preferably, the shielding layer is one of a copper foil layer, an aluminum foil layer, a conductive woven fabric or a conductive non-woven fabric.
Still preferably, the oxidation preventing layer is an antioxidant, and the antioxidant comprises the following components in parts by weight: 29-37 parts of sodium carboxymethylcellulose, 22-34 parts of sodium metaphosphate, 16-23 parts of star anise oil, 15-19 parts of starch, 11-18 parts of biological enzyme and 7-12 parts of zirconium dioxide.
More preferably, the bottom of the aforementioned reflective layer is coated with a modifier comprising the following components in parts by weight: 15-32 parts of cationic quaternary ammonium salt, 19-21 parts of tea saponin, 11-18 parts of cocamidopropyl betaine, 13-15 parts of amino silicone oil, 7-16 parts of ginkgo extract and 3-10 parts of aloe extract.
Further preferably, the first adhesive layer and the second adhesive layer are adhesives, and the adhesives comprise the following components in parts by weight: 23-38 parts of diaminodiphenylmethane, 17-23 parts of rosin modified phenolic resin, 11-21 parts of epoxypropane phenyl ether, 9-16 parts of ethylene diamine tetraacetic acid and 3-7 parts of polyisobutylene.
Specifically, the reflecting layer is a resin film layer with a thickness of 5-13 μm.
Preferably, the thickness of the pressure-sensitive adhesive layer is 8-19 μm.
More preferably, the thickness of the substrate layer is 5 to 26 μm.
The invention has the advantages that: the anti-oxidation high-flexibility electromagnetic shielding adhesive tape is simple in structure and has a good electromagnetic shielding effect; the anti-oxidation performance of the adhesive tape can be improved through the antioxidant, yellowing of the adhesive tape can be avoided, the water resistance of an anti-oxidation layer can be improved through the aniseed oil and the starch component, the water resistance of the adhesive tape can be improved, and the anti-oxidation performance of the biological enzyme component can be effectively improved; the tea saponin and the cocamidopropyl betaine in the modifier have a synergistic effect, and the softness of the adhesive tape can be effectively improved by adding the ginkgo extract and the aloe extract, so that the quality of the adhesive tape is improved; the first layer of pasting and the second layer of pasting have very high viscidity, and colorless tasteless, have reduced the harm to workman's health.
Detailed Description
The present invention will be described in detail with reference to the following embodiments.
Example 1
Anti-oxidation high compliance electromagnetic shield sticky tape, including the substrate layer, the thickness of substrate layer is 5 mu m, the downside of substrate layer is provided with optics PET layer, the downside on optics PET layer is provided with first layer of pasting, the first downside of pasting the layer is provided with anti-oxidation coating, anti-oxidation coating's downside is provided with the reflection stratum, the reflection stratum is resin film layer, thickness is 5 mu m, the downside of reflection stratum is provided with the second and pastes the layer, the downside that the layer was pasted to the second is provided with the shielding layer, the shielding layer is the copper foil layer, the downside of inhaling the wave layer is provided with pressure sensitive adhesive layer, pressure sensitive adhesive layer's thickness is 8 mu m.
The anti-oxidation layer is an antioxidant which comprises the following components in parts by weight: 29 parts of sodium carboxymethylcellulose, 22 parts of sodium metaphosphate, 16 parts of star anise oil, 15 parts of starch, 11 parts of biological enzyme and 7 parts of zirconium dioxide.
The bottom of the reflecting layer is coated with a modifier, and the modifier comprises the following components in parts by weight: 15 parts of cationic quaternary ammonium salt, 19 parts of tea saponin, 11 parts of cocamidopropyl betaine, 13 parts of amino silicone oil, 7 parts of ginkgo extract and 3 parts of aloe extract.
the first sticking layer and the second sticking layer are both viscose which comprises the following components in parts by weight: 23 parts of diaminodiphenylmethane, 17 parts of rosin modified phenolic resin, 11 parts of propylene oxide phenyl ether, 9 parts of ethylene diamine tetraacetic acid and 3 parts of polyisobutylene.
Example 2
Anti-oxidation high compliance electromagnetic shield sticky tape, including the substrate layer, the thickness of substrate layer is 26 μm, the downside of substrate layer is provided with optics PET layer, the downside on optics PET layer is provided with first layer of pasting, the first downside of pasting the layer is provided with anti-oxidation coating, anti-oxidation coating's downside is provided with the reflection stratum, the reflection stratum is resin film layer, thickness is 13 μm, the downside of reflection stratum is provided with the second and pastes the layer, the downside that the layer was pasted to the second is provided with the shielding layer, the shielding layer is the aluminium foil layer, the downside of inhaling the wave layer is provided with pressure sensitive adhesive layer, pressure sensitive adhesive layer's thickness is 19 μm.
The anti-oxidation layer is an antioxidant which comprises the following components in parts by weight: 37 parts of sodium carboxymethylcellulose, 34 parts of sodium metaphosphate, 23 parts of star anise oil, 19 parts of starch, 18 parts of biological enzyme and 12 parts of zirconium dioxide.
The bottom of the reflecting layer is coated with a modifier, and the modifier comprises the following components in parts by weight: 32 parts of cationic quaternary ammonium salt, 21 parts of tea saponin, 18 parts of cocamidopropyl betaine, 15 parts of amino silicone oil, 16 parts of ginkgo extract and 10 parts of aloe extract.
The first sticking layer and the second sticking layer are both viscose which comprises the following components in parts by weight: 38 parts of diaminodiphenylmethane, 23 parts of rosin modified phenolic resin, 21 parts of propylene oxide phenyl ether, 16 parts of ethylene diamine tetraacetic acid and 7 parts of polyisobutylene.
Example 3
Anti-oxidation high compliance electromagnetic shield sticky tape, including the substrate layer, the thickness of substrate layer is 18 mu m, the downside of substrate layer is provided with optics PET layer, the downside on optics PET layer is provided with first layer of pasting, the first downside of pasting the layer is provided with anti-oxidation layer, anti-oxidation layer's downside is provided with the reflection stratum, the reflection stratum is resin film layer, thickness is 9 mu m, the downside of reflection stratum is provided with the second and pastes the layer, the downside that the layer was pasted to the second is provided with the shielding layer, the shielding layer is the copper foil layer, the aluminium foil layer, one kind in electrically conductive weaving or the electrically conductive non-woven fabrics, the downside of inhaling the wave layer is provided with pressure sensitive adhesive layer, pressure sensitive adhesive layer.
The anti-oxidation layer is an antioxidant which comprises the following components in parts by weight: 33 parts of sodium carboxymethylcellulose, 28 parts of sodium metaphosphate, 20 parts of star anise oil, 17 parts of starch, 14 parts of biological enzyme and 10 parts of zirconium dioxide.
The bottom of the reflecting layer is coated with a modifier, and the modifier comprises the following components in parts by weight: 21 parts of cationic quaternary ammonium salt, 20 parts of tea saponin, 16 parts of cocamidopropyl betaine, 14 parts of amino silicone oil, 12 parts of ginkgo extract and 7 parts of aloe extract.
The first sticking layer and the second sticking layer are both viscose which comprises the following components in parts by weight: 30 parts of diaminodiphenylmethane, 20 parts of rosin modified phenolic resin, 16 parts of propylene oxide phenyl ether, 13 parts of ethylene diamine tetraacetic acid and 5 parts of polyisobutylene.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It should be understood by those skilled in the art that the above embodiments do not limit the present invention in any way, and all technical solutions obtained by using equivalent alternatives or equivalent variations fall within the scope of the present invention.
Claims (8)
1. Anti-oxidation high compliance electromagnetic shield sticky tape, including the substrate layer, its characterized in that, the downside of substrate layer is provided with optics PET layer, the downside on optics PET layer is provided with the first layer of pasting, the first downside of pasting the layer is provided with anti-oxidation layer, anti-oxidation layer's downside is provided with the reflection stratum, the downside of reflection stratum is provided with the second and pastes the layer, the downside that the layer was pasted to the second is provided with the shielding layer, the downside of absorbing the layer is provided with pressure sensitive adhesive layer.
2. The anti-oxidation high-flexibility electromagnetic shielding tape according to claim 1, wherein the shielding layer is one of a copper foil layer, an aluminum foil layer, a conductive woven fabric or a conductive non-woven fabric.
3. The anti-oxidation high-flexibility electromagnetic shielding tape according to claim 1, wherein the anti-oxidation layer is an anti-oxidation agent, and the anti-oxidation agent comprises the following components in parts by weight: 29-37 parts of sodium carboxymethylcellulose, 22-34 parts of sodium metaphosphate, 16-23 parts of star anise oil, 15-19 parts of starch, 11-18 parts of biological enzyme and 7-12 parts of zirconium dioxide.
4. The anti-oxidation high-flexibility electromagnetic shielding tape according to claim 1, wherein a modifier is coated on the bottom of the reflection layer, and the modifier comprises the following components in parts by weight: 15-32 parts of cationic quaternary ammonium salt, 19-21 parts of tea saponin, 11-18 parts of cocamidopropyl betaine, 13-15 parts of amino silicone oil, 7-16 parts of ginkgo extract and 3-10 parts of aloe extract.
5. The anti-oxidation high-flexibility electromagnetic shielding tape according to claim 1, wherein the first adhesive layer and the second adhesive layer are adhesives, and the adhesives comprise the following components in parts by weight: 23-38 parts of diaminodiphenylmethane, 17-23 parts of rosin modified phenolic resin, 11-21 parts of epoxypropane phenyl ether, 9-16 parts of ethylene diamine tetraacetic acid and 3-7 parts of polyisobutylene.
6. The anti-oxidation highly flexible electromagnetic shielding tape according to claim 1, wherein the reflecting layer is a resin film layer having a thickness of 5 to 13 μm.
7. The anti-oxidation high-flexibility electromagnetic shielding tape according to claim 1, wherein the thickness of the pressure-sensitive adhesive layer is 8 to 19 μm.
8. The anti-oxidation high-flexibility electromagnetic shielding tape according to claim 1, wherein the thickness of the base material layer is 5 to 26 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910776997.2A CN110540810A (en) | 2019-08-22 | 2019-08-22 | Anti-oxidation high-flexibility electromagnetic shielding adhesive tape |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910776997.2A CN110540810A (en) | 2019-08-22 | 2019-08-22 | Anti-oxidation high-flexibility electromagnetic shielding adhesive tape |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110540810A true CN110540810A (en) | 2019-12-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910776997.2A Pending CN110540810A (en) | 2019-08-22 | 2019-08-22 | Anti-oxidation high-flexibility electromagnetic shielding adhesive tape |
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|---|---|
| CN (1) | CN110540810A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104817985A (en) * | 2015-04-28 | 2015-08-05 | 中科院广州化学有限公司南雄材料生产基地 | Heat conducting adhesive and preparation method and application thereof |
| CN205115362U (en) * | 2015-10-21 | 2016-03-30 | 李同乐 | Inhale ripples shielding sticky tape |
| CN207944054U (en) * | 2018-01-03 | 2018-10-09 | 深圳市永裕精密科技有限公司 | FPC conductive double sided adhesive tapes |
| CN109135604A (en) * | 2018-08-08 | 2019-01-04 | 河源昆腾电子科技有限公司 | A kind of ultra-thin EMI electromagnetic shielding adhesive tape |
-
2019
- 2019-08-22 CN CN201910776997.2A patent/CN110540810A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104817985A (en) * | 2015-04-28 | 2015-08-05 | 中科院广州化学有限公司南雄材料生产基地 | Heat conducting adhesive and preparation method and application thereof |
| CN205115362U (en) * | 2015-10-21 | 2016-03-30 | 李同乐 | Inhale ripples shielding sticky tape |
| CN207944054U (en) * | 2018-01-03 | 2018-10-09 | 深圳市永裕精密科技有限公司 | FPC conductive double sided adhesive tapes |
| CN109135604A (en) * | 2018-08-08 | 2019-01-04 | 河源昆腾电子科技有限公司 | A kind of ultra-thin EMI electromagnetic shielding adhesive tape |
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Application publication date: 20191206 |
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| RJ01 | Rejection of invention patent application after publication |