CN112646520A - Base-material-free hot melt adhesive for lithium battery - Google Patents
Base-material-free hot melt adhesive for lithium battery Download PDFInfo
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- CN112646520A CN112646520A CN202011536391.0A CN202011536391A CN112646520A CN 112646520 A CN112646520 A CN 112646520A CN 202011536391 A CN202011536391 A CN 202011536391A CN 112646520 A CN112646520 A CN 112646520A
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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
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J153/00—Adhesives based on block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Adhesives based on derivatives of such polymers
- C09J153/02—Vinyl aromatic monomers and conjugated dienes
- C09J153/025—Vinyl aromatic monomers and conjugated dienes modified
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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
- 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
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/08—Macromolecular additives
-
- 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
- C09J157/00—Adhesives based on unspecified polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C09J157/02—Copolymers of mineral oil hydrocarbons
-
- 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
- C09J7/10—Adhesives in the form of films or foils without carriers
-
- 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
- C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
- C09J7/35—Heat-activated
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/20—Applications use in electrical or conductive gadgets
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
-
- 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
- C09J2453/00—Presence of block copolymer
Abstract
The invention relates to a base material-free hot melt adhesive for a lithium battery, which comprises the following components in parts by weight: 30-60 parts of hydrogenated styrene block copolymer; 4-16 parts of amorphous alpha-olefin copolymer; 30-70 parts of hydrogenated petroleum resin I; 5-16 parts of terpene resin; 4-20 parts of oxidized polyethylene wax; 0.5-3 parts of antioxidant. The terpene resin is introduced, so that the initial adhesive cohesion and the creep resistance after aging resistance in a hot melt adhesive system can be enhanced, the heating stability, the adhesion and the high-temperature adhesion of the hot melt adhesive system are improved, and the adhesion performance after electrolyte aging resistance is improved; the polyethylene oxide is introduced, the concentration of the active end group of the resin is low, no obvious end group activity exists, the resin has the performances of flocculation, slow release, lubrication, dispersion and the like, is non-toxic and non-irritant, enhances the dispersion and lubrication effects of the system, and further increases the bonding strength of the system.
Description
Technical Field
The invention relates to a hot melt adhesive for a lithium battery, in particular to a substrate-free hot melt adhesive for a lithium battery and a preparation method thereof, and belongs to the technical field of adhesives.
Background
The lithium ion battery is a rechargeable battery, and is widely applied to the portable fields of mobile phones, notebooks and the like due to the advantages of high working voltage, small volume, light weight, high energy, no memory effect, small self-discharge, long cycle life and the like. In addition, because the lithium ion battery does not contain heavy metal chromium, compared with a nickel-chromium battery, the pollution to the environment is greatly reduced.
With the development of scientific technology, the requirements of various application fields on lithium batteries are higher and higher, especially the trend of high energy density and light weight, and the drop resistance of the lithium batteries determines the stability and safety of the lithium batteries. The prior solution is to fix the inner surfaces of a lithium battery cell and an outer packaging aluminum-plastic film by using a hot melt adhesive tape, and the Chinese invention patent CN104610883 discloses a rubber type pressure sensitive adhesive which takes polyethylene terephthalate as a base material and is coated with synthetic rubber styrene-isoprene-styrene copolymer (SIS), low molecular weight polyolefin rubber and petroleum resin, and the adhesive tape is cross-linked by adopting an initiator, and has the following defects: (1) the overall thickness of the adhesive tape is relatively thick, and the energy density of the lithium battery is influenced to a certain extent; (2) polyethylene terephthalate (PET) is used as a base material of the adhesive tape, and after the base material is bonded at a certain temperature and pressure, the difference of the compositions of adhesives on two sides is large, so that a stress effect can be generated, and simultaneously, burrs are easily generated during cutting of the PET base material, so that the risk of puncturing a diaphragm is generated, and potential influences are exerted on the performance and safety of a battery; (3) the adhesive tape has poor electrolyte resistance, and the bonding force is generally poor after the adhesive tape is resistant to electrolyte aging, so that the electrical property of the battery is influenced.
Aiming at the demand of the lithium battery market for thinner and thinner hot melt adhesive tapes, a thinner hot melt adhesive product with smaller stress during use needs to be provided to replace an adhesive tape, and meanwhile, the adhesive tape can ensure the adhesiveness, has better electrolyte resistance, and does not influence the electrical property of the lithium battery.
Disclosure of Invention
The invention provides a base material-free hot melt adhesive for a lithium battery and a preparation method thereof, aiming at the defects of the existing hot melt adhesive tape for the lithium battery.
The technical scheme of the invention is as follows:
the utility model provides a no substrate hot melt adhesive for lithium cell which characterized in that: the thickness of the hot melt adhesive for the lithium battery is 30-50 mu m, and the hot melt adhesive comprises the following components in parts by weight:
wherein the hydrogenated petroleum resin I is a hydrogenated petroleum resin with a softening point of 80-145 ℃.
Further, the hydrogenated styrene block copolymer is one or a combination of a hydrogenated styrene-polyisoprene-styrene block copolymer (SEPS) and a hydrogenated styrene-polybutadiene-styrene block copolymer (SEBS), wherein the styrene content of the hydrogenated styrene-polyisoprene-styrene block copolymer (SEPS) is preferably 20-30%, and the styrene content of the hydrogenated styrene-polybutadiene-styrene block copolymer (SEBS) is preferably 30-40%, and the hydrogenated styrene-polybutadiene-styrene block copolymer (SEBS) is commercially available.
Further, the amorphous alpha-olefin copolymer is preferably a copolymer having a softening point of 90-160 ℃ and a melt viscosity of 3000-10000 mPas at 190 ℃, and the amorphous alpha-olefin copolymer (APAO) has the characteristics of low VOC, low odor, excellent toughness and elasticity, good elongation and bendability and the like.
Furthermore, the terpene resin is a thermoplastic resin from viscous liquid to brittle solid, which is prepared by polymerizing terpenes such as turpentine, beta-pinene, terpene diene and the like, and the CAS:9003-74-1 can strengthen the initial adhesive cohesion and the creep resistance after aging resistance in a hot melt adhesive system, further improve the heating stability, the adhesion and the high-temperature adhesion of the hot melt adhesive system, and improve the aging resistance of electrolyte.
Further, the oxidized polyethylene wax is linear polyether with CAS:68441-17-8, and the molecular weight is 300-1200.
Further, the antioxidant is Irganox1010 antioxidant.
The hot melt adhesive without the base material provided by the invention has the beneficial effects that:
(1) the total thickness is 30-50 mu m, the thickness is thin, and the energy density of the lithium battery can be improved to the maximum extent;
(2) the problems of stress generated after the adhesive tape is bonded, infirm bonding of the adhesive tape and the like can be solved by using no base material and performing hot melt adhesive dispensing, burrs generated after the base material is cut can not be generated, the risk of puncturing the diaphragm is avoided, and the anti-falling performance of the battery is further improved;
(3) the material used by the hot melt adhesive does not react with the electrolyte, does not influence the service life of the battery, mainly bonds the battery cell and the outer package aluminum-plastic film by heating and pressurizing, and has strong bonding force on the inner surfaces of the battery cell and the outer package aluminum-plastic film.
(4) The thickness of the hot melt system is controllable, and the thickness of the hot melt adhesive is controlled by adjusting the heating temperature, the pressurizing pressure and the pressurizing time, so that the production process of the battery is convenient to optimize.
(5) The terpene resin is introduced, so that the initial adhesive cohesion and the creep resistance after aging resistance in a hot melt adhesive system can be enhanced, the heating stability, the adhesion and the high-temperature adhesion of the hot melt adhesive system are further improved, and the adhesion performance after electrolyte aging resistance is improved.
(6) The polyethylene oxide is introduced, the concentration of the active end group of the resin is low, and no obvious end group activity exists. The adhesive has the properties of flocculation, slow release, lubrication, dispersion and the like, is non-toxic and non-irritant, enhances the dispersion and lubrication effects of a system, and further increases the bonding strength of the system.
The preparation method of the substrate-free hot melt adhesive for the lithium battery comprises the following steps:
1) weighing the hydrogenated styrene block copolymer, the amorphous alpha-olefin copolymer, the polyethylene oxide and the antioxidant in parts by weight, and uniformly mixing the hydrogenated styrene block copolymer, the amorphous alpha-olefin copolymer, the polyethylene oxide and the antioxidant in a reaction kettle in a dry stirring manner.
2) Heating the temperature of the reaction kettle to 120 ℃, heating for 30min, and then starting stirring at the rotating speed of 50r/min for 30 min.
3) Weighing the hydrogenated petroleum resin I and the terpene resin according to the parts by weight, and slowly adding the hydrogenated petroleum resin I and the terpene resin into a reaction kettle while stirring.
4) And (3) raising the temperature to 150 ℃, stirring at the rotating speed of 50r/min for 60min, and filtering while the mixture is hot after the stirring is finished to obtain the hot melt adhesive.
Detailed Description
The principles and features of this invention are described below in conjunction with examples, which are set forth to illustrate, but are not to be construed to limit the scope of the invention.
Example 1:
the base material-free hot melt adhesive for the lithium battery is characterized in that the thickness of the hot-pressed colloid is 35 mu m, and the preparation method comprises the following steps:
weighing 40 parts of hydrogenated styrene block copolymer SEBS G1654(Kraton), 10 parts of amorphous alpha-olefin copolymer Vestoplast 408(Evonik) and 1 part of antioxidant (Irganox 1010) according to parts by weight, and uniformly mixing in a reaction kettle in a dry stirring manner; heating the temperature of the reaction kettle to 120 ℃, heating for 30min, and then starting stirring at a rotation speed of 50r/min for 30 min; weighing 35 parts of hydrogenated petroleum resin ARKON P90(Arakawa), 14 parts of terpene resin (CAS:9003-74-1) and 5 parts of polyethylene oxide (molecular weight 520) according to parts by weight, and slowly adding into a reaction kettle while stirring; and (3) heating to 150 ℃, stirring at the rotating speed of 50r/min for 60min, and filtering while the mixture is hot after the stirring is finished to obtain the hot melt adhesive.
Example 2:
the base material-free hot melt adhesive for the lithium battery is characterized in that the thickness of the hot-pressed colloid is 45 mu m, and the preparation method comprises the following steps:
weighing 40 parts of hydrogenated styrene block copolymer SEBS G1654(Kraton), 10 parts of amorphous alpha-olefin copolymer Vestoplast 408(Evonik) and 1 part of antioxidant (Irganox 1010) according to parts by weight, and uniformly mixing in a reaction kettle in a dry stirring manner; heating the temperature of the reaction kettle to 120 ℃, heating for 30min, and then starting stirring at a rotation speed of 50r/min for 30 min; weighing 35 parts of hydrogenated petroleum resin ARKON P90(Arakawa), 14 parts of terpene resin (CAS:9003-74-1) and 5 parts of polyethylene oxide (molecular weight 520) according to parts by weight, and slowly adding into a reaction kettle while stirring; and (3) heating to 150 ℃, stirring at the rotating speed of 50r/min for 60min, and filtering while the mixture is hot after the stirring is finished to obtain the hot melt adhesive.
Example 3:
the base material-free hot melt adhesive for the lithium battery is characterized in that the thickness of the hot-pressed colloid is 35 mu m, and the preparation method comprises the following steps:
weighing 35 parts of hydrogenated styrene block copolymer SEBS G1654(Kraton), 10 parts of amorphous alpha-olefin copolymer Vestoplast 408(Evonik) and 1 part of antioxidant (Irganox 1010) according to parts by weight, and uniformly mixing in a reaction kettle in a dry stirring manner; heating the temperature of the reaction kettle to 120 ℃, heating for 30min, and then starting stirring at a rotation speed of 50r/min for 30 min; weighing 35 parts of hydrogenated petroleum resin ARKON P90(Arakawa), 19 parts of terpene resin (CAS:9003-74-1) and 5 parts of polyethylene oxide (molecular weight 520) according to parts by weight, and slowly adding into a reaction kettle while stirring; and (3) heating to 150 ℃, stirring at the rotating speed of 50r/min for 60min, and filtering while the mixture is hot after the stirring is finished to obtain the hot melt adhesive.
Comparative example 4:
the base material-free hot melt adhesive for the lithium battery is characterized in that the thickness of the hot-pressed colloid is 35 mu m, and the preparation method comprises the following steps:
weighing 35 parts of hydrogenated styrene block copolymer SEBS G1654(Kraton), 10 parts of amorphous alpha-olefin copolymer Vestoplast 408(Evonik) and 1 part of antioxidant (Irganox 1010) according to parts by weight, and uniformly mixing in a reaction kettle in a dry stirring manner; heating the temperature of the reaction kettle to 120 ℃, heating for 30min, and then starting stirring at a rotation speed of 50r/min for 30 min; weighing 35 parts of hydrogenated petroleum resin ARKON P90(Arakawa), 0 part of terpene resin (CAS:9003-74-1) and 5 parts of polyethylene oxide (molecular weight 520) according to parts by weight, and slowly adding into a reaction kettle while stirring; and (3) heating to 150 ℃, stirring at the rotating speed of 50r/min for 60min, and filtering while the mixture is hot after the stirring is finished to obtain the hot melt adhesive.
Comparative example 5:
the base material-free hot melt adhesive for the lithium battery is characterized in that the thickness of the hot-pressed colloid is 35 mu m, and the preparation method comprises the following steps:
weighing 35 parts of hydrogenated styrene block copolymer SEBS G1654(Kraton), 10 parts of amorphous alpha-olefin copolymer Vestoplast 408(Evonik) and 1 part of antioxidant (Irganox 1010) according to parts by weight, and uniformly mixing in a reaction kettle in a dry stirring manner; heating the temperature of the reaction kettle to 120 ℃, heating for 30min, and then starting stirring at a rotation speed of 50r/min for 30 min; weighing 35 parts of hydrogenated petroleum resin ARKON P90(Arakawa), 5 parts of terpene resin (CAS:9003-74-1) and 5 parts of polyoxyethylene (molecular weight 520) according to parts by weight, and slowly adding into a reaction kettle while stirring; and (3) heating to 150 ℃, stirring at the rotating speed of 50r/min for 60min, and filtering while the mixture is hot after the stirring is finished to obtain the hot melt adhesive.
The hot melt adhesives obtained in examples 1-3 and the products of comparative examples are tested for various performances, and the test method is as follows:
1) preparation of a test sample: and (3) placing the hot melt adhesive in a dispensing machine at 150 ℃ for 60min, dispensing the hot melt adhesive on the surface of the aluminum foil under the pressure of 0.4MPa, and cooling to room temperature. Place the aluminium-plastic film on the aluminium foil for the hot melt adhesive is in the middle of aluminium-plastic film and aluminium foil, with hot press hot pressing, hot pressing temperature: hot pressing at 85 deg.C under 0.4MPa for 60min, and placing a spacer with a certain thickness before hot pressing to ensure the uniform thickness of the colloid.
2) Testing the peel strength of the pressure-sensitive adhesive tape according to the method described in the national standard GB/T2792-2014;
3) and (3) testing the peel strength after hot pressing: adhering an aluminum foil to the first pressure-sensitive adhesive layer, adhering cast polypropylene (cpp layer) in the aluminum-plastic film to the second adhesive layer, hot-pressing for more than 60min at 80-90 ℃ under the pressure of more than 10kg, cooling to normal temperature, and then testing the peel strength according to the method of the national standard GB/T2792-;
4) and (3) testing the peeling strength of the hot-pressed soaking electrolyte: according to 2), a test sample piece is soaked in the electrolyte of the lithium battery, and the mass ratio of the electrolyte is as follows: EC/PC/DEC/EP 30/10/30/30, 1M LiPF6 lithium salt mass ratio calculated as 12.5%. Cooling to normal temperature for more than 6h at 80-90 ℃, and then testing the peel strength according to the method of national standard GB/T2792-2014;
5) and (3) testing the soaking color of the electrolyte: soaking the electrolyte for more than 6 hours at the temperature of 80-90 ℃ (the mass ratio of the colloid to the electrolyte is 1: 20-100) and observing the color change of the electrolyte. The results are shown in table 1:
table 1: performance test data for examples 1-3 and comparative products
As can be seen from the results shown in Table 1, the lithium battery hot melt adhesive provided by the invention has good adhesive property, high adhesive strength after being resistant to electrolyte, and no chemical reaction with the electrolyte.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (4)
1. The base-material-free hot melt adhesive for the lithium battery is characterized by comprising the following components in parts by weight:
2. the hot melt adhesive according to claim 1, wherein the hydrogenated petroleum resin I is a hydrogenated petroleum resin having a softening point of 80-145 ℃; the hydrogenated styrene block copolymer is one or a compound of a hydrogenated styrene-polyisoprene-styrene block copolymer and a hydrogenated styrene-polybutadiene-styrene block copolymer, wherein the hydrogenated styrene-polyisoprene-styrene block copolymer has a styrene content of 20-30%, and the hydrogenated styrene-polybutadiene-styrene block copolymer has a styrene content of 30-40%.
3. The hot melt adhesive according to claim 1, wherein the amorphous α -olefin copolymer is a copolymer having a softening point of 90 to 160 ℃ and a melt viscosity of 3000 to 10000mPas at 190 ℃.
4. The hot melt adhesive of claim 1, wherein the antioxidant is Irganox 1010.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011536391.0A CN112646520A (en) | 2020-12-23 | 2020-12-23 | Base-material-free hot melt adhesive for lithium battery |
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| CN202011536391.0A CN112646520A (en) | 2020-12-23 | 2020-12-23 | Base-material-free hot melt adhesive for lithium battery |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113913138A (en) * | 2021-09-29 | 2022-01-11 | 东莞澳中新材料科技股份有限公司 | Electrolyte-resistant adhesive for lithium battery, double-sided hot melt adhesive tape using electrolyte-resistant adhesive and preparation method of double-sided hot melt adhesive tape |
| CN114045121A (en) * | 2021-10-29 | 2022-02-15 | 烟台德邦科技股份有限公司 | Single-sided hot-melt termination adhesive tape for lithium battery and preparation method thereof |
| CN114163955A (en) * | 2021-12-27 | 2022-03-11 | 烟台德邦科技股份有限公司 | Single-sided hot-melt ultrathin termination adhesive tape for lithium battery and preparation method thereof |
| CN114163938A (en) * | 2021-12-08 | 2022-03-11 | 烟台德邦科技股份有限公司 | Substrate-free hot melt adhesive film for soft package lithium battery and preparation method and application thereof |
| CN114752190A (en) * | 2022-04-19 | 2022-07-15 | 东莞鸿冠新材料科技有限公司 | PET heat-sealing auxiliary agent, PET heat-sealing sheet and preparation method thereof |
| CN115806789A (en) * | 2022-09-26 | 2023-03-17 | 嘉好(太仓)新材料股份有限公司 | Hot melt adhesive for bonding ear straps of masks and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109517533A (en) * | 2018-10-26 | 2019-03-26 | 烟台德邦科技有限公司 | A kind of lithium battery no substrate hot melt two-sided adhesive tape and preparation method thereof |
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2020
- 2020-12-23 CN CN202011536391.0A patent/CN112646520A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109517533A (en) * | 2018-10-26 | 2019-03-26 | 烟台德邦科技有限公司 | A kind of lithium battery no substrate hot melt two-sided adhesive tape and preparation method thereof |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113913138A (en) * | 2021-09-29 | 2022-01-11 | 东莞澳中新材料科技股份有限公司 | Electrolyte-resistant adhesive for lithium battery, double-sided hot melt adhesive tape using electrolyte-resistant adhesive and preparation method of double-sided hot melt adhesive tape |
| CN113913138B (en) * | 2021-09-29 | 2023-10-24 | 东莞澳中新材料科技股份有限公司 | Electrolyte-resistant adhesive for lithium battery, double-sided hot melt adhesive tape using same and preparation method thereof |
| CN114045121A (en) * | 2021-10-29 | 2022-02-15 | 烟台德邦科技股份有限公司 | Single-sided hot-melt termination adhesive tape for lithium battery and preparation method thereof |
| CN114163938A (en) * | 2021-12-08 | 2022-03-11 | 烟台德邦科技股份有限公司 | Substrate-free hot melt adhesive film for soft package lithium battery and preparation method and application thereof |
| CN114163938B (en) * | 2021-12-08 | 2023-09-15 | 烟台德邦科技股份有限公司 | Base material-free hot melt adhesive film for soft package lithium battery and preparation method and application thereof |
| CN114163955A (en) * | 2021-12-27 | 2022-03-11 | 烟台德邦科技股份有限公司 | Single-sided hot-melt ultrathin termination adhesive tape for lithium battery and preparation method thereof |
| CN114752190A (en) * | 2022-04-19 | 2022-07-15 | 东莞鸿冠新材料科技有限公司 | PET heat-sealing auxiliary agent, PET heat-sealing sheet and preparation method thereof |
| CN115806789A (en) * | 2022-09-26 | 2023-03-17 | 嘉好(太仓)新材料股份有限公司 | Hot melt adhesive for bonding ear straps of masks and preparation method thereof |
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Application publication date: 20210413 |