CN109423222A - Organic electronic device adhesive film used for packing material and organic electronic device encapsulating material including it - Google Patents

Organic electronic device adhesive film used for packing material and organic electronic device encapsulating material including it Download PDF

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Publication number
CN109423222A
CN109423222A CN201810956420.5A CN201810956420A CN109423222A CN 109423222 A CN109423222 A CN 109423222A CN 201810956420 A CN201810956420 A CN 201810956420A CN 109423222 A CN109423222 A CN 109423222A
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China
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weight
electronic device
organic electronic
adhesive film
parts
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CN201810956420.5A
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CN109423222B (en
Inventor
金俊镐
李相泌
孔利盛
朴淳天
卢正涉
崔昌烜
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Linuoshi Tip Material Co Ltd
Innox Advanced Materials Co Ltd
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Linuoshi Tip Material Co Ltd
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    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J123/00Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers
    • C09J123/02Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers not modified by chemical after-treatment
    • C09J123/16Elastomeric ethene-propene or ethene-propene-diene copolymers, e.g. EPR and EPDM rubbers
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00Adhesives in the form of films or foils
    • C09J7/10Adhesives in the form of films or foils without carriers
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J11/00Features of adhesives not provided for in group C09J9/00, e.g. additives
    • C09J11/02Non-macromolecular additives
    • C09J11/04Non-macromolecular additives inorganic
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J123/00Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers
    • C09J123/02Adhesives based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Adhesives based on derivatives of such polymers not modified by chemical after-treatment
    • C09J123/18Homopolymers or copolymers of hydrocarbons having four or more carbon atoms
    • C09J123/20Homopolymers or copolymers of hydrocarbons having four or more carbon atoms having four to nine carbon atoms
    • C09J123/22Copolymers of isobutene; Butyl rubber ; Homo- or copolymers of other iso-olefines
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J4/00Adhesives based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; adhesives, based on monomers of macromolecular compounds of groups C09J183/00 - C09J183/16
    • C09J4/06Organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond in combination with a macromolecular compound other than an unsaturated polymer of groups C09J159/00 - C09J187/00
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00Adhesives in the form of films or foils
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00Adhesives in the form of films or foils
    • C09J7/30Adhesives in the form of films or foils characterised by the adhesive composition
    • HELECTRICITY
    • H10SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10KORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K50/00Organic light-emitting devices
    • H10K50/80Constructional details
    • H10K50/84Passivation; Containers; Encapsulations
    • H10K50/844Encapsulations
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2301/00Additional features of adhesives in the form of films or foils
    • C09J2301/30Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier
    • C09J2301/312Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier parameters being the characterizing feature

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Electroluminescent Light Sources (AREA)
  • Laminated Bodies (AREA)

Abstract

The present invention relates to organic electronic device adhesive film used for packing material and including its organic electronic device encapsulating material, it is related to following organic electronic device adhesive film and the organic electronic device encapsulating material including it in more detail, i.e., by remove and obstruct the poor prognostic causes substance such as moisture, impurity makes can not be close to organic electronic device, and while the producible splitting phenomenon when removing moisture removal does not occur, have the effect of that moisture-proof and heat resistance are outstanding.

Description

Organic electronic device adhesive film used for packing material and including its organic electronic device use Encapsulating material
Technical field
The present invention relates to including organic electronic device adhesive film and including its organic electronic device encapsulating material, more It is related to following organic electronic device adhesive film and the organic electronic device encapsulating material including it in detail, that is, pass through The poor prognostic causes substance such as removal and barrier moisture, impurity makes cannot be close to organic electronic device, and will not occur when removal When moisture while producible splitting phenomenon, have the effect of that moisture-proof and heat resistance are outstanding.
Background technique
Organic Light Emitting Diode (OLED:Organic Light Emitting Diode) is luminescent layer by organic compound The light emitting diode of formation utilizes the electro optical phenomenon for making electric current pass through fluorescence organic compound generation light.It is this organic Light emitting diode generally passes through to be turned using three colors (red, green, blue (Red, Green, Blue)) independent pixel method, biology Mode (CCM), green mode etc. are changed to realize primary color, the amount of the organic substance according to included in the luminescent material used Divide into low molecule Organic Light Emitting Diode and macromolecule Organic Light Emitting Diode.Also, it can be divided into according to driving method Passive type type driving method and active driving method.
This Organic Light Emitting Diode is characterized in that, based on itself luminous high efficiency, low voltage drive, simple driving Deng, and have the advantages that HD video can be shown.And, also it is desirable to using organic matter flexible characteristic flexible display and The application of organic electronic device.
Organic Light Emitting Diode is prepared by the way that the organic compound as luminescent layer to be layered on substrate with film morphology. But the organic compound due to being used in Organic Light Emitting Diode is very sensitive to impurity, oxygen and moisture, exists external Exposed or moisture, Oxygen permeation are easy the problem of making its deterioration in characteristics.The degradation phenomena of these organic matters influences organic light-emitting diodes The characteristics of luminescence of pipe, and shorten the service life.In order to prevent this phenomenon, thin-film package process (Thin Film is needed Encapsulation the inside of organic electronic device) is flowed into prevent block, moisture etc..
In the past, metal is filled or glass processing is at the slotted lid form of tool, and will be used to absorb the dry and wet agent of moisture with powder Last form is loaded in its slot, but this method has the following problems: using the organic electronic device of encapsulation using moisture-inhibiting as mesh Level be removed, it is difficult to obstruct the poor prognostic causes substance such as moisture, impurity close to organic electronic device, and be difficult not send out Raw splitting phenomenon producible when removing moisture removal, and it is difficult to have the effect of that moisture-proof and heat resistance are outstanding simultaneously.
Existing technical literature
Patent document
KR published patent number the 10-2006-0030718th (publication date: on 04 11st, 2006)
Summary of the invention
The present invention proposes to solve problem as described above, technical problem to be solved by the present invention lies in, Offer is made by the poor prognostic causes substance such as removal and barrier moisture, impurity cannot be close to organic electronic device, and will not send out Life while producible splitting phenomenon, has the effect of that moisture-proof and heat resistance are outstanding when removing moisture removal.
In order to realize technical problem as described above, organic electronic device of the invention adhesive film used for packing material includes: First adhesive layer;And it is formed in the second adhesive layer of the one side of first adhesive layer, first adhesive layer includes first Hybrid resin, tackifier and the first hygroscopic agent,
The hygroscopic agent BET specific surface area of first hygroscopic agent can be 2~20m2/g。
As a preferably embodiment of the invention, the BET specific surface area of first hygroscopic agent be can be 4~8m2/g。
As a preferably embodiment of the invention, first hygroscopic agent may include silica (SiO2)。
As a preferably embodiment of the invention, first hybrid resin includes first with the weight ratio of 1:0.1~10 Binding resin and the second binding resin, relative to the first hybrid resin of 100 parts by weight, comprising described in 50~300 parts by weight Tackifier may include first hygroscopic agent of 1~40 parts by weight relative to the first hybrid resin of 100 parts by weight.
As a preferably embodiment of the invention, the tackifier can include the first increasing with the weight ratio of 1:0.5~1.5 The softening point of stick and the second tackifier, first tackifier is smaller than the softening point of the second tackifier.
As a preferably embodiment of the invention, first adhesive layer also may include in curing agent and uv initiator More than one relative to the first hybrid resin of 100 parts by weight may include the curing agent of 2~30 parts by weight, relative to First hybrid resin of 100 parts by weight may include the uv initiator of 0.1~5 parts by weight.
As a preferably embodiment of the invention, the viscosity of first adhesive layer can be under the conditions of 50 DEG C of temperature 150000 Pa Secs or less.
As a preferably embodiment of the invention, second adhesive layer may include the second hybrid resin, tackifier and Two hygroscopic agents, second hybrid resin include the first binding resin and the second binding resin, phase with the weight ratio of 1:0.1~10 For the second hybrid resin of 100 parts by weight, the tackifier comprising 60~300 parts by weight, relative to 100 parts by weight Two hybrid resins may include second hygroscopic agent of 50~450 parts by weight.
As a preferably embodiment of the invention, the tackifier may include the first tackifier, and second hygroscopic agent can Include calcium oxide (CaO).
As a preferably embodiment of the invention, second adhesive layer also may include in curing agent and uv initiator More than one, relative to the second hybrid resin of 100 parts by weight, the curing agent comprising 10~40 parts by weight, relative to Second hybrid resin of 100 parts by weight may include the uv initiator of 0.1~8 parts by weight.
As a preferably embodiment of the invention, the viscosity of second adhesive layer can be under the conditions of 50 DEG C of temperature 200000 Pa Secs or more.
As a preferably embodiment of the invention, first hybrid resin and the second hybrid resin include the first bonding tree Rouge and the second binding resin can include first binding resin and the second binding resin with the weight ratio of 1:0.1~10.
As a preferably embodiment of the invention, first binding resin include weight average molecular weight be 30000~ 1550000 random copolymer as made of the copolymerization of ethylene, propylene and diolefinic compounds, second binding resin may include The compound indicated by following chemical formula 1.
Chemical formula 1
In the chemical formula 1, R1For the branched chain type alkenyl of the straight chain type alkenyl or C4~C10 of hydrogen atom or C3~C10, The n is that the weight average molecular weight of the compound indicated by chemical formula 1 meets 30000~1550000 rational.
As a preferably embodiment of the invention, the ethylene and propylene are carried out with the weight ratio of 1:0.3~1.4 random Combined polymerization may include the diolefinic compounds of 2~15 weight percent relative to the random copolymer total weight.
As a preferably embodiment of the invention, the glass of adhesive film of the invention measured according to following measuring methods 1 Adhesion be 1500gf/25mm or more, according to following measuring methods 2 measurement metal adhesion can for 1000gf/25mm with On.
Measuring method 1
Adhesive tape is measured in adhesive film upper side lamination adhesion, after sample is cut with wide 25mm and long 120mm, at 80 DEG C At a temperature of adhesive film bottom surfaces are laminated to glass after, ready sample is placed at normal temperature 30 minutes, and with 300mm/ minutes velocity determination glass adhesions.
Measuring method 2
80 DEG C at a temperature of adhesive film upper side is laminated to 80 μm thickness nickel alloy, and adhesion is measured into glue Tape lamination is in adhesive film bottom surfaces, and after examination cuts sample with wide 25mm and long 120mm, ready sample is placed at normal temperature 30 minutes, and with 300mm/ minutes velocity determination metal adhesions.
On the other hand, organic electronic device encapsulating material of the invention includes organic electronic device of the invention above-mentioned Use adhesive film.
Also, luminaire of the invention includes substrate, organic electronic device and organic electronic device encapsulating material, institute At least one side that organic electronic device is formed in substrate is stated, the organic electronic device encapsulating material is for being packaged with electromechanical son Equipment.
Hereinafter, being illustrated to term used in the present invention.
The term hygroscopic agent being used in the present invention includes using objects such as the interface of hygroscopic agent and Van der Waals fors Reason or chemical bonding carry out adsorption moisture, the not changed water adsorption substance of the ingredient of substance and pass through due to adsorption moisture Chemical reaction adsorption moisture and the moisture absorption substance for becoming novel substance.
While organic electronic device of the invention adhesive film passes through barrier oxygen, impurity, moisture, infiltration is effectively removed Moisture so as to significantly prevent moisture from reaching organic electronic device, therefore is remarkably improved service life of organic electronic device and resistance to Long property.Also, while the producible splitting phenomenon when removing moisture removal will not occur, with outstanding moisture-proof and resistance to It is hot.
Detailed description of the invention
Fig. 1 and Fig. 2 is cuing open for the organic electronic device adhesive film used for packing material of a preferably embodiment according to the present invention View.
Fig. 3 and Fig. 4 is the diagrammatic cross-section of the preferably luminaire of an embodiment according to the present invention.
Specific embodiment
It is general so as to the technical field of the invention hereinafter, the embodiment of the present invention is described in detail referring to attached drawing Logical technical staff is readily able to implement.The present invention can be realized by a variety of different forms, be not limited to described herein Embodiment.Part unrelated to the invention is omitted in order to clearly state the present invention in the accompanying drawings, it is right throughout the specification Identical appended drawing reference is added in same or similar structural element.
Specifically, Fig. 1 is the organic electronic device adhesive film used for packing material of a preferably embodiment according to the present invention Cross-sectional view, organic electronic device of the invention adhesive film 10 used for packing material include adhesive layer 15, may also include base material film 13, 14, such as it is formed in the top of adhesive layer 15 and/or the release film of lower part.Base material film plays support and protection organic electronic device envelope The effect of package material adhesive film 10.
Adhesive layer 15 can be formed by the inclusion of hybrid resin 15b, tackifier and hygroscopic agent 15a.
Firstly, hybrid resin 15b may include the first binding resin and the second binding resin, it can be with the weight of 1:0.1~10 Than preferably including the weight ratio of 1:1~9 comprising the first binding resin and the second binding resin, more preferably comprising 1:1.1~ 5 weight ratio.If the weight ratio of the first binding resin and the second binding resin is less than 1:0.1, reliability decrease may occur The problem of, if weight ratio is greater than 1:10, the problem of adhesive layer elastic force declines may occur.
First binding resin may include the random copolymer that ethylene, propylene and diolefinic compounds are carried out with combined polymerization.This When, random copolymerization, the weight of preferred 1:0.5~1.2 may be carried out to ethylene and propylene with the weight ratio of 1:0.3~1.4 Than.If the ethylene of combined polymerization and the weight ratio of propylene are less than 1:0.3, can lead to based on modulus and the increased panel bonding of hardness Property it is bad, and there is the problem of causing physical property under adhesion and low temperature with substrate to decline, thereby increases and it is possible to be unfavorable for based on elasticity Modulus decline hygroscopic agent volume expansion, if more than 1:1.4, then can lead to based on modulus and hardness decline panel it is sagging, and The decline of mechanical properties leads to the decline of the mechanical properties of product, and high filling difficulty and reliability based on hygroscopic agent can occur The problem of decline.
Also, there is the random copolymer total weight of ethylene, propylene and diolefinic compounds relative to combined polymerization, comprising 2~ The diolefinic compounds of 15 weight percent preferably may include 7~11 weight percent.If the diolefinic compounds Less than 2 weight percent, then can lead to based on low curing rate and cured density and the sagging problem of the panel of modulus decline, and Heat resistance may decline, and due to the hygroscopic agent volume expansion based on flexibility decrease, it may occur however that phenomenon be tilted with substrate, if greatly In 15 weight percent, causes wetting insufficient based on high solidification density and generate the phase between the decline of the adhesion of substrate, resin Capacitive decline, the panel adhesiveness based on high-modulus decline problem, and can lead to the yellowing based on heat.
The weight average molecular weight of first binding resin is 30000~1550000, and preferred weight average molecular weight can be 40000 ~1500000.If the weight average molecular weight of the first binding resin is less than 30000, it may occur however that gelling rate and modulus is followed to decline Panel sagging problem, heat resistance may decline, and as the fillibility of hygroscopic agent declines, reliability may decline, and mechanical properties It may decline.If also, weight average molecular weight be greater than 1550000, be potentially based on wettability decline and under the adhesion of substrate Drop, and as gel fraction and modulus increase, the adhesiveness of panel may be declined.
Second binding resin may include the compound indicated by following chemical formula 1.
Chemical formula 1
In the chemical formula 1, R1For the branched chain type alkenyl of hydrogen atom, the straight chain type alkenyl of C3~C10 or C4~C10, Preferred R1It can be the branched chain type alkenyl of hydrogen atom, the straight chain type alkenyl of C4~C8 or C4~C8.
The R of chemical formula 11For the branched chain type alkenyl of hydrogen atom, the straight chain type alkenyl of C3~C10 or C4~C10, reliability can Energy can be more excellent.
Also, in the chemical formula 1, n is the rational that weight average molecular weight meets 30000~1550000, preferably may be used Think the rational that weight average molecular weight meets 40000~1500000.If weight average molecular weight less than 30000, can be based on The panel sagging of modulus decline, and heat resistance may decline, as the fillibility of hygroscopic agent declines, reliability may under Drop, and mechanical properties may decline, thereby increases and it is possible to the hygroscopic agent volume expansion based on flexibility decrease occurs and tilts phenomenon with substrate. If also, weight average molecular weight is greater than 1550000, because wettability declines, may decline with the adhesion of substrate, and with modulus Increase, the adhesiveness of panel may be declined.
Then, tackifier can include the bonding for being typically used as organic electronic device adhesive film used for packing material without restriction Resin preferably may include selected from hydrogenated petroleum resin, hydrogenated rosin resin, hydrogenated rosin ester resin, hydrogenated terpene resin, hydrogen Change one or more of terpene phenolic resin, polymeric rosin resin and polymeric rosin ester resin.
It may include the increasing included in adhesive layer 15 of 50~300 parts by weight relative to the hybrid resin 15b of 100 parts by weight Stick, preferably 80~280 parts by weight of packet.If tackifier are less than 50 parts by weight, then relative to the hybrid resin of 100 parts by weight The bad problem of moisture-proof can occur, if tackifier are greater than 300 parts by weight, the flexibility decrease based on adhesive layer can occur (easily Broken (Brittle)) durability and moisture-proof decline the problem of.
Then, hygroscopic agent 15a can include the encapsulating material of the encapsulation commonly used in organic electronic device without restriction, excellent Selection of land may include that the hygroscopic agent, metal salt and metal containing zeolite, titanium dioxide, zirconium oxide or montmorillonite etc. as ingredient aoxidize One or more of object, more preferably may include metal oxide, more preferably may include the calcium oxide in metal oxide (CaO)。
Metal oxide may include metal oxide, such as silica (SiO2), aluminium oxide (Al2O3), lithia (Li2O), sodium oxide molybdena (Na2O), barium monoxide (BaO), calcium oxide (CaO) or magnesia (MgO), organo metallic oxide and five oxygen Change two phosphorus (P2O5One or more of).
Metal salt may include sulfate, such as lithium sulfate (Li2SO4), sodium sulphate (Na2SO4), calcium sulfate (CaSO4), magnesium sulfate (MgSO4), cobaltous sulfate (CoSO4), gallium sulfate (Ga2(SO4)3), titanium sulfate (Ti (SO4)2) or nickel sulfate (NiSO4), metal halide Object, such as calcium chloride (CaCl2), magnesium chloride (MgCl2), strontium chloride (SrCl2), yttrium chloride (YCl3), copper chloride (CuCl2), fluorination Caesium (CsF), fluorination tantalum (TaF5), fluorination niobium (NbF5), lithium bromide (LiBr), calcium bromide (CaBr2), cesium bromide (CeBr3), bromine Change selenium (SeBr4), bromination vanadium (VBr3), magnesium bromide (MgBr2), barium iodide (BaI2) or magnesium iodide (MgI2) and metal chlorate, Such as barium perchlorate (Ba (ClO4)2) or magnesium perchlorate (Mg (ClO4)2One or more of).
Preferably, the purity of hygroscopic agent 15a is 95% or more.In the case where purity is less than 95%, not only moisture absorption Function reduction, and the substance for being included in hygroscopic agent plays the role of impurity and may cause the bad of adhesive film, it is also possible to shadow Organic electronic device is rung, but not limited to this.
Relative to the hybrid resin 15b of 100 parts by weight, the moisture absorption included in adhesive layer 15 comprising 10~550 parts by weight Agent 15a preferably may include 20~520 parts by weight.If hygroscopic agent is less than 10 weight relative to the hybrid resin of 100 parts by weight Part, then because the durability of organic electronic device declines, and moisture removal significant effect decline etc., and cannot achieve the viscous of institute's purpose Conjunctiva, if hygroscopic agent be greater than 550 parts by weight, because wettability deficiency due to the adhesion force of adhesive film and organic electronic device, bonding The Poor cohesions such as power lead to the reliability decrease of organic electronic device, with when moisture absorption based on excessive volume expansion and The problem of tilting phenomenon, the lost of life of organic electronic device can occur occurs.
On the other hand, adhesive layer 15 of the invention also may include one or more of curing agent and uv initiator.
It include 2 relative to the hybrid resin of 100 parts by weight when including curing agent in adhesive layer 15 of the invention The curing agent of~50 parts by weight preferably may include 5~40 parts by weight.If in the case where comprising the curing agent less than 2 parts by weight, It then can not be achieved the gel fraction and modulus of institute's purpose, it may occur however that the problem of elastic force declines, comprising being greater than 50 parts by weight In the case where, since panel Poor cohesion may occur for high modulus and hardness, the adhesion decline based on wettability decline is asked Topic.
Curing agent can include the substance that usually can be used as curing agent without restriction, preferably may include that can be handed over by playing The substance that connection agent acts on ensuring the sufficient crosslink density of adhesive film, it is further preferred that may include selected from by polyurethane third One or more of the group of olefin(e) acid esters curing agent and acrylic compounds curing agent composition.
Also, the weight average molecular weight of curing agent can be 100~1500, preferred weight average molecular weight can for 200~ 1300.If the weight average molecular weight of curing agent less than 100, based on hardness increase and panel adhesiveness and under the adhesion of substrate Drop and the degasification (Outgas) that unreacted curing agent may occur, if weight average molecular weight is greater than 1500, due to the property of softening (Softness) increase the problem of mechanical properties decline may occur.
In the case where including uv initiator in adhesive layer 15 of the invention, relative to the mixed of 100 parts by weight Resin, the uv initiator comprising 0.1~10 parts by weight preferably may include 0.5~8 parts by weight.If comprising less than 0.1 The uv initiator of parts by weight, it may occur however that the problem of based on ultraviolet curing undesirable poor heat resistance, if comprising being greater than 10 The problem of parts by weight, the then poor heat resistance that possible generation is declined based on cured density.
Uv initiator preferably can may include selected from single without restriction comprising being typically used as uv initiator Acylphosphanes (Mono Acyl Phosphine), double acylphosphanes (Bis Acyl Phosphine), alpha-alcohol ketone (α- Hydroxyketone), α-amido ketone (α-Aminoketone), acetaldehyde acid phenenyl ester (Phenylglyoxylate), benzyl diformazan One or more of base ketal (Benzyldimethyl-ketal).
On the other hand, the viscosity including the adhesive layer 15 in organic electronic device adhesive film 10 used for packing material of the invention For 100000~300000 Pa Secs (50 DEG C), preferred viscosity can be 120000~280000 Pa Secs (50 DEG C).If viscous Less than 100000 Pa Secs of the viscosity (50 DEG C) of layer 15 is tied, then as adhesiveness (Tack) increases, process is deteriorated, to occur The problem of release film can not be removed, can as adhesiveness (Tack) declines if viscosity is greater than 300000 Pa Secs (50 DEG C) The problem of declining with the adhesion of substrate can occur.
Viscosity can be the viscosity measured by common viscosity measurement, preferably with 800~900 μm of thick layer Sample is placed on plate and can by folded sample after the round punching of the diameter of 8mm using viscosimetric analysis equipment (ARES-G2, TA) With measurement.At this point, determination condition can strain (strain) 5%, the axial force (Axial Force) of 0.05N, 0.005N Sensitivity (Sensitivity), 1rad/ seconds, be measured at a temperature of -5 DEG C~130 DEG C, with the axial direction of 0.5N before measurement After the sensitivity of power, 0.05N is spaced (gap) adjustment and sample stabilisation, it can be measured by the condition, but and unlimited Due to this.
On the other hand, it in the case where being equipped with adhesive layer 15 of single layer structure, is encapsulated in organic electronic device of the invention For material in adhesive film 10, the glass adhesion according to the measurement of following measuring methods 1 is 1500gf/25mm or more, preferably may be used Think 1600gf/25mm or more.
Measuring method 1
Adhesion measurement adhesive tape (7475, TESA) is laminated on adhesive film by hand pressure roller (2Kg Hand Roller) Portion face, after sample is cut with width 25mm and length 120mm, 80 DEG C at a temperature of adhesive film bottom surfaces are laminated to glass Afterwards, ready sample is placed 30 minutes at normal temperature, and with 300mm/ minutes velocity determination glass adhesions.
Also, in the case where being equipped with adhesive layer 15 of single layer structure, in organic electronic device encapsulating material of the invention With in adhesive film 10, the metal adhesion according to the measurement of following measuring methods 2 is 1000gf/25mm or more, be can preferably be 1100gf/25mm or more.
Measuring method 2
80 DEG C at a temperature of adhesive film upper side is laminated to 80 μm thickness nickel alloy, pass through hand pressure roller (2Kg Hand Roller) by adhesion measurement adhesive tape (7475, TESA) be laminated to adhesive film bottom surfaces, by sample with wide 25mm and length After 120mm is cut, the sample prepared is placed 30 minutes at normal temperature, and is sticked together with 300mm/ minutes velocity determination metals Power.
When meeting the range according to the adhesion of the measuring method 1 and the measurement of measuring method 2, it is suitable for Organic Electricity When sub- equipment, the removing of adhesive film may be remarkably decreased.
On the other hand, as shown in Fig. 2, a preferably embodiment according to the present invention, organic electronic device bonding used for packing material Film 10 may include the first adhesive layer 11 and be formed in the first adhesive layer 11 one side the second adhesive layer 12.That is, of the invention is viscous Knot layer as multilayered structure may include the first adhesive layer 11 and be formed in the first adhesive layer 11 one side the second adhesive layer 12.
At this point, organic electronic device of the invention adhesive film 10 used for packing material may also include base material film 14, such as it is formed in The release film of first adhesive layer, 11 bottom surfaces, and may also include base material film 13, be such as formed in 12 upper side of the second adhesive layer from Type film.
First adhesive layer 11 is the layer being directly in contact with organic electronic device (not shown), can be by the inclusion of the first mixing Resin 11b, tackifier and the first hygroscopic agent 11a are formed.At this point, the first hybrid resin 11b may include the first binding resin and Second binding resin, tackifier may include the first tackifier, also may include the second tackifier.
Second adhesive layer 12 may include the second hybrid resin 12b, tackifier and the second hygroscopic agent 12a.At this point, the second mixing Resin 12b may include the first binding resin and the second binding resin, and tackifier also may include the first tackifier.
Firstly, being illustrated to the first adhesive layer 11.
First hybrid resin 11b of the first adhesive layer may include the first binding resin and the second binding resin, the first bonding Resin and the second binding resin may include the first binding resin and the second binding resin with hybrid resin 15b (Fig. 1) above-mentioned Identical substance.
The first binding resin and the second binding resin with the weight ratio of 1:0.1~10 comprising the first hybrid resin 11b, it is excellent Selection of land includes the weight ratio of 1:1~9, more preferably may include the weight ratio of 1:1.1~5.If the first binding resin and second viscous The problem of weight ratio of knot resin is less than 1:0.1, then reliability decrease may occur may hair if weight ratio is greater than 1:10 The problem of elastic force decline of raw adhesive layer.
The tackifier of first adhesive layer 11 may include the first tackifier, also may include the second tackifier.First tackifier and Second tackifier can include the tackifier for being typically used in organic electronic device adhesive film used for packing material without restriction, preferably Ground may include the tackifier that can be improved reliability, more preferably may include selected from hydrogenated petroleum resin, hydrogenated rosin resin, hydrogen Change one in rosin ester resin, hydrogenated terpene resin, hydriding terpene phenolic resin, polymeric rosin resin and polymeric rosin ester resin Kind or more, it more preferably may include the different hydrogenated petroleum resin of softening point.As an example, in the hydrogen different comprising softening point In the case where fossil oleoresin, the softening point of the first tackifier is smaller than the softening point of the second tackifier, and but not limited to this.
The first tackifier and the second tackifier of first adhesive layer 11 include hydrogenated petroleum resin, when the first tackifier use When hydrogenated petroleum resin comprising the softening point less than the second tackifier, the non-hydrogenated petroleum tree of the weight ratio comprising 1:0.5~1.5 Rouge preferably may include the weight ratio of 1:0.6~1.4.If the weight ratio of the first tackifier and the second tackifier is less than 1:0.5, The problem of decline of heat-resisting maintenance energy may then occur, may since adhesive wettability declines if weight ratio is greater than 1:1.5 The problem of adhesion decline occurs.
First hybrid resin 11b of the first adhesive layer 11 relative to 100 parts by weight, comprising 50~300 parts by weight The tackifier of one adhesive layer 11 preferably may include 80~280 parts by weight.If relative to the first hybrid resin of 100 parts by weight, Comprising the tackifier less than 50 parts by weight, then the problem of moisture-proof is deteriorated may occur, if including the thickening for being greater than 300 parts by weight The problem of agent, the then possible durability that the flexibility decrease (Brittle) based on the first adhesive layer occurs and moisture-proof decline.
The BET specific surface area of first hygroscopic agent 11a of the first adhesive layer 11 is 2~20m2/ g, preferred BET specific surface area For 3~14m2/ g, preferred BET specific surface area can be 4~8m2/g.Specific surface area is measured using BET method, specifically Ground, in pipe add 1g the first hygroscopic agent of sample and -195 DEG C at a temperature of using ASAP2020 (Micromeritics, the U.S.) is measured, without carrying out pre-treatment.It, can be by measuring three times for identical sample To obtain average value.If the BET specific surface area of the first hygroscopic agent 11a is greater than 20m2/ g, not only and under the adhesion of substrate Drop, and the decline of resin flowing (resin flow) is brought, so as to cause Poor cohesion.Also, in rough surface or more The problem of in the case where permeability, BET specific surface area is possible to become larger, and panel breakage may occur due to rough surface.Therefore, originally First hygroscopic agent of invention has low BET specific surface area, so as to high spherical rate.
First hygroscopic agent 11a can include the substance that usually can be used as hygroscopic agent without restriction, and dioxy preferably can be used SiClx.When using silica as the first hygroscopic agent 11a, moisture removal excellent performance, and organic electronic device can be prevented With the separation of encapsulating material, and the durability of organic electronic device can be dramatically increased.
First hybrid resin 11b of the first adhesive layer 11 relative to 100 parts by weight, first comprising 1~40 parts by weight First hygroscopic agent 11a of adhesive layer 11, preferably may include 5~35 parts by weight.If including the first hygroscopic agent less than 1 parts by weight Moisture removal effect in the case where 11a, by being unable to reach in the first adhesive layer of purpose, it is thus possible to which there are Organic Electricities The problem of durability decline of sub- equipment, comprising being greater than 40 parts by weight, since wettability is insufficient, and adhesive film The Poor cohesions such as adhesion force, cohesive force between organic electronic device, it is understood that there may be the reliability decrease of organic electronic device The problem of.
On the other hand, the first adhesive layer 11 of the invention also may include one of curing agent and uv initiator with On.
When including curing agent in the first adhesive layer 11 of the invention, relative to the first hybrid resin of 100 parts by weight, Curing agent comprising 2~30 parts by weight preferably may include 5~25 parts by weight.If the feelings comprising the curing agent less than 2 parts by weight Under condition, it is impossible to reach the gel fraction and modulus of institute's purpose, it may occur however that the problem of elastic force declines, comprising being greater than 30 weight Part in the case where, due to high modulus and hardness may occur panel Poor cohesion, based on wettability adhesion strength decline ask Topic.
Curing agent can include the substance that usually can be used as curing agent without restriction, preferably may include that can be handed over by playing The substance for acting on ensuring the sufficient crosslink density of adhesive film of connection agent, more preferably may include selected from by polyurethane acroleic acid One or more of the group of esters curing agent and acrylic compounds curing agent composition.
Also, the weight average molecular weight of curing agent can be 100~1500, preferably weight average molecular weight can for 200~ 1300.If the weight average molecular weight of curing agent less than 100, adhesiveness based on the increased panel of hardness and with the adhesion of substrate Decline and the degasification problem that unreacted curing agent may occur, if weight average molecular weight is greater than 1500, since property of softening increase can The problem of mechanical properties decline can occur.
The first mixing when in the first adhesive layer 11 of the invention including uv initiator, relative to 100 parts by weight Resin, the uv initiator comprising 0.1~5 parts by weight preferably may include 0.5~4 parts by weight.If comprising less than 0.1 weight Measure the uv initiator of part, it may occur however that the problem of based on ultraviolet curing undesirable poor heat resistance, if comprising being greater than 5 weight The problem of part, the then poor heat resistance that possible generation is declined based on cured density.
Uv initiator preferably can may include selected from single without restriction comprising being typically used as uv initiator One or more of acylphosphanes, double acylphosphanes, alpha-alcohol ketone, α-amido ketone, acetaldehyde acid phenenyl ester, benzyl dimethyl ketal.
On the other hand, including the first adhesive layer 11 in organic electronic device adhesive film 10 used for packing material of the invention Viscosity is 150000 Pa Secs (50 DEG C) hereinafter, preferred viscosity can be 10000~130000 Pa Secs (50 DEG C).If first The viscosity of adhesive layer 11 is greater than 150000 Pa Secs (50 DEG C), then as adhesiveness increases, it may occur however that the adhesion with substrate The problem of decline.
Viscosity can be the viscosity measured by common viscosity measurement, preferably with 800~900 μm of thick layer Sample is placed on plate and can by folded sample after the round punching of the diameter of 8mm using viscosimetric analysis equipment (ARES-G2, TA) With measurement.At this point, determination condition can be in 5% strain, the axial force of 0.05N, the sensitivity of 0.005N, 1rad/ seconds, -5 DEG C It is measured at a temperature of~130 DEG C, interval adjustment and sample is carried out with the axial force of 0.5N, the sensitivity of 0.05N before measurement After stabilisation, it can be measured by the condition, but not limited to this.
Then, the second adhesive layer 12 of the one side for being formed in the first adhesive layer 11 of the invention is illustrated.
Second hybrid resin 12b of the second adhesive layer 12 may include the first binding resin and the second binding resin, and first is viscous Knot resin and the second binding resin may include setting with the first binding resin of hybrid resin 15b (Fig. 1) above-mentioned and the second bonding The identical substance of rouge.
The first binding resin and the second binding resin with the weight ratio of 1:0.1~10 comprising the second hybrid resin 12b, it is excellent Selection of land includes the weight ratio of 1:1~9, more preferably may include the weight ratio of 1:1.1~5.If the first binding resin and second viscous The problem of weight ratio of knot resin is less than 1:0.1, then reliability decrease may occur may hair if weight ratio is greater than 1:10 The problem of elastic force decline of raw adhesive layer.
The tackifier of second adhesive layer 12 may include the first tackifier.First tackifier can be without restriction comprising usually making For the binding resin of organic electronic device adhesive film, preferably may include selected from hydrogenated petroleum resin, hydrogenated rosin resin, In hydrogenated rosin ester resin, hydrogenated terpene resin, hydriding terpene phenolic resin, polymeric rosin resin and polymeric rosin ester resin More than one.
Second hybrid resin 12b of the second adhesive layer 12 relative to 100 parts by weight, comprising 60~300 parts by weight First tackifier of two adhesive layers 12 preferably may include 90~280 parts by weight.If relative to 100 the second compound trees of parts by weight Rouge, comprising the first tackifier less than 60 parts by weight, then the problem of poor moisture resistance may occur, if comprising being greater than 300 parts by weight The first tackifier, then may occur the flexibility decrease based on the first adhesive layer durability and moisture-proof decline the problem of.
Second hygroscopic agent 12a of the second adhesive layer 12 can be excellent without restriction using the substance that usually can be used as hygroscopic agent It includes zeolite, titanium dioxide, zirconium oxide or montmorillonite etc. as ingredient, metal salt and metal oxide that hygroscopic agent, which can be used, in selection of land One or more of, it more preferably may include metal oxide, more preferably may include the calcium oxide in metal oxide (CaO)。
Metal oxide may include metal oxide, such as silica, aluminium oxide, lithia, sodium oxide molybdena, barium monoxide, oxygen Change calcium or magnesia, organo metallic oxide and phosphorus pentoxide (P2O5One or more of).
Metal salt may include sulfate, such as lithium sulfate, sodium sulphate, calcium sulfate, magnesium sulfate, cobaltous sulfate, gallium sulfate, titanium sulfate Or nickel sulfate, metal halide, such as calcium chloride, magnesium chloride, strontium chloride, yttrium chloride, copper chloride, cesium fluoride, fluorination tantalum, fluorination Niobium, lithium bromide, calcium bromide, cesium bromide, selenium bromide, bromination vanadium, magnesium bromide, barium iodide or magnesium iodide and metal chlorate are such as high One or more of barium chlorate or magnesium perchlorate.
Preferably, the purity of the second hygroscopic agent 12a is 95% or more.In the case where purity is less than 95%, not only moisture Absorption function decline, and the substance for being included in hygroscopic agent plays the role of impurity and may cause the bad of adhesive film, also may be used Organic electronic device can be influenced, but not limited to this.
Second hybrid resin 12b of the second adhesive layer 12 relative to 100 parts by weight, comprising 50~450 parts by weight Second hygroscopic agent 12a of two adhesive layers 12, preferably may include 70~430 parts by weight.If including second less than 50 parts by weight In the case where hygroscopic agent 12a, then it can not be achieved the adhesive film of institute's purpose there may be moisture removal significant effect decline etc. Problem, comprising being greater than 450 parts by weight, then the caking property of the second adhesive layer 12 is remarkably decreased, and absorbs moisture When due to volume expansion it is excessive, include that the first adhesive layer 11 and the second adhesive layer 12 and/or second are viscous in organic electronic device The adhesive layer for tying layer 12 and the first adhesive layer 11 tilts, and moisture penetrates between it rapidly, shortens Organic Electricity so as to exist The problem of service life of sub- equipment.
On the other hand, the shape of the second hygroscopic agent 12a of the second adhesive layer 12 or partial size are unrestricted, however, it is preferred to, For the raising dispersibility in the second adhesive layer, it can be achieved that average grain diameter is the spherical shape of 5nm~8 μm, can preferably realize average Partial size is the spherical shape of 10nm~6 μm.Be conducive to have the function of as a result, to carry out adhesive film while the moisture removal of institute's purpose thin Membranization.
On the other hand, the second adhesive layer 12 of the invention also may include one of curing agent and uv initiator with On.
It include 10~40 relative to 100 the second hybrid resins of parts by weight when including curing agent in the second adhesive layer 12 The curing agent of parts by weight preferably may include 12~35 parts by weight.If in the case where comprising the curing agent less than 10 parts by weight, no The gel fraction and modulus of institute's purpose can be able to achieve, thereby increases and it is possible to the problem of elastic force decline occurs, comprising being greater than 40 parts by weight In the case of, due to high modulus and hardness, it may occur however that panel Poor cohesion, the adhesion decline based on wettability decline are asked Topic.
Curing agent can include the substance that usually can be used as curing agent without restriction, preferably may include that can be handed over by playing The substance that connection agent acts on ensuring the sufficient crosslink density of adhesive film, it is further preferred that may include selected from by polyurethane third One or more of the group of olefin(e) acid esters curing agent and acrylic compounds curing agent composition.
Also, the weight average molecular weight of curing agent can be 100~1500, preferred weight average molecular weight can for 200~ 1300.If the weight average molecular weight of curing agent less than 100, based on hardness increase and panel adhesiveness and under the adhesion of substrate Drop and the degasification that unreacted curing agent may occur, if weight average molecular weight is greater than 1500, since property of softening increase may occur The problem of mechanical properties decline.
When including uv initiator in the second adhesive layer 12 of the invention, second relative to 100 parts by weight is mixed Resin, the uv initiator comprising 0.1~8 parts by weight preferably may include 0.5~6 parts by weight.If comprising less than 0.1 The problem of uv initiator of parts by weight, then poor heat resistance undesirable based on ultraviolet curing occurs for possibility, if comprising being greater than 8 The problem of parts by weight, the then poor heat resistance that possible generation is declined based on cured density.
Uv initiator preferably can may include selected from single without restriction comprising being typically used as uv initiator One or more of acylphosphanes, double acylphosphanes, alpha-alcohol ketone, α-amido ketone, acetaldehyde acid phenenyl ester, benzyl dimethyl ketal.
On the other hand, including the second adhesive layer 12 in organic electronic device adhesive film 10 used for packing material of the invention Viscosity is 200000 Pa Secs (50 DEG C) or more, and preferred viscosity can be 220000~1000000 Pa Secs (50 DEG C).If the Less than 200000 Pa Secs of the viscosity of two adhesive layers 12 (50 DEG C), then as caking property declines, it may occur however that with sticking together for substrate The problem of power declines.
Viscosity can be the viscosity measured by common viscosity measurement, preferably with 800~900 μm of thick layer Sample is placed on plate and can by folded sample after the round punching of the diameter of 8mm using viscosimetric analysis equipment (ARES-G2, TA) With measurement.At this point, determination condition can be in 5% strain, the axial force of 0.05N, the sensitivity of 0.005N, 1rad/ seconds, -5 DEG C It is measured at a temperature of~130 DEG C, interval adjustment and sample is carried out with the axial force of 0.5N, the sensitivity of 0.05N before measurement After stabilisation, it can be measured by the condition, but not limited to this.
On the other hand, it is being equipped with the adhesive layer for including the case where the multilayered structure of the first adhesive layer 11 and the second adhesive layer 12 Under, in organic electronic device adhesive film 10 used for packing material of the invention, it is according to the adhesion that following measuring methods 1 measure 1500gf/25mm or more can preferably be 1600gf/25mm or more.
Measuring method 1
Adhesion measurement adhesive tape (7475, TESA) is laminated on adhesive film by hand pressure roller (2Kg Hand Roller) Portion face, after sample is cut with width 25mm and length 120mm, 80 DEG C at a temperature of adhesive film bottom surfaces are laminated to glass Afterwards, ready sample is placed 30 minutes at normal temperature, and with 300mm/ minutes velocity determination glass adhesions.
Also, in the case where being equipped with the adhesive layer of the multilayered structure including the first adhesive layer 11 and the second adhesive layer 12, In organic electronic device adhesive film 10 used for packing material of the invention, according to the metal adhesion of following measuring methods 2 measurement For 1000gf/25mm or more, 1100gf/25mm or more can preferably be.
Measuring method 2
80 DEG C at a temperature of adhesive film upper side is laminated to 80 μm thickness nickel alloy, pass through hand pressure roller (2Kg Hand Roller) adhesion measurement adhesive tape (7475, TESA) is laminated to adhesive film bottom surfaces, by sample with width 25mm and After length 120mm is cut, the sample prepared is placed 30 minutes at normal temperature, and with 300mm/ minutes velocity determination metals Adhesion.
When meeting the range according to the adhesion of the measuring method 1 and the measurement of measuring method 2, it is suitable for Organic Electricity When sub- equipment, the removing of adhesive film may be remarkably decreased.
On the other hand, in adhesive layer 15 including the first adhesive layer 11 and the second adhesive layer including the single layer structure In the case where the adhesive layer of the multilayered structure of 12 structure, since size or thickness equal-specification can be different according to purpose, The present invention is not particularly limited to this.
Also, the adhesive layer 15 of single layer structure, multilayered structure including the first adhesive layer 11 and the second adhesive layer 12 is viscous Tying layer can be the adhesive layer of drying regime or the adhesive layer of solid state.
On the other hand, as described above, when adhesive layer of the invention including the first adhesive layer 11 and is formed in the first adhesive layer In the case where second adhesive layer 12 of 11 one side, the first adhesive layer 11 is 8.4 according to the calculated measured value of following mathematical expressions 1 ~15.8%, it is therefore preferable to 9.68~14.52%, it more preferably can be 10.89~13.31%.If the first adhesive layer 11 According to the measured value of mathematical expression 1 less than 8.4%, then since heat resistance is deteriorated, it may occur however that resin overflow (resin over Flow), if more than 15.8%, then the problem of declining with the adhesion of substrate (glass, metal etc.) may occur.
Mathematical expression 1
Measured value (%)=100 × S2/S1
S1To utilize advanced Rheometric Expansion System in stress relaxation in the state of preparing adhesive layer with 600 μm of thickness Under mode by using the parallel-plate that diameter is 8mm 85 DEG C at a temperature of be applicable in the vertical force of 200gf, to the adhesive film Apply the maximum stress value measured when 30% strain, S2To keep 180 in the state of applying the strain to the adhesive film The stress value measured after second.
It also, is 1~20%, preferred 7.32 in the measured value according to mathematical expression 1 of the second adhesive layer 12 of the invention ~10.98%, it more preferably can be 8.23~10.07%.If the measured value according to mathematical expression more than 1 of the second adhesive layer 12 is small In 1%, then since heat resistance is deteriorated, it may occur however that resin overflow may then occur and substrate (glass, metal if more than 20% Deng) adhesion decline the problem of.
Also, the deviation of the measured value according to mathematical expression 1 of the first adhesive layer 11 and the second adhesive layer 12 of the invention is 11.6% or less, it is therefore preferable to 0.39~6.29%, it more preferably can be 2.36~3.54%.If deviation is greater than 11.6%, The problem of reliability decrease of contraction and/or expansion based on adhesive layer may then occur in thermal process.
Also, as described above, when adhesive layer of the invention includes the first adhesive layer 11 and is formed in the first adhesive layer 11 When the second adhesive layer 12 on one side, the first adhesive layer 11 25 DEG C at a temperature of can have (210~390) × 103The stretching of Pa Elasticity modulus preferably has (240~360) × 103The tensile modulus of elasticity of Pa, can more preferably have (270~330) × 103The tensile modulus of elasticity of Pa.If the tensile modulus of elasticity of the first adhesive layer 11 is less than 210 × 103Pa may then occur durable Property decline the problem of, if more than 390 × 103Pa, then due to the volume expansion of moisture reacted, it may occur however that with substrate The tilting of (glass, metal etc.) and/or the problem of crack.
Also, the second adhesive layer 12 25 DEG C at a temperature of have (1400~2600) × 103The tensile modulus of elasticity of Pa, Preferably there are (1600~2400) × 103The tensile modulus of elasticity of Pa can more preferably have (1800~2200) × 103Pa Tensile modulus of elasticity.If the tensile modulus of elasticity of the second adhesive layer 12 is less than 1400 × 103Pa may then occur under durability The problem of drop, if more than 2600 × 103Pa may then occur the tilting with substrate (glass, metal etc.) and/or crack The problem of.
Also, the first adhesive layer 11 and the second adhesive layer 12 of the invention 25 DEG C at a temperature of tensile modulus of elasticity Deviation is 2390 × 103Pa or less, it is therefore preferable to 1010 × 103~2040 × 103Pa more preferably can be 1530 × 103~ 1870×103Pa.If deviation is greater than 2390 × 103Pa may cause the broken of part film due to the contraction and/or expansion of adhesive layer It splits and crackle.
Further, adhesive layer of the invention can be all satisfied following conditions (1) and condition (2).
As condition (1),It can preferably be
Also, as condition (2),It can preferably be
In the condition (1), a1And a2For respectively 25 DEG C at a temperature of storage elastic modulus (Pa) and loss resilience Modulus (Pa), b1And b2For respectively 50 DEG C at a temperature of storage elastic modulus (Pa) and loss elastic modulus (Pa).
If in the condition (1)Less than 5.28, then as panel sagging occurs, it may occur however that can not The problem of preventing volume expansion, if more than 7.16, then with based on external impact buffering effect decline, durability may under Drop.
If also, in the condition (2)Less than 4.22, then act in an unreasonable way overflow (Over in bonding process Flow), it is possible to create bubble and/or reliability decrease, can then due to that can not make up the difference in height of panel if more than 5.6 Adhesion decline and/or splitting phenomenon can occur.
Also, adhesive layer of the invention can meet following conditions (3).
As condition (3),It can preferably be
In the condition (3), c1And c2For respectively 100 DEG C at a temperature of storage elastic modulus (Pa) and loss bullet Property modulus (Pa).
If in the condition (3)Less than 3.46, then due to the mobility of binder, it may occur however that heat resistance If more than 5.02 may then occur for the problem of decline the problem of declining based on the insufficient adhesion decline of wettability and heat resistance.
It is 7 × 10 in 25 DEG C of at a temperature of storage elastic modulus also, to make adhesive layer of the invention meet condition (1)6 ~1.5 × 108Pa can preferably be 8 × 106~1 × 108Pa is 10 in 25 DEG C of at a temperature of loss elastic modulus7~2 × 108Pa can preferably be 1.2 × 107~1.5 × 108Pa.If 25 DEG C at a temperature of storage elastic modulus less than 7 × 106Pa, then with the generation of panel sagging, it may occur however that the problem of volume expansion can not be prevented, if more than 1.5 × 108Pa, then as the buffering effect based on external impact declines, durability may decline.If also, 25 DEG C at a temperature of damage Elasticity modulus is lost less than 107Pa, then with the generation of panel sagging, it may occur however that the problem of volume expansion can not be prevented, If more than 2 × 108Pa then declines with the buffering effect based on external impact, and durability may decline.
It is 10 in 50 DEG C of at a temperature of storage elastic modulus also, to make adhesive layer of the invention meet condition (2)6~ 1.5×107Pa can preferably be 1.2 × 106~9 × 106Pa is 8 × 10 in 50 DEG C of at a temperature of loss elastic modulus5~ 1.5×107Pa can preferably be 9 × 105~1 × 107Pa.If storage elastic modulus is less than 10 at 50 °C6Pa, then With overflow occurs in bonding process, it is possible to create bubble and/or reliability decrease, if more than 1.5 × 107Pa, then with The difference in height of panel can not be made up, it may occur however that adhesion decline and/or splitting phenomenon.If also, in 50 DEG C of temperature Lower loss elastic modulus is less than 8 × 105Pa, then with overflow occurs in bonding process, it is possible to create bubble and/or reliability Decline, if more than 1.5 × 107Pa, then with the difference in height that can not make up panel, it may occur however that adhesion decline and/or interlayer Peeling.
Also, to make adhesive layer of the invention meet condition (3), 100 DEG C of at a temperature of storage elastic modulus be 2 × 105~8 × 106Pa can preferably be 3 × 105~6 × 106Pa is 5 × 10 in 100 DEG C of at a temperature of loss elastic modulus4 ~2 × 106Pa can preferably be 6 × 104~1.5 × 106Pa.If 100 DEG C at a temperature of storage elastic modulus less than 2 × 105Pa, then due to the mobility of binder, it may occur however that the problem of heat resistance declines, if more than 8 × 106Pa may then occur The problem of being declined based on the insufficient adhesion decline of wettability and heat resistance.If also, in 100 DEG C of at a temperature of loss resilience mould Amount is less than 5 × 104Pa, then due to the mobility of binder, it may occur however that the problem of heat resistance declines, if more than 2 × 106Pa is then The problem of declining based on the insufficient adhesion decline of wettability and heat resistance may occur.
On the other hand, the gel fraction (gel content) according to the measurement of following mathematical expressions 2 of adhesive layer of the invention is 45 ~95%, it can preferably be 50~90%.
Mathematical expression 2:
In the mathematical expression 2, dry bonding layer weight refers to the cross of 100mm × 25mm × perpendicular cutting adhesive layer, After being put into the adhesive layer of cutting in the bottle of the toluene equipped with 5g and placing 15 minutes, adhesive layer is filtered with filter, is passed through 160 DEG C at a temperature of heated-air drying filtering adhesive layer 30 minutes completely remove the weight measured after toluene.
If less than 45%, panel sagging occurs for the gel fraction of the adhesive layer, it is impossible to prevent from causing because of moisture Expansion, in bonding process occur overflow there may be bubble and/or reliability decreases, due to the flowing of binder Property, it may occur however that the problem of heat resistance declines.If also, the gel fraction of the adhesive layer is greater than 95%, with based on outside The buffering effect of impact declines, and durability may decline, and with the difference in height for not making up panel, it may occur however that under adhesion Drop and/or splitting phenomenon, due to wettability deficiency, possible the problem of adhesion decline and heat-resisting decline occurs.
Further, adhesive layer of the invention can be all satisfied following conditions (4) and condition (5), so as to solve institute as above The problem of stating.
As condition (4),It can preferably beAs condition (5),It can preferably be
But the d indicates that the thickness (μm) of adhesive layer, the e indicate the average grain diameter (μm) of hygroscopic agent.
If according in the condition (4)Less than 8, then the bonding of organic electronic device adhesive film used for packing material Property may decline, thereby increases and it is possible to occur the tie layer surface prominent hygroscopic agent the problem of, due to from tie layer surface it is viscous go out moisture absorption Agent, reliability may decline.If also, in the condition (5)Less than 0.01, then may occur viscous out from tie layer surface The problem of hygroscopic agent, reliability and caking property may decline, ifGreater than 0.9, then organic electronic device bonding used for packing material The caking property of film may decline, thereby increases and it is possible to occur the problem of tie layer surface protrudes hygroscopic agent.
At this point, adhesive layer of the invention with a thickness of 8~85 μm, so as to meet the condition (4) and condition (5), preferably Thickness can be 10~80 μm.If the thickness of adhesive layer, less than 8 μm, organic electronic device adhesive film used for packing material glues Knot property may decline, thereby increases and it is possible to occur the problem of tie layer surface protrudes hygroscopic agent, if thickness is greater than 85 μm, may occur The problem of reliability decrease of organic electronic device adhesive film used for packing material.
On the other hand, the present invention includes organic electronic device encapsulating material and luminaire, the organic electronic device It include organic electronic device as described above adhesive film used for packing material with encapsulating material, the luminaire includes described organic Electronic equipment encapsulating material.
The luminaire include substrate, be formed in the substrate at least one side organic electronic device and encapsulation described in The organic electronic device encapsulating material according to the present invention of organic electronic device.
As shown in figure 3, a preferred embodiment according to the present invention, luminaire 100 of the invention can be equipped with containing mixed The adhesive layer 115 of the single layer structure of resin 115b and hygroscopic agent 115a, in preferred another embodiment according to the present invention, such as Shown in Fig. 4, luminaire 100 of the invention can be equipped with the multilayered structure for including the first adhesive layer 111 and the second adhesive layer 112 Adhesive layer, first adhesive layer 111 contain the first hybrid resin 111b and the first hygroscopic agent 111a, include the second compound tree Rouge 112b and the second hygroscopic agent 112a.
Aftermentioned content is illustrated on the basis of the luminaire 100 of the adhesive layer of the multilayered structure equipped with Fig. 4.
Luminaire 100 according to the present invention includes substrate 101, organic electronic device 102, organic electronic device encapsulation Material 111,112, the machine electronic equipment 102 are formed in at least one side of the substrate 101, the organic electronic device envelope Package material 111,112 is formed in 102 top of the substrate 101 and organic electronic device.The organic electronic device package material Material includes: the first adhesive layer 111, includes the first hybrid resin 111b and hygroscopic agent 111a, the first hybrid resin 111b packet Containing the first binding resin and the second binding resin, the hygroscopic agent 111a includes silica;And second adhesive layer 112, shape The one side of first adhesive layer described in Cheng Yu, and include the second hybrid resin 112b and the second adhesive layer 112, second compound tree Rouge 112b includes the first binding resin and the second bonding tree, second adhesive layer 112 include hygroscopic agent 112a.
Preferably, glass substrate, quartz wafer, sapphire substrate, plastic base and flexible can be used in the substrate 101 It is any in flexible polymeric film.
The organic electronic device 102 for being formed in at least one side of the substrate 101 can be formed, in the substrate Film is carried out to lower electrode on 101 and stacks gradually n-type semiconductor layer, active layer, p-type semiconductor layer, top electricity on it It is extremely formed afterwards by etching, or is placed on the substrate 101 and is formed by additional substrate manufacture.It will be this organic Electronic equipment 102 is formed in the specific method on substrate 101 and can be carried out by method well-known in the art, and in the present invention In be not particularly limited to this, the organic electronic device 102 can be Organic Light Emitting Diode.
Then, it is encapsulated including the organic electronic device according to the present invention for encapsulating the organic electronic device 102 The specific method of material 111,112, the encapsulation can be carried out according to well known commonsense method, and not limited especially in the present invention In this.As the non-limiting example to this, used in the organic electronic device 102 being formed on substrate 101 in organic electronic device First adhesive layer 111 of encapsulating material 111,112 can be by using vacuum in the state of directly contacting with organic electronic device 102 Press machine or vacuum laminator etc. execute to apply heat and/or pressure.Also, in order to which the solidification of adhesive layer can apply heat Amount, can be by being moved to further progress in the chamber of irradiation light in the case where the binder comprising binding resin of photocuring Solidification process.
Hereinafter, examples illustrate the present invention by following, at this point, following embodiments be only used for illustrating the present invention and It proposes, invention of the invention is claimed range and is not limited to following embodiments.
Embodiment 1: the manufacture of organic electronic device adhesive film used for packing material
The formation of (1) first adhesive layer
In order to form the first adhesive layer, it is copolymerized with the weight ratio mixing of 1:2.33 by ethylene, propylene and diolefinic compounds Made of random copolymer (the first binding resin) and the compound (the second binding resin) indicated by following chemical formula 1 prepare After first hybrid resin, relative to first hybrid resin of 100 parts by weight, the first tackifier (SU- of 80 parts by weight is put into 90, Cologne industry) and the second tackifier (SU-100, Cologne industry) of 50 parts by weight, 11 parts by weight the weight as curing agent Average molecular weight be 226 acrylic acid (M200, rice source speciality chemical (Miwon Specialty Chemical)), 3 parts by weight Uv initiator (irgacure TPO, Ciba) and 24 parts by weight BET specific surface area be 6m2The silica of/g is laggard Row stirring.
After the completion of stirring, mixture is set to pass through capsule filters come after removing foreign matter, using slot-die coater coated in thickness Then the heavy antistatic abnormal shape polyethylene terephthalate (PET) (RT81AS, SKCHass) that degree is 75 μm utilizes 120 It DEG C is dried and is prepared for the first adhesive layer that final thickness is 20 μm after removing solvent.
By with the copolymerization weight ratio ethylene and propylene monomer of 1:0.85 and relative to random copolymer total weight, with 9 weights Amount percentage is copolymerized diolefinic compounds to be prepared for first binding resin, and the diolefinic compounds are to use ethylidene The random copolymer that the weight average molecular weight of norbornene (ethylidene norbornene) preparation is 500000.
Chemical formula 1
In the chemical formula 1, the R1For isoprene, the n is the weight for meeting the compound indicated by chemical formula 1 The rational of average molecular weight 400000.
The formation of (2) second adhesive layers
In order to form the second adhesive layer, it is copolymerized with the weight ratio mixing of 1:2.33 by ethylene, propylene and diolefinic compounds Made of random copolymer (the first binding resin) and the compound (the second binding resin) indicated by following chemical formula 1 prepare After second hybrid resin, relative to second hybrid resin of 100 parts by weight, the first tackifier of 150 parts by weight are put into (M200, rice source are special for the acrylic acid that the weight average molecular weight as curing agent of (SU-90, Cologne industry), 17 parts by weight is 226 Chemicals), the average grain diameters of the uv initiator (irgacure TPO, Ciba) of 3 parts by weight and 100 parts by weight be 3 μm It is stirred after calcium oxide.
After completing stirring, 20 DEG C at a temperature of viscosity is adjusted to 800cps and to make it through capsule filters different to remove After object, using slot-die coater be coated in a thickness of 38um light removing abnormal shape polyethylene terephthalate (RF02, SKCHass), then it is dried and is removed with 120 DEG C and is prepared for the second adhesive layer that final thickness is 30 μm after solvent.
By with the copolymerization weight ratio ethylene and propylene monomer of 1:0.85 and relative to random copolymer total weight, combined polymerization The diolefinic compounds of 9 weight percent are prepared for first binding resin, and the diolefinic compounds are using sub- second The random copolymer that the weight average molecular weight of base norbornene preparation is 500000.
Chemical formula 1
In the chemical formula 1, the R1For isoprene, the n is the weight for meeting the compound indicated by chemical formula 1 The rational of average molecular weight 400000.
First adhesive layer of the manufacture is bonded in a manner of towards the second adhesive layer and makes it through 70 DEG C of layer Pressure roller has manufactured adhesive film.
Embodiment 2~11 and comparative example 1~8
It manufactures same as Example 1ly, but the weight average molecular weight by changing the first binding resin and the second binding resin, Content, uv initiator content of curing agent etc. manufacture the adhesive film such as following table 1~table 4.
Experimental example 1
For the adhesive film manufactured by the Examples and Comparative Examples, following physical property are measured, such as following table 1 to 5 institute of table Show.
1. the moisture penetration of adhesive film is evaluated
After cutting test piece with the size of 95mm × 95mm, the alkali-free glass of 100mm × 100mm with remove after protective film with After so that test piece is located at and is aligned from the mode of the edge on four sides of alkali-free glass 2.5mm inwardly, using being heated to 65 DEG C Roll laminating is adhered to.After remaining release film in the test piece of removal attachment, the alkali-free glass of another 100mm × 100mm is covered Glass is made without the sample of the bonding of bubble in 65 DEG C of temperature laminated one minute using vacuum laminator.To having bonded At sample be set as 85 DEG C, observing the length of moisture penetration under the reliability chamber that relative humidity is 85% with 1000 hours units Degree.
2. the volume expansion of adhesive film is evaluated
The layer of rolls press removal examination for being heated to about 65 DEG C is utilized in the SUS plate of 50 μm of the thickness cut with 30mm × 20mm Adhered to after the release film of piece.After the test piece of attachment is cut into SUS size using knife, in 40mm × 30mm 0.7T alkali-free Glass is adhered to using the layer of rolls press for being heated to 65 DEG C.Confirmation test piece does not have hole between glass (Glass) and SUS (Void) after bonding is good, be set as 85 DEG C, in the reliability chamber that relative humidity is Figure 85 % to be within 100 hours that interval is observed 1000 hours, by height change on the basis of SUS by the test piece of optical microphotograph sem observation in the position of hygroscopic moisture.
Observation in the case where the height change at moisture moisture absorption position is less than 1 μm with ◎ as a result, indicated, moisture moisture absorption position Height change be 1~less than 3 μm in the case where indicated with zero, the height change at moisture moisture absorption position for 3~feelings less than 5 μm It is indicated under condition with Δ, the height change at moisture moisture absorption position is used in the case where being 5 μm or more × indicated.
3. the Evaluation of Heat Tolerance of adhesive film
With the cutting test piece of 50mm × 80mm size, after the protective film for removing test piece, in the nickel of the 0.08T of 60mm × 150mm In alloy, 80 DEG C, notch be (Gap) be 1mm, speed (Speed) is 1 under conditions of adhered to using layer of rolls press.It goes After the release film (Liner film) of the test piece of the attachment, in the alkali-free glass of the 5T of 30mm × 70mm, 80 DEG C, cut Adhered under conditions of mouth is 1mm, speed is 1 using layer of rolls press.The test piece for being attached to the glass is vertically fixed on After 130 DEG C of chamber (Chamber), the hammer of 1kg is hung up to grasp whether binder (adhesive) is flowing.
At this point, being indicated in the case where evaluation result does not have exception with zero, if using × indicating shaking and making a movement.
4. glass adhesion is evaluated
For the adhesive film manufactured according to Examples and Comparative Examples, adhesion is measured by adhesive tape by the hand pressure roller of 2kg (7475, TESA) are laminated to the upper surface of adhesive film, after sample is cut into width 25mm and length 120mm, in 80 DEG C of temperature It is lower will be laminated to alkali-free glass below adhesive film after, sample is placed at normal temperature 30 minutes, by universal testing machine (UTM) with 300mm/ minutes velocity determination glass adhesions.
5. metal adhesion flat fare
For the adhesive film prepared according to Examples and Comparative Examples, 80 DEG C at a temperature of will be laminated to thickness above adhesive film The nickel alloy that degree is 80 μm, and adhesion measurement adhesive tape (7475, TESA) is laminated to adhesive film in the following, sample is cut into width After spending 25mm and length 120mm, ready sample is placed at normal temperature 30 minutes, by universal testing machine (UTM) with 300mm/ minutes velocity determination glass adhesions.
Experimental example 2
Organic luminescent device (hole transmission layer NPD/ thickness is deposited on the substrate with electro-conductive glass (ITO) pattern 800A, luminescent layer Alq3/ thickness 300A, electron injecting layer LiF/ thickness 10A, cathode Al+Liq/ thickness 1000A) after, it is manufacturing Device in normal temperature layer at all according to the adhesive film of Examples and Comparative Examples after, manufactured the Organic Light Emitting Diode of luminous green (OLED) unit test piece.Then, following evaluation of physical property are carried out for test piece, as shown in table 1 to table 4.
1. pair according to the durability evaluation of the organic luminescent device of the moisture penetration of adhesive film
By test piece be set as 85 DEG C, relative humidity be 85% in the environment of, with × 100 digit microscope with 100 hours Observe pixel shrinkage (Pixel shrinkage) in illumination region hourly and stain (Dark spot) for unit It generates and/or grows, the time required to 50% or more and/or stain generation occur for measurement pixel shrinkage.
At this point, being used in the case where being 1000 or more the time required to pixel shrinkage occurs 50% or more and/or stain generates ◎ is indicated, for less than 1000 hours~800 hours or more the time required to pixel shrinkage occurs 50% or more and/or stain generates In the case where indicated with zero, pixel shrinkage occur 50% or more and/or stain generate the time required to for less than 800 hours~ Indicated in the case where 600 hours or more with Δ, pixel shrinkage occur 50% or more and/or stain generate the time required to for less than 600 it is small in the case of with × indicate.
2. the durability evaluation of adhesive film
By test piece be set as 85 DEG C, relative humidity be 85% reliability chamber in be within 100 hours that spacing observation 1000 is small When, by generating gas in interfacial separation, crackle or the adhesive film between optical microphotograph sem observation organic electronic device and adhesive film It is evaluated whether bubble, bonding interlaminar separation etc. are come to physical damage.Evaluation result, with zero table in the case where no exception Show, used with any one of bubble, bonding interlaminar separation etc. is generated in interfacial separation, crackle or adhesive film × It indicates.
Table 1
Table 2
Table 3
Table 4
Table 5
Such as from table 1 to table 4 it is found that the weight for being all satisfied preferred first binding resin and the second binding resin of the invention is equal Examples 1 to 7, the embodiment 9, embodiment of the content of molecular weight, curing agent, uv initiator content and bonding layer number etc. Even if 10 with miss one of them embodiment 8, embodiment 11,14 phase of embodiment 19, embodiment 22 and 1~comparative example of comparative example Than moisture removal and barrier are effectively that so that moisture penetration length is short, therefore moisture penetration length is short, the volume of adhesive film Expansion almost without, the durability evaluation result of heat resistance and organic luminescent device very well and the durability of adhesive film it is very outstanding, Adhesion is outstanding.
Also, as known from Table 5, the BET specific surface area of silica is bigger, moisture penetration length, volume expansion evaluation and The physical property of cohesive force etc. significantly degenerates.
Those skilled in the art may be easy to implement simple deformation or change of the invention, can be considered as This deformation or change belong in the field of the invention.

Claims (16)

1. a kind of organic electronic device adhesive film used for packing material, which is characterized in that
The second adhesive layer including the first adhesive layer and the one side for being formed in first adhesive layer,
First adhesive layer includes the first hybrid resin, tackifier and the first hygroscopic agent,
The BET specific surface area of first hygroscopic agent is 2~20m2/g。
2. organic electronic device adhesive film used for packing material according to claim 1, which is characterized in that first moisture absorption The BET specific surface area of agent is 4~8m2/g。
3. organic electronic device adhesive film used for packing material according to claim 2, which is characterized in that first moisture absorption Agent includes silica.
4. organic electronic device adhesive film used for packing material according to claim 1, which is characterized in that
First hybrid resin includes the first binding resin and the second binding resin with the weight ratio of 1:0.1~10,
Relative to the first hybrid resin of 100 parts by weight, the tackifier comprising 50~300 parts by weight,
Relative to the first hybrid resin of 100 parts by weight, first hygroscopic agent comprising 1~40 parts by weight.
5. organic electronic device adhesive film used for packing material according to claim 1, which is characterized in that
The tackifier include the first tackifier and the second tackifier with the weight ratio of 1:0.5~1.5,
Softening point of the softening point of first tackifier less than the second tackifier.
6. organic electronic device adhesive film used for packing material according to claim 1, which is characterized in that
First adhesive layer also includes one or more of curing agent and uv initiator,
Relative to the first hybrid resin of 100 parts by weight, the curing agent comprising 2~30 parts by weight,
Relative to the first hybrid resin of 100 parts by weight, the uv initiator comprising 0.1~5 parts by weight.
7. organic electronic device adhesive film used for packing material according to claim 1, which is characterized in that first bonding The viscosity of layer is 150000 Pa Secs or less under the conditions of 50 DEG C of temperature.
8. organic electronic device adhesive film used for packing material according to claim 1, which is characterized in that
Second adhesive layer includes the second hybrid resin, tackifier and the second hygroscopic agent,
Second hybrid resin includes the first binding resin and the second binding resin with the weight ratio of 1:0.1~10,
Relative to the second hybrid resin of 100 parts by weight, the tackifier comprising 60~300 parts by weight,
Relative to the second hybrid resin of 100 parts by weight, second hygroscopic agent comprising 50~450 parts by weight.
9. organic electronic device adhesive film used for packing material according to claim 8, which is characterized in that
The tackifier include the first tackifier,
Second hygroscopic agent includes calcium oxide.
10. organic electronic device adhesive film used for packing material according to claim 8, which is characterized in that
Second adhesive layer also includes one or more of curing agent and uv initiator,
Relative to the second hybrid resin of 100 parts by weight, the curing agent comprising 10~40 parts by weight,
Relative to the second hybrid resin of 100 parts by weight, the uv initiator comprising 0.1~8 parts by weight.
11. organic electronic device adhesive film used for packing material according to claim 8, which is characterized in that described second is viscous The viscosity for tying layer is 200000 Pa Secs or more under the conditions of 50 DEG C of temperature.
12. the adhesive film used for packing material of organic electronic device according to claim 1 or 8, which is characterized in that
First binding resin includes that weight average molecular weight is 30000~1550000 by ethylene, propylene and diolefinic compounds Random copolymer made of copolymerization,
Second binding resin includes the compound indicated by following chemical formula 1,
Chemical formula 1:
In the chemical formula 1, R1For the branched chain type alkenyl of the straight chain type alkenyl or C4~C10 of hydrogen atom or C3~C10, the n Meet 30000~1550000 rational for the weight average molecular weight of the compound indicated by chemical formula 1.
13. organic electronic device adhesive film used for packing material according to claim 12, which is characterized in that
The ethylene and propylene are formed with the weight ratio random copolymerization of 1:0.3~1.4,
Relative to the random copolymer total weight, the diolefinic compounds comprising 2~15 weight percent.
14. organic electronic device adhesive film used for packing material according to claim 1, which is characterized in that
The glass adhesion according to the measurement of following measuring methods 1 of the adhesive film is 1500gf/25mm or more,
Metal adhesion according to the measurement of following measuring methods 2 is 1000gf/25mm or more,
Measuring method 1: adhesive tape is measured in adhesive film upper side lamination adhesion, sample is cut out with width 25mm and length 120mm After cutting, 80 DEG C at a temperature of adhesive film bottom surfaces are laminated to glass after, the sample prepared is placed 30 points at normal temperature Clock, and with 300mm/ minutes velocity determination glass adhesions,
Measuring method 2: 80 DEG C at a temperature of adhesive film upper side is laminated to 80 μm thickness nickel alloy, and by adhesion Measurement adhesive tape is laminated to adhesive film bottom surfaces, and after sample is cut with width 25mm and length 120mm, the sample prepared is existed It is placed 30 minutes under room temperature, and with 300mm/ minutes velocity determination metal adhesions.
15. a kind of organic electronic device encapsulating material, which is characterized in that including described in any one of claims 1 to 14 Organic electronic device adhesive film used for packing material.
16. a kind of light emitting device characterized by comprising
Substrate;
Organic electronic device is formed in at least one side of the substrate;And
Organic electronic device encapsulating material described in claim 15, for encapsulating the organic electronic device.
CN201810956420.5A 2017-08-22 2018-08-21 Adhesive film for organic electronic device encapsulating material and encapsulating material for organic electronic device comprising same Active CN109423222B (en)

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