CN108690553A - Antistatic property silicone pressure-sensitive adhesive composition and screening glass - Google Patents
Antistatic property silicone pressure-sensitive adhesive composition and screening glass Download PDFInfo
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- CN108690553A CN108690553A CN201810028884.XA CN201810028884A CN108690553A CN 108690553 A CN108690553 A CN 108690553A CN 201810028884 A CN201810028884 A CN 201810028884A CN 108690553 A CN108690553 A CN 108690553A
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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
- C09J9/00—Adhesives characterised by their physical nature or the effects produced, e.g. glue sticks
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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
- C09J183/00—Adhesives based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Adhesives based on derivatives of such polymers
- C09J183/04—Polysiloxanes
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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
- C09J11/04—Non-macromolecular additives inorganic
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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
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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
- C09J11/08—Macromolecular additives
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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
- C09J7/00—Adhesives in the form of films or foils
- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
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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
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K3/00—Materials not provided for elsewhere
- C09K3/16—Anti-static materials
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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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
- C09J2467/00—Presence of polyester
- C09J2467/006—Presence of polyester in the substrate
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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
- C09J2483/00—Presence of polysiloxane
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- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
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Abstract
The present invention provides that a kind of transparency is high, base material adherence also excellent antistatic property silicone pressure-sensitive adhesive composition, and the transparency is high, the adherence of base material film and pressure sensitive adhesive layer also excellent screening glass.Antistatic property silicone pressure-sensitive adhesive composition provided by the invention contains:Silicone pressure-sensitive adhesive and antistatic agent, wherein antistatic agent is anion and cationic not carbon atoms by anion and the ionic compound that is formed of cation.
Description
Technical field
The present invention relates to a kind of pressure sensitive adhesive layers for protecting the screening glass of device and can be used for the screening glass
Antistatic property silicone pressure-sensitive adhesive composition.
Background technology
Back and forth, for the devices such as optical component or electronic component, in the processes such as processing, assembling, inspection, it is
The damage on surface is prevented, pastes the screening glass formed by base material film and pressure sensitive adhesive layer on the surface of the device sometimes.
The screening glass is removed from device when that need not protect, but there is the case where generating electrostatic because removing electrostatic at this moment.
If generating electrostatic, rubbish or dust in air can be attached on device, so as to cause the unfavorable condition of device.
Therefore, in order to avoid generation electrostatic, it is desirable that assign antistatic property to the pressure sensitive adhesive layer of screening glass.To by acrylic pressure sensitive
The technology that the pressure sensitive adhesive layer that adhesive is formed assigns antistatic property has been established, as long as adding in acrylic psa
Add general antistatic agent.
However in recent years, as optical component, the trend of Organic Light Emitting Diode (OL ED) device is shifted to from liquid crystal device
It becomes active.Also, the research of flexible OLED device (hereinafter sometimes referred to " flexible OLED device ") also becomes active.
The flexible OLED device is different from liquid crystal device and common OLED device, due to softness, is using previous screening glass
When, it will produce the problem of being difficult to remove from flexible OLED device.In addition, in the inspection operation of OLED device, due to sometimes
It can expose under the high temperature conditions, therefore heat resistance is required to screening glass.In this context, preferred organosilicon (silicone) class pressure
Sensitive adhesive is as the contact adhesive for forming pressure sensitive adhesive layer.
Patent Document 1 discloses the technologies that antistatic agent is added in organic silicon contact adhesive.In patent text
It offers in 1 embodiment, double trifluoromethanesulfonimide lithiums is used as antistatic agent.
Existing technical literature
Patent document
Patent document 1:Japanese Unexamined Patent Application Publication 2009-530470 bulletins
Invention content
The technical problem to be solved in the present invention
Here, due in the luminescent inspection of OLED device, with the luminescent inspection compared with liquid crystal device it is tightened up it is horizontal into
Row checks, therefore requires high transparency to screening glass.But the organosilicon added with antistatic agent described in patent document 1
Class pressure-sensitive adhesive composition is unable to get high transparency required in the luminescent inspection of OLE D devices.In addition, by patent
The pressure sensitive adhesive layer that organic silicon pressure-sensitive adhesive composition described in document 1 is formed, there is also the adherences to base material film
The low problem of property.
The present invention is completed in view of above-mentioned actual conditions, high, base material adherence that its purpose is to provide a kind of transparencys
Excellent antistatic property silicone pressure-sensitive adhesive composition, and the transparency is high, the adherence of base material film and pressure sensitive adhesive layer
Property also excellent screening glass.
Solve the technological means of technical problem
In order to achieve the above objectives, first, the present invention provides a kind of antistatic property silicone pressure-sensitive adhesive composition,
Contain silicone pressure-sensitive adhesive and antistatic agent, which is characterized in that the antistatic agent is to be formed by anion and cation
Ionic compound, the anion and the cation not carbon atoms (invention 1).
The antistatic property silicone pressure-sensitive adhesive composition that foregoing invention (invention 1) is related to, it is above-mentioned anti-quiet by containing
Electric agent so that the transparency is high and base material adherence is also excellent.
In foregoing invention (invention 1), the preferably described anion contains fluorine atom (invention 2).
In foregoing invention (invention 1,2), the preferably described cation is metal cation (invention 3).
In foregoing invention (invention 3), the preferably described metal cation is alkali metal (invention 4).
In foregoing invention (invention 1~4), the dispersant (invention 5) for disperseing the antistatic agent is preferably comprised.
In foregoing invention (invention 5), the preferably described dispersant is alkylene glycol dialkylether (a lkylene
Glycol dialkyl ether) (invention 6).
Second, the present invention provides a kind of screening glass, for the screening glass for protecting device, which is characterized in that have base
Material film and be laminated in the base material film a surface side pressure sensitive adhesive layer, the pressure sensitive adhesive layer is by described anti-quiet
Electrical silicone pressure-sensitive adhesive composition (invention 1~6) is formed (invention 7).
In foregoing invention (invention 7), the preferably described device is flexible devices (flexible devi ce) (invention 8).
Invention effect
The transparency height of antistatic property silicone pressure-sensitive adhesive composition of the present invention, the adherence of base material are also excellent
It is different.In addition, the adherence of the transparency height of screening glass of the present invention, base material film and pressure sensitive adhesive layer is also excellent.
Description of the drawings
Fig. 1 be one embodiment of the present invention relates to screening glass sectional view.
Reference sign
1 ... screening glass;11 ... base materials;12 ... pressure sensitive adhesive layers;13 ... stripping films.
Specific implementation mode
Hereinafter, embodiments of the present invention will be described.
[Antistatic property You Jiguiyaminnianhejizuhewu ]
One embodiment of the present invention relates to antistatic property silicone pressure-sensitive adhesive composition (only claim sometimes below
For " pressure-sensitive adhesive composition ") contain silicone pressure-sensitive adhesive and antistatic agent, preferably further contain dispersant.This reality
The pressure-sensitive adhesive composition that the mode of applying is related to, suitable for the pressure-sensitive viscous of the screening glass for forming the surface for protecting device etc.
Mixture layer.
(1) silicone pressure-sensitive adhesive
As silicone pressure-sensitive adhesive, preferably select:Suitable for viscous on the adherend (device) as protected object
Patch and at a high temperature of from the stripping on adherend and applied in the inspection in adherend (such as 90~150 DEG C)
The silicone pressure-sensitive adhesive for the pressure-sensitive adhesion power played stably.For example, when the flexible device that adherend is flexible OLED device etc.
When part, in order to make screening glass be easy to remove from flexible devices, having for the excellent micro- pressure-sensitive-adhesive of releasable is preferably selected
Machine silicon contact adhesive.In addition, silicone pressure-sensitive adhesive compared with acrylic pressure-sensitive adhesive, plays at high temperature
Stable pressure-sensitive adhesion power, excellent heat resistance.
Can be condensed type organic silicon contact adhesive, or addition reaction as organic silicon contact adhesive
Type silicone pressure-sensitive adhesive, but from the angle of releasable, preferably addition reaction-type silicone pressure-sensitive adhesive.
Addition reaction-type silicone pressure-sensitive adhesive is preferably comprised by least having 2 alkenyl (alkenyl in 1 molecule
Group at least with 2 hydrosilyl groups (hydrosilyl group) in the first dimethyl silicone polymer and 1 molecule)
The addition reaction type silicone resin that second dimethyl silicone polymer obtains particularly preferably further contains organosilicon as host agent
Resin.
As the alkenyl contained by the first dimethyl silicone polymer, vinyl, allyl, acrylic, butylene can be enumerated
The monovalent hydrocarbons such as base, pentenyl, hexenyl, heptenyl, octenyl, wherein particularly preferred vinyl.
(quantity of alkenyl is relative to the methyl for being bonded to silicon atom for the content of alkenyl in first dimethyl silicone polymer
The ratio of quantity), preferably 0.005~0.1 mole of %, particularly preferably 0.01~0.05 mole of %.It is preferred that in strand
Two ends have alkenyl, can also have alkenyl on side chain.By at least containing in the first dimethyl silicone polymer of 1 molecule
There are two alkenyls, and the content for making alkenyl is within the above range, can form the high cross-linked structure of crosslink density, be shelled again
The pressure sensitive adhesive layer excellent from property.
The degree of polymerization (quantity of siloxanes key) of first dimethyl silicone polymer, preferably 200~5,000, particularly preferably
It is 500~3,000.In addition, the content of the hydrosilyl groups in the second dimethyl silicone polymer, preferably 2 in 1 molecule~
300, particularly preferably 4~200.The degree of polymerization of second dimethyl silicone polymer, preferably 50~2,000, particularly preferably
It is 100~1,500.Further, blending of second dimethyl silicone polymer relative to 100 mass parts of the first dimethyl silicone polymer
Than preferably 0.01~20 mass parts, particularly preferably 0.1~10 mass parts.It is poly- by the content of Shi Ge functional groups and second
Dimethyl siloxane relative to the first dimethyl silicone polymer blend ratio within the above range, first poly- two can be carried out well
The addition reaction of methylsiloxane and the second dimethyl silicone polymer.
In addition, the first dimethyl silicone polymer does not preferably have hydrosilyl groups, the second dimethyl silicone polymer is preferably not
With alkenyl.
The weight average molecular weight of first dimethyl silicone polymer is preferably 20,000~1,300,000, particularly preferably 300,000~1,200,000.
In addition, the weight average molecular weight of the second dimethyl silicone polymer is preferably 300~1400, particularly preferably 500~1200.In addition,
Weight average molecular weight in this specification is the value for being converted into standard polystyren measured using gel permeation chromatography (GPC) method.
As organic siliconresin, can be used for example, by as a functional silicone Dan Yuan [(CH3)3Si O1/2]M units
With as Si Guannengguiyangwandanyuan [SiO4/2]Q unit constitute MQ resins.The molar ratio of M units/Q unit is preferably 0.6
~1.7.The organic siliconresin has the function of assigning pressure-sensitive-adhesive to silicone pressure-sensitive adhesive.
Blended amount of the organic siliconresin relative to 100 mass parts of addition reaction type silicone resin, in terms of lower limiting value, preferably
More than 1 mass parts, more than particularly preferably 3 mass parts, more than further preferably 5 mass parts.By making organic siliconresin
Blended amount lower limiting value be it is above-mentioned, required pressure-sensitive adhesion power can be obtained, obtained screening glass can be prevented from adherend (device
Part) on remove with being not intended to.In addition, above-mentioned blended amount, in terms of upper limit value, preferably 40 is below mass part, particularly preferably 30
Below mass part, further preferably 20 is below mass part.By make organic siliconresin blended amount upper limit value be it is above-mentioned, can
Prevent pressure-sensitive adhesion power from becoming excessively high, it can be ensured that the releasable of obtained screening glass.
Above-mentioned addition reaction-type silicone pressure-sensitive adhesive preferably comprises catalyst.As catalyst, as long as can make above-mentioned
Addition reaction type silicone resin solidification (keeps the first dimethyl silicone polymer and the progress addition of the second dimethyl silicone polymer anti-
Answer), then it is not particularly limited, but wherein preferred platinum group metal class compound.As platinum group metal class compound, such as can enumerate
Go out microgranular platinum, the microgranular platinum that is adsorbed in carbon powder carrier, chloroplatinic acid, alcohol are modified chloroplatinic acid, the alkene complexing of chloroplatinic acid
Object, palladium, rhodium etc..By containing the catalyst, the curing reaction of addition reaction type silicone resin can be more effectively carried out.
Blended amount about catalyst relative to 100 mass parts of above-mentioned addition reaction type silicone resin, platinum ingredient are preferred
For 0.01~3 mass parts, particularly preferably 0.05~2 mass parts.
(2) antistatic agent
Antistatic agent in present embodiment is the ionic compound formed by anion and cation, the anion and sun
Ion not carbon atoms.Since the intermiscibility of the antistatic agent and silicone pressure-sensitive adhesive is excellent, obtained pressure
The transparency of sensitive adhesive composition is high.Therefore, has the guarantor of the pressure sensitive adhesive layer formed by the pressure-sensitive adhesive composition
The transparency of bluff piece is also high, for example, the luminescent inspection for being pasted with the OLED device of the screening glass can be carried out without problems.
In addition, the pressure sensitive adhesive layer formed by the pressure-sensitive adhesive composition for being blended with above-mentioned antistatic agent, to protection
The base material film of piece shows high adherence, that is, base material adherence is also excellent.Therefore, screening glass is as the stability of product and reliable
Degree is high, in addition, when screening glass is removed from adherend, no pressure sensitive adhesive layer or pressure-sensitive adhesive composition remain in by
The possibility of viscous object side.
From the angle of intermiscibility and base material adherence with silicone pressure-sensitive adhesive, above-mentioned ionic compound is constituted
Anion preferably comprise fluorine atom.Specifically, can for example enumerate double fluorine sulfimide (N (SO2F)2 -), hexafluorophosphoric acid
(PF6 -), tetrafluoride boron (BF4 -) etc., wherein it is preferred that pair excellent with the intermiscibility and base material adherence of silicone pressure-sensitive adhesive
Fluorine sulfimide.
From the angle of intermiscibility and base material adherence with silicone pressure-sensitive adhesive, above-mentioned ionic compound is constituted
Cation be preferably metal cation.As metal cation, such as lithium (Li can be enumerated+), sodium (Na+), potassium (K+), rubidium
(Rb+), caesium (Cs+) etc. alkali metal;Beryllium (Be2+), magnesium (Mg2+), calcium (Ca2+), strontium (Sr2+), barium (Ba2+) etc. alkaline-earth metal etc..On
Among stating, from the angle of intermiscibility and base material adherence with silicone pressure-sensitive adhesive, preferred as alkali, particularly preferably
Potassium.
Therefore, in the present embodiment, most preferred antistatic agent is N, bis- (fluorosulfonyl) the imines potassium of N-.Use N, N-
The transparency of the antistatic property silicone pressure-sensitive adhesive composition of bis- (fluorosulfonyl) imines potassium is very high, in addition, by the pressure
The adherence of pressure sensitive adhesive layer and base material film that sensitive adhesive composition is formed is very high.Therefore, have by by N, the bis- (fluorine of N-
Sulfonyl) imines potassium is used as the pressure sensitive adhesive layer that the antistatic property silicone pressure-sensitive adhesive composition of antistatic agent is formed
Screening glass, the screening glass as OLED device are very excellent.
In addition, antistatic agent can be used singly or in combination of two or more.
Host agent (organic siliconresin, especially addition reaction type silicone resin) relative to silicone pressure-sensitive adhesive
100 mass parts, the content of the antistatic agent in antistatic property silicone pressure-sensitive adhesive composition of the present embodiment, with
Lower limiting value meter, more than preferably 0.1 mass parts, more than particularly preferably 0.5 mass parts, more than further preferably 1 mass parts.
If the lower limiting value of the content is above-mentioned, good antistatic property can be obtained.On the other hand, the content of above-mentioned antistatic agent,
In terms of upper limit value, preferably 5 is below mass part, and particularly preferably 4 is below mass part, and further preferably 3 is below mass part.If
The upper limit value of the content is above-mentioned, then the base material adherence of pressure sensitive adhesive layer becomes higher.
(3) dispersant
Above-mentioned antistatic agent, though it is preferred that it is used alone, it is also preferred that being used simultaneously with dispersant.The dissolubility of antistatic agent
When insufficient, the ionic conductivity of antistatic agent can be improved, by improving dissolubility using dispersant simultaneously to further
Promote antistatic property.
As dispersant, such as preferably enumerate alkylene glycol dialkylether etc..As aklylene glycol dialkyl group
The concrete example of ether can enumerate eight butyl cellosolves, eight ethylene glycol diethyl ethers, eight glycol dimethyl ethers, six ethylene glycol, two fourth
Ether, six ethylene glycol diethyl ethers, six glycol dimethyl ethers, tetraethylene glycol butyl oxide, tetraethylene glycol diethyl ether, tetraethyleneglycol dimethyl ether
(hereinafter sometimes referred to " t etraglyme "), triethylene glycol diethyl ether, triethylene glycol dimethyl ether etc..Among above-mentioned, preferably to N,
The dispersed especially excellent tetraglyme of bis- (fluorosulfonyl) the imines potassium of N-.These dispersants can be used alone,
Two or more can be applied in combination.
Relative to 1 mass parts of antistatic agent, the blended amount of dispersant, in terms of lower limiting value, it is more than preferably 0.1 mass parts,
More than particularly preferably 0.5 mass parts, more than further preferably 0.9 mass parts.If the lower limiting value of the blended amount of dispersant is
Above-mentioned, then antistatic effect is further promoted.In addition, above-mentioned blended amount, in terms of upper limit value, preferably 2.0 is below mass part, special
You Xuanwei not be 1.5 below mass part, further preferably 1.1 is below mass part.If the upper limit value of the blended amount of dispersant is upper
It states, then can highly maintain the transparency of obtained pressure-sensitive adhesive composition.
(4) other ingredients
The antistatic property silicone pressure-sensitive adhesive composition of present embodiment can also contain and hand in addition to mentioned component
Join the various additives such as agent, reaction suppressor, silane coupling agent.
[Bao Hupian ]
In the process of the processing, assembling, inspection of device etc., the damage etc. of device surface in order to prevent, by the present invention's
The screening glass that one embodiment is related to is for protecting device.
As shown in Figure 1, screening glass 1 of the present embodiment, by base material film 11, it is laminated in a face of base material film 11
Pressure sensitive adhesive layer 12 on (being in Fig. 1 downside) and be laminated in pressure sensitive adhesive layer 12 with 11 opposite side of base material film (
In Fig. 1 be downside) face on stripping film 13 constitute.The stripping film 13 is for protecting pressure sensitive adhesive layer 12 until using protection
Until when piece 1, removal is stripped when using screening glass 1.In screening glass 1 of the present embodiment, stripping can be also omitted
Piece 13.
1. each component
(1) base material film
As base material film 11, preferably it has to the high temperature (example applied in the inspection of the device as protected object
Such as 90~150 DEG C) heat resistance.In addition, base material film 11 to be used in device, particularly the OLED device etc. for carrying out luminescent inspection
When, the high base material film of preferably clear degree.
As the base material film 11, for example, preferably by polyethylene terephthalate, polyethylene naphthalate, poly- pair
Benzene dicarboxylic acid butanediol ester, polyimides, polyetherimide, makrolon, polymethylpentene, polyphenylene sulfide, liquid crystal polymer
The plastic foil that equal resins are formed can be the film formed by single layer, or be laminated with multiple layers of film of the same race or xenogenesis.
Among above-mentioned, from the aspect of heat resistance, the transparency and cost, particularly preferred polyethylene terephthalate film.
In addition, although above-mentioned plastic foil can also contain the additives such as heat resistance improver, ultra-violet absorber, require
When high transparency, filler is preferably free of.
In above-mentioned base material film 11, to be promoted with for the purpose of the adherence of pressure sensitive adhesive layer 12, according to required, it can implement
Surface treatment based on oxidizing process, further provided for contouring method etc. or prime treatment.As above-mentioned oxidizing process, such as corona can be enumerated and put
Electric treatment, plasma discharge processing, chromic acid processing (wet type), flame treatment, hot wind processing, ozone, ultraviolet treatment with irradiation
Deng, in addition, as further provided for contouring method, such as sand-blast, spray treatment method can be enumerated etc..These surface preparations, can be according to base
The type of material film is suitably selected.
If considering heat resistance and pasting the workability with stripping, the thickness of base material film 11 is preferably 25 μm or more, more preferably
It is 38 μm or more, further preferably 50 μm or more.When device as protected object is flexible devices, from stickup and stripping
The angle of workability is set out, particularly preferably 50 μm or more.On the other hand, if considering to paste the workability and cost with stripping,
Then the thickness be preferably 150 μm hereinafter, particularly preferably 125 μm hereinafter, further preferably 100 μm or less.
(2) pressure sensitive adhesive layer
Pressure sensitive adhesive layer 12 is formed by above-mentioned antistatic property silicone pressure-sensitive adhesive composition.
From the angle of pressure-sensitive-adhesive, the thickness of pressure sensitive adhesive layer 12 is preferably 15 μm or more, particularly preferably
20 μm or more, further preferably 25 μm or more.In addition, from the angle of fissility, the thickness of pressure sensitive adhesive layer 12 is excellent
Be selected as 75 μm hereinafter, particularly preferably 50 μm hereinafter, further preferably 30 μm or less.
(3) stripping film
As stripping film 13, as long as not causing harmful effect to pressure sensitive adhesive layer 12, then it is not particularly limited, such as can
To use polyethylene film, polypropylene screen, polybutene film, polybutadiene film, polymethylpentene film, polychloroethylene film, vinyl chloride total
Polymers film, poly (ethylene naphthalate) film, polybutylene terephthalate (PBT) film, gathers at polyethylene terephthalate film
Urethane film, ethylene vinyl acetate film, ionomer resin film, ethylene-(methyl) acrylic copolymer film, ethylene-(methyl) third
Olefin(e) acid ester copolymer film, polystyrene film, polycarbonate membrane, polyimide film, fluororesin film etc..In addition it is also possible to use it
Cross linking membrane.Further, or their stacked film.Among above-mentioned, the excellent poly terephthalic acid of preferred operations
Glycol ester film.
The face of above-mentioned stripping film 13 contacted with pressure sensitive adhesive layer 12, preferably without imposing lift-off processing, that is, preferably not
There are peeling agent layers.It is usually used in peeling agent layer when pressure sensitive adhesive layer 12 is made of silicone pressure-sensitive adhesive composition
Fluorine class remover, but setting formed by fluorine class remover peeling agent layer when, there are fluorine ingredients to be transferred to pressure sensitive adhesive layer 12,
Antistatic property or pressure-sensitive adhesion power to make pressure sensitive adhesive layer 12 become unstable possibility.
Generated electrostatic when removing stripping film 13 from pressure sensitive adhesive layer 12 to more efficiently prevent from, can also
On one of the face of stripping film 13 contacted with pressure sensitive adhesive layer 12 and its opposing face or double persons, antistatic layer is set.
Though the thickness about stripping film 14 is not particularly limited, preferably generally 15~100 μm, particularly preferably 25~75
μm。
2. the manufacturing method of screening glass
In order to manufacture screening glass 1 of the present embodiment, as an example, on a face of base material film, coating
After coating fluid containing antistatic property silicone pressure-sensitive adhesive composition and according to required diluent, by being done
It is dry, it is allowed to cure, to form pressure sensitive adhesive layer 12.
As above-mentioned diluent, there is no particular restriction, and various diluents can be used.For example, with toluene, hexane,
Headed by the hydrocarbon of heptane etc., acetone, ethyl acetate, methyl ethyl ketone, methyl iso-butyl ketone (MIBK) and their mixture can be used
Deng.
The coating of the coating fluid of antistatic property silicone pressure-sensitive adhesive composition, as long as being by conventional method
Can, for example, passing through rod coating method, scraper for coating method (knife coating metho d), rolling method, scraping blade rubbing method
(blade coating method), die coating methods (die co ating method), gravure coating process carry out.It is excellent
After choosing is coated with above-mentioned coating fluid, make film heat drying.
It is excellent when the host agent of antistatic property silicone pressure-sensitive adhesive composition is addition reaction-type silicone pressure-sensitive adhesive
Choosing makes above-mentioned film heat cure.Heating temperature at this time is preferably 80~180 DEG C, and heating time is preferably 10~120 seconds or so.
It is formed as described above after pressure sensitive adhesive layer 12, stripping film 13 is pasted on the pressure sensitive adhesive layer 12,
Obtain screening glass 1.
In addition, in above-mentioned manufacturing method, it, can also although foring pressure sensitive adhesive layer 12 relative to base material film 11
Pressure sensitive adhesive layer 12 is formed relative to stripping film 13, base material film 11 is pasted on pressure sensitive adhesive layer 12 later.
3. physical property
(1) surface resistivity
The surface resistivity of pressure sensitive adhesive layer 12 in screening glass 1 can be measured according to JIS K6911.It is pressure-sensitive viscous
The surface resistivity of mixture layer 12, in terms of upper limit value, preferably 1 × 1013Ω/sq is hereinafter, particularly preferably 5 × 1012Ω/sq
Hereinafter, further preferably 1 × 1012Ω/sq or less.Upper limit value by making above-mentioned surface resistivity is above-mentioned, can protected
In piece 1, excellent antistatic property is played.In addition, above-mentioned surface resistivity, in terms of lower limiting value, preferably 1 × 109Ω/sq with
On, particularly preferably 5 × 109Ω/sq or more, further preferably 1 × 1010Ω/sq or more.By making above-mentioned surface resistivity
Lower limiting value be it is above-mentioned, can play good antistatic property without damage pressure-sensitive adhesion physical property.
(2) haze value
The laminated body in addition to stripping film 13 in screening glass 1 of the present embodiment (is in the present embodiment base
The laminated body of material film 11 and pressure sensitive adhesive layer 12) haze value, preferably 2% hereinafter, particularly preferably 1.9% hereinafter, into
One step is preferably 1.8% or less.By making above-mentioned haze value be above-mentioned, the transparency for being pasted on the screening glass 1 on adherend becomes
It is high.As a result, for example, also can there is no problem carries out the luminescent inspection for being pasted with the OLED device of the screening glass 1.On in addition,
The lower limiting value for stating haze value, is not particularly limited, and particularly preferably 0%.Here, the haze value in this specification is according to JIS
K7136:2000 values measured.
Screening glass 1 of the present embodiment can reach by using above-mentioned antistatic agent in pressure sensitive adhesive layer 12
Low haze valus as described above.
(3) pressure-sensitive adhesion power
Screening glass 1 of the present embodiment is to the pressure-sensitive adhesion power of soda-lime glass, in terms of lower limiting value, preferably 0.01N/
25mm or more, particularly preferably 0.015N/25mm or more, further preferably 0.02N/25mm or more.It is above-mentioned pressure-sensitive by making
The lower limiting value of bonding force is above-mentioned, can prevent screening glass 1 from being removed with being not intended to from adherend (device).
In addition, above-mentioned pressure-sensitive adhesion power, in terms of upper limit value, preferably 0.2N/25mm is hereinafter, particularly preferably 0.15N/
25mm is hereinafter, further preferably 0.1N/25mm or less.Upper limit value by making above-mentioned pressure-sensitive adhesion power is above-mentioned, will protected
When bluff piece 1 is removed from adherend (device, especially flexible devices), screening glass 1 can be successfully removed without to device band
To damage.
In addition, although the pressure-sensitive adhesion power in this specification refers to substantially according to JIS Z0237:2009 180 ° of strippings
Method and the pressure-sensitive adhesion power measured, but determination sample is set as 25mm wide, 100mm long, and by the measurement at 0.5MPa, 50 DEG C
After sample is pasted for 20 minutes relative to adherend pressurization, placed 24 hours under conditions of normal pressure, 23 DEG C, 50%RH,
And then it is measured with 300mm/ minutes peeling rates.
4. purposes
Screening glass 1 of the present embodiment, primarily to being prevented in the processes such as the processing, assembling, inspection of device
Damage of device surface etc. and be used to protect device.But it is not limited to the purposes.
As the device of the protected object as screening glass 1, such as optical component or electronic component can be enumerated etc., but
In present embodiment, preferably flexible devices, furthermore it is preferred that for required in the state of being pasted with screening glass 1 luminescent inspection or
The device of hot conditions.Wherein, more preferably OLED device, particularly preferably flexible OLED device.
Screening glass 1 of the present embodiment, by keeping the transparency of pressure sensitive adhesive layer 12 high so that whole is transparent
Property is also high.It therefore, also can there is no problem carries out the luminescent inspection for being pasted with the OLED device of screening glass 1.Further, since by having
The releasable for the pressure sensitive adhesive layer 12 that machine silicon pressure-sensitive adhesive composition is formed is excellent, therefore also can be easily from flexible device
It is removed on part.Further, due to the excellent heat resistance of the pressure sensitive adhesive layer 12 formed by silicone pressure-sensitive adhesive composition,
Even if the pressure-sensitive adhesion power played stably if therefore when inspection at a high temperature of OLED device or later.Further, since protection
The base material film 11 and the adherence of pressure sensitive adhesive layer 12 of piece 1 are also excellent, therefore the stability as product and reliability height, this
Outside, when removing screening glass 1 from adherend, there is no pressure sensitive adhesive layer 12 or pressure-sensitive adhesive composition remain in by
The possibility of viscous object side.Further, since the pressure sensitive adhesive layer 12 of screening glass 1 of the present embodiment has antistatic property,
Therefore do not allow when removing screening glass 1 from device easy to produce static electricity, can inhibit rubbish in air or dust due to electrostatic
It is attached on device.
The implementation described above, for easy understanding the present invention and be described, be not intended to limit this hair
It is bright and be described.Therefore, each element disclosed in the above embodiment, also to include belonging to owning for technical scope of the invention
Design alteration and equivalent objective.
For example, between the base material film 11 in screening glass 1 and pressure sensitive adhesive layer 12, can also be situated between is having other layer (examples
Such as antistatic layer), on the face with 12 side opposite side of pressure sensitive adhesive layer of base material film 11, other layer (examples can also be laminated with
Such as antistatic layer).
Embodiment
Hereinafter, the present invention is more specifically illustrated by embodiment etc., but the scope of the present invention is not by these
The restriction of embodiment etc..
[Embodiment 1]
1. the preparation of the coating fluid of pressure-sensitive adhesive composition
By the addition reaction type silicone resin (Shin- of the host agent as silicone pressure-sensitive adhesive of 100 mass parts
Etsu Chemical Co., Ltd.s manufacture, name of product " KS-847H "), the organic siliconresin (Dow of 5.0 mass parts
Corning Toray Co., Ltd.s manufacture, name of product " S D-4584 "), the platinum catalyst (Dow of 1.5 mass parts
Corning Toray Co., Ltd.s manufacture, name of product " SRX 212CATALYST "), 0.5 mass parts be used as antistatic agent
N, bis- (fluorosulfonyl) imines potassium (K of N-+FSI-) and 0.5 mass parts as dispersant tetraethyleneglycol dimethyl ether mix,
It is diluted using methyl ethyl ketone, by this as the coating fluid of pressure-sensitive adhesive composition.
2. the manufacture of screening glass
Using knife type coater, in PET film (TOYOBO CO., LTD. manufactures, the name of product as base material film
" Cosmoshine A4300 ", 75 μm of thickness) single side on, be coated on the pressure-sensitive adhesive composition obtained in above-mentioned operation
After coating fluid, heated 1 minute with 130 DEG C, forms the pressure sensitive adhesive layer that thickness is 25 μm.Then, pressure-sensitive at this
Polyethylene terephthalate (PET) film (TORAY the INDUSTRI ES, INC. as stripping film are pasted on adhesive phase
Manufacture, name of product " LumilerT60 ", no peeling agent layer, 38 μm of thickness), obtain screening glass.
[2~5] of embodiment;
In the preparation of the coating fluid of pressure-sensitive adhesive composition, in addition to the blended amount of antistatic agent and dispersant is changed
Other than shown in table 1, screening glass has been manufactured in a manner of similarly to Example 1.
[Embodiment 6]
By the addition reaction type silicone resin (Arakawa of the host agent as silicone pressure-sensitive adhesive of 100 mass parts
Chemical Industries.Ltd. manufacture, name of product " シ リ コ ー ス KF-150 "), the organosilicon trees of 10.0 mass parts
Fat (Arakawa Chemical Industries.Lt d. manufactures, name of product " シ リ コ ー ス PSA408 "), 1.5 mass parts
Platinum catalyst (Do w Corning Toray Co., Ltd.s manufacture, name of product " SRX 212CATALYST "), 0.5 mass
The N as antistatic agent, bis- (fluorosulfonyl) imines potassium (K of N- of part+FSI-) and 0.5 mass parts the tetrem as dispersant
Glycol dimethyl ether mixes, and is diluted using methyl ethyl ketone, by this as the coating fluid of pressure-sensitive adhesive composition.
[Comparative example 1]
In the preparation of the coating fluid of pressure-sensitive adhesive composition, except the N- decyl pyridines for blending 2.5 mass partsBis- (fluorine
Sulfonyl) imines (Pry+FSI-) be used as antistatic agent and do not blend other than dispersant, it is manufactured in a manner of similarly to Example 1
Screening glass.
[Comparative example 2]
In the preparation of the coating fluid of pressure-sensitive adhesive composition, except the N- octyl -4- picolines for blending 2.5 mass partsHexafluorophosphate (Pry+PF6 -) be used as antistatic agent and do not blend other than dispersant, the system in a manner of similarly to Example 1
Screening glass is made.
[Comparative example 3]
In the preparation of the coating fluid of pressure-sensitive adhesive composition, except bis- (the fluoroform sulphonyl) for blending 2.5 mass parts
Imine lithium (Li+TFSI-) be used as antistatic agent and do not blend other than dispersant, guarantor has been manufactured in a manner of similarly to Example 1
Bluff piece.
[Comparative example 4]
In the preparation of the coating fluid of pressure-sensitive adhesive composition, in addition to not blending antistatic agent and dispersant, with
1 same mode of embodiment has manufactured screening glass.
In addition, indicating the blend ratio etc. of the material used in each embodiment and comparative example in table 1.
[Test example 1](measurement of surface resistivity)
The size that the screening glass manufactured in Examples and Comparative Examples is cut into 50mm × 50mm, by obtained sample
It placed in the environment of 23 DEG C, 50%RH 24 hours.Later, stripping film is peeled, to the contact adhesive layer surface of exposing,
Using resistrivity meter, (Mitsubishi Che mical Analytech Co., Ltd.s manufacture, name of product " HIRESTA UP
MCP-HT450 types "), determine surface resistivity (Ω/sq) according to JIS K6911.It the results are shown in table 2.In addition, about
The screening glass of comparative example 4, it is more than the value for measuring boundary to be.
[Test example 2](measurement of haze value)
It will be removed on screening glass that stripping film is manufactured from Examples and Comparative Examples, use haze meter (NIPPON
DENSHOKU INDUSTRIES Co., LTD manufactures, name of product " NDH7000 "), according to JIS K7136:2000 determine institute
The haze value of obtained laminated body.It the results are shown in table 2.
[Test example 3](measurement of pressure-sensitive adhesion power)
By the screening glass manufactured in Examples and Comparative Examples cut into length be 100mm, width 25mm, peel stripping off
As test film after piece.At 0.5MPa, 50 DEG C, obtained test film relative to soda-lime glass pressurize within 20 minutes
And after being pasted, (23 DEG C, 50%RH) placed 24 hours under standard environment.Later, according to JIS Z0237:2009,
(23 DEG C, 50%RH) uses cupping machine (OLIENTEC Co., LTD manufactures, name of product " Tensilon under standard environment
UTM-4-100 "), screening glass is removed with 180 ° of peel angle, 300mm/ minutes peeling rates, determines pressure-sensitive adhesion
Power (N/25mm).It the results are shown in table 2.
[Test example 4](evaluation of base material adherence)
It will remove on screening glass that stripping film is manufactured from Examples and Comparative Examples, pressure sensitive adhesive layer cut with cutter
Cross cut mark (50mm × 50mm) is entered.Then, with the pressure sensitive adhesive layer at the position of finger pulp friction incision cut mark, confirm pressure-sensitive
The degree that falls off of adhesive phase, with the following benchmark evaluation adherence of base material.It the results are shown in table 2.
Zero ... pressure sensitive adhesive layer does not fall off from base material, maintains good adherence
A part for △ ... pressure sensitive adhesive layers falls off from base material, but maintains a degree of adherence
× ... pressure sensitive adhesive layer integrally falls off from base material, and adherence is insufficient
[Table 1]
[Table 2]
As shown in Table 2, the excellent antistatic property of screening glass manufactured in embodiment, and the transparency is high, and also it is pressure-sensitive viscous
The base material adherence of mixture layer is also excellent.
Industrial applicibility
Screening glass of the present invention is suitable as in processes such as the processing, assembling, inspection of flexible OLED device
The middle screening glass used.
Claims (8)
1. a kind of antistatic property silicone pressure-sensitive adhesive composition, contains:Silicone pressure-sensitive adhesive and antistatic agent,
It is characterized in that,
The antistatic agent is the ionic compound formed by anion and cation,
The anion and the cation not carbon atoms.
2. antistatic property silicone pressure-sensitive adhesive composition according to claim 1, which is characterized in that the anion
Contain fluorine atom.
3. antistatic property silicone pressure-sensitive adhesive composition according to claim 1, which is characterized in that the cation
For metal cation.
4. antistatic property silicone pressure-sensitive adhesive composition according to claim 3, which is characterized in that the metal sun
Ion is alkali metal.
5. antistatic property silicone pressure-sensitive adhesive composition according to claim 1, which is characterized in that containing being useful for point
Dissipate the dispersant of the antistatic agent.
6. antistatic property silicone pressure-sensitive adhesive composition according to claim 5, which is characterized in that the dispersant
For alkylene glycol dialkylether.
7. a kind of screening glass, for the screening glass for protecting device, which is characterized in that have:
Base material film;And
Pressure sensitive adhesive layer is laminated in a surface side of the base material film,
The pressure sensitive adhesive layer is combined by antistatic property silicone pressure-sensitive adhesive according to any one of claims 1 to 6
Object is formed.
8. screening glass according to claim 7, which is characterized in that the device is flexible devices.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017-073202 | 2017-03-31 | ||
| JP2017073202A JP7037281B2 (en) | 2017-03-31 | 2017-03-31 | Antistatic silicone adhesive composition and protective sheet |
Publications (2)
| Publication Number | Publication Date |
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| CN108690553A true CN108690553A (en) | 2018-10-23 |
| CN108690553B CN108690553B (en) | 2022-03-01 |
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| CN201810028884.XA Active CN108690553B (en) | 2017-03-31 | 2018-01-12 | Antistatic silicone pressure sensitive adhesive composition and protective sheet |
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|---|---|
| JP (1) | JP7037281B2 (en) |
| KR (1) | KR20180111470A (en) |
| CN (1) | CN108690553B (en) |
| TW (1) | TWI773698B (en) |
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| KR20220074737A (en) | 2020-11-27 | 2022-06-03 | 닛토덴코 가부시키가이샤 | Surface protective film |
| KR102606467B1 (en) * | 2021-11-16 | 2023-11-24 | 재단법인한국조선해양기자재연구원 | Cargo loading device for vehicles |
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| JP6339515B2 (en) * | 2015-03-26 | 2018-06-06 | 藤森工業株式会社 | Surface protective film and optical component on which it is bonded |
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2017
- 2017-03-31 JP JP2017073202A patent/JP7037281B2/en active Active
- 2017-10-25 TW TW106136689A patent/TWI773698B/en active
- 2017-12-14 KR KR1020170171885A patent/KR20180111470A/en not_active Ceased
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| JP2008163271A (en) * | 2007-01-04 | 2008-07-17 | Japan Carlit Co Ltd:The | Electroconductivity-imparting agent and electroconductive material |
| CN102051153A (en) * | 2009-11-10 | 2011-05-11 | 信越化学工业株式会社 | Silicone base pressure-sensitive adhesive compositions and film |
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Also Published As
| Publication number | Publication date |
|---|---|
| TWI773698B (en) | 2022-08-11 |
| JP7037281B2 (en) | 2022-03-16 |
| JP2018172610A (en) | 2018-11-08 |
| KR20180111470A (en) | 2018-10-11 |
| CN108690553B (en) | 2022-03-01 |
| TW201842122A (en) | 2018-12-01 |
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