CN106536664A - Acrylic adhesive composition for light-blocking double-sided adhesive member, light-blocking double-sided adhesive member, and image display device - Google Patents
Acrylic adhesive composition for light-blocking double-sided adhesive member, light-blocking double-sided adhesive member, and image display device Download PDFInfo
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- CN106536664A CN106536664A CN201680000401.4A CN201680000401A CN106536664A CN 106536664 A CN106536664 A CN 106536664A CN 201680000401 A CN201680000401 A CN 201680000401A CN 106536664 A CN106536664 A CN 106536664A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/10—Esters
- C08F220/12—Esters of monohydric alcohols or phenols
- C08F220/16—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms
- C08F220/18—Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms with acrylic or methacrylic acids
- C08F220/1808—C8-(meth)acrylate, e.g. isooctyl (meth)acrylate or 2-ethylhexyl (meth)acrylate
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J133/00—Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Adhesives based on derivatives of such polymers
- C09J133/02—Homopolymers or copolymers of acids; Metal or ammonium salts thereof
-
- 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
- C09J133/00—Adhesives based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Adhesives based on derivatives of such polymers
- C09J133/04—Homopolymers or copolymers of esters
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
-
- 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
- C09J2433/00—Presence of (meth)acrylic polymer
Abstract
The present invention is not prone to peeling from an adherend surface comprising a resin, and also has excellent workability during adhesion. The present invention is: an acrylic adhesive composition for a light-blocking double-sided adhesive member, characterized by including an acrylic polymer obtained by copolymerizing a monomer mixture which has a glass transition temperature of 0 DEG C to 80 DEG C when constituting a homopolymer and includes 10-30 wt% of an acrylic monomer not having a crosslinking functional group and 2-7 wt% of a monomer containing a carboxyl group, the weight-average molecular weight of the acrylic polymer being 750,000 to 1,250,000; a light-blocking double-sided adhesive member which uses the acrylic adhesive composition for the light-blocking double-sided adhesive member; and an image display device which uses the light-blocking double-sided adhesive member.
Description
Technical field
The present invention relates to light-proofness two sides adhesion part propylene class adhesive composition, light-proofness two sides adhesion part with
And image display device.
Background technology
In the display device of the non-spontaneous light type of liquid crystal indicator etc., glued using at least two sides with shade function
The two sides such as band adhesion part and paste non-spontaneous light type display unit and the back light units such as LCD assembly unit.For example, make
It is the two sides adhesion part for pasting with LCD assembly unit, back light unit, in patent documentation 1, it is proposed that have
The two sides adhesion part of adhering agent layer, the adhering agent layer are formed by propylene class adhesive composition, and the propylene class sticker is constituted
Thing contains：A) acronal, b) weight average molecular weight be more than 3000, the low-molecular weight polymer composition less than 20000, should
Vitrification point when low-molecular weight polymer composition forms homogeneous polymers is 60 DEG C～190 DEG C, and so that there is ring in intramolecular
The ethylene unsaturated monomer of shape structure is main component.
【Prior art literature】
【Patent documentation】
Patent documentation 1：Japan, JP 2007-254711 publication
On the other hand, being that Liquid crystal module unit etc. is such in non-spontaneous light type display unit drives control using circuit substrate
In the case of the display unit of system, the display unit and back light unit via FPC (Flexible printed circuits, it is soft
Property printed circuit) connection.Also, in the case where Unit two being coupled together via FPC, states of the FPC typically to bend
Unit two are coupled together, therefore the bounce produced due to the FPC for bending is applied between Unit two.Therefore, so
Bounce as by unit and two sides adhesion part adhesion interface peel off power and consumingly act on.
In addition, in the case where polycarbonate substrate is used as the resin substrate for constituting back light unit, in high temperature ring
Under border, easily produce ease gas from makrolon material (due to the gas of the generations such as moisture, residual monomer).Therefore, constituting patch
The adhering agent layer for investing the two sides adhesion part of the adhesive face (polycarbonate substrate) of backlight produces foaming, and meeting generator is not
The problem that good, display quality is reduced.Therefore, in addition to the bounce produced due to above-mentioned FPC, display device is exposed to high temperature
When the inferior condition of environment is superimposed, it is particularly susceptible peeling-off in the stickup boundary face of back light unit and two sides adhesion part.
On the other hand, using two sides adhere part come application unit that at this time, it may be necessary to by two sides adhere part with institute's phase
The shape of prestige, the operation of length cut-out, or by two sides adhere part be pasted onto unit surface and the sticking operation such as fixation.Cause
This, it is desirable to adhesion part in two sides also has the characteristic that can easily and effectively carry out these sticking operations.
The content of the invention
The present invention complete in view of the foregoing, its problem be provide it is a kind of relative to the adhesive face being made up of resin not
The also excellent light-proofness two sides adhesion part propylene class adhesive composition of easily peeling-off and when pasting workability, use
Light-proofness two sides adhesion part is with the light-proofness two sides adhesion part of propylene class adhesive composition and using light-proofness two sides
The image display device of adhesion part.
Above-mentioned problem is reached using the following present invention.
The light-proofness two sides adhesion part propylene class adhesive composition of the present invention has following feature, i.e.,：Comprising making
Monomer mixture copolymerization and the acronal that obtains, propylene class list of the monomer mixture comprising 10wt%～30wt%
The monomer containing carboxyl of body and 2wt%～7wt%, vitrification point when third vinyl monomer constitutes homogeneous polymers are 0
DEG C～80 DEG C, and there is no bridging property functional group；The weight average molecular weight of the acronal is 750,000～1,250,000.
In a light-proofness two sides adhesion embodiment of the part with propylene class adhesive composition of the present invention, it is preferred for
The stickup of the part is made up of polycarbonate resin by adhesive face.
In the light-proofness two sides adhesion other embodiment of the part with propylene class adhesive composition of the present invention, preferably also
Comprising rosin ester resin.
The light-proofness two sides adhesion part of the present invention at least has：Membranaceous base material；And adhering agent layer, the adhering agent layer
Located at least one side side of base material, also, the adhesion of the light-proofness two sides containing present invention part propylene class adhesive composition.
The image display device of the present invention at least has：Non-spontaneous light type display unit；Back light unit；And be configured in non-
The light-proofness two sides adhesion part of the present invention between emissive type display unit and back light unit.
In one embodiment of the image display device of the present invention, preferably non-spontaneous light type display unit is liquid crystal display group
Part unit.
The present invention image display device other embodiment in, preferred back light unit with light-proofness two sides adhesive part
The face of part contact side is made up of polycarbonate resin.
(invention effect)
In accordance with the invention it is possible to provide it is a kind of be difficult it is peeling-off relative to the adhesive face that is made up of resin and when pasting
The also excellent light-proofness two sides adhesion part propylene class adhesive composition of workability, part of being adhered using light-proofness two sides are used
The image display dress of the light-proofness two sides adhesion part of propylene class adhesive composition and part of being adhered using light-proofness two sides
Put.
Description of the drawings
Fig. 1 is the schematic sectional view of of the Rotating fields of the adhesion part for representing present embodiment.
Fig. 2 is other schematic sectional view of the Rotating fields of the adhesion part for representing present embodiment.
Fig. 3 is other schematic sectional view of the Rotating fields of the adhesion part for representing present embodiment.
Fig. 4 is other schematic sectional view of the Rotating fields of the adhesion part for representing present embodiment.
(symbol description)
10、10A、10B、10C、10D：Adhesion part
20、20A、20B、20C、20D：Base material
22R：Reflexive resin film
22S：Light-proofness resin film
24R：Reflecting layer
24S：Light shield layer
24T：Resin film
30：Adhering agent layer
40：Stripping film
Specific embodiment
(below, sometimes referred to simply as part propylene class adhesive composition adhere in the light-proofness two sides of present embodiment
" adhesive composition ") with following feature, i.e.,：Containing the acronal for obtaining monomer mixture copolymerization, this third
The weight average molecular weight of vinyl polymer is 750,000～1,250,000, wherein, the monomer mixture contains：The third of 10wt%～30wt%
The monomer containing carboxyl of vinyl monomer and 2wt%～7wt%, third vinyl monomer constitute vitrification point during homogeneous polymers
For 0 DEG C～80 DEG C, and no bridging property functional group.
The adhesive composition of present embodiment contains acronal as main component.The acronal
It is 750,000 using the weight average molecular weight that GPC (Gel Permeation Chromatography, gel permeation chromatography) method is measured
～125 ten thousand, preferably 800,000～1,200,000, more preferably 900,000～1,000,000.When weight average molecular weight is less than 750,000, make having
In the light-proofness two sides adhesion part of the adhering agent layer formed with the adhesive composition of present embodiment, adhering agent layer is easy
Cross and glue.Accordingly, it is difficult to light-proofness two sides adhesion part is cut to desired shape or length.In addition, working as Weight-average molecular
When amount is more than 1,250,000, as adhering agent layer is really up to the mark, viscosity is greatly reduced.That is, when weight average molecular weight is in 750,000～1,250,000
When outside scope, light-proofness two sides adhere part cutting off processing when and paste when workability reduce.
In addition, (a) third vinyl monomer for the copolymerization of acronal does not have bridging property functional group, in addition, structure
It it is 0 DEG C～80 DEG C into vitrification point during homogeneous polymers.By making vitrification point for more than 0 DEG C, it is difficult from being made up of resin
Adhesive face it is peeling-off, especially relative to by be susceptible in high temperature environments escape gas (outgas) polycarbonate resin
The adhesive face of composition is not easy to peeling-off.In addition, by making vitrification point for less than 80 DEG C, being prevented from due to adhering agent layer
It is really up to the mark and reduce viscosity, therefore, it is possible to avoid workability when pasting from reducing.It is preferred that vitrification point is 0 DEG C～50 DEG C, it is more excellent
Elect 0 DEG C～30 DEG C as.In addition, in present specification, " bridging property functional group " can specifically enumerate carboxyl, hydroxyl, amino,
Amide groups, cyano group, sulfydryl etc..
As above-mentioned (a) the third vinyl monomer, can be preferably with acrylic acid methyl ester..In addition, in addition, can also arrange
Lift alkyl (methyl) acrylic monomerss, the cycloalkyl (methyl) of the cycloalkyl with carbon number 3～7 of the alkyl with carbon number 1～7
Vitrification point in acrylic monomerss, aralkyl (methyl) acrylic monomerss of the aralkyl with carbon number 7～9 is 0 DEG C～80
Monomer in the range of DEG C etc..As the concrete example of these acrylate monomers, such as, in addition to aforesaid propylene acid methyl ester, go back
Isobutyl methacrylate, tetrahydrochysene methyl methacrylate, n- butyl methacrylates, cyclohexyl, benzyl ester etc. can be enumerated.
On the other hand, as the monomer of (b) containing carboxyl of the copolymerization for acronal, as long as in intramolecular
Material containing carboxyl, can be any monomer, not do particular restriction, generally particularly preferably use acrylic acid.
Acronal is the polymer for obtaining monomer mixture copolymerization, and the monomer mixture is included：(a)
Third vinyl monomer of 10wt%～30wt%, the monomer containing carboxyl of (b) 2wt%～7wt%.By by (a) propylene class list
The combination of monomers of body and (b) containing carboxyl is used, and acronal can be made to play a part of sticker.
In addition, be more than 10wt% by the mixed proportion for making (a) third vinyl monomer, it is difficult relative to being made up of resin
Adhesive face is peeling-off, especially, viscous relative to what is be made up of the polycarbonate resin for being susceptible to ease gas in high temperature environments
Attached face is not easy to peeling-off.In addition, being below 30wt% by the mixed proportion for making (a) third vinyl monomer, will not make to be obtained
The adhering agent layer for obtaining is really up to the mark, can make it have appropriate viscosity.Further, by making the mixing ratio of the monomer of (b) containing carboxyl
Example is more than 2wt%, can give appropriate coherency to the adhering agent layer for being obtained, can make it have good permanent load
Peel off patience.In addition, being below 7wt% by the mixed proportion for making the monomer of (b) containing carboxyl, it is obtained in that and is suitable for pasting
The viscosity of operation.Additionally, it is preferred that the mixed proportion of (a) third vinyl monomer is 10wt%～25wt%, preferably (b) is containing carboxyl
The mixed proportion of monomer is 3wt%～6wt%.
In addition, in the copolymerization of acronal, and with above-mentioned (a) the third vinyl monomer and the list of (b) containing carboxyl
(c) other monomers beyond body, the mixed proportion of (c) other monomers in monomer mixture is except (a) the third vinyl monomer
Surplus beyond the combined amount of combined amount and the monomer of (b) containing carboxyl, i.e. 63wt%～88wt%.As (c) other lists
Body, can be from the known monomer of the copolymerization for adhesion polymer (it should be noted that being except belonging to (a) propylene class
Monomer beyond monomer and the monomer of (b) containing carboxyl) in suitably selected, such as acrylic acid 2- ethyl hexyls can be enumerated
Base, propylene acid butyl, 2- hydroxy ethyl methacrylates, 4- hydroxybutyl acrylates, acrylamide etc..
In addition, used as (c) other monomers, preferably together with the monomer of above-mentioned common low-molecular-weight, a small amount of use has
The monomer (polymeric monomer) of the high molecular of the functional group that can be polymerized.As such polymeric monomer, the monomer that can be listed below：
As terminal functional group, with methylacryloyl and/or dihydroxy etc., as a part of (segment), with isobutene.
Sour methyl ester, styrene-acrylonitrile or butyl propyleneglycol acid esters etc., the number-average molecular weight of the monomer is 3000～10000 or so.Separately
Outward, in the case of using polymeric monomer, the mixed proportion in preferred monomers mixture is 0.5wt%～5wt% or so.
In addition, in the adhesive composition of present embodiment, in addition to acronal, it is also possible to as needed
Containing other compositions.In this case, as other compositions, preferably use rosin ester resin and resin is given as adhesion, especially
Preferably use polymeric rosin ester resin resin is given as adhesion.As the composition for constituting adhesive composition, except propylene class
Also and use rosin ester resin beyond polymer, so as to for for example generally for propylene class sticker be it is difficult paste it is viscous
The olefines adherends such as the polyethylene of attached body, polypropylene can also play good stickup (cohesiveness), it is possible to increase be obtained
The permanent load of the adhering agent layer for obtaining peels off patience.In the case of using rosin ester resin as other compositions, relative to 100 weights
The acronal of amount part, the combined amount of rosin ester resin are preferably greater than 0 weight portion and are 35 weight portions, more preferably 5 weights
Amount part～25 weight portion, more preferably 15 weight portion～25 weight portions.
In addition, the adhesive composition of present embodiment is used to constitute at least adhesion of the light-proofness two sides with shade function
The adhering agent layer of part, therefore as other compositions, it is also possible to contain in the range of the function of without prejudice to adhering agent layer in right amount
The materials with light-proofness such as black class color material.In addition, going back in addition to shade function in light-proofness two sides adhesion part
In the case of with reflection function, as other compositions, it is also possible to contain in the range of the function of without prejudice to adhering agent layer in right amount
There are white group color material, silver color class color material etc. that there is reflexive material.
The adhesive composition of present embodiment described above can be used in the stickup to the various surfaces of solids, preferably use
In the stickup of the part (resin substrate etc.) being made up of resin to adhesive face, it is especially preferred for use in adhesive face by polycarbonate resin
The stickup of the part (polycarbonate substrate etc.) that fat is constituted.
Then, below the light-proofness two sides adhesion part of the adhesive composition using present embodiment is illustrated.
Light-proofness two sides adhesion part (below, sometimes referred to simply as " adhesion part ") of present embodiment at least has membranaceous base
The adhering agent layer of material, the adhesive composition containing present embodiment.In addition, in the adhesion part of present embodiment, in base
The two sides of material is provided with adhering agent layer, but as long as containing this reality in the adhering agent layer of at least side in the two adhering agent layers
Apply the adhesive composition of mode.However, being typically based on sight with can not differentiating between surface and the back side using adhesive part part
Point, the adhesive composition containing present embodiment particularly preferably in the adhering agent layer on two sides of base material is respectively arranged on.
In addition, the adhesion part of present embodiment at least have block surface side from from the surface side of a side to the opposing party and
To the saturating shade function of its reciprocal light.The shade function only can be played by base material, it is also possible to only by located at base material
Two surface sides or the adhering agent layer of one side side play, it is also possible to by base material and located at the viscous of two surface sides or one side side of base material
The combination for oxidant layer is played.Further, the adhesion part of present embodiment is in addition to shade function, it is possible to have to from a side
The reflection function that reflected of the incident light in surface side.The reflection function only can be played by base material, it is also possible to only by being only located at
The adhering agent layer of the surface side of one side of base material is played, it is also possible to the adhering agent layer of the surface side of a side of base material is located at by base material and only
Combination play.
The Rotating fields of base material do not do particular determination, can be single layer structure, or more than 2 layers of multiple structure.Base
The thickness of material does not do particular restriction yet, for example, can suitably select from 1 μm～3000 μm of scope.Base material at least uses resin
The film member such as film, metal film, the film being made up of fibrous materials such as paper pulp fibers, in addition, can be membranaceous at this as needed
The one or two sides of part is appropriately arranged with printing layer, metal level etc..
Here, as film member, particularly preferably using resin film.As resin film, can be suitably using poly- to benzene two
Resin film known to formic acid glycol ester film (PET film), polyethylene film, polypropylene screen etc..In addition, common resin film does not have
Enough light-proofness and reflexive.Therefore, in the case where light-proofness is given to resin film itself, divide in resin film matrix
Dissipate containing black class color materials such as black pigments, in the case of reflexive to resin film imparting itself, in resin film matrix
Middle dispersion is containing silver color class color materials such as white group color material or silver such as Chinese whites.In addition, right
Resin film itself simultaneously give light-proofness and it is reflexive in the case of, can be laminated using the resin film with light-proofness and tool
There is reflexive resin film.
As for giving light-proofness, reflexive and the color material that uses, known pigment, dyestuff can be suitably used
Deng specifically, color material illustrated below can be enumerated.First, as black class color material, for example, carbon can be enumerated
Black, graphite, copper oxide, manganese dioxide, nigrosine, perylene are black, titanium is black, phthalocyanine is black, activated carbon, ferrite, four oxidation three
Rust, chromium oxide, molybdenum bisuphide, combined oxidation species black pigment, the organic black pigment of Anthraquinones etc..These black class colors
Material can be used alone or be used in combination of two or more.In addition, in order to obtain the shading same with black class color material
Property, black class color material can be replaced, using utilizing subtractive colour mixture, cyano group, magenta, yellow this 3 color color material are mixed
And the blend color material for obtaining.
As white group color material, such as titanium oxide, Zinc Oxide, aluminium oxide, silicon oxide, zirconium oxide, oxygen can be enumerated
Change magnesium, calcium oxide, stannum oxide, Barium monoxide, Cs2O, yittrium oxide, magnesium carbonate, Calcium Carbonate, brium carbonate, zinc carbonate, aluminium hydroxide,
Calcium hydroxide, magnesium hydroxide, zinc hydroxide, aluminium silicate, magnesium silicate, calcium silicates, barium sulfate, calcium sulfate, barium stearate, oxidation
It is zinc, zinc sulfide, Talcum, silicon dioxide, aluminium oxide, clay, Kaolin, sour titanium, Muscovitum, Gypsum Fibrosum, white carbon, kieselguhr, swollen
The inorganic white group color material such as profit soil, Griffith's zinc white., zeolite, sericite, halloysite, propylene resin particle, polyphenyl
Vinyl resins particle, polyurethane resin particle, amide resin particle, polycarbonate resin particle, silicon
Organic white group color material such as ketone resins particle, urea-formaldehyde resin particle, tripolycyanamide resin particle etc..
As white group color material, it is also possible to use fluorescent whitening agent, as the fluorescent whitening agent, can be from known fluorescent brightening
Suitably select in agent.These white group color materials can be used singly or in combination of two or more.
In addition, as silver color class color material, it is also possible to enumerate the metal of such as flash of light such as silver, aluminum property, laminar
The surface of the flaky particles such as glass particle apply metal film, metal oxide film and there is flash of light pigment of flash of light property etc..
These silver color class color materials can be used alone or be used in combination of two or more.
In addition, arrange printing layer by one or two sides in resin film, base material can be given light-proofness or with screening
Photosensitiveness gives reflexive together.For example on the face of a side of resin film using dispersion containing black class color material ink and shape
Into the printing layer (light shield layer) of light-proofness, and it is possible to contain white group face using dispersion on the face of the opposing party as needed
The ink of color material or silver color class color material and form reflexive printing layer (reflecting layer).Alternatively, it is also possible in resin film
One or two sides arrange by metal evaporations such as aluminum etc. formed metal level.For example, the one side in resin film is arranged by silver, aluminum
In the case of the metal level of composition, reflexive is also obtained in that using the metal level.
Layer of the adhesion part of present embodiment substantially with the order stacking according to adhering agent layer, base material, adhering agent layer
Structure, generally, is additionally provided with the stripping film on the surface of the adhering agent layer for covering both sides.It should be noted that the stripping film
It is stripped when using adhesion part.As stripping film, suitably there can be stripping using the face of the side that at least connects with adhering agent layer
From the resin film of property.In addition, constitute the thickness of each layer of light-proofness two sides adhesion part, using color material during color material
Usage amount suitably can select, with the reflexive that can play light-proofness and further give as needed.In addition, in order to true
Enough light-proofness are protected, the transmitance of the adhesion part of preferred present embodiment is less than 0.5%, more preferably less than 0.3%,
More preferably less than 0.1%.In addition, to light-proofness two sides adhesion part also give it is reflexive in the case of, this enforcement
The reflectance of the adhesion part of mode is preferably more than 60%, more preferably more than 70%, more preferably more than 80%.
Fig. 1～Fig. 4 is the schematic sectional view of of the Rotating fields of the adhesion part for representing present embodiment.Shown in Fig. 1
Adhesion part 10A (10) be provided with using the adhesive composition of present embodiment on the two sides of base material 20A (20) and formed
Adhering agent layer 30, also, be provided with the stripping film 40 of resin film, to be covered each by each adhering agent layer 30 and be provided with base
The face of the contrary side in the side of material 20A.Here, base material 20A is by playing a role as light shield layer containing black class color material
The resin film (light-proofness resin film) of material is constituted.In addition, adhesion part 10B (10) shown in Fig. 2 is except the Rotating fields of base material 20
Beyond different this point, there are same Rotating fields with the adhesion part 10A shown in Fig. 1.Here, the base material 20B shown in Fig. 2
(20) by being laminated the resin film containing black class color material (light-proofness resin film 22S (light shield layer)) and containing white group face
The duplexer of the resin film (reflexive resin film 22R (reflecting layer)) of color material or silver color class color material is constituted.
In addition, adhesion part 10C (10) shown in Fig. 3 is in addition to the Rotating fields difference this point of base material 20, with
The part 10A same Rotating fields of adhesion shown in Fig. 1.Here, the base material 20C (20) shown in Fig. 3 is to be made up of following layer
Duplexer：It is common that there is no light-proofness, reflexive resin film 24T；Located at the face of a side of resin film 24T, by making
The light shield layer 24S that the printing layer formed with the ink containing black class color material is constituted；Located at the opposing party of resin film 24T
Face, the printing layer formed using the ink containing white group color material or silver color class color material, or by by AM aluminum metallization
The reflecting layer 24R that the metal level formed on metal etc. is constituted.In addition, adhesion part 10D (10) shown in Fig. 4 is except base material 20
Rotating fields difference this point beyond, there are same Rotating fields with the adhesion part 10C shown in Fig. 3.Here, shown in Fig. 4
Base material 20D (20) be the duplexer being made up of following layer：It is common that there is no light-proofness, reflexive resin film 24T；If
In the light shield layer that the two sides of resin film 24T, the printing layer formed by the ink containing black class color material is used are constituted
24S。
The shape of the in-plane of the adhesion part of present embodiment does not do particular determination, for example, except banding (tape
Shape), beyond the simple shape such as square shape, or with being generally corresponding to the contour shape of the adhesive face of pasted objects thing
Ring-type of peripheral shape etc..
The adhesion part of present embodiment is generally preferable for non-spontaneous light type illustrated cell, is especially preferred for liquid crystal
The stickup of display module unit and back light unit, as long as require shading is at least carried out between two parts as pasted objects
Purposes, it is also possible to for the purposes beyond such use.In addition, viscous with back light unit for non-spontaneous light type illustrated cell
The adhesion part of the present embodiment of patch also have as illustrated in Fig. 2, Fig. 3 it is reflexive in the case of, in order to further
The brightness of back light unit is improved, the face of reflected light side is attached to into back light unit.
The face (adhesive face) of the side for being configured with non-spontaneous light type display unit of back light unit is usually used Merlon
The resin substrates such as substrate.The image display device made using the adhesion part of present embodiment is aobvious at least with non-spontaneous light type
Show unit, back light unit, the adhesion part of the present embodiment being configured between Unit two (it should be noted that before stickup
In the state of when there is stripping film, remove the stripping film), but be LCD assembly unit etc. in non-spontaneous light type display unit
In the case of like that by the unit of power drives, also with drive circuits such as the FPC being connected with Unit two.In this case, example
When one end and the other end of the FPC of bending are such as connected in Unit two, for example, it is being equipped on smart phone, mobile phone, flat board
In the image display devices of electronic equipment such as computer, notebook computer, wearable terminal, easily produced due to the FPC for bending
Life makes the stronger bounce that Unit two are mutually peeled off.However, in the adhesion part of present embodiment, due to adhering agent layer
It is excellent for the peel resistance of adhesive face (especially, being susceptible to the polycarbonate substrate of ease gas in high temperature environments), therefore
Even if applying stronger bounce on Unit two, it is also possible to prevent Unit two from mutually peeling off.
【Embodiment】
Hereinafter, the present invention will be described to enumerate embodiment, but the invention is not restricted to below example.
(1) the use raw material of adhesive composition modulation
When adhesive composition is modulated, using raw material shown below.Abbreviation, material name of the following presentation using raw material
Deng.
<Monomer>
A (vitrification point of homogeneous polymers is 0 DEG C～80 DEG C and does not have bridging property functional group () third vinyl monomer
Third vinyl monomer)
·MA：Acrylic acid methyl ester. (the vitrification point of homogeneous polymers：10℃)
The monomer of (b) containing carboxyl
·AA：Acrylic acid (the vitrification point of homogeneous polymers：106℃)
C () other monomers (are not belonging to the monomer of above-mentioned (a), (b))
·2-EHA：2- ethylhexyl acrylates (the vitrification point of homogeneous polymers：-70℃)
·BA：Propylene acid butyl (the vitrification point of homogeneous polymers：-54℃)
·2-HEA：2- hydroxy ethyl methacrylates (the vitrification point of homogeneous polymers：-15℃)
·M1：(polymeric monomer with the methylacryloyl that number-average molecular weight is 6000, the vitreous temperature of homogeneous polymers
Degree：100℃)
<Adhesion gives resin>
TF1 (the newtrex esters adhesion of 135 DEG C of softening point gives resin)
TF2 (the newtrex esters adhesion of 160 DEG C of softening point gives resin)
Propylene class TF3 (adhesion made using the operation shown in following gives resin)
- modulating process of propylene class TF3-
By the methacrylic acid cyclohexyl [vitrification point of homogeneous polymers (polymethylacrylic acid cyclohexyl)：66℃]：92
Weight portion, methacrylic acid n- butyl：4 weight portions, acrylic acid：4 weight portions, 2 mercapto ethanol：15 weight portions, two isobutyl of azo
Nitrile：0.2 weight portion, and as the toluene of polymer solvent：100 weight portions are put in separable flask, importing nitrogen, and one
Stir one hour on side.So, after the oxygen in polymeric type is removed, 70 DEG C are warming up to, are reacted three hours, further 75
Reflect two hours at DEG C, obtain solution containing propylene class TF3 of the solid concentration for 50wt%.In addition, the propylene in the solution
The weight average molecular weight of class TF3 is 7000.
<Sclerosing agent>
L-45 (isocyanate hardener, Japanese Soken Chemical ＆ Engineering Co., Ltd.'s system)
(2) making of adhesion part
<Embodiment 1>
- modulation of adhering agent layer formation coating liquid-
In the four-hole boiling flask that can carry out nitrogen displacement, put into 100 weight portions by 2-EHA, MA, AA, 2-HEA and M1
According to the monomer mixture and the ethyl acetate of 150 weight portions of the ratio mixing shown in table 1,68 are heated under nitrogen displacement
DEG C, the azodiisobutyronitrile of 0.07 weight portion is further put into, starts polymerization.After polymerization starts two hours, input of dripping 0.15
The azodiisobutyronitrile of weight portion 10 minutes, then polymerization start 30 minutes 6 hours after 100 weight portion of additional input acetic acid second
Ester and make polymerization, obtain the polymer solution containing acronal.Obtained propylene polymer is measured using GPC method
Weight average molecular weight Mw of compound is 950,000.
Then, by the polymer solution, further mixing adhesion gives resin (TF1), sclerosing agent (L-45), adjust
Adhering agent layer formation coating liquid processed.In addition, now, relative to 100 weight portions for containing in a polymer solution solid into
Divide (acronal), resin (TF1) is given to adhere as 20 weight portions, sclerosing agent (L-45) is the ratio of 0.7 weight portion
Mixing adhesion gives resin (TF1) and sclerosing agent (L-45).
- making of adhesion part-
The adhesion part 10C with the Rotating fields shown in Fig. 3 is made according to following operation.First, as resin film 24T
Using the PET film (Mitsubishi chemistry mylar Co. Ltd. system, M310E12) that thickness is 12 μm, in a side of the PET film
Face on, 10-2To make evaporation thickness become 50nm mode AM aluminum metallization under conditions of Pa, so as to form reflecting layer 24R.Connect down
Come, on the face of the opposing party of PET film, process black ink and form the light shield layer 24S that is made up of the black printed layer of 5 μ m-thicks,
The black ink is Japanese Toyo Boseki K.K's polyester resin BYRON (trade (brand) name) 20SS, 30 weights for mixing 100 weight portions
The Japanese longevity Chemical Co., Ltd black dyes BM1500 of amount part, Nippon Polyurethane Industry Co., Ltd.'s system of 2 weight portions
CORONATEL is formed.Thus, obtain by stack gradually reflecting layer 24R, resin film 24T, light shield layer 24S duplexer constitute
Base material 20C.
Then, on the lift-off processing face for peeling off PET film (Mitsubishi chemistry mylar Co. Ltd. system, MRF38),
Using scraper in the way of dried thickness is 20 μm application adhering agent layer formation coating liquid, so as to obtain in stripping film 40
One side be formed with the sheet material of adhering agent layer 30.Then, after the sheet material to be fitted in the two sides of base material 20C, in room temperature curing seven
My god, so as to obtain the adhesion part 10C shown in Fig. 3.
In addition, measuring reflectance and transmission in the state of stripping film 40 is peeled off from the adhesion part 10C for being obtained
The result of rate, what is measured on the basis of JIS Z 8730 are provided with the reflectance of the 550nm wavelength light in the face of reflecting layer 24R sides
For more than 60%, the total light transmittance measured on the basis of JIS K 7361 is less than 0.5%, is confirmed with enough anti-
Penetrating property and light-proofness.
<Embodiment 2～7, comparative example 1～6>
By the species and mixed proportion of the various raw materials of the modulation for adhering agent layer formation coating liquid according to 1 institute of table
Show beyond being changed, make adhesion part similarly to Example 1.It should be noted that during synthesis acronal
Polymerization time is suitably adjusted as needed, to obtain desired weight average molecular weight.With regard to embodiment 2～6 and comparative example 1～
6 adhesion part, evaluates reflectance and during total light transmittance similarly to Example 1, in any embodiment and compares
In example, reflectance：More than 60%, also, total light transmittance：More than 0.5%, confirm with enough reflexive and screening
Photosensitiveness.
(3) various measurements and test method
<Gpc measurement method>
Measurement apparatus：HLC-8120GPC (Japanese Tosoh Co. Ltd. systems)
GPC rod structures：Following five posts (being Tosoh Co. Ltd. systems)
(1) TSK-GEL HXL-H (guard column)
(2)TSK-GEL G7000HXL
(3)TSK-GEL GMHXL
(4)TSK-GEL GMHXL
(5)TSK-GEL G2500HXL
Sample concentration：Diluted using tetrahydrofuran, to become 1.0mg/cm3
Mobile phase solvent：Tetrahydrofuran
Flow：1.0cm3/min
Column temperature：40℃.
<Permanent load disbonded test>
On the one side of the PET film that thickness is 25 μm, during using with making the adhesion part of each embodiment and comparative example
Same condition forms adhering agent layer, next, the surface of the adhering agent layer for being formed is fitted with PET stripping films, ripening seven
After it, finally it is cut into the size of 20 × 50mm to make test film.Then, the test film for having peeled off PET stripping films is fitted in
It is configured to the lower face side at surface and the back side and the polycarbonate substrate of horizontal direction parallel.Then, attaching in Merlon
The end of one side of the length direction of the test film of substrate, in the state of the load for applying 100g to vertical direction lower side
Under, before measuring the peel distance (mm) of the length direction of test film when placing 180 minutes at 85 DEG C of temperature or falling when
Between (min).Additionally, " good " judge that (zero judges) is peel distance as below 10.0mm.
<Ball viscous (ball tack) test>
Measured using J.Dow methods.Specifically, will be from test film (it should be noted that being cut into the test of width 10cm
Piece) peel off PET stripping films after adhesive sheet in the way of adhering agent layer exposes in the inclined plane that inclination angle is 30 degree, institute
State test film with the test film identical Rotating fields made in permanent load disbonded test.Then, steel ball is made from inclined plane
Upside help starting after, slide on bonding plane (adhering agent layer surface).Now help start distance for 10cm, coasting distance is
10cm.In addition, temperature is 23 DEG C, humidity is 65%RH.Then, change the diameter of steel ball, carry out coasting test, try to achieve in adhesion
The maximum gauge of the steel ball that stopping is slided in face.In addition, a diameter of X/32 inches of the steel ball for using are (it should be noted that X is
Integer in the range of 1～32), the numerical value shown in table 1 represents the value of X.Additionally, " good " judge that (zero judges) is that X values are 6
More than.
<Cutting>
30 punching operations, visual observations adhesion are carried out to the adhesion part of each embodiment and comparative example using cutter
Attachment and section of the agent to cutter.
○：Sticker does not adhere to blade completely, and section is not coarse.
×：Confirm sticker to adhere to blade, section is coarse.
Table 1
Claims (7)
1. a kind of light-proofness two sides is adhered part propylene class adhesive composition, it is characterised in that
The acronal obtained comprising monomer mixture copolymerization is made, the monomer mixture include 10wt%～30wt%
The third vinyl monomer and 2wt%～7wt% the monomer containing carboxyl, third vinyl monomer constitutes glass during homogeneous polymers
It is 0 DEG C～80 DEG C to change temperature, and does not have bridging property functional group；
The weight average molecular weight of the acronal is 750,000～1,250,000.
2. light-proofness two sides according to claim 1 is adhered part propylene class adhesive composition, it is characterised in that
The stickup of the part for being made up of polycarbonate resin to adhesive face.
3. light-proofness two sides according to claim 1 and 2 is adhered part propylene class adhesive composition, and its feature exists
In,
The light-proofness two sides adhesion part propylene class adhesive composition also includes rosin ester resin.
4. a kind of light-proofness two sides is adhered part, it is characterised in that
At least have：
Membranaceous base material；And
Adhering agent layer, the adhering agent layer are located at least one side side of the base material, also, containing the shading described in claim 3
Property two sides adhesion part propylene class adhesive composition.
5. a kind of image display device, it is characterised in that
At least have：
Non-spontaneous light type display unit；
Back light unit；And
The light-proofness two sides being configured in described in the claim 4 between the non-spontaneous light type display unit and the back light unit
Adhesion part.
6. image display device according to claim 5, it is characterised in that
The non-spontaneous light type display unit is LCD assembly unit.
7. image display device according to claim 5, it is characterised in that
The back light unit is made up of polycarbonate resin with the adhere face of component contact side of the light-proofness two sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910405263.3A CN110305606A (en) | 2015-07-06 | 2016-04-20 | Light-proofness two sides adhesion component propylene class adhesive composition, light-proofness two sides adhesion component and image display device |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015135411A JP6341889B2 (en) | 2015-07-06 | 2015-07-06 | Acrylic pressure-sensitive adhesive composition for light-shielding double-sided pressure-sensitive adhesive member, light-shielding double-sided pressure-sensitive adhesive member, and image display device |
| JP2015-135411 | 2015-07-06 | ||
| PCT/JP2016/062537 WO2017006609A1 (en) | 2015-07-06 | 2016-04-20 | Acrylic adhesive composition for light-blocking double-sided adhesive member, light-blocking double-sided adhesive member, and image display device |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910405263.3A Division CN110305606A (en) | 2015-07-06 | 2016-04-20 | Light-proofness two sides adhesion component propylene class adhesive composition, light-proofness two sides adhesion component and image display device |
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|---|---|
| CN106536664A true CN106536664A (en) | 2017-03-22 |
| CN106536664B CN106536664B (en) | 2019-05-07 |
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|---|---|---|---|
| CN201910405263.3A Pending CN110305606A (en) | 2015-07-06 | 2016-04-20 | Light-proofness two sides adhesion component propylene class adhesive composition, light-proofness two sides adhesion component and image display device |
| CN201680000401.4A Active CN106536664B (en) | 2015-07-06 | 2016-04-20 | Light-proofness two sides adhesion component propylene class adhesive composition, light-proofness two sides adhesion component and image display device |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910405263.3A Pending CN110305606A (en) | 2015-07-06 | 2016-04-20 | Light-proofness two sides adhesion component propylene class adhesive composition, light-proofness two sides adhesion component and image display device |
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| Country | Link |
|---|---|
| JP (1) | JP6341889B2 (en) |
| CN (2) | CN110305606A (en) |
| WO (1) | WO2017006609A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114621710A (en) * | 2020-12-10 | 2022-06-14 | 安佐化学有限公司 | Adhesive for invisible car cover and preparation method and application thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7052298B2 (en) * | 2017-11-06 | 2022-04-12 | 東洋インキＳｃホールディングス株式会社 | Optical Adhesives and Optical Adhesive Sheets |
| US20200213139A1 (en) * | 2018-12-28 | 2020-07-02 | Microchip Technology Incorporated | Classifying comparators based on comparator offsets |
| JP7287415B2 (en) * | 2021-03-31 | 2023-06-06 | 大日本印刷株式会社 | decorative material |
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- 2016-04-20 CN CN201910405263.3A patent/CN110305606A/en active Pending
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| CN101037574A (en) * | 2006-03-15 | 2007-09-19 | 日东电工株式会社 | Double-faced pressure-sensitive adhesive tape or sheet, and liquid crystal display apparatus |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN106536664B (en) | 2019-05-07 |
| JP2017014461A (en) | 2017-01-19 |
| WO2017006609A1 (en) | 2017-01-12 |
| CN110305606A (en) | 2019-10-08 |
| JP6341889B2 (en) | 2018-06-13 |
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