CN101941316A - Touch panel is with stacked extruded resin sheet and the surperficial coated panel of touch panel - Google Patents
Touch panel is with stacked extruded resin sheet and the surperficial coated panel of touch panel Download PDFInfo
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- CN101941316A CN101941316A CN2010101122243A CN201010112224A CN101941316A CN 101941316 A CN101941316 A CN 101941316A CN 2010101122243 A CN2010101122243 A CN 2010101122243A CN 201010112224 A CN201010112224 A CN 201010112224A CN 101941316 A CN101941316 A CN 101941316A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
- B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
Abstract
The present invention relates to touch panel with stacked extruded resin sheet and the surperficial coated panel of touch panel.Provide the surface be difficult for to scratch and make and be relatively easy to touch panel with stacked extruded resin sheet and the surperficial coated panel of touch panel.Described touch panel is to form by the surperficial stacked acrylate resin layer of co-extrusion modling in the side that is touched at least of polycarbonate resin with stacked extruded resin sheet.The thickness of described polycarbonate resin is preferably more than 50% of integral thickness.Described touch panel is that surface-coated cured film in the side that is touched of described stacked extruded resin sheet forms with surperficial coated panel.Described cured film preferably has the cured film of marresistance.
Description
Technical field
The present invention relates to be used for the stacked extruded resin sheet and the surperficial coated panel of touch panel.
Background technology
In the picture of the guidance panel of for example auto-navigation system, portable information terminal, industrial machine, PC, portable game etc., used the touch panel that has transparency electrode.As the plate that uses in the touch panel, except thin glass, can also enumerate resinous plate.Touch panel for example has with the direct panel operated of contact or utilize panel that felt pen operates etc. of finger, payes attention to the transparency, resistance to impact, light weight, surperficial difficult scratch resistant.Corresponding with such demand, because resistance to impact, the light weight of thin glass are poor, therefore use resinous plate recently more.
As with the corresponding resinous plate of these demands, in patent documentation 1, put down in writing the polycarbonate resin stackup plate of having folded the TPU layer of hardness 85～95 at least one surface layer of polycarbonate resin plate.In addition, in patent documentation 2, having put down in writing stacking gradually thick 50～300 μ m and pencil hardness on the polymer resin substrate is that active ray cured layer (A) more than the 3H and thick 1～20 μ m and pencil hardness are the stacked body of macromolecule resin that the hard conating (B) more than the 4H forms.
The resinous plate of record is by being laminated in the easy scratch resistant that urethane resin layer on the polycarbonate resin plate can remedy polycarbonate resin plate in the patent documentation 1.But,, deforming with writing words isochronous graph faces such as felt pens so be subjected to the influence of base material polycarbonate resin plate sometimes because the rigidity of polyurethane resin is low.
In addition, the resinous plate of record can improve the hardness of hard conating (B) by going up stacked hard conating (B) at active ray cured layer (A) in the patent documentation 2.But, owing to need on substrate, distinguish stacked active ray cured layer (A) and hard conating (B), so the productivity ratio existing problems.
Patent documentation 1: Japanese kokai publication hei 7-205385 communique
Patent documentation 2: TOHKEMY 2001-322197 communique
Summary of the invention
Problem of the present invention is, provides the surface to be difficult for scratching and make to be relatively easy to touch panel with stacked extruded resin sheet and the surperficial coated panel of touch panel.
The inventor furthers investigate repeatedly in order to solve above-mentioned problem, found that the solution that comprises following formation, thereby has finished the present invention.
(1) the stacked extruded resin sheet of a kind of touch panel forms by the surperficial stacked acrylate resin layer of co-extrusion modling in the side that is touched of polycarbonate resin.
(2) the stacked extruded resin sheet of above-mentioned (1) described touch panel, the thickness of described polycarbonate resin is more than 50% of integral thickness.
(3) above-mentioned (1) or the stacked extruded resin sheet of (2) described touch panel, stacked acrylate resin layer forms on the two sides of described polycarbonate resin.
(4) the stacked extruded resin sheet of each described touch panel in above-mentioned (1)～(3), described acrylate resin layer is formed by methacrylic resin and rubber-like polymer.
(5) the surperficial coated panel of a kind of touch panel, the surface-coated cured film of the side that is touched of each described stacked extruded resin sheet forms in above-mentioned (1)～(4).
(6) the surperficial coated panel of above-mentioned (5) described touch panel, described cured film is the cured film with marresistance.
Therefore stacked extruded resin sheet of the present invention can perform well in the touch panel purposes because the surface is difficult for scratching.In addition, at the surperficial coated panel that the surface-coated cured film of the side that is touched of described stacked extruded resin sheet forms, can perform well in making the purposes of contacts such as the sharp-pointed felt pen of front end.And stacked extruded resin sheet of the present invention is the plate that obtains by co-extrusion modling, need not to distinguish stacked active ray cured layer and hard conating as in the past, so can make with comparalive ease on substrate.
Description of drawings
Fig. 1 illustrates the diagrammatic illustration figure of the touch panel of an embodiment of the present invention with the manufacture method of stacked extruded resin sheet.
Fig. 2 is the summary cross sectional illustration figure that the metallic roll and the resilient roller of an embodiment of the present invention are shown.
Fig. 3 is the summary cross sectional illustration figure that the resilient roller of other embodiment of the present invention is shown.
Symbol description:
1,2 extruders
3 mouthfuls of moulds
The stacked extruded resin sheet of 4 fusions
5 chill rolls
6 metallic roll
7,15 metallic elastic rollers
8,16 beaming rollers
9,17 metal made membranes
10 fluids
The stacked extruded resin sheet of 11 touch panels
The specific embodiment
Stacked extruded resin sheet of the present invention (below, be sometimes referred to as extruded resin sheet) be to form by the surperficial stacked acrylate resin layer of co-extrusion modling in the side that is touched at least of polycarbonate resin, be used for touch panel.
The so-called polycarbonate resin that constitutes above-mentioned polycarbonate resin is that monomeric unit joint portion each other is all by the carbonate group (polymer that O-(C=O)-O-) constitutes.
As above-mentioned polycarbonate resin, for example can enumerate: make dihydric phenol and the carbonylation agent more than a kind more than a kind react the resin that gets by interface polycondensation, melt transesterification process etc.; The resin that the polymerization of carbonic ester prepolymer is got by solid phase ester-interchange method etc.; Make resin that the cyclic carbonate compound polymerization gets etc. by the ring-opening polymerisation method.
As above-mentioned dihydric phenol, for example can enumerate hydroquinones, resorcinol, 4,4 '-dihydroxybiphenyl, two (4-hydroxy phenyl) methane, two { (4-hydroxyls-3, the 5-dimethyl) phenyl } methane, 1, two (4-hydroxy phenyl) ethane of 1-, 1, two (4-the hydroxy phenyl)-1-diphenylphosphino ethanes of 1-, 2, two (4-hydroxy phenyl) propane (common name bisphenol-A) of 2-, 2, two { (4-hydroxy-3-methyl) phenyl } propane of 2-, 2, two { (the 4-hydroxyls-3 of 2-, the 5-dimethyl) phenyl } propane, 2, two { (the 4-hydroxyls-3 of 2-, the 5-dibromo) phenyl } propane, 2, two { (3-isopropyl-4-hydroxyl) phenyl } propane of 2-, 2, two { (4-hydroxyl-3-phenyl) phenyl } propane of 2-, 2, two (4-hydroxy phenyl) butane of 2-, 2, two (4-the hydroxy phenyl)-3-methybutanes of 2-, 2, two (the 4-hydroxy phenyls)-3 of 2-, the 3-dimethylbutane, 2, two (4-the hydroxy phenyl)-2-methybutanes of 4-, 2, two (4-hydroxy phenyl) pentanes of 2-, 2, two (4-the hydroxy phenyl)-4-methylpentanes of 2-, 1, the 1-bis(4-hydroxyphenyl)cyclohexane, 1, two (4-the hydroxy phenyl)-4-isopropyl cyclohexanes of 1-, 1, two (the 4-hydroxy phenyls)-3 of 1-, 3, the 5-trimethyl-cyclohexane, 9, two (4-hydroxy phenyl) fluorenes of 9-, 9, two { (4-hydroxy-3-methyl) phenyl } fluorenes of 9-, α, the adjacent diisopropyl benzene of α '-two (4-hydroxy phenyl), α, diisopropyl benzene between α '-two (4-hydroxy phenyl), α, α '-two (4-hydroxy phenyl) is to diisopropyl benzene, 1, two (the 4-hydroxy phenyls)-5 of 3-, the 7-dimethyladamantane, 4,4 '-dihydroxydiphenylsulisomer, 4,4 '-dihydroxy diphenyl sulfoxide, 4,4 '-dihydroxy diphenylsulfide, 4,4 '-dihydroxy diphenylketone, 4,4 '-dihydroxydiphenyl ether, 4,4 '-dihydroxy diphenyl etc.
Wherein, the preferred use is selected from bisphenol-A, 2, two { (4-hydroxy-3-methyl) phenyl } propane of 2-, 2, two (4-hydroxy phenyl) butane of 2-, 2, two (4-the hydroxy phenyl)-3-methybutanes of 2-, 2, two (the 4-hydroxy phenyls)-3 of 2-, the 3-dimethylbutane, 2, two (4-the hydroxy phenyl)-4-methylpentanes of 2-, 1, two (the 4-hydroxy phenyls)-3 of 1-, 3,5-trimethyl-cyclohexane and α, the dihydric phenol more than a kind between α '-two (4-hydroxy phenyl) in the diisopropyl benzene, more preferably use bisphenol-A separately, perhaps bisphenol-A and 1, two (the 4-hydroxy phenyls)-3,3 of 1-, the also usefulness of 5-trimethyl-cyclohexane, bisphenol-A be selected from 2, two { (4-hydroxy-3-methyl) phenyl } propane and the α of 2-, between α '-two (4-hydroxy phenyl) in the diisopropyl benzene more than a kind dihydric phenol and use.
As above-mentioned carbonylation agent, for example can enumerate haloformate such as bishaloformate of carbonic esters such as carbonyl halide, diphenyl carbonate such as phosgene, dihydric phenol etc.
Acrylic resin as constituting aforesaid propylene acid resin layer generally uses methacrylic resin.Described methacrylic resin can be that methyl methacrylate units is the imperplex of 100 weight %, also can be methyl methacrylate and can with the copolymer of other monomers more than a kind of this methyl methacrylate copolymer.Wherein, it preferably is the resin of principal component with the methyl methacrylate units, specifically, preferably contain the polymethyl methacrylate resin of the above methyl methacrylate units of 50 weight %, more preferably contain the polymethyl methacrylate resin of the above methyl methacrylate units of 70 weight %.
As above-mentioned can with the example of other monomers of methyl methacrylate copolymer, for example can enumerate the methyl acrylic ester beyond the methyl methacrylates such as EMA, butyl methacrylate, cyclohexyl methacrylate, phenyl methacrylate, benzyl methacrylate, methacrylic acid 2-Octyl Nitrite, methacrylic acid 2-hydroxyl ethyl ester; Esters of acrylic acids such as methyl acrylate, ethyl acrylate, butyl acrylate, cyclohexyl acrylate, phenyl acrylate, benzyl acrylate, 2-EHA, acrylic acid 2-hydroxyl ethyl ester.In addition, can also enumerate styrene, substituted phenylethylene class, for example halogenated styrenes such as chlorostyrene, bromstyrol class; Ring-alkylated styrenes such as vinyltoluene, AMS class etc.And then, can also enumerate unsaturated acids such as methacrylic acid, acrylic acid, acrylonitrile, methacrylonitrile, maleic anhydride, phenyl maleimide, cyclohexyl maleimide etc.
Acrylate resin layer preferably contains rubber-like polymer.Thus, can make stacked extruded resin sheet be difficult for breaking.Preferred especially by mixed rubber shaped polymer in methacrylic resin acrylate resin layer made by methacrylic resin and rubber-like polymer forms layer.As above-mentioned rubber-like polymer, for example can enumerate the acrylic acid series multilayer structure polymer, make 20～95 parts by weight of acrylic is graft copolymer of forming of the rubber-like polymer glycerol polymerization of ethylene unsaturated monomers such as unsaturated monomer and 5～80 weight portions etc.
Aforesaid propylene acid is that multilayer structure polymer preferably contains the rubber elastic layer about 20～60 weight %, preferably has hard layer as outermost layer, also preferably further contains hard layer as innermost layer.
Above-mentioned rubber elastic layer preferably vitrifying point (Tg) less than the layer of 25 ℃ acrylic acid series polymeric compounds, particularly, preferably make the layer of the crosslinked polymer that forms of more than one monofunctional monomers that is selected from lower alkyl acrylate, methacrylic acid lower alkyl esters, acrylic acid low-grade alkoxy alkyl ester, acrylic acid cyano group ethyl ester, acrylamide, acrylic acid hydroxyl low-grade alkyl ester, methacrylic acid hydroxyl lower alkyl esters, acrylic acid and the methacrylic acid with polyfunctional monomers such as allyl methacrylates.As low alkyl group, can enumerate the straight or branched alkyl of about 1～8 of carbon number, as low-grade alkoxy alkyl, can enumerate the straight or branched alkoxyalkyl of about 1～8 of carbon number.
Above-mentioned hard layer preferably Tg is the layer of the acrylic acid series polymeric compounds more than 25 ℃, particularly, preferably make have carbon number be 1～4 alkyl the alkyl methacrylate homopolymerization or with its homopolymers that polymerization gets as main component or copolymer.When making with alkyl methacrylate as the copolymer of main component, as copolymer composition, can use other alkyl methacrylate or monofunctional monomer such as alkyl acrylate, styrene, substituted phenylethylene, acrylonitrile, methacrylonitrile, and then can also add polyfunctional monomer and make cross-linked polymer.
The acrylic acid series multilayer structure polymer is recorded in that for example special public clear 55-27576 communique, spy are opened flat 6-80739 communique, the spy opens in clear 49-23292 communique etc.
In the graft copolymer that the rubber-like polymer glycerol polymerization of above-mentioned ethylene unsaturated monomer that makes 20～95 weight portions and 5～80 weight portions forms, as above-mentioned rubber-like polymer, can use for example diene series rubbers such as polybutadiene rubber, acrylonitrile/butadiene copolymer rubber, styrene/butadiene copolymers rubber; Acrylic rubber such as butyl polyacrylate, polyacrylic acid propyl ester, polyacrylic acid 2-Octyl Nitrite; Ethylene/propene/non-conjugated diene is a rubber etc.In addition, as the ethylene unsaturated monomer that is used for carrying out graft copolymerization, for example can enumerate styrene, acrylonitrile, (methyl) alkyl acrylate etc. with this rubber-like polymer.These graft copolymers for example are documented in, and the spy opens in clear 55-147514 communique, the special public clear 47-9740 communique etc.
When making rubber-like polymer be scattered in acrylic resin,, preferably make rubber-like polymer usually with 3～150 weight portions, preferably disperse with the ratio of 5～50 weight portions with respect to acrylic resin 100 weight portions.If the amount of rubber-like polymer is too many, then case hardness reduces sometimes.In addition, if the amount of rubber-like polymer very little, then be difficult to obtain the effect that makes stacked extruded resin sheet be difficult for breaking.
In addition, in polycarbonate resin and acrylate resin layer, can add more than one additive such as for example light diffusing agent, delustering agent, dyestuff, light stabilizer, ultra-violet absorber, antioxidant, releasing agent, fire retardant, antistatic agent respectively.
Stacked extruded resin sheet of the present invention is by adopting co-extrusion modling with polycarbonate resin and stacked integrated manufacturing of acrylate resin layer.This co-extrusion modling can followingly be carried out, that is, use 2 or 3 single shafts or biaxial extruder, with the material of the material of above-mentioned polycarbonate resin and acrylate resin layer respectively behind the melting mixing, Jie is undertaken stacked by feed piece mouth mould, branch manifold mouth mould etc., carry out co-extrusion modling thus.
For example use that roller unit etc. carries out cooling curing with the stacked extruded resin sheet of stacked incorporate sheet fusion, obtain stacked extruded resin sheet of the present invention.Below, with reference to accompanying drawing, an embodiment of the manufacture method of stacked extruded resin sheet of the present invention is elaborated.
Fig. 1 is the diagrammatic illustration figure of manufacture method that the stacked extruded resin sheet of present embodiment is shown.Fig. 2 is the summary cross sectional illustration figure that the metallic roll and the resilient roller of present embodiment are shown.As shown in Figure 1, at first, with different extruder 1,2 polycarbonate resin and acrylic resin limit are heated and melting mixing respectively, the mouth mould 3 that the limit is used from co-extrusion modling is extruded, and carries out stacked integrated.
Then, will be clamped in along general horizontal direction from the stacked extruded resin sheet 4 of the sheet fusion of mouth mould 3 coextrusion and relatively cool off 2 chill rolls 5 of configuration, thereby obtain touch panel with stacked extruded resin sheet 11.
The metallic roll 6 of high rigidity is the take up roll that the stacked extruded resin sheet 11 of sheet after being held between metallic roll 6 and the metallic elastic roller 7 is reeled.Metallic roll 6 is not particularly limited, can adopt in the past since in extrusion molding employed common metallic roll.As concrete example, can enumerate slotter (drilled roll), propellers etc.The surface state of metallic roll 6 for example can be a minute surface, and decorative pattern, concavo-convex etc. also can be arranged.
Metallic elastic roller 7 has and is roughly beaming roller 8 and columnar metal made membrane 9 cylindric and that be set to rotate freely, this metal made membrane 9 disposes in the mode of the outer peripheral face of this beaming roller 8 that is covered, and contact with the stacked extruded resin sheet 4 of fusion, enclose fluid 10 between these beaming rollers 8 and metal made membrane 9, metallic elastic roller 7 can demonstrate elasticity thus.Above-mentioned beaming roller 8 is not particularly limited, for example forms by stainless steel etc.
Metal made membrane 9 is for example formed by stainless steel etc., as its thickness, is preferably about 2～5mm.This metal made membrane 9 preferably has bendability, flexible etc., does not preferably have the jointless structure of weld part.Metallic elastic roller 7 excellent in te pins of durability with such metal made membrane 9, and if metal made membrane 9 mirror-polishings then can similarly be used with common mirror roller, if to metal made membrane 9 give decorative pattern, concavo-convex then become can its shape of transfer printing roller, therefore easy-to-use.
This metal made membrane 9 is fixed by the both ends of beaming roller 8, and enclosing between beaming roller 8 and metal made membrane 9 has fluid 10.As fluid 10, for example can enumerate water, wet goods.By controlling the temperature of this fluid 10, can carry out temperature control to metallic elastic roller 7.Said temperature control can be adopted known control methods such as for example PID control, ON-OFF control.In addition, can also use gases such as air to replace fluid 10.
Between such metallic roll 6 and metallic elastic roller 7 during the stacked extruded resin sheet 4 of clamping fusion, it is concavity that metallic elastic roller 7 is situated between by the stacked extruded resin sheet 4 of fusion, along the outer peripheral face strain of metallic roll 6, and metallic elastic roller 7 and metallic roll 6 are situated between and are contacted by the contact length L of the stacked extruded resin sheet 4 of fusion with regulation.
As above-mentioned contact length L, be 1～20mm, preferred 1～10mm, more preferably 1～7mm is for well.Making above-mentioned contact length L is setting, and thickness that for example can be by adjusting metal made membrane 9, the enclosed volume of fluid 10 wait arbitrarily and carry out.Need to prove that so-called above-mentioned contact length L is meant to connect the be situated between length of straight line of the point that the point that begun to contact by the stacked extruded resin sheet 4 of fusion contacts with end of metallic elastic roller 7 and metallic roll 6.
When metallic elastic roller 7 and metallic roll 6 Jie are contacted with contact length L by the stacked extruded resin sheet 4 of fusion, metallic roll 6 is carried out pressing in the mode that face contacts to the stacked extruded resin sheet 4 of fusion with metallic elastic roller 7, is held in the stacked extruded resin sheet 4 of fusion between these rollers and is evenly added on one side and be pressed into planar one side and made film.When making film like this, can be suppressed at residual deformation in the stacked extruded resin sheet 11, have the heat shrink characteristic of resulting stacked extruded resin sheet 11 and the trend that length of delay reduces.Therefore, for this stacked extruded resin sheet 11, when using, has the effect that suppresses the touch panel distortion in the harsh place of temperature environment.
Specifically, when stacked extruded resin sheet 11 was placed 30 minutes under 160 ℃ thermal environment, stacked extruded resin sheet 11 was being extruded the shrinkage factor S1 of direction (%) and at the shrinkage factor S2 of width (%) 0～5% the trend that reaches is being arranged all.If shrinkage factor S1, S2 for negative, promptly less than 0%, can expand when then heating stacked extruded resin sheet, when being covered cured film on this stacked extruded resin sheet, this cured film may produce be full of cracks and break.In addition, if shrinkage factor S1, S2 surpass 5%, shrink when then heating stacked extruded resin sheet and increase, the yield of the product that obtains reduces.For the computational methods of above-mentioned shrinkage factor S1, S2, after narrate.
In addition, the length of delay of stacked extruded resin sheet 11 has the following trend of 200nm that reaches.When on liquid crystal panel, loading touch panel, be below the 200nm, the painted and visible phenomenon of touch panel can not take place yet even then wear polariscope if constitute the length of delay of the stacked extruded resin sheet 11 of this touch panel.Above-mentioned length of delay is the value that adopts small area birefringence instrumentation to get as described later.
On the basis of heat shrink characteristic that reduces stacked extruded resin sheet 11 and length of delay, when carrying out moulding, preferably make the stacked extruded resin sheet 4 of fusion before cooling curing and even in the cooling curing process by two roller clampings in that the stacked extruded resin sheet 4 of fusion is held on metallic roll 6 and metallic elastic roller 7.Specifically, heat distortion temperature (Th) with respect to polycarbonate resin or acrylic resin, comparatively ideal is to make the surface temperature (Tr) of metallic roll 6 and metallic elastic roller 7 be (Th-20 ℃)≤Tr≤(Th+20 ℃), preferably (Th-15 ℃)≤Tr≤(Th+10 ℃), the more preferably scope of (Th-10 ℃)≤Tr≤(Th+5 ℃).
On the other hand, surface temperature (Tr) is during than (Th-20 ℃) low temperature, and shrinkage factor S2 has the trend that diminishes.In addition, surface temperature (Tr) is during than (Th+20 ℃) high temperature, and shrinkage factor S1 has the trend of increase, and length of delay also has the trend of increase.In addition, the residual vestige of peeling off from roller on stacked extruded resin sheet 11 is arranged and diminish the trend of outward appearance.
For surface temperature (Tr), be benchmark with the resin that heat distortion temperature (Th) is high in polycarbonate resin and the acrylic resin.(Th) is not particularly limited as heat distortion temperature, is generally about 60～200 ℃.Heat distortion temperature (Th) is the temperature of measuring according to ASTM D-648.
The stacked extruded resin sheet 11 of sheet after being held between metallic roll 6 and the metallic elastic roller 7 after being wound in metallic roll 6, while cool off and access to conveying roller by the not shown roller that accesses, obtains stacked extruded resin sheet 11 thus.
Below, other embodiment of the manufacture method of stacked extruded resin sheet of the present invention is described.Fig. 3 is the summary cross sectional illustration figure that the resilient roller of present embodiment is shown.In addition, in Fig. 3, symbol and the omission explanation identical to the component part mark identical with above-mentioned Fig. 1, Fig. 2.
As shown in Figure 3, the metallic elastic roller 15 of present embodiment is to be roughly cylindric and to be made as the metallic elastic roller that the outer peripheral face of the beaming roller 16 that rotates freely forms with 17 linings of columnar metal made membrane.
Beaming roller 16 is the rubber rollers that formed by rubber such as for example silicon rubber, and metallic elastic roller 15 can show elasticity thus.By adjusting the hardness of above-mentioned rubber, can make above-mentioned contact length L is setting.
Metal made membrane 17 is for example formed by stainless steel etc., as its thickness, about preferred 0.2～1mm.
Can carry out temperature controlled formation for metallic elastic roller 15 is become, for example can be on metallic elastic roller 15 the mounting support chill roll.Other formation is identical with an above-mentioned embodiment, thereby omits explanation.
Stacked extruded resin sheet of the present invention can be the plate of 2 layers of structure only forming at the surperficial stacked acrylate resin layer of the side that is touched of polycarbonate resin, also can be the plate of the 3-tier architecture that forms at the stacked acrylate resin layer in the two sides of polycarbonate resin.
Here, the plate of 3-tier architecture reduces the situation of easily breaking because of the difference of the kind of the thickness of acrylate resin layer, acrylic resin also has the face impact sometimes.Therefore, when stacked extruded resin sheet is made 3-tier architecture, preferred dispersion rubber shaped polymer in acrylate resin layer.Thus, the face impact that can suppress stacked extruded resin sheet reduces and the situation of easily breaking.
On the other hand, when stacked extruded resin sheet is made 3-tier architecture, the trend that has rigidity to improve.Sometimes when operating touch panel, be easy to prevent distortion.In addition, when cured film being set on the two sides of this stacked extruded resin sheet, also can be at the curing materials of two sided coatings same composition.In addition, when stacked extruded resin sheet was made 3-tier architecture, the composition of two acrylate resin layers can be the same or different.
Stacked extruded resin sheet of the present invention is generally sheet, and its thickness is generally 0.1～2mm, preferred 0.2～1mm, more preferably 0.3～0.7mm.
In addition, in the stacked extruded resin sheet of the present invention, the thickness of polycarbonate resin is preferably more than 50% of integral thickness, and is more preferably more than 70%, further preferred more than 80%.Thus, stacked extruded resin sheet more is difficult for breaking.In addition, the thickness of polycarbonate resin is preferably below 95% usually with respect to the thickness of integral body, more preferably below 90%.
When paying attention to the case hardness of acrylate resin layer, its thickness is preferably more than the 10 μ m, more preferably 20～200 μ m.In addition, during for 3-tier architecture, the thickness of two acrylate resin layers mutually can be identical, also can be different.The thickness of stacked extruded resin sheet can wait by the interval of the thickness of the stacked extruded resin sheet 4 of fusion extruded from above-mentioned mouthful mould 3,2 chill rolls 5 and adjust.
During the human finger touch touch panel of operating touch panel, the acrylate resin layer of stacked extruded resin sheet of the present invention is preferably as being touched face.When the people of operating touch panel uses the sharp-pointed felt pen of front end etc. to touch touch panel, the preferred surperficial coated panel that uses the surface-coated cured film in the side that is touched of stacked extruded resin sheet of the present invention to form.
Be provided with panel excellence aspect durability of cured film on the surface.In addition, for the layer of polycarbonate side,, also can cured film be set on its surface though do not use basically as touch face.
The surperficial coated panel of touch panel of the present invention is that the surface-coated cured film in the side that is touched of the stacked extruded resin sheet of the invention described above forms.As above-mentioned cured film, for example can enumerate the film that forms by heat-curing resin, ionization radial line cured resin etc.
Below, the resin combination that also will contain heat-curing resin, ionization radial line cured resin etc. is called " hardening resin composition ".
As above-mentioned heat-curing resin, for example can enumerate phenolic resins, urea resin, diallyl phthalate resin, melamine resin, guanamine resin, unsaturated polyester (UP) is resin, polyurethane series resin, epoxy resin, amino-alkyd resin, melamine-urea cocondensation resin, silicones, polyorganosiloxane resin etc.In the above-mentioned heat-curing resin, can add for example curing agent such as crosslinking agent, polymerization initiator, polymerization accelerant, solvent, viscosity modifier, extender pigment etc.As curing agent, usually polyurethane series resin and polyurethane series resin are used isocyanates, organic sulfonic acid etc., epoxy resin is used amine, is that resin uses radical initiators such as peroxide, azo diisobutyl ester such as methyl-ethyl-ketone peroxide to unsaturated polyester (UP).
As above-mentioned ionization radial line cured resin, for example can enumerate resin that forms by the prepolymer, oligomer and/or the monomer that in molecule, have polymerism unsaturated bond, mercapto or epoxy radicals such as acryloyl group, methacryl etc.As above-mentioned ionization radial line cured resin, particularly, for example can enumerate (methyl) acrylate compounds, silicon based compound, unsaturated polyester compound, epoxide etc.
Wherein, preferably use silicon based compound or (methyl) acrylate based compound more than a kind.As the concrete example of silicon based compound, for example can enumerate two sense silicon based compounds, trifunctional silicon based compound, four sense silicon based compounds etc.As two sense silicon based compounds, for example can enumerate γ-glycidyl ether oxygen base propyl group methyldiethoxysilane, methacryloxyethyl methyl dimethoxysilane, phenyl methyl dimethoxy silane, vinyl methyl dimethoxysilane etc.As trifunctional silicon based compound, for example can enumerate γ-glycidyl ether oxygen base propyl trimethoxy silicane, β-(3, the 4-epoxycyclohexyl) ethyl trimethoxy silane, phenyltrimethoxysila,e, methacryloxyethyl trimethoxy silane, vinyltrimethoxy silane, MTMS etc.As four sense silicon based compounds, for example can enumerate tetramethoxy-silicane, tetraethoxysilane, tetrapropoxysilane, tetraisopropoxysilan, four butoxy silanes etc.
As the concrete example of aforesaid propylene acid esters based compound, for example can enumerate simple function (methyl) acrylate, two senses (methyl) acrylate, trifunctional (methyl) acrylate, four senses (methyl) acrylate, (methyl) acrylate more than the face energy etc.As simple function (methyl) acrylate, for example can enumerate (methyl) methyl acrylate, (methyl) ethyl acrylate, (methyl) butyl acrylate, (methyl) cyclohexyl acrylate, (methyl) phenyl acrylate, (methyl) benzyl acrylate, (methyl) 2-EHA, (methyl) acrylic acid 2-hydroxy methacrylate, cyclohexyl maleimide butoxyethyl group acrylate, methoxyl group ethylene glycol (methyl) acrylate, (methyl) glycidyl acrylate, (methyl) acrylic acid 2-hydroxy propyl ester, acrylic acid acrylamide, diacetone acrylamide, acrylonitrile etc.As two senses (methyl) acrylate, for example can enumerate many or monoethylene glycol two (methyl) acrylate, two (methyl) acrylic acid 1,6-hexylene glycol ester, two (methyl) acrylic acid DOPCP etc.As trifunctional (methyl) acrylate, for example can enumerate trimethylolpropane tris (methyl) acrylate, trimethylolethane trimethacrylate (methyl) acrylate, three (methyl) new penta triol of acrylic acid (pentaglycerol) ester, pentaerythrite three (methyl) acrylate, tetramethylol methane three (methyl) acrylate, three (methyl) acrylic acid glyceride, dipentaerythritol three (methyl) acrylate, three [(methyl) acryloxy ethyl] isocyanuric acid ester etc.As four senses (methyl) acrylate, for example can enumerate pentaerythrite four (methyl) acrylate, tetramethylol methane four (methyl) acrylate, tetramethylol methane tetraacrylate, dipentaerythritol four (methyl) acrylate etc.As above (methyl) acrylate of face energy, for example can enumerate dipentaerythritol five (methyl) acrylate, dipentaerythritol six (methyl) acrylate, tripentaerythritol eight (methyl) acrylate etc.
In addition, can also use phosphonitrile system (methyl) acrylate compounds that in the phosphonitrile ring of phosphazene compound, has imported (methyl) acryloxy; The compound that in molecule, has at least 2 isocyanate bases with the compound reaction that in molecule, has (methyl) acryloxy and hydroxyl carbamate (methyl) acrylate compounds; The compound that in molecule, has at least 2 acid halide group with the compound reaction that in molecule, has (methyl) acryloxy and hydroxyl polyester (methyl) acrylate compounds; Oligomers such as the dimer of above-mentioned each compound, trimer etc.
And then the cured film by these silicon based compounds or (methyl) acrylate based compound obtain in order to improve its hardness, preferably contains more than one inorganic particles.As above-mentioned inorganic particles, for example can enumerate the oxide, double oxide of inorganic compound, indefinite alloy than oxide, oxide etc., specifically can enumerate silica, aluminium oxide, titanium oxide, zirconia, cerium oxide, tin oxide, beryllium oxide, antimony oxide and Ce
2O
3TiO
2, TaO
xSiO
2, SiO
xSiO, MgOAl
2O
3, BaOTiO
2Deng.
The film that is formed by the ionization radial line cured resin can be by adding more than one Photoepolymerizationinitiater initiater and/or more than one photosensitizer in above-mentioned ionization radial line cured resin etc., and shine ionization radial line and obtain.
As Photoepolymerizationinitiater initiater, for example can use acetophenones, benzophenone, Michaelis benzoylbenzoic acid ester, α-pentoxime ester (α-amyloxime ester), tetramethylthiuram monosulfide, thioxanthene ketone.As photosensitizer, for example can use n-butylamine, triethylamine, tri-n-butyl phosphine etc.
In addition, so-called ionization radial line is meant to have in electromagnetic wave or the charged particle ray and the radiation of molecule aggregation, the crosslinked quanta of energy can be used ultraviolet ray, electron beam usually.As ultraviolet source, for example can enumerate light sources such as ultrahigh pressure mercury lamp, high-pressure sodium lamp, low pressure mercury lamp, carbon arc lamp, black light lamp, metal halide lamp.
The addition of Photoepolymerizationinitiater initiater is preferably about 0.1～10 mass parts with respect to resin 100 mass parts that constitute cured film.
Become in the hardening resin composition of cured film of the present invention, can be according to employed various additives since the purpose interpolation in the past.As above-mentioned additive, for example can enumerate surfactant, levelling agent, dyestuff, pigment, antioxidant, ultra-violet absorber, stabilizing agent, fire retardant, plasticizer etc.
As in the surface-coated method that becomes the hardening resin composition of cured film of stacked extruded resin sheet, for example can enumerate nick version (microgravure) rubbing method, rolling method, dip coating, spin-coating method, mould and be coated with method, curtain coating transfer printing, curtain coating, spraying process etc.
The thickness of the cured film of Xing Chenging is preferably 1～10 μ m like this, more preferably 2～6 μ m.When this thickness was too small, scratch resistance was insufficient sometimes, if excessive, then be exposed to the easy generation of hot and humid following time and broke.The concentration of contained solid constituent is regulated in the amount of the hardening resin composition of the unit are that the thickness of cured film can be coated with by the surface that is adjusted at stacked extruded resin sheet, the hardening resin composition.
In illustrated these cured film, especially preferably has the cured film of scratch resistance.
As cured film, can enumerate the epithelium that in multifunctional (methyl) acrylate based compound, adds inorganic particles and form, the epithelium that the interpolation inorganic particles forms in carbamate (methyl) acrylate based compound, the epithelium that tetraalkoxysilane curing is formed with scratch resistance.
The touch panel that of the present invention stacked extruded resin sheet that obtains like this and surperficial coated panel for example can be used as picture, portable game of guidance panel, the PC of auto-navigation system, portable information terminal, industrial machine etc. uses with parts.
In addition, when stacked extruded resin sheet of the present invention and surperficial coated panel are used as touch panel, carry out processing such as post forming, printing, perforate such as thermoforming, and cut off and handle established practice setting shape or size gets final product.In addition, when using the stacked extruded resin sheet of 2 layers of structure, the mode that becomes face side (that is, the people of operating touch panel touch a side) with acrylate resin layer is provided with touch panel usually.In addition, the thickness that uses the stacked extruded resin sheet of 3-tier architecture and two acrylate resin layers mutually not simultaneously, preferably the mode that becomes face side with the big acrylate resin layer of thickness is provided with touch panel.By the touch panel that stacked extruded resin sheet of the present invention and surperficial coated panel form, be difficult for scratching.
Below, embodiments of the invention are shown, but the present invention is not limited to this.It should be noted that among the following embodiment that part of expression content or use amount is weight basis unless otherwise specified.In addition, shown in being constructed as follows of the extrusion device that uses in following embodiment and the comparative example.
Extruder 1: screw diameter 65mm, single shaft, band air vent (Toshiba Machine Co. Ltd's system).
Extruder 2: screw diameter 45mm, single shaft, band air vent (Ship-building Company of Hitachi system).
Feed piece: two kinds three layers and two kinds of two-layer distribution (Ship-building Company of Hitachi system).
Mouth mould 3:T type mouth mould, the wide 1400mm of die lip, die lip is 1mm (Ship-building Company of Hitachi system) at interval.
Roller: horizontal, face length 1400mm, 2 of the chill rolls of diameter 300 φ.
＜roller constitutes 1 〉
Formation shown in Figure 2 is constituted 1 as roller.Specifically, make No. 1 roller and No. 2 following formations of roller.
(No. 1 roller)
To dispose metal made membrane 9 in the mode of outer peripheral face of lining beaming roller 8 and between beaming roller 8 and metal made membrane 9, enclose metallic elastic roller 7 that fluid 10 forms as No. 1 roller.Beaming roller 8, metal made membrane 9 and fluid 10 are as follows.
Beaming roller 8: stainless steel
Metal made membrane 9: the mirror metal sleeve of the stainless steel of thick 2mm
Fluid 10: be oil,, can carry out temperature control to metallic elastic roller 7 by controlling this oily temperature.More particularly, the ON-OFF by the adjustment machine controls and heats, cools off above-mentioned oil, thereby can carry out temperature control, and it is circulated between beaming roller 8 and metal made membrane 9.
(No. 2 rollers)
Adopt surface state be the propellers of stainless steel of minute surface as the metallic roll 6 of high rigidity, with it as No. 2 rollers.
In addition, metallic elastic roller 7 is 4mm with the contact length L that metallic roll 6 Jie are contacted by the stacked extruded resin sheet 4 of fusion.
＜roller constitutes 2 〉
No. 1 roller and No. 2 rollers all adopt the metallic roll (surface state is the propellers of the stainless steel of minute surface) of high rigidity.
The resin that uses in following embodiment and the comparative example is as follows.
Resin 1: the polymer of aromatic copolycarbonate (" the Calibre 301-10 " of SUMITOMO DOW corporate system) only.Heat distortion temperature (Th) is 140 ℃.
Resin 2: the copolymer of methyl methacrylate/methyl acrylate=98/2 (weight ratio).Heat distortion temperature (Th) is 100 ℃.
Resin 3: in the copolymer 91 weight % of methyl methacrylate/methyl acrylate=96/4 (weight ratio), contain the acrylic resin system: compositions that the acrylic acid series multilayer structure polymer 9 weight % that obtain in the following reference example form.Heat distortion temperature (Th) is 100 ℃.
Resin 4: in the copolymer 79 weight % of methyl methacrylate/methyl acrylate=96/4 (weight ratio), contain the acrylic resin system: compositions that the acrylic acid series multilayer structure polymer 21 weight % that obtain in the following reference example form.Heat distortion temperature (Th) is 100 ℃.
[reference example]
(manufacturing of rubber-like polymer)
According to the method for putting down in writing among the public clear 55-27576 of spy number the embodiment, make the acrylic acid series multilayer structure polymer that constitutes by three-decker.Specifically, at first, ion exchange water 1700g, sodium carbonate 0.7g, sodium peroxydisulfate 0.3g pack in the glass system reaction vessel of internal volume 5L, nitrogen flow down stir after, PELEX OT-P (KAO. Corp. SA's system) 4.46g, ion exchange water 150g, methyl methacrylate 150g, allyl methacrylate 0.3g pack into, be warming up to 75 ℃ then, continue to stir 150 minutes.
Then added butyl acrylate 689g, the mixture of styrene 162g, allyl methacrylate 17g and the mixture of sodium peroxydisulfate 0.85g, PELEX OT-P 7.4g and ion exchange water 50g with 90 minutes, and then continue polymerization 90 minutes from other inlet.
After polymerization finishes, and then added the mixture of methyl acrylate 326g, ethyl acrylate 14g in 30 minutes and be dissolved with the ion exchange water 30g of sodium peroxydisulfate 0.34g from each mouthful usefulness.
After adding end, and then kept 60 minutes, finish polymerization.The latex that obtains is dropped in 0.5% aluminum chloride aqueous solution, make the polymer cohesion.With its with warm water washing 5 times after, drying obtains the acrylic acid series multilayer structure polymer.
[embodiment 1～11]
The making of＜stacked extruded resin sheet 〉
As resin bed A, the resin of kind shown in the table 1 is carried out melting mixing with extruder 1, be supplied to the feed piece.On the other hand,, the resin of kind shown in the table 1 is carried out melting mixing with extruder 2, be supplied to the feed piece as resin bed B.With the resin bed A that is supplied to the feed piece from extruder 1 be main stor(e)y, the resin bed B that is supplied to the feed piece from extruder 2 is the mode of top layer (single face/upside), carries out co-extrusion modling.
Then, while No. 1 roller and No. 2 roller clamping system films that will use roller shown in the table 1 to constitute from the stacked extruded resin sheet 4 of the fusion that mouth mould 3 is extruded obtain the stacked extruded resin sheet that is made of 2 layers of structure of thickness shown in the table 1.In addition, the surface temperature of No. 1 roller is 120 ℃, and the surface temperature of No. 2 rollers is 130 ℃.These temperature are measured values of the surface temperature of each roller.In addition, " thickness " expression resin bed A in the extruder 1,2 in the table 1, each thickness of B, the gross thickness of the resulting stacked extruded resin sheet of " gross thickness " expression in the table 1.
The making of＜surperficial coated panel 〉
On the surface of the side that is touched of each the stacked extruded resin sheet that obtains, be the surface-coated cured film of resin bed B, obtain surperficial coated panel.Specifically, at first, respectively in the solvent of 125 parts of 125 parts of isobutanols and 1-methoxyl groups-2-propyl alcohol with following ratio mix 50 parts of 50 parts of dipentaerythritol acrylates, tetramethylol methane tetraacrylates as monomer, as 1.5 parts of 4.5 parts of IRGACURE184, the IRGACURE907 of the Ciba corporate system of initator, as 0.1 part of the BYK-307 of the BYK-CHEMIE JAPAN corporate system of levelling agent, obtain mixing material.
Then, this mixing material is coated on the surface of resin bed B with No. 16 metering bar coaters, uses the high voltage mercury lamp radiation 0.5J/cm of 120W
2Ultraviolet ray make it to solidify, on the surface of resin bed B, form the cured film of thick about 3.5 μ m, obtain surperficial coated panel.
[embodiment 12～22 and comparative example 1]
As resin bed A, the resin of kind shown in the table 1 is carried out melting mixing with extruder 1, be supplied to the feed piece.On the other hand,, the resin of kind shown in the table 1 is carried out melting mixing with extruder 2, be supplied to the feed piece as resin bed B.With the resin bed A that is supplied to the feed piece from extruder 1 be the intermediate layer, the resin bed B that is supplied to the feed piece from extruder 2 is the mode on two top layers, carries out co-extrusion modling.
Then, while No. 1 roller and No. 2 roller clamping system films that will use roller shown in the table 1 to constitute from the stacked extruded resin sheet 4 of the fusion that mouth mould 3 is extruded obtain the stacked extruded resin sheet that is made of 3-tier architecture of thickness shown in the table 1.In addition, the surface temperature of No. 1 roller is 110 ℃, and the surface temperature of No. 2 rollers is 125 ℃.
In resin bed B, the B of each the stacked extruded resin sheet that obtains, on the surface of an arbitrarily selected resin bed B, similarly form the cured film of thick about 3.5 μ m with the foregoing description 1～11, obtain surperficial coated panel.
[comparative example 2～4]
The resin of kind shown in the table 1 is carried out melting mixing with extruder 1, supply with by the order of feed piece and mouthful mould 3.Then, while will melt extrude No. 1 roller and No. 2 roller clamping system films that resin plate uses roller shown in the table 1 to constitute, obtain the extruded resin sheet that constitutes by single layer structure of thickness shown in the table 1 from what mouth mould 3 was extruded.
At any single face of each extruded resin sheet that obtains, similarly form the cured film of thick about 3.5 μ m with the foregoing description 1～11, obtain surperficial coated panel.
＜estimate
For each extruded resin sheet that obtains (embodiment 1～22 and comparative example 1～4), carry out the evaluation of shrinkage factor and delay.In addition, for each extruded resin sheet and each surperficial coated panel, carry out pencil hardness and felt pen evaluation.Each evaluation method is as follows, and its result is shown in table 1 in the lump.
(shrinkage factor)
At first, the size square with about 10cm cuts out test film by the extruded resin sheet that obtains, and measures this test film respectively and extruding the size of direction (MD0) and in the size (TD0) of width.Then, spreading baby talcum powder in metal tubbing (with " the Siccarol Hi " of light hall corporate system) is placed above-mentioned test film thereon, drops in 160 ℃ the baking oven 30 minutes.
Then, measure the cooled test film of nature respectively and extruding the size of direction (MD) and in the size (TD) of width, with each size substitution formula: the shrinkage factor S1={1-(MD/MD0) that obtains } * 100, formula: shrinkage factor S2={1-(TD/TD0) * 100 in, calculate shrinkage factor S1, S2.In addition, calculate than (S1/S2) by the shrinkage factor S1 that calculates, S2.Among shrinkage factor S1 in the table 1, the S2 ,+the result represent to shrink ,-the result represent to expand.
(delay)
The size square with 50cm cuts out test film by the extruded resin sheet that obtains, and uses small area birefringence meter (" KOBRA-CCO/X " of prince's tester corporate system) to measure the delay of this test film.
(pencil hardness)
Measure according to JIS K5600.In addition, the mensuration face of the extruded resin sheet of embodiment 1～11 is resin bed B.In addition, in the pencil hardness of table 1, " resin plate " expression extruded resin sheet, " coated panel " presentation surface coated panel.
(felt pen evaluation)
On the surface of extruded resin sheet and surperficial coated panel, use " the DS felt pen " of Nintendo Co.'s system, write common language, the scuffing situation of Visual Confirmation friction portion with personal letter.In addition, the surface of the extruded resin sheet of embodiment 1～11 is resin bed B.In addition, judgment standard uses following benchmark.
Zero: do not scratch
△: be with shallow scuffing
*: band scratches deeply
Table 1
As shown in Table 1, the extruded resin sheet of embodiment 1～22 extruded resin sheet than comparative example 1～4 in pencil hardness and felt pen evaluation demonstrates good result, and the surface is difficult for scratching.In addition, if also be covered cured film as can be known on extruded resin sheet, then the surface tear difficulty improves.Especially adopted the extruded resin sheet of the embodiment 1～4,6～8,12～21 of roller formation 1, shrinkage factor and length of delay are little.
On the other hand, for the extruded resin sheet that constitutes by 2 layers of structure of embodiment 1～11, estimated this extruded resin sheet whether break after curved with record book in accordion form (bending).Consequently, even demonstrating bending, this extruded resin sheet also is difficult for the result of breaking.In addition, in the extruded resin sheet of the embodiment 12～22 that constitutes by 3-tier architecture, for acrylate resin layer the extruded resin sheet of the embodiment 16～22 of the layer that forms by methacrylic resin and rubber-like polymer, similarly estimated bending with above-mentioned.Consequently, even demonstrating bending, this extruded resin sheet also is difficult for the result of breaking.
Claims (6)
1. the stacked extruded resin sheet of touch panel is characterized in that, forms by the surperficial stacked acrylate resin layer of co-extrusion modling in the side that is touched of polycarbonate resin.
2. the stacked extruded resin sheet of touch panel according to claim 1 is characterized in that the thickness of described polycarbonate resin is more than 50% of integral thickness.
3. the stacked extruded resin sheet of touch panel according to claim 1 is characterized in that stacked acrylate resin layer forms on the two sides of described polycarbonate resin.
4. the stacked extruded resin sheet of touch panel according to claim 1 is characterized in that described acrylate resin layer is formed by methacrylic resin and rubber-like polymer.
5. the surperficial coated panel of touch panel is characterized in that, the surface-coated cured film of the side that is touched of each described stacked extruded resin sheet forms in claim 1～4.
6. the surperficial coated panel of touch panel according to claim 5 is characterized in that described cured film is the cured film with marresistance.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009-027721 | 2009-02-09 | ||
| JP2009027721A JP5620644B2 (en) | 2009-02-09 | 2009-02-09 | Multi-layer extrusion resin plate for touch panel and surface coating plate for touch panel |
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| Publication Number | Publication Date |
|---|---|
| CN101941316A true CN101941316A (en) | 2011-01-12 |
| CN101941316B CN101941316B (en) | 2015-11-25 |
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| CN201010112224.3A Active CN101941316B (en) | 2009-02-09 | 2010-02-08 | The touch panel surperficial coated panel of stacked extruded resin sheet and touch panel |
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| Country | Link |
|---|---|
| JP (1) | JP5620644B2 (en) |
| KR (1) | KR101646786B1 (en) |
| CN (1) | CN101941316B (en) |
| TW (1) | TWI486257B (en) |
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| US9308616B2 (en) | 2013-01-21 | 2016-04-12 | Innovative Finishes LLC | Refurbished component, electronic device including the same, and method of refurbishing a component of an electronic device |
| CN107390911A (en) * | 2016-05-06 | 2017-11-24 | 星电株式会社 | Plastic lamination structure and the touch-sensing device with the plastic lamination structure |
| CN109558028A (en) * | 2017-09-27 | 2019-04-02 | 东友精细化工有限公司 | Touch sensor and its manufacturing method |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2010182263A (en) | 2010-08-19 |
| CN101941316B (en) | 2015-11-25 |
| TW201041737A (en) | 2010-12-01 |
| JP5620644B2 (en) | 2014-11-05 |
| KR101646786B1 (en) | 2016-08-08 |
| KR20100091118A (en) | 2010-08-18 |
| TWI486257B (en) | 2015-06-01 |
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