KR20170064577A - Adhesive composition, optically clear adhesive film and touch screen panel - Google Patents
Adhesive composition, optically clear adhesive film and touch screen panel Download PDFInfo
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- KR20170064577A KR20170064577A KR1020150169663A KR20150169663A KR20170064577A KR 20170064577 A KR20170064577 A KR 20170064577A KR 1020150169663 A KR1020150169663 A KR 1020150169663A KR 20150169663 A KR20150169663 A KR 20150169663A KR 20170064577 A KR20170064577 A KR 20170064577A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J4/00—Adhesives based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; adhesives, based on monomers of macromolecular compounds of groups C09J183/00 - C09J183/16
- C09J4/06—Organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond in combination with a macromolecular compound other than an unsaturated polymer of groups C09J159/00 - C09J187/00
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- C09J7/0217—
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2203/00—Applications of adhesives in processes or use of adhesives in the form of films or foils
- C09J2203/318—Applications of adhesives in processes or use of adhesives in the form of films or foils for the production of liquid crystal displays
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Abstract
Sensitive adhesive composition for optical use, an optical adhesive film, and a touch screen panel which are excellent in level difference absorbency and high temperature and high humidity reliability.
The optical pressure-sensitive adhesive composition for an optical device according to the present invention comprises 30 to 60% by weight of a C1-C10 alkyl acrylate; C12-C20 alkyl acrylate: 5 to 30% by weight; 5 to 25% by weight of an acrylate containing a C6-C20 alicyclic condensed ring or a fused ring; 10 to 30% by weight of a C1-C10 hydroxyalkyl acrylate.
Description
The present invention relates to an optical pressure-sensitive adhesive composition, an optical pressure-sensitive adhesive film, and a touch screen panel, and more particularly, to a pressure-sensitive adhesive composition for optical use, a pressure-sensitive adhesive film for optical use, and a touch screen panel having excellent level difference absorbability and high temperature and high humidity reliability.
2. Description of the Related Art In recent years, electronic devices such as a PDA, a mobile communication terminal, or a navigation system for a vehicle have formed a large market. In recent years, such an electronic device is intended to secure thin and light characteristics and long-term durability. An electronic apparatus including a touch screen or a touch panel switch on an input operation section includes a transparent conductive film having a conductive metal oxide layer on one side of a transparent film such as a polyethylene terephthalate film, A glass, a reinforcing material or a deco film. Since the pressure-sensitive adhesive or the like used in such electronic devices functions as a medium of each layer, it is important to ensure reliability that does not cause bubbles and whitish phenomenon, have excellent optical characteristics, and ensure long-term durability.
A related prior art is Korean Patent Laid-Open Publication No. 10-2013-0070571 (published on June 27, 2013), which discloses an acrylic pressure sensitive adhesive composition for optical use and an acrylic pressure sensitive adhesive tape for optical use.
An object of the present invention is to provide an optical pressure-sensitive adhesive composition for optical use, a pressure-sensitive adhesive film for optical use, and a touch screen panel which are excellent in level difference absorbency and high temperature and high humidity reliability.
In order to accomplish the above object, the present invention provides a pressure-sensitive adhesive composition for optical use comprising 30 to 60% by weight of a C1-C10 alkyl acrylate; C12-C20 alkyl acrylate: 5 to 30% by weight; 5 to 25% by weight of an acrylate containing a C6-C20 alicyclic condensed ring or a fused ring; And 10 to 30% by weight of a C1-C10 hydroxyalkyl acrylate.
In order to achieve the above object, an optical adhesive film according to an embodiment of the present invention includes a pressure sensitive adhesive layer formed using an optical adhesive composition.
According to an aspect of the present invention, there is provided a touch screen panel comprising: a conductive plastic film layer having a conductive layer formed on one surface thereof; A transparent adhesive layer formed by laminating an optical adhesive film on the conductive layer; And a cover window layer laminated on the optical adhesive film.
The optical pressure-sensitive adhesive composition for optical, optical adhesive film and touch screen panel according to the present invention is composed of a 4- to 5-membered copolymer containing at least two or more alkyl acrylates having different carbon numbers, By maintaining a storage modulus of 0.1 MPa, it is possible to ensure excellent step difference absorbency while minimizing deformation due to external stimuli.
Therefore, the optical pressure-sensitive adhesive composition for optical use, optical pressure-sensitive adhesive film, and touch screen panel have excellent step-absorptivity and have a storage elastic modulus of less than a certain value, so that there is no change in optical characteristics in a high temperature and high humidity atmosphere, And has excellent reliability without clouding or the like.
1 is a cross-sectional view schematically illustrating a touch screen panel according to an embodiment of the present invention.
Advantages and features of the present invention and methods of achieving them will become apparent with reference to the embodiments described hereinafter. It should be understood, however, that the invention is not limited to the disclosed embodiments, but is capable of many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, To fully disclose the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the optical adhesive composition for optical, optical adhesive film, and touch screen panel according to preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
The pressure-sensitive adhesive composition for optical use according to an embodiment of the present invention may contain 30 to 60 wt% of a C1-C10 alkyl acrylate, 5 to 30 wt% of a C12-C20 alkyl acrylate, a C6-C20 alicyclic condensed ring, Rate: 5 to 25 wt% and C1 to C10 hydroxyalkyl acrylate: 10 to 30 wt%.
At this time, the optical pressure-sensitive adhesive composition for optical use according to the embodiment of the present invention is used as a bonding medium for bonding a conductive window film layer and a conductive plastic film layer having a conductive layer formed on one side thereof in manufacturing a touch screen panel of a display device such as a mobile, tablet PC, do.
In particular, the pressure-sensitive adhesive composition for optical use according to an embodiment of the present invention is composed of a 4 to 5-membered copolymer containing at least two or more alkyl acrylates having different carbon numbers.
One or two C1-C10 alkyl acrylates are added. The kind and content of the C1-C10 alkyl acrylate can be adjusted to have appropriate cohesion, glass transition temperature, and adhesion properties of the copolymer. For this purpose, the C1-C10 alkyl acrylate is preferably added at a content ratio of 30 to 60% by weight based on the total weight of the adhesive composition for optical use.
Examples of the C1-C10 alkyl acrylate include methyl (meth) acrylate, ethyl (meth) acrylate, n-propyl (meth) acrylate, isopropyl (meth) acrylate, (meth) acrylate, 2-ethylbutyl (meth) acrylate, sec-butyl (meth) acrylate, pentyl (Meth) acrylate, isooctyl (meth) acrylate, isononyl (meth) acrylate and decyl (meth) acrylate.
C12-C20 alkyl acrylate has a higher molecular weight than that of C1-C10 alkyl acrylate, thereby lowering the storage modulus of the copolymer and improving the step absorbability.
The C12-C20 alkyl acrylate may include at least one selected from lauryl (meth) acrylate, cetyl (meth) acrylate, stearyl (meth) acrylate and eicosyl .
The C12-C20 alkyl acrylate is preferably added at a content ratio of 5 to 30% by weight based on the total weight of the pressure sensitive adhesive composition for optical use. When the addition amount of the C12-C20 alkyl acrylate is less than 5% by weight, it may be difficult to exhibit the above effect properly. On the other hand, when the amount of the C12-C20 alkyl acrylate is more than 30% by weight, the cohesive strength is excessively high and the adhesive strength is lowered.
The C6-C20 alicyclic condensed ring or the acrylate containing the fused ring may have a C6-C20 alicyclic condensed ring or a structure including a fused ring to form entanglement of the copolymer physically to form bubbles .
As the C6-C20 alicyclic condensed ring or the fused ring-containing acrylate, at least one selected from isobonyl (meth) acrylate and cyclohexyl (meth) acrylate may be used.
The C6-C20 alicyclic condensed ring or the fused ring-containing acrylate is preferably added at a content ratio of 5 to 25% by weight based on the total weight of the pressure sensitive adhesive composition for optical use. When the addition amount of the C6-C20 alicyclic condensed ring or the acrylate containing a fused ring is less than 5% by weight, the addition amount thereof is insignificant, so that it may be difficult to exhibit the above effect properly. Conversely, when the addition amount of the C6-C20 alicyclic condensed ring or the fused ring-containing acrylate is more than 25% by weight, the optical properties such as transmittance are deteriorated.
The C1-C10 hydroxyalkyl acrylate is added for the purpose of suppressing the occurrence of the whitening phenomenon while lowering the dielectric constant.
Examples of such C1-C10 hydroxyalkyl acrylates include 2-hydroxyethyl (meth) acrylate, 2-hydroxypropyl (meth) acrylate, 4-hydroxybutyl (meth) acrylate, 6-hydroxyhexyl (Meth) acrylate, 8-hydroxyoctyl (meth) acrylate, 2-hydroxyethyleneglycol (meth) acrylate and 2-hydroxypropyleneglycol (meth) acrylate.
The C1-C10 hydroxyalkalic acrylate is preferably added at a content ratio of 10 to 30% by weight based on the total weight of the pressure-sensitive adhesive composition for optical use. If the amount of the C1-C10 hydroxyalkalate added is less than 10% by weight, it may be difficult to exhibit the above-mentioned effects properly. On the contrary, when the amount of the C1-C4 hydroxyalkalylate added is more than 30% by weight, the cohesive force is increased and the stepwise absorbability is lowered, and the adhesive strength is lowered.
In addition, the optical adhesive composition for an optical device according to an embodiment of the present invention may further include at least one or more of a crosslinking agent and a photoinitiator.
At this time, the crosslinking agent is added for the purpose of crosslinking the acrylic copolymer. For example, at least one selected from an isocyanate compound, an aziridine compound, an epoxy compound, a metal chelate compound and a polyfunctional acrylate may be used. For the purpose of inhibiting corrosion, it is also possible to employ an isocyanate compound as a crosslinking agent and use an ethylenically unsaturated monomer having a hydroxyl group as a polar monomer.
Such a crosslinking agent may be used in an amount of 0.01 to 10 parts by weight based on 100 parts by weight of the acrylic copolymer.
The type of the photoinitiator is not particularly limited as long as it can generate a radical by light irradiation to initiate a polymerization reaction. Specifically, the photoinitiator may use a photoinitiator that initiates a photo-curing reaction with light having an absorption wavelength of about 295 nm to about 420 nm. It is also preferred to exhibit a high water uptake at about 360 to about 380 nm, depending on the amount used.
Such photoinitiator may be used in an amount of 0.01 to 10 parts by weight based on 100 parts by weight of the copolymer. At this time, as the photoinitiator, any one selected from a benzoin-based initiator, a hydroxyketone-based initiator, an amino ketone-based initiator and caprolactam may be used.
Also, the pressure-sensitive adhesive composition for optical use according to an embodiment of the present invention may contain additives such as ultraviolet stabilizer, antioxidant, colorant, reinforcing agent, filler, defoamer, surfactant, plasticizer and combinations thereof Based on the total weight of the composition.
On the other hand, the optical pressure-sensitive adhesive film according to the embodiment of the present invention can be produced by applying the optical pressure-sensitive adhesive composition described above onto a base layer and then photo-curing the layer by light irradiation. Here, light irradiation means irradiation of electromagnetic wave that can cause polymerization reaction by affecting a photoinitiator or a polymerizable compound. In the above, electromagnetic waves include microwave, infrared ray, ultraviolet ray, X-ray and? A particle beam such as a proton beam, a neutron beam, and an electron beam is generally used.
At this time, there is no particular limitation on the method for producing an optical adhesive film by photocuring the optical pressure-sensitive adhesive composition. For example, an optical pressure-sensitive adhesive film can be produced by applying the above-described pressure-sensitive adhesive composition for optical or coating solution prepared by adding a solvent thereto to a suitable process substrate by a known means such as a bar coater and curing .
In the curing process, the crosslinking density, the molecular weight, the modulus of elasticity, etc. of the cured product are appropriately given after sufficiently removing the air bubble-inducing component such as volatile components or reaction residues contained in the optical pressure-sensitive adhesive composition or coating solution, It is possible to prevent the problem that the bubbles existing in the inner space become large and the scattering body is formed inside.
The method for curing the pressure-sensitive adhesive composition for optical use or the coating solution thereof is not particularly limited. For example, a process for irradiating ultraviolet rays or aging the coating layer formed by the pressure-sensitive adhesive composition for optical or its coating solution under predetermined conditions The curing process can be performed.
At this time, the photo-curing can be performed, for example, by UV irradiation. The UV irradiation carried out for photocuring can be carried out for about 10 seconds to about 15 seconds with a commonly used metal halide lamp.
In this case, UV irradiation is the amount of light, and preferably at 0.1J / cm 2 ~ 5.0J / cm 2 are preferred, and more preferably it is possible to present a 1.0 J / cm 2 ~ 3.0 J / cm 2.
The aforementioned optical adhesive film may have a thickness of approximately 5 to 300 탆, specifically 100 to 200 탆. An optical adhesive film having a thickness within the above range can be applied to a thin touch panel or a touch screen, and an adhesive film having excellent durability can be realized.
In particular, in the case of the optical adhesive film according to the embodiment of the present invention, the storage modulus of the pressure-sensitive adhesive layer was measured by applying a constant force to the pressure-sensitive adhesive layer while changing the temperature by an ARES instrument (Theometric Scientific). The larger the storage elastic modulus means the greater the elasticity of the pressure-sensitive adhesive layer, and it is preferable that the storage elastic modulus of the pressure-sensitive adhesive layer is lower than a certain value in order to have an excellent level difference absorbency.
Specifically, the pressure-sensitive adhesive layer maintains a storage modulus of 0.01 to 0.1 MPa at 25 to 80 ° C, thereby securing excellent step difference absorbability while minimizing deformation due to external stimuli. At this time, the storage elastic modulus tends to decrease as the temperature increases, and thus the peel strength tends to decrease. When the storage elastic modulus is less than 0.01 MPa, pressing phenomenon and photographing phenomenon can easily occur. On the other hand, when the storage elastic modulus exceeds 0.1 MPa, the flexibility of the pressure-sensitive adhesive layer is very low, so that it is not attached to the substrate as a whole in the process of sticking, and lifting phenomenon occurs and the step difference absorbability may be lowered.
1 is a schematic cross-sectional view of a touch screen panel according to an embodiment of the present invention.
Referring to FIG. 1, a
The transparent pressure-sensitive adhesive layer (110) is a layer formed by photo-curing the pressure-sensitive adhesive composition, and the optical pressure-sensitive adhesive film has been described in detail above.
The specific kind of the conductive plastic film layer 130 is not particularly limited and a known conductive film in this field can be used. For example, the conductive film 130 may be a transparent plastic film having an ITO electrode layer as a conductive layer 132 on one side. Specifically, as the transparent plastic film forming the
Example
Hereinafter, the configuration and operation of the present invention will be described in more detail with reference to preferred embodiments of the present invention. It is to be understood, however, that the same is by way of illustration and example only and is not to be construed in a limiting sense.
The contents not described here are sufficiently technically inferior to those skilled in the art, and a description thereof will be omitted.
1. Adhesive film production
Example 1
45% by weight of 2-ethylhexyl acrylate (2-EHA), 14% by weight of lauryl acrylate, 20% by weight of isobornyl acrylate and 21% by weight of 4-hydroxybutyl acrylate were thermally polymerized to obtain an acrylic copolymer . Subsequently, 0.3 part by weight of Irgacure 651 as a photoinitiator and 0.1 part by weight of 1,6-hexanediol diacrylate (HDDA) as a crosslinking agent were mixed with 100 parts by weight of the acrylic copolymer to obtain a pressure-sensitive adhesive composition. Next, the pressure-sensitive adhesive composition was coated on PET by bar coating to a thickness of 150 탆 and cured by UV irradiation for 5 minutes to produce an adhesive film.
Example 2
40 parts by weight of 2-ethylhexyl acrylate (2-EHA), 20 parts by weight of lauryl acrylate, 15 parts by weight of isobornyl acrylate and 25 parts by weight of 6-hydroxyhexyl acrylate were thermally polymerized to obtain an acrylic copolymer The pressure-sensitive adhesive film was produced in the same manner as in Example 1. The results are shown in Table 1.
Example 3
25 parts by weight of 2-ethylhexyl acrylate (2-EHA), 25 parts by weight of ethyl acrylate, 10 parts by weight of cetyl acrylate, 15 parts by weight of isobornyl acrylate and 25 parts by weight of 4-hydroxybutyl acrylate To obtain an acrylic copolymer, an adhesive film was produced in the same manner as in Example 1.
Example 4
Example 1 was repeated except that 40% by weight of 2-ethylhexyl acrylate (2-EHA), 30% by weight of isobornyl acrylate and 30% by weight of 4-hydroxybutyl acrylate were thermally polymerized to obtain an acrylic copolymer. An adhesive film was produced in the same manner.
Comparative Example 1
15 parts by weight of isopropyl acrylate, 20 parts by weight of methyl acrylate, 20 parts by weight of lauryl acrylate, 15 parts by weight of cyclohexyl acrylate and 40 parts by weight of 2-hydroxypropyl acrylate were thermally polymerized to obtain an acrylic copolymer The pressure-sensitive adhesive film was produced in the same manner as in Example 1. The results are shown in Table 1.
Comparative Example 2
30 parts by weight of 2-ethylhexyl acrylate (2-EHA), 20 parts by weight of lauryl acrylate, 25 parts by weight of isobornyl acrylate and 25 parts by weight of 4-hydroxybutyl acrylate were thermally polymerized to obtain an acrylic copolymer The pressure-sensitive adhesive film was produced in the same manner as in Example 1. The results are shown in Table 1.
2. Property evaluation
Table 1 shows the print step absorption capacity and the evaluation results of high temperature and high humidity reliability for the adhesive films prepared according to Examples 1 to 4 and Comparative Examples 1 and 2.
1) Evaluation of absorbency of printing steps
A plurality of print layers were formed in a cross shape on a glass of 10 cm x 10 cm x 1 mm. At this time, the print layer was formed so as to have an interval of 5 占 퐉 from 10 占 퐉 to 100 占 퐉, so that the printed steps were printed on the glass by the height. Next, an adhesive film was laminated on the upper surface of the printing layer of the glass on which the printing layer was formed.
At this time, in order to evaluate the step absorption ability, it was visually observed whether bubbles were generated on the adhesive surface around the printed step after stacking the adhesive film, and the printed steps as the print layer having the maximum thickness at which no bubbles were generated are shown in Table 1 .
2) Measurement of cloudiness and bubble generation phenomenon
The adhesive film adhered to the glass at 85 ° C and 85% RH was stored for 200 hours to visually observe whether white spots or bubbles were generated.
[Table 1]
Referring to Table 1, it can be seen that the adhesive films prepared according to Examples 1 to 4 exhibit excellent characteristics of absorbing printed steps in comparison with the adhesive films prepared according to Comparative Examples 1 and 2.
In the case of the pressure-sensitive adhesive films prepared according to Comparative Examples 1 and 2, as a result of the evaluation of high-temperature and high-humidity reliability, no whitish phenomenon occurred but visually observed that the adhesion surface was lifted due to the formation of bubbles.
In contrast, in the case of the pressure-sensitive adhesive films prepared according to Examples 1 to 4, it was confirmed that no clouding phenomenon occurred and bubbles were not generated as a result of the reliability test of high temperature and high humidity.
Table 2 shows the evaluation results of physical properties of the pressure-sensitive adhesive films according to Examples 1 to 4 and Comparative Examples 1 and 2.
3) Storage elasticity
A storage elastic modulus was measured by applying a force with a jig to the pressure-sensitive adhesive layer of the pressure-sensitive adhesive film with an ARES instrument (TA Instrument) at 25 ° C.
4) Transmittance
After the adhesive film was cut into a size of 3 x 3 cm, the transmittance was measured using a haze meter.
[Table 2]
Referring to Table 2, it can be seen that the pressure-sensitive adhesive films according to Examples 1 to 4 all satisfy the storage modulus at 25 to 80 ° C: 0.01 to 0.1 MPa, and the transmittance is 90.5% or more.
On the other hand, the storage modulus of the pressure-sensitive adhesive films according to Comparative Examples 1 and 2 was more than 0.1 MPa at 25 to 80 ° C, and the transmittance was measured to be 89.6% and 90.4%, respectively.
Although the preferred embodiments of the present invention have been disclosed for illustrative purposes, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims. These changes and modifications may be made without departing from the scope of the present invention. Accordingly, the scope of the present invention should be determined by the following claims.
100: Touch screen panel
110: Adhesive film
130: Conductive plastic film
131: plastic substrate layer
132: conductive layer
150: Cover window layer
160: transparent substrate
170: Liquid crystal display (LCD)
Claims (11)
C12-C20 alkyl acrylate: 5 to 30% by weight;
5 to 25% by weight of an acrylate containing a C6-C20 alicyclic condensed ring or a fused ring; And
10 to 30% by weight of C1-C4 hydroxyalkyl acrylate;
Sensitive adhesive composition for optical use.
The C1-C10 alkyl acrylate
N-butyl (meth) acrylate, t-butyl (meth) acrylate, sec (meth) acrylate, Acrylates such as butyl (meth) acrylate, pentyl (meth) acrylate, 2-ethylhexyl (meth) acrylate, 2-ethylbutyl (Meth) acrylate, decyl (meth) acrylate and decyl (meth) acrylate.
The C12-C20 alkyl acrylate
(Meth) acrylate, cetyl (meth) acrylate, stearyl (meth) acrylate and eicosyl (meth) acrylate.
The C6-C20 alicyclic condensed ring or fused ring containing acrylate
(Meth) acrylate, cyclohexyl (meth) acrylate, and cyclohexyl (meth) acrylate.
The C1-C10 hydroxyalkyl acrylate
Acrylate, 2-hydroxyethyl (meth) acrylate, 2-hydroxypropyl (meth) acrylate, 4-hydroxybutyl (meth) acrylate, 6-hydroxyhexyl (Meth) acrylate, 2-hydroxyethylene glycol (meth) acrylate and 2-hydroxypropylene glycol (meth) acrylate.
The pressure-
A crosslinking agent, and a photoinitiator. ≪ RTI ID = 0.0 > 11. < / RTI >
The photoinitiator
A benzoin-based initiator, a hydroxyketone-based initiator, an amino ketone-based initiator, and an initiator caprolactam.
The pressure-
Wherein the storage modulus at 25 to 80 占 폚 is 0.01 to 0.1 MPa.
A transparent adhesive layer formed by laminating the optical adhesive film of claim 8 on the conductive layer; And
A cover window layer laminated on the optical adhesive film;
The touch screen panel comprising:
The cover window layer
A touch screen panel characterized by being a transparent glass replacement plastic film or tempered glass.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020229948A1 (en) * | 2019-05-10 | 2020-11-19 | 3M Innovative Properties Company | Oil-resistant optically clear adhesives |
| KR20210052993A (en) * | 2019-11-01 | 2021-05-11 | 주식회사 엘지화학 | Pressure-sensitive adhesive film |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20130131795A (en) * | 2012-05-24 | 2013-12-04 | (주)엘지하우시스 | Adhesive composition having enhanced flexibility |
| KR20140085259A (en) * | 2012-12-27 | 2014-07-07 | 제일모직주식회사 | Adhesive film, adhesive composition for the same and display member comprising the same |
| JP2014231556A (en) * | 2013-05-29 | 2014-12-11 | ニッタ株式会社 | Optical acrylic adhesive |
-
2015
- 2015-12-01 KR KR1020150169663A patent/KR102038123B1/en active IP Right Grant
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20130131795A (en) * | 2012-05-24 | 2013-12-04 | (주)엘지하우시스 | Adhesive composition having enhanced flexibility |
| KR20140085259A (en) * | 2012-12-27 | 2014-07-07 | 제일모직주식회사 | Adhesive film, adhesive composition for the same and display member comprising the same |
| JP2014231556A (en) * | 2013-05-29 | 2014-12-11 | ニッタ株式会社 | Optical acrylic adhesive |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020229948A1 (en) * | 2019-05-10 | 2020-11-19 | 3M Innovative Properties Company | Oil-resistant optically clear adhesives |
| CN114026130A (en) * | 2019-05-10 | 2022-02-08 | 3M创新有限公司 | Oil resistant optically clear adhesive |
| US11920063B2 (en) * | 2019-05-10 | 2024-03-05 | 3M Innovative Properties Company | Oil-resistant optically clear adhesives |
| CN114026130B (en) * | 2019-05-10 | 2024-04-02 | 3M创新有限公司 | Oil resistant optically clear adhesives |
| KR20210052993A (en) * | 2019-11-01 | 2021-05-11 | 주식회사 엘지화학 | Pressure-sensitive adhesive film |
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| KR102038123B1 (en) | 2019-10-30 |
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