TW201239418A - Optical antistatic adhesion coating layer, method of preparing an optical antistatic adhesion coating material, and method of fabricating an optical antistatic adhesion coating layer - Google Patents

Abstract

An optical antistatic adhesion coating layer, a method of preparing an optical antistatic adhesion coating material, and a method of fabricating an optical antistatic adhesion coating layer are provided. The optical antistatic adhesion coating layer coated on a substrate includes a matrix material and an antistatic material, The matrix material includes a polyacrylic acid polymer solidified by a hardener reagent. The antistatic material is scattered inside the matrix material consisted of the polyacrylic acid polymer, wherein the antistatic material is combined-able with the hardener.

Description

201239418 37729twf.docA VI. Description of the Invention: [Technical Field] The present invention relates to an optical grade coating, and in particular to an optical grade antistatic adhesive coating, an optical grade antistatic adhesive coating preparation method and an optical A method of making an antistatic adhesive coating. [Prior Art] FIG. 1 is a schematic view showing a known polarizing plate. Referring to FIG. 1, the polarizing plate 100 is used for manufacturing a liquid crystal display (LCD), which is mainly composed of a protective film (11), a triacetate cellulose film (TAC Film). 120, polyvinyl alcohol film (p〇iy Vinyl Alc〇h〇l, pVA) i3 〇, another three cellulose acetate film 140, adhesive (pressure Sensitive Adhesives ' PSA) 150, and release film 16 〇 and many more A film layer consists of. In the polarizing plate 100, the polyvinyl alcohol film 130 is a transparent high molecular weight film material in which molecules are aligned in one direction after being subjected to stress extension. At this time, the polyvinyl alcohol film 130 is adsorbed to the alizarin complex or the dye, and the light having a specific polarization characteristic can be absorbed by the iodine complex or the dye to achieve the effect of polarizing. Since the polyethylene slag 13G has poor durability and heat resistance, it is necessary to laminate the cellulose triacetate 12 〇 and 14 在 in the upper and lower sides after the extension of the polyethylene film 13 〇. In this way, the Sansa Cellulose Lai 120 α and 140 not only provide proper protection, but also prevent the shrinkage of the polyethylene film 13G. In addition, the outer surfaces of the cellulose triacetate film and the cellulose triacetate film 14G can be respectively laminated to one layer 201239418

37729twf.doc/I Protective film 110 and release film 160. In detail, during the production of the liquid crystal display, the protective film of the cellulose diacetate film 120 is peeled off. A plurality of the polarizing plates 1 are all made of a plastic material, and both have high electrical insulation, so that the second film may generate static electricity or electrostatic discharge during rubbing or stripping. When the bismuth film 110 is peeled off from the cellulose triacetate film 12, the electrical phenomenon causes the liquid crystal molecules in the liquid crystal display to lose the alignment property. Therefore, the antistatic effect is added to the protective film 11 or the surfactant is transferred to the adherend. However, in this case, the surfactant of the scorpion oozes to the adhesive surface, which leads to the second post. (The related art can refer to the Japanese patent. Contents] Resistance (4) Continued to turn (4), 纟 问题 具 具 具 具 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 2012 2012 2012 2012 2012 2012

37729twf.doc/I The present invention provides an optical grade antistatic adhesive coating applied to a substrate. The optical grade antistatic adhesive coating comprises a substrate and an antistatic material. The substrate comprises a polyacrylic polymer material which is cured by a hardener. The antistatic material is distributed inside the matrix composed of the polyacrylic polymer material, wherein the antistatic material and the hardener are compoundable. In an embodiment of the invention, the substrate comprises a flexible substrate or a rigid substrate. In an embodiment of the invention, the antistatic material is more distributed on the surface of the substrate composed of the polymer material of the polyacrylic acid. The invention further provides a method of preparing an optical grade antistatic adhesive coating. The steps include preparing a first formulation from an acrylic acid scoring material and a solvent. Further, a second formulation is prepared by using a hardener and an antistatic material, wherein the antistatic material and the hardener are compoundable. Next, the first formulation and the second formulation were uniformly mixed to prepare an optical grade antistatic adhesive coating. In an optical grade antistatic adhesive coating and a method of producing an optical grade antistatic adhesive coating according to an embodiment of the present invention, the material of the hardener includes a gas isocyanate. In an optical grade antistatic adhesive coating and an optical grade antistatic adhesive coating preparation method according to an embodiment of the invention, the polyacrylic acid polymer material comprises a urethane acrylic resin, a polyester acrylic resin, a propylene acrylic acid resin, and a fat. Group of polyurethane hexaacrylate oligomers, aliphatic polyurethane acrylate oligomers or combinations thereof. Optical grade antistatic adhesive coating and light in an embodiment of the invention 6 201239418

In the preparation method of 37729twf.doc/I grade antistatic adhesive coating, the above antistatic material includes polyethylene glycol (PEG), diundecyl amine, triphenyl phosphorite (triphenyl phosphorite) Or a combination of the above. In an optical grade antistatic adhesive coating and a method of preparing an optical grade antistatic adhesive coating according to an embodiment of the invention, the antistatic material comprises a cationic group type antistatic material having a solid content of more than 10% by weight. In the method of producing an optical grade antistatic adhesive coating according to an embodiment of the present invention, the solvent includes a solvent. The invention further provides a method of making an optical grade antistatic adhesive coating. The steps of the method include preparing an optical grade antistatic adhesive coating in accordance with the aforementioned method of preparing an optical grade antistatic adhesive coating. Next, an optical grade antistatic adhesive coating is applied to a substrate. Subsequently, a curing process is performed to cure the optical grade antistatic adhesive coating on the substrate to -囍: mm. In the optical grade antistatic stretching method of one embodiment of the present invention, the curing process includes a thermal curing process. Turn over! 'Antistatic material combined with hardener to make antistatic coating (4) silk-grade adhesive coating. Antistatic material is distributed inside the adhesive coating, antistatic effect of pre-stage antistatic coating. Therefore, the antistatic antistatic effect of the present invention can be used as an antistatic effect for adhering two objects. - The layer is considered to be two objects in order to make the above features and advantages of the present invention more clearly coated on the substrate can be used as a polarizing plate = electrostatic adhesion antistatic effect, dispute; from ^ ° vine tablets for the ideal below Special display, easy, ten, 201239418

37729twf.d〇c/I The embodiment is described in detail with reference to the accompanying drawings. [Embodiment] In general, a substrate as a protective film needs to be coated with an antistatic coating on its surface. Current antistatic coatings provide an electrostatic effect by using an ionically conductive high knife, such as a complex of p〇lyethyiene oxide. Although such molecules provide electrical conductivity to prevent the occurrence of electrostatic discharge, this type of molecule is only distributed on the surface of the antistatic coating to provide electrical conductivity, and thus such an antistatic coating is still limited in its antistatic ability. In order to improve the antistatic ability of the antistatic coating, the antistatic coating has room for improvement. In order to achieve the above object, a new optical grade antistatic coating and related preparation processes are proposed below to illustrate the spirit of the present invention. 2 is a schematic view showing a protective film having antistatic ability according to an embodiment of the present invention. Referring to FIG. 2, the protective film 2 includes, for example, a substrate 21A, a wear layer 220, an optical grade antistatic adhesive coating 230, a release film 24A, and a plurality of antistatic layers 252, 254. The wear-resistant layer 220 and the optical-grade antistatic adhesive coating 23 are respectively disposed on opposite sides of the substrate 210, wherein the wear-resistant layer 22 can provide scratch-resistant and wear-resistant properties, and thus can also be referred to as an anti-wiping layer and a hard layer. Coating, etc. The release film is disposed on a side of the optical grade antistatic adhesive coating 230 away from the substrate 21 , wherein the release film 240 may include a release substrate 242 and a release coating 244, and is resistant to the anti-static coating. Adhesive coating 230. When the protective film 200 is to be attached to an object to be protected (for example, a display panel), the release liner 240 may be peeled off from the optical grade antistatic adhesive coating bo.

201239418 37729twf.doc/I From this point, the optical grade antistatic adhesive coating 230 adheres to the object to be protected. Further, in order to provide a desired antistatic action of the protective film 200, additional antistatic layers 252, 254 are optionally disposed between the abrasion resistant layer 220 and the substrate 21A and outside the release substrate 242. However, the present invention is not limited to the protective film 200 of the above structure. In one embodiment, another antistatic layer (not shown) may be disposed between the optical grade antistatic adhesive coating 23 and the substrate 21A. Alternatively, the protective film may omit the configuration of the antistatic layers 252, 254. In other words, the structure of the protective film 2 is merely exemplified herein, and is not intended to limit the number of constituent layers and the structure of the protective film 200 of the present invention. In the present embodiment, the substrate 210 may be a rigid substrate or a flexible substrate. In the case of the flexible substrate, the material of the substrate 21〇 may be polyethylene to polyethylene terephthalate (PET). Of course, the invention is not limited thereto, and the material of the substrate 210 may be other. High two ^ material or glass. The optical grade antistatic adhesive coating 23A coated on the substrate 210 includes a substrate 232 and an antistatic material 234. The matrix 232 comprises a polyacrylic polymer material which is cured by a hardener, and the antistatic material 234 is distributed inside the matrix 232 of the polyacrylic polymer material, wherein the antistatic material 234 and the hardener are compoundable. . In addition, the embodiment does not limit the antistatic material 234 in the optical antistatic coating 230 to be distributed inside the substrate 232. In an embodiment, the antistatic material 234 may be more distributed in the polyacrylic polymer material. Substrate 232 surface. In this embodiment, the resistance of the optical grade antistatic adhesive coating 23〇

201239418 37729twf.doc/I The electrostatic material 234 is distributed inside the substrate 232 or simultaneously distributed inside and on the surface of the 232. The optical grade antistatic adhesive coating 23 can provide a relatively good antistatic. In short, in addition to the adhesive properties of the optical-grade antistatic dot layer 230, it is also possible to provide a static phase of the phase, so that the protective film is fine to protect the components to which it is attached. The method of fabricating the optical grade antistatic adhesive coating 23 can include several steps as described below. First, a first formulation is prepared using a high acid material of acrylic acid and a solvent. Moreover, the second formulation is prepared by hardening the anti-static material, wherein the antistatic material and the hardener are compoundable. Next, the first formulation is uniformly mixed to obtain a fresh antistatic adhesive coating. 4. The optical grade antistatic adhesive coating (4) is applied to a substrate (for example, the substrate 21G as shown in Fig. 2). Subsequently, the optical grade antistatic lining (4) on the substrate of the ϋ ϋ 纽 成 形成 形成 形成 形成 形成 形成 形成 形成 形成 形成 形成 形成 形成 形成 形成 形成 形成 形成 形成 形成 形成 形成 形成 形成 形成 形成 形成 形成 形成 形成 形成 形成 形成 形成 形成 形成 形成 形成 形成Perform photocuring and thermal curing processes. . In other words, the polyacrylic polymer material of the present embodiment includes polyamine S, C, acid touch, poly (tetra) miscellaneous, occupational acrylic resin, aliphatic polyurethane hexa-(tetra) silk, and fat duty poly-dipropylene. Dilute vinegar oligomers or combinations thereof. The solvent includes a toluene solvent. The material of the hardener includes isocyanate. Further, the antistatic material includes pethylene glycol (PEG), diuncjeCyi amine, tnphenyl phosphorite or a combination thereof. It is to be understood that the above materials are merely illustrative of the materials that may be used in the present invention and are not intended to limit the materials employed in the present invention. For example, any anti-hardening agent can be combined with 201239418

37729twf.doc/I Electrostatic materials can be used in the hair _ various implementations. In order to be a good combination with the hardener, the antistatic material may be a cationic group type antistatic material including a solid content of more than 10% by weight. - Several examples will be given below to illustrate the characteristics of the preparation method of the optical-grade antistatic adhesive coating of the present invention and the coating prepared by such a method. . Example: 1. The manufacturer can take a 50ml glass bottle to hold the original. In this example, for example, 10g of stupid solvent is first added to the glass bottle. Connected, 'In the 13⁄4 speed women's plus C riding copolymer adhesive material 2〇g (for example, model PSA-12 ‘Suiyu Industrial Co., Ltd.). Then, the mixture in the glass bottle was made into a photocurable resin (first formulation) having a solid content of about 50%. In addition, 1 g of isocyanate (for example, model Ν3300, Bayer Corporation) was added to 0.03 g of an ionic antistatic material (for example, model SN, produced by Cytec a) to obtain a second formulation. Since the antistatic material used in the present invention and the isocyanide-based hardener can be combined with each other, the components are mutually soluble. Therefore, the second formulation is a mixture of uniform mixing, and then the mixture of the first formulation and the second formulation is used. After high-speed stirring, an optical grade antistatic adhesive coating of about 33 〇 3g can be prepared. Factory Example 2. The manufacturer can take a 50 ml glass bottle to hold the raw material L. In this example, for example, a solvent of 1 〇g benzene is first added to the glass bottle. Then, the acrylic copolymer adhesive material 2 〇g (for example, model PSA-14, manufactured by Suiyu Industrial Co., Ltd.) was added under high-speed stirring. Then, the mixture in the glass bottle is formulated into a photocurable resin having a solid content of about 50%.

201239418 37729twf.doc/I (also known as the first formula). In addition, lg isocyanate (for example, model N3300, manufactured by Bayer) is added to an ionic antistatic material (for example, model SN, manufactured by Cytec) to obtain a second formulation. Next, the mixture of the first formulation and the second formulation is stirred at a high speed to prepare about 33.03 g of an optical grade antistatic adhesive coating. Example 3. A 50 ml glass bottle can be used by the manufacturer to hold the raw material. In this example, for example, 1 g of toluene solvent is first added to a glass bottle. Next, 20 g of an acrylic copolymer adhesive material (for example, model PSA-12 ‘Suiyu Industrial Co., Ltd.) was added under high-speed stirring. Then, the mixture in the glass bottle is formulated into a photocurable resin having a solid content of about 50% (i.e., the first formulation). In addition, lg isocyanate (for example, model N3200, manufactured by Bayer) is added to 0.03 g of an ionic antistatic material (for example, model SN, manufactured by Cytec) to prepare a second formulation. Next, the mixture of the first formulation and the second formulation is stirred at a high speed to prepare about 33.03 g of an optical grade antistatic adhesive coating. Example 4. A 50 ml glass bottle can be used by the manufacturer to hold the raw material. In this example, for example, a solvent of l〇g benzene is first added to a glass bottle. The receiver was added with 20 g of an acrylic copolymer adhesive material (for example, PSA-14, manufactured by Suiyu Industrial Co., Ltd.). Then, the mixture in the glass bottle is formulated into a photocurable resin (i.e., the first formulation) having a solid content of about 5%. In addition, take lg isocyanate (for example, model number N3200, Bayer Corporation 12 201239418

37729twf.doc/I Production) Add 0.03g of ionic antistatic material (for example, type sn, manufactured by Cytec) to react first to prepare a second formulation. Then, the mixture of the first formulation and the second formulation is mixed at a high speed to prepare an optical grade antistatic adhesive coating of about 33. 3g. Further, the antistatic adhesive coatings of the above Examples 1 to 4 can be coated on a PET substrate using a coating bar No. 22, and subjected to a heat curing process to form an optical-grade antistatic adhesive coating on the PET substrate. In particular, the step of the heat curing process is, for example, drying the optical grade antistatic adhesive on the PET substrate at a temperature of 110 ° C for 6 minutes to cure the film. Further, the optical-grade antistatic adhesive coating formed by the adhesive coatings of Examples 1 to 4 was, for example, ΙΟμη thick. Table 1 shows the properties exhibited in each test for the optical grade antistatic adhesive coatings which were coated on the PET substrate for Examples 1 to 4 to a thickness of 1 μm. Table 1 Example 1 Example 2 Example 3 Example 4 Transmittance > 89% > 89% > 89% > 89% Haze (Hz%) < 5% < 5% < 5% < 5 % 百格测试5B 5B 5B 5B Peeling force ^ 30.0 g/25 mm2 ^ 30.0 g/25 mm2 ^ 30.0 g/25 mm2 ^ 30.0 g/25 mm2 13

201239418 37729twf.doc/I Surface Impedance ^1010 S1010 ^1〇10 ^1010 Value Ω / Port Ω / Port Ω / Port Ω / d Here are the test methods for each test: Transmittance Test: Use NDH- The Model 2000 Turbidimeter/Haze Meter tests the penetration and haze of an optical grade antistatic adhesive coating. Hundreds of tests: Apply a few strips of tape to the optical grade antistatic adhesive coating on the substrate surface and then peel the tape away from the optical grade antistatic adhesive coating. Peel force test, wherein Figure 3 shows the process of peel force test: (1) The above pET substrate coated with the optical grade antistatic adhesive coating was cut into test pieces 31 宽, 25 mm wide and 300 mm long, each Make 3 test strips 310. (2) A steel sheet 320 (for example, 304 or 3〇2 stainless steel) is provided, wherein the specification of the steel sheet 320 is: thickness of 1.1 min or more, width of about 5 mm, length of about 150 mm, and surface roughness (surface r〇) Ughness) is in the range of 5 〇 ± 25 nm. (3) The surface of the steel sheet 320 is first wiped with a volatile solvent such as MEK, n-ethane or acetone, and left for 5 minutes to completely dry the surface. If it is not used for more than 1 hour, the steel sheet 320 needs to be washed again. (4) Pressing is performed using the roller 330, wherein the roller 33 is a metal wheel having a width of 45: bl 5 mm and a diameter of 85 ± 2.5 mm, and the outer wheel is covered with a rubber of 6 mm thick, and the rubber hardness is 80 ± 5 Hs 'roller 330 Weight 2040 ± 45 g. (5) The front end of the test strip 310 is kept at about mm, and the test strip 310 is used as a scroll wheel.

The 37729 twf.doc/I 330 is rolled back and forth and pressed onto the steel sheet 320. (6) The peeling force required for the steel sheet 32 〇 peeling test piece 31 测试 was measured using a two-column tensile tester. Surface Impedance Test: The impedance of the optical grade antistatic adhesive coating was measured using a high resistivity meter MCP-HT450. According to the data shown in Table 1, the optical grade antistatic adhesive coating prepared by the method described in the above Example to Example 4 has a surface resistance = less than 101 〇 Ω / □, compared to the surface impedance of the ruthenium substrate. The value (about (3) mouth) is lower than the end. Therefore, the optical grade antistatic spot coating of the present invention can provide the desired antistatic ability. In addition, the deterioration of the peeling force also shows that the optical grade antistatic adhesive coating of the present invention has an ideal viscosity and effect. Of course, the optical grade antistatic adhesive coating of the present invention also exhibits desirable light transmittance and haze in terms of optical properties. Therefore, it can be seen from the characteristics presented in Table 1 that the optical grade antistatic adhesive coating of the present invention conforms to the optical grade coating and provides good adhesion characteristics as well as antistatic properties. It is also worth mentioning that, in view of the above characteristics of the optical grade antistatic adhesive coating of the present invention, the optical grade antistatic adhesive coating of the present invention can be applied in addition to being smeared on the substrate to form a protective film. In electronic production = film layer. For example, when the optical private two-electrostatic adhesive coating described in the various embodiments of the present invention is applied to the polarizing plate 100 of FIG. i, it can be disposed between the = cellulose phthalate film 140 and the release film to replace the original one. Adhesive 15 〇. As described above, the present invention selects an antistatic material which can be combined with a hardener.

201239418 37729twf.doc/I to produce an optical grade transfer coating with antistatic effect. Moreover, in the case of the coating used in the production of the optical-grade antistatic adhesive coating, the antistatic material is mixed with the hardening and then mixed with the olefinic polymer material. In this way, the antistatic effect of the optical grade layer. Therefore, the present invention can be used as a protective sheet for a polarizing plate to provide an ideal resistance to '=2? as a (four) layer for adhering two objects as two objects. Although the present invention has been disclosed as an example above, bran In view of the present invention, any one of ordinary skill in the art is limited to the spirit and scope of the present invention (4), # can be made a little ^ without departing from the scope of protection of the invention, when attached to the patent application r:=: two [Figure BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic view of a known polarizing plate. Membrane::? is an antistatic ability protection of the present invention-embodiment. Fig. 3 illustrates the process of the peeling force test. [Explanation of main component symbols] 1G(): polarizing plate U0, 200: protective 貘 120, 14〇: cellulose triacetate film 201239418

37729twf.doc/I 130: polyvinyl alcohol film 150: adhesive 160, 240: release film 210: substrate 220: wear layer 230: optical grade antistatic adhesive coating 232: substrate 234: antistatic material 242: Release substrate 244: release coating 252, 254: antistatic layer 310: test piece 320: steel sheet 330: roller 17

Claims (1)

201239418 37729twf.doc/I VII. Patent application scope: 1. An optical grade antistatic adhesive coating coated on a substrate, the optical grade antistatic adhesive coating comprises: a substrate comprising: a hardener The cured polyacrylic polymer material; and an antistatic material are distributed inside the matrix composed of the polyacrylic polymer material, wherein the antistatic material is compatible with the hardener. 2. The optical grade antistatic adhesive coating according to claim 1, wherein the antistatic material is more distributed on the surface of the substrate composed of the polyacrylic polymer material. 3. The optical grade antistatic adhesive coating according to claim 1, wherein the hardener is made of an isocyanate or a melamine resin. 4. The optical grade antistatic adhesive coating according to claim 1, wherein the polyacrylic polymer material comprises urethane acrylic resin, polyester acrylic resin, epoxy acrylic resin, aliphatic polyurethane hexaacrylic acid S The valency polymer, the aliphatic polyammide g, the diacrylate or the oligo or the combination thereof. 5. The optical grade antistatic adhesive coating according to claim 1, wherein the antistatic material comprises polyethylene glycol (PEG), diundecyl amine, triphenyl carbon gray Triphenyl phosphorite or a combination of the above. 6. The optical grade antistatic adhesive coating according to claim 1, wherein the antistatic material comprises a cationic group type antistatic material having a solid content of more than 1 〇〇/〇wt. The optical grade antistatic adhesive coating of the invention of claim 1, wherein the substrate comprises a flexible substrate or a rigid substrate. δ· A method for preparing an optical grade antistatic adhesive coating, comprising: preparing a first formulation by using a acrylic acid south material and a solvent; preparing a second formulation by using a hardener and an antistatic material, wherein the anti-resistance The electrostatic material is compoundable with the hardener; and the first formulation and the second formulation are uniformly mixed to prepare the optical grade antistatic adhesive coating. 9. The method for producing an optical grade antistatic adhesive coating according to claim 8, wherein the material of the hardener comprises isocyanate. 10. The method for preparing an optical grade antistatic adhesive coating according to claim 8, wherein the polyacrylic polymer material comprises a polyurethane propionic acid resin, a polyester acrylic resin, an epoxy acrylic resin, an aliphatic polyamine. A vinegar hexaacrylate oligomer, an aliphatic urethane diacrylate oligomer, or a combination thereof. 11. The method for preparing an optical grade antistatic adhesive coating according to claim 8, wherein the antistatic material comprises polyethylene glycol (PEG), diundecyl amine, and three stupid A triphenyl phosphorite or a combination of the above. 12. The method for producing an optical grade antistatic adhesive coating according to claim 8, wherein the antistatic material comprises a cationic group type solution having a solid content greater than 5%. 13. The method of preparing an optical grade antistatic adhesive coating according to claim 8, wherein the solvent comprises a toluene solvent. 201239418 37729twf.doc/I 14. A method for producing an optical grade antistatic adhesive coating, comprising: preparing the optical grade antistatic adhesive coating according to the preparation method of the optical grade antistatic adhesive coating according to claim 8 of the patent application scope ', applying the optical grade antistatic adhesive coating to a substrate; and performing a curing process to cure the optical grade antistatic adhesive coating on the substrate to an optical grade antistatic adhesive coating. The method of producing an optical grade antistatic adhesive coating according to claim 14, wherein the curing process comprises a thermal curing process.