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Pressure-sensitive adhesive for polaroid

A pressure-sensitive adhesive and polarizer technology, which is applied in the direction of adhesive types, non-polymer adhesive additives, adhesive additives, etc., can solve the problems of pressure-sensitive adhesive adhesive performance reduction, pressure-sensitive adhesive transparency reduction, etc. Achieve the effect of excellent compatibility and excellent optical transparency

Inactive Publication Date: 2012-02-15
YANTAI DARBOND TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the deficiencies in the prior art that the addition of conductive metal powder or carbon particles causes the transparency of the pressure-sensitive adhesive to decrease, and the addition of surfactants will lead to a decrease in the adhesive performance of the pressure-sensitive adhesive, the present invention provides a hydrophobic ionic liquid as an anti- Electrostatic agent and optically clear, durable and reliable polarized pressure sensitive adhesive

Method used

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  • Pressure-sensitive adhesive for polaroid
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  • Pressure-sensitive adhesive for polaroid

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Weigh 99 parts of n-butyl acrylate (n-BA) and 1 part of acrylic acid (AA) in parts by weight, add them to a 1L four-necked flask equipped with a condenser and stirrer, and then add 100 parts of ethyl acetate The temperature in the bottle is maintained at 65° C. after deoxygenation by blowing nitrogen for 1 hour, adding 0.05 parts of initiator azobisisobutyronitrile (AIBN), reacting for 8 hours to obtain acrylic acid copolymer. 100 parts of the above acrylic copolymer, 0.5 parts of HDI trimer aliphatic polyisocyanate (N3300), 4 parts of 1-butyl-3-methylimidazole hexafluorophosphate ([Bmim]PF 6 ) Put it into a three-necked flask and mix evenly, adjust the mixture to a suitable viscosity with ethyl acetate, coat it on the release paper with a 40μm wire bar coater, and put it in an oven at 90°C to dry it.

[0025] The durability and reliability test results are shown in Table 1.

Embodiment 2

[0027] Weigh 90 parts of n-butyl acrylate (n-BA) and 10 parts of acrylic acid (AA) according to parts by weight, add them to a 1L four-necked flask equipped with a condenser and stirrer, and then add 100 parts of ethyl acetate The temperature in the bottle is maintained at 65° C. after deoxygenation by blowing nitrogen for 1 hour, adding 0.05 parts of initiator azobisisobutyronitrile (AIBN), reacting for 8 hours to obtain acrylic acid copolymer. 100 parts of the above acrylic copolymer, 0.1 part of trimethylolpropane toluene diisocyanate adduct (L75), 1 part of trihexyltetradecyl hexafluorophosphate ([P666-14]PF 6 ) Put it into a three-necked flask and mix evenly, adjust the mixture to a suitable viscosity with ethyl acetate, coat it on the release paper with a 40μm wire bar coater, and put it in an oven at 90°C to dry it.

[0028] The durability and reliability test results are shown in Table 1.

Embodiment 3

[0030] Weigh 95 parts of n-butyl acrylate (n-BA), 4 parts of acrylic acid (AA) and 1 part of 2-hydroxyethyl acrylate (HEA) according to parts by weight and add them to 1L equipped with condenser and stirrer. After the four-necked flask, add 100 parts of ethyl acetate. After deoxygenating with nitrogen for 1 hour, the temperature in the bottle is maintained at 65°C. Add 0.05 parts of initiator azobisisobutyronitrile (AIBN). After 8 hours of reaction, acrylic acid is obtained. Copolymer. Combine 100 parts of the above acrylic copolymer, 0.25 parts of tris(acryloxyethyl) isocyanurate (M-315), 2 parts of 1-ethyl-2-methylpyrazole bistrifluoromethanesulfonimide Salt ([EmPyr]TF 2 N) Put it into a three-necked flask and mix evenly, adjust the mixture to a suitable viscosity with ethyl acetate, coat it on the release paper with a 40μm wire bar coater, and put it in a 90°C oven to dry it.

[0031] The durability and reliability test results are shown in Table 1.

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Abstract

The invention relates to a pressure-sensitive adhesive for a polaroid. The pressure-sensitive adhesive for the polaroid comprises 100 weight parts of crylic acid copolymer, 0.1 to 0.5 weight part of isocyanate-based crosslinking agent and 1 to 4 weight parts of hydrophobic ionic liquid, wherein the hydrophobic ionic liquid serves as an antistatic agent and has compatibility with the pressure-sensitive adhesive. The pressure-sensitive adhesive for the polaroid adopts the hydrophobic ionic liquid serves as the antistatic agent, and is optically transparent, durable and reliable.

Description

Technical field [0001] The invention relates to a pressure-sensitive adhesive for polarizers, in particular to a pressure-sensitive adhesive for polarizers using hydrophobic ionic liquid as an antistatic agent. Background technique [0002] In the production of LCDs, static electricity can cause various problems. For example, when the release film is peeled from the pressure-sensitive adhesive layer during the LCD construction process to bond the polarizer to the liquid crystal cell, static electricity is generated. The generated static electricity affects the orientation of liquid crystals in the LCD, thereby causing defects. In addition, in the high-speed structure of the polarizer, when the protective film of the polarizer is peeled off, the generated static electricity leads to the breakdown of the TFT IC device, which leads to the defect of the liquid crystal display panel. One of the solutions can suppress the generation of static electricity by forming an antistatic layer...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J133/08C09J133/10C09J11/06
Inventor 吴波王建斌陈田安
Owner YANTAI DARBOND TECH
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