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Adhesive composition for touch panel, adhesive film, and touch panel

A touch panel and adhesive technology, applied in the direction of non-polymer organic compound adhesives, adhesives, adhesive types, etc., can solve problems such as voids and detachment, and achieve the effect of preventing yellowing and whitening

Active Publication Date: 2013-08-07
KOZA NOVEL MATERIALS KOREA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, under high temperature and high humidity conditions, the binder is detached from the ITO due to the high temperature, and thus voids may be generated between the etched uneven surface of the ITO and the binder

Method used

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  • Adhesive composition for touch panel, adhesive film, and touch panel
  • Adhesive composition for touch panel, adhesive film, and touch panel
  • Adhesive composition for touch panel, adhesive film, and touch panel

Examples

Experimental program
Comparison scheme
Effect test

preparation Embodiment 1

[0079] Preparation Example 1: Preparation of Partially Polymerized Acrylic Resin (A)

[0080] 55 parts by weight of ethylhexyl acrylate (EHA), 20 parts by weight of isobornyl acrylate (IBOA) and 25 parts by weight of 2-hydroxyethyl acrylate (HEA) were placed in a 1L reactor provided with a reflux condenser. It was refluxed under a nitrogen atmosphere with easy temperature adjustment, and partially polymerized, thereby preparing a slurry having a viscosity of 3,500 cps. The obtained partially polymerized acrylic resin (A) had a weight average molecular weight of 1,200,000.

preparation Embodiment 2

[0081] Preparation Example 2: Preparation of Partially Polymerized Acrylic Resin (B)

[0082] Partially polymerized acrylic resin (B) was prepared in the same manner as in Preparation Example 1. The partially polymerized acrylic resin (B) had a weight average molecular weight of 300,000.

preparation Embodiment 3

[0083] Preparation Example 3: Preparation of Partially Polymerized Acrylic Resin (C)

[0084] Partially polymerized acrylic resin (C) was prepared in the same manner as in Preparation Example 1. The partially polymerized acrylic resin (C) has a weight average molecular weight of 1,000,000.

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Abstract

The present invention relates to an adhesive composition for a touch panel, an adhesive film, and a touch panel. The adhesive composition for the touch panel of the present invention is applied to the touch panel, for example, to an electrostatic capacitance-type touch panel, for hiding the pattern of a conductive layer even when being coupled to the conductive layer formed with the pattern. Also, the adhesive composition of the present invention can prevent yellowing and whitening.

Description

technical field [0001] The present invention relates to an adhesive composition for a touch panel, an adhesive film, and a touch panel. Background technique [0002] Recently, the market for electronic devices such as personal digital assistants (PDAs), mobile communication terminals, or vehicle navigation systems is developing. Such electronic devices are being transformed into thin, light weight, low power consumption, high resolution and high brightness. [0003] Electronic devices provided with touch screens or touch panel switches as input means use transparent conductive plastic films in consideration of weight and durability. An example of the transparent conductive plastic film is a polyethylene terephthalate (PET) base film having an indium tin oxide (ITO) conductive layer formed on one side thereof, and the film is laminated on a conductive layer through an adhesive film. on glass, reinforcement or decorative film. [0004] In a touch screen or touch panel, the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J133/04C09J9/00C09J7/02C09J11/00C09J7/22C09J7/38
CPCC09J133/04C09J11/00C09J7/02C09J9/00C09J133/08C09J2203/318C09J2433/00C09J2475/00C08F220/34C09J4/06C09J133/06C09J7/38C09J7/22Y10T428/2848Y10T428/24967Y10T428/2891Y10T428/269Y10T428/1462C08F220/343C09J2301/312C09J133/10C09J11/06C08K5/11C08K5/29C09J7/255C09J7/30C08J7/04C08J5/18G06F3/041C08J2467/02
Inventor 金章淳宋玟锡朴恩敬金圣真车炯旻李沅烨金雄基
Owner KOZA NOVEL MATERIALS KOREA CO LTD
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