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Adhesive composition with excellent barrier properties

A technology of composition and binder, applied in the direction of adhesives, nonlinear optics, input/output process of data processing, etc.

Active Publication Date: 2016-10-12
LG CHEM LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, there are still difficulties in solving the above-mentioned problems in using butyl-based rubber as a binder composition

Method used

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  • Adhesive composition with excellent barrier properties

Examples

Experimental program
Comparison scheme
Effect test

experiment example

[0049] Experimental Example - Determination of Moisture Permeability and Peeling Force of Adhesive Composition

[0050] The adhesive composition of the above-mentioned embodiment and comparative example is cured by the method described in the following table 2, and then after the width is 1 inch and the length is 10 cm, after cutting, use a 2 kg roller on one side of the polycarbonate to carry out 5 30 minutes later, the peeling force was measured with a universal testing machine at a peeling speed of 300 mm / min. And, the thickness of the cured adhesive was 50 μm to form an adhesive layer, and the water vapor transmission rate (WVTR) was measured with a water vapor transmission meter Labthink, TSY-T3.

[0051] Table 2

[0052]

curing method

Moisture permeability (g / m 2 day)

Peel force(g / in)

Example 1

Thermal curing + Ultraviolet (UV) curing

5.2

1100

Example 2

Thermal curing + Ultraviolet (UV) curing

4.7

1300

Exam...

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Abstract

The present invention provides an adhesive composition comprising butyl rubber in which isoprene is polymerised in an amount of no more than 5 mol%. Also, the present invention includes touch panels and touch screens which are provided with the adhesive composition comprising butyl rubber in which isoprene is polymerised in an amount of no more than 5 mol%, and includes electronic or optoelectronic elements that have been sealed or coated or encapsulated using the adhesive composition.

Description

technical field [0001] The present invention relates to an adhesive composition excellent in barrier properties, and more specifically, provides an adhesive composition characterized by comprising a butyl-based rubber in which 5 mol% or less of isoprene is polymerized. Background technique [0002] It is well known that touch materials, including various encapsulated electronic components or transparent conductive films, need to be protected from moisture in order to maintain excellent performance or maintain a specified shelf life. Furthermore, the development of adhesive compositions for increasing the barrier properties of next generation devices such as organic light emitting diodes (OLEDs) or touch screens has attracted much attention recently. [0003] However, only studies on adhesives containing acrylic resins have been conducted, and butyl-based rubber resins have reduced barrier properties due to multiple bonding, and thus are rarely used in adhesive compositions. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J123/22C09J11/00G06F3/041H01L31/00
CPCC09J123/22H01L31/0481Y02E10/50C09J11/00G02F1/13338G06F3/041
Inventor 崔兑伊彭柱贤金章淳
Owner LG CHEM LTD
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