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Dual-curing adhesive composition

A composition and dual-curing technology, applied in the direction of non-polymer organic compound adhesives, non-polymer adhesive additives, adhesives, etc., can solve the problems of reducing adhesion and incomplete curing of the adhesive composition 121, and achieve The effect of high light transmission

Active Publication Date: 2013-01-30
ETERNAL MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In addition, if figure 1 As shown in the touch panel, a frame paint layer 14 is usually coated on the cover glass 11 of the touch panel, which is mostly black paint, and its function is to cover the lower ITO film or ITO glass 13 In order to achieve the effect of aesthetics and prevent the circuit from being harmed by external light (such as ultraviolet rays); however, the adhesive composition of the general liquid optical adhesive is a light-curing system. When the adhesive composition is in a place where light cannot be irradiated, For example, the adhesive composition 121 located in the area below the frame paint layer 14, such as figure 1 As shown, because it is covered by the frame paint layer 14 and cannot receive enough UV light irradiation, the adhesive composition 121 is prone to incomplete curing and reduces the adhesiveness.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1~7 and comparative example 1~3

[0101] The glue solution of the photocurable adhesive composition of Examples 1 to 7 and Comparative Example 1 was prepared according to the manner described below, and its composition is shown in Table 1.

[0102] Firstly, each component was mixed with the weight (grams) listed in Table 1, and stirred at room temperature and in a dark room until completely mixed uniformly to form a photocurable adhesive composition.

[0103] Table 1

[0104]

[0105] (a): Polyurethane acrylate oligomer (manufactured by Changxing Company, EX-06)

[0106] (b): Monofunctional monomer (isodecyl acrylate; produced by Changxing Company, EM210)

[0107] (c): (meth)acrylic resin containing isocyanate group (produced by Bayer, D100)

[0108] (d): polyester polyol resin (produced by Changxing Company, Eternal 5200)

[0109] (e1): photoinitiator (1-hydroxycyclohexyl phenyl ketone; produced by BASF, Irgacure 184)

[0110] (e2): Thermal initiator (349745000 corresponding product (LPO) produced by D...

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Abstract

The invention provides a dual-curing adhesive composition, comprising a) (methyl)-acrylics oligomer with at least an unsaturated group; b) monofunctional monomer, multifunctional monomer or mixture thereof; c) (methyl)-acrylate resin with isocyanate group; d) polyester polyol resin; e) an initiator; and f) a plasticizer with refractive index of more than 1.49. The dual-curing adhesive composition has themocuring and photocuring properties at the same time, and has good translucency and high refraction index. The dual-curing adhesive composition can be used in optical products, and preparing process is simplified. The dual-curing adhesive composition has good adhesiveness, good optical property, and good reprocessing property.

Description

technical field [0001] The invention relates to a dual-cure adhesive composition, in particular to a dual-cure adhesive composition that can be used for displays and touch panels. Background technique [0002] With the rapid development of the information industry, electronic products such as mobile phones, personal digital assistants, and notebook computers have become necessities in people's daily life. In these electronic products, the display is an indispensable human-machine communication interface. How to provide products that are lighter, thinner and have better visual effects has always been one of the main R&D goals of the industry. In recent years, the industry has integrated the touch panel (Touch Panel) with the display, and applied it to various electronic products, allowing users to directly click on the panel to perform various operations, providing a more convenient and humanized operation mode. [0003] like figure 1 As shown, there is generally a cover g...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J4/02C09J4/06C09J11/06
Inventor 张益信石训嘉
Owner ETERNAL MATERIALS CO LTD
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