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Stress distributing film, optical member, and electronic member

A stress dispersion, plastic film technology, applied in non-polymer adhesive additives, layered products, chemical instruments and methods, etc., can solve problems such as damage to optical components and electronic components, and achieve the effect of excellent stress dispersion.

Active Publication Date: 2019-01-11
NITTO DENKO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In various situations such as assembly, processing, transportation, and use, the above-mentioned optical components and electronic components may be loaded due to press-fit force, and the optical components and electronic components may be damaged due to the load. The problem

Method used

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  • Stress distributing film, optical member, and electronic member
  • Stress distributing film, optical member, and electronic member
  • Stress distributing film, optical member, and electronic member

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0093] Hereinafter, although an Example demonstrates this invention concretely, this invention is not limited to these Examples. In addition, the test and evaluation method in an Example etc. are as follows. In addition, when described as "part", unless otherwise specified, it means "weight part", and when described as "%", unless otherwise specified, it means "weight%".

[0094]

[0095] The weight average molecular weight (Mw) of a polymer is measured using the Tosoh Corporation GPC apparatus (HLC-8220GPC). In addition, weight average molecular weight (Mw) was calculated|required from the polystyrene conversion value.

[0096] The measurement conditions are as follows.

[0097] Sample concentration: 0.2% by weight (THF solution)

[0098] Sample injection volume: 10μl eluent

[0099] THF flow rate: 0.6ml / min

[0100] Measuring temperature: 40°C

[0101] Sample column: TSKguardcolumn SuperHZ-H (1 piece) + TSKgel SuperHZM-H (2 pieces)

[0102] Reference column: TSKgel ...

Embodiment 2、4、6、8、10、12、14、16、18、20、22、24

[0107] (Examples 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, Comparative Examples 2, 4, 6, 8)

[0108] The obtained adhesive composition was applied to a base material "Lumirror S10" (thickness 38 μm, manufactured by Toray Co., Ltd.) made of polyester resin with a liquid supply roll so that the thickness after drying was 22 μm, and dried at a temperature of 130 ℃, drying time of 30 seconds, curing and drying. In this way, an adhesive layer is formed on the substrate. Next, the surface of the pressure-sensitive adhesive layer was bonded to the silicone-treated surface of a base material made of a polyester resin having a thickness of 25 μm that had been subjected to silicone treatment on the other surface to obtain a pressure-sensitive adhesive sheet (A).

[0109]

[0110] Using "SAICA SDN-20 type" manufactured by Daipla Wintes Co., the indentation energy was calculated in the following procedure at a measurement temperature: 25° C. and an indentation speed: 5 μm / sec.

[01...

Embodiment 1、2

[0143] In the solution of the (meth)acrylic polymer (1), with respect to 100 parts by weight of the solid content of the solution of the (meth)acrylic polymer (1), the overall solid content becomes 25% by weight, Diluted with ethyl acetate, stirred with a disperser, and obtained the adhesive composition (1) containing an acrylic resin. The results are shown in Table 1.

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Abstract

Provided is a stress distributing film having excellent stress distributing ability. Also provided are an optical member and an electronic member equipped with same stress distributing film. This stress distributing film comprises a layered body from a plastic film and an adhesive layer. The stress distributing film is such that, when a load is applied from the plastic film side of the layered body in an orthogonal direction to the layered body, the indentation energy is 260 [mu]J or greater.

Description

[0001] This application is a divisional application of an application with a filing date of August 16, 2016, an application number of 201680058899.X, and an invention title of "Stress Dispersion Film, Optical Components, and Electronic Components". technical field [0002] The present invention relates to a stress dispersing film, an optical member and an electronic member including the stress dispersing film. Background technique [0003] In order to impart rigidity and impact resistance to optical components such as touch panels using LCD (liquid crystal display), lens parts of cameras, and electronic equipment, and electronic components, an adhesive film may be attached to the exposed surface (for example, , Patent Document 1). Such an adhesive film usually has a base material layer and an adhesive layer. [0004] In various situations such as assembly, processing, transportation, and use, the above-mentioned optical components and electronic components may be loaded due...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/24C09J7/25C09J7/20
CPCC09J7/245C09J7/243C09J7/25C09J7/255C09J2463/00C09J2477/006C09J2479/086C09J2467/006C09J2475/00C09J2433/00C09J2423/046C09J2301/122C09J2301/124C09J2301/414C09J2301/312B32B27/00C09J11/06C09J133/02C09J133/06C09J133/14C09J175/04C09J7/20
Inventor 佐佐木翔悟徐创矢设乐浩司
Owner NITTO DENKO CORP