Adhesive sheet

A technology for bonding sheets and sheets, applied in the direction of adhesives, adhesive products, film/sheet adhesives, etc., to achieve the effects of good air leakage, stable opening degree and improved reliability

Inactive Publication Date: 2013-07-31
TOYO ALUMINUM EKCO PRODUCTS KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, such problems are also the same in adhesive sheets that do not have light-shielding properties.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0124] Embodiment 1 is the same as the light-shielding sheet based on the first embodiment, as figure 2 As shown, the length A of the first straight portion 51 of the slit 41 is set to 1.0mm, and the length B of each of the second straight portions 52a, 52b and each of the third straight portions 53a, 53b is set to 1.0 mm. Set to 0.1mm. In addition, the angle θ formed by each of the second linear portions 52a, 52b and each of the third linear portions 53a, 53b with the virtual straight line 35 is set to 30°. Furthermore, the density of the slits 41 is set to 400 places / 100cm 2 .

Embodiment 2

[0125] Example 2 is an example in which the angle θ of the slit is changed to 60° from the structure of the first example.

Embodiment 3

[0126] Example 3 is an example in which the angle θ of the slit is changed to 150° from the structure of Example 2, that is, it is the same as Figure 5 The slit 42 is shown in the same embodiment.

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PUM

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Abstract

The light-blocking sheet (11), which is an adhesive sheet, is mainly configured from a sheet (20) obtained from PET, etc. and an adhesive layer (31) that is formed on the underside of the sheet (20) and is obtained from a silicone adhesive. Slits (41) formed so as to pierce the light-blocking sheet (11) are configured from a first linear part (51), and a pair of second linear parts (52a, 52b) and a pair of third linear parts (53a, 53b) that extend respectively from the two ends of the first linear part (51). Because such slits (41) are configured so as not to overlap lines, represented by the dashed lines, which tie the one ends thereof with the other ends, the outward opening of each of the areas (65a - 65d) configured by the lines represented by the dashed lines and the slit (41) is facilitated. Consequently, during adhesion, escape of air between the light-blocking sheet (11) and the adherend is facilitated and because the opened areas subsequently return to the original state, light-blocking properties are not reduced.

Description

technical field [0001] This invention relates to an adhesive sheet, and particularly relates to an adhesive sheet used for sticking to a smooth adherend such as a window glass or a liquid crystal display. Background technique [0002] Various types of adhesive sheets have been proposed as adhesive sheets used for sticking to smooth adherends such as window glass. Among them, there is an adhesive sheet that eliminates air pockets generated when sticking to an adherend (for example, Patent Document 1). [0003] Figure 14 is a plan view of the adhesive sheet disclosed in Patent Document 1, Figure 15 yes Figure 14 A magnified view of the Y section shown, Figure 16 yes Figure 15 Sectional view of line XVI-XVI shown. [0004] Referring to these figures, the adhesive sheet 70 as the adhesive sheet is as Figure 16 As shown, it includes a substrate 71 made of a synthetic resin film, etc., a decorative layer 72 formed on the upper surface of the substrate 71 and printed or ...

Claims

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Application Information

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IPC IPC(8): C09J7/02B32B27/00C09J7/29
CPCB32B3/02C09J2201/162C09J7/0296C09J2201/20B32B27/00C09J7/02C09J7/29C09J2301/18C09J2301/162B32B27/36B32B7/06B32B2307/732B32B2255/205B32B27/10B32B2405/00B32B2307/748B32B2255/10B32B7/12B32B3/266B32B2250/03B32B27/08B32B2307/71
Inventor 松井哲也
Owner TOYO ALUMINUM EKCO PRODUCTS KK
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