Adhesive film

A pressure-sensitive adhesive, pressure-sensitive adhesive technology, applied in pressure-sensitive films/sheets, adhesive types, ester copolymer adhesives, etc., can solve problems such as bulging over time, and achieve excellent impact resistance , The effect of excellent heat stretchability

Active Publication Date: 2019-06-07
RIKEN TECHNOS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The object of the present invention is to provide a pressure-sensitive adhesive film that solves the problem of swelling over time during low-temperature construction

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0099] Hereinafter, although an Example demonstrates this invention, this invention is not limited to these Examples.

[0100] Measurement and Evaluation Methods of Physical Properties

[0101] (i) Adhesion at a temperature of 5°C

[0102] After adjusting the state of the pressure-sensitive adhesive film for more than 24 hours in an environment with a temperature of 5° C. and a relative humidity of 50%, use Tuckine Chekka (Model HTC-1) of Toyo Seiki Manufacturing Co., Ltd. under the same environment, The pressure-sensitive adhesive of the pressure-sensitive adhesive film was measured under the conditions that the type of contact is a flat surface indenter (model AL-M1), the contact crimping force is 5N, the crimping time is 3 seconds, and the number of repeated tests is 5 times. Adhesion of the surface on the layer side (unit: N). The results reported in the table are the average value of 5 tests.

[0103] (ii) Adhesion at a temperature of 35°C

[0104] After conditionin...

example 1

[0140] 100 parts by mass of the above-mentioned component (A-1), 1.22 parts by mass of the above-mentioned component (B-1) (in terms of solid content), 22.5 parts by mass of the above-mentioned component (C-1), 7.5 parts by mass of the above-mentioned component (C-2) and 69 parts by mass of the above component (C-3) were mixed and stirred to obtain a pressure-sensitive adhesive. Next, the pressure-sensitive adhesive obtained above was coated on the release surface of the release paper using a roll coater so that the thickness after drying became 45 μm, and dried in a drying oven to form a pressure-sensitive adhesive layer. Next, use the image 3 The device shown in the conceptual diagram in , the laminate 5 of the release paper and the pressure-sensitive adhesive layer obtained above, the above-mentioned (α-1) polyvinyl chloride-based resin film 6 and the pressure-sensitive adhesive layer of the laminate 5 In such a manner that the above-mentioned (α-1) polyvinyl chloride-bas...

example 2～7

[0142] Except having changed the compounding quantity (parts by mass) of the pressure-sensitive adhesive as shown in Table 1, it carried out similarly to Example 1, and performed the measurement and evaluation test of the manufacture of a pressure-sensitive adhesive film and a physical property. The results are shown in Table 1.

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Abstract

In one embodiment, the present invention is an adhesive film having (alpha) a layer of polyvinyl chloride resin film and (beta) an adhesive layer in the stated order from the surface-layer side, wherein the (beta) adhesive layer is formed from an adhesive including: (A) 100 parts by mass of an acrylic polymer that satisfies the features (a1) and (a2), specifically (a1) an acid value of 18-27 mg KOH / g, and (a2) a mass-average molecular weight of 500,000 to 1,000,000; and (B) 0.1-3 parts by mass of a compound having two or more isocyanate groups per molecule. In another embodiment, the present invention is an adhesive film having (alpha) a layer of polyvinyl chloride resin film and (beta) an adhesive layer in the stated order from the surface-layer side, wherein the (beta) adhesive layer hasa tackiness of 12-25 N at a surface temperature of 5 DEG C and has a tackiness of 12-23 N at a surface temperature of 35 DEG C.

Description

technical field [0001] The present invention relates to pressure sensitive adhesive films. More specifically, the present invention relates to a pressure-sensitive adhesive film suitable for makeup and decoration of walls and the like. Background technique [0002] So far, pasting cosmetics has been applied to the surface of walls made of wood-based materials such as wood, plywood, laminated lumber, particle board, and hardboard; metal-based materials such as iron and aluminum; and inorganic materials such as gypsum. · Decorative pressure-sensitive adhesive films (so-called wallpapers) for makeup · decoration. At this time, it is required to apply the pressure-sensitive adhesive film without appearance defects such as swelling and wrinkles caused by air or foreign matter trapped between the surface of the wall and the surface of the pressure-sensitive adhesive layer of the wallpaper. However, if the pressure-sensitive adhesive film is applied in the cold period of winter, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/38B32B27/00B32B27/30C09J133/00C09J175/04
CPCB32B27/00B32B27/30C09J133/00C09J175/04C09J7/24C09J7/385C09J2433/00C09J2427/006C09J2301/408C09J7/245C09J7/30C09J11/06C09J2301/312C09J7/38B32B7/12B32B27/304B32B2333/12B32B2607/02C09J133/10
Inventor 猪股仁美涌川泷雄
Owner RIKEN TECHNOS CORP
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