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Adhesive tape

A tape and gluing technology, applied in the direction of adhesives, film/sheet adhesives, pressure-sensitive films/sheets, etc., can solve the problem of reduced adhesive force and achieve the effect of inhibiting contact

Active Publication Date: 2014-05-07
NITOMS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

That is, in conventional adhesive tapes, resin films such as polyester are used as substrates, and when water-swellable adhesives are used on these substrates, water must slowly penetrate from the periphery of the substrate in order to make the adhesive contain water in the pasted state. , it takes a long time for the adhesive to swell until the adhesive force is reduced

Method used

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Embodiment Construction

[0039] The best way to practice the invention

[0040] Next, embodiments of the present invention will be described with reference to the drawings, but the present invention is not limited thereto. figure 1 It is a cross-sectional view of main parts showing the state of use of the adhesive tape according to Embodiment 1 of the present invention, figure 2 It is (a) rear view and (b) A-A line sectional view which show the modification. image 3 It is (a) rear view and (b) B-B line sectional view which show another modification. Figure 4 (a) and (b) are cross-sectional views of main parts showing modified examples of the base material.

[0041] Figure 5 It is a front view showing a modified example of the base material. Figure 6 It is a cross-sectional view of main parts showing the state of use of the adhesive tape according to Embodiment 2 of the present invention, Figure 7 It is a cross-sectional view of a main part showing a modified example thereof. Figure 8 It i...

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Abstract

Provided is a pressure-sensitive adhesive tape which is improved so that it can be more easily released in the case of using a water-swellable pressure-sensitive adhesive agent as a pressure-sensitive adhesive agent for household pressure-sensitive adhesive tapes.  As a substrate (2) of a pressure-sensitive adhesive tape (1) wherein a pressure-sensitive adhesive layer (3) containing a water-swellable pressure-sensitive adhesive agent, which is swollen when it contains water, is formed, a water-permeable material is used so as to allow the water-swellable pressure-sensitive adhesive agent to more easily contain water.

Description

technical field [0001] BACKGROUND OF THE INVENTION Field of the Invention The present invention relates to an adhesive tape incorporating a water-swellable adhesive that swells with water, and more particularly, to an adhesive tape using a water-swellable adhesive as an adhesive for conventional household tapes. Background technique [0002] Most of the usual adhesive tapes are obtained by coating one side or both sides of a sheet-shaped substrate with an adhesive which always has pressure-sensitive adhesive properties. However, with conventional tapes, when the tape is peeled off, it is difficult to completely peel off the wall surface due to adhesive residue on the wall surface or cracking of the base material due to deterioration. [0003] On the other hand, some pressure-sensitive adhesives that can be peeled off with water are known. The pressure-sensitive adhesive using water has three types: water-soluble, water-dispersible, and water-swellable. Water-soluble and wa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J7/02C09J7/38
CPCC09J5/00C09J7/0207C09J2205/302C09J7/38C09J2301/502C09J7/22C09J7/30C09J7/26C09J11/00C09J2301/16C09J2301/302
Inventor 柴田和成里田良成西川崇小川隆久
Owner NITOMS INC