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Double-sided adhesive tape

A tape, double-sided technology, applied in the field of adhesive tape, can solve the problems of sheet pollution, sheet deformation, damage, etc., and achieve the effect of excellent bonding performance

Inactive Publication Date: 2012-05-30
3M INNOVATIVE PROPERTIES CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the double-sided adhesive tape of the prior art is often difficult to completely remove from the bonded two-layer board, and a large stress needs to be applied to the board during removal, which may cause large deformation and damage to the board , at the same time, there will be adhesive residue between the plates, which will pollute the plates

Method used

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Examples

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example

[0065] The present invention is described in more detail below by way of examples. It should be pointed out that these embodiments are only illustrative descriptions of the present invention, and do not constitute any limitation to the present invention. Unless otherwise specified, the percentages, contents, ratios, etc. used in the present invention are all by weight, and the temperatures used are all in degrees Celsius.

[0066] First, summarized below are abbreviations of chemical substances used in the following preparation examples.

[0067] 2EHA: Isooctyl acrylate (manufactured by BASF Corporation)

[0068] AA: Acrylic (manufactured by BASF Corporation)

[0069] EtOAc: Ethyl acetate (manufactured by Shanghai Reagent Company)

[0070] ADVN: 2,2'-azobis(2,4-dimethylvaleronitrile) (azo-type polymerization initiator, manufactured by Wako Pure Chemical Industries, Ltd.)

[0071] Foral TM 85: Tackifier (manufactured by American Eastman Company)

[0072] Irganox TM 1076:...

example 1

[0076] Adopt the VHB produced by 3M Company on the market TM 4608 acrylic as the first and second adhesive element layers, the VHB TM 4608 Acrylic is a copolymer of isooctyl acrylate and acrylic acid, both the first and second adhesive element layers have a thickness of 800 μm. Adopt PE80 linear low density polyethylene film with 80μm thickness. PE80 uses double-sided corona to improve the adhesion between it and double-sided tape, and 4608 is pressed on the front and back of PE80 by hot pressing. The total thickness of the finished product is 1,680 μm. The adhesive layer on both sides is covered with a PET release film.

example 2

[0078] 90 grams of isooctyl acrylate, 10 grams of acrylic acid were added to a 2000 ml separable flask, followed by 0.12 grams of ADVN: 2,2'-azobis(2,4 dimethylvaleronitrile) and 150 grams of acetic acid Ethyl ester was charged thereinto, and a polymerization reaction was carried out for 8 hours in a normal-temperature water bath maintained at 65° C. while blowing nitrogen gas from the lower part of the blended solution with a Pasteur pipette. Coat the above-mentioned obtained glue on a 50 μm thick PET release film with a coating thickness of 120 μm, and dry it in an oven at 105° C. for 10 minutes. After taking it out, attach the pressure-sensitive adhesive layer to the surface of the adhesive tape prepared in Example 1.

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Abstract

The invention provides a double-sided adhesive tape. The adhesive tape is characterized in that: the adhesive tape comprises a substrate layer, a first adhesion element layer and a second adhesion element layer. The substrate layer can be stretched and can provide the adhesive tape with enough stress forces, such that continuous integrity of the double-sided adhesive tape can be maintained when the adhesive tape is stretched and stripped. The first adhesion element layer has certain stretchability and adhesiveness, and is positioned on one side of the substrate layer for providing adhesive forces between the adhesive tape and a first material requiring adhesion. The second adhesion element layer has certain stretchability and adhesiveness, and is positioned on the other side of the substrate layer for providing adhesive forces between the adhesive tape and a second material requiring adhesion.

Description

technical field [0001] The present invention relates to an adhesive tape, more specifically, to a double-sided adhesive tape. Background technique [0002] Double-sided adhesive tapes are widely used in daily life and industrial production, such as bonding between various metal, glass or plastic plates. However, the double-sided adhesive tape in the prior art is often difficult to completely remove from the bonded two-layer board, and a large stress needs to be applied to the board during removal, which may cause large deformation and damage to the board , At the same time, there will be adhesive residue between the plates, which will pollute the plates. [0003] Therefore, there is still a need to develop a double-sided adhesive tape that can be completely removed from the bonded double-layer sheets, which can be stretched at a low angle so as to be completely removed from between the There is no or only a small amount of adhesive remaining between the layers of boards, a...

Claims

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Application Information

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IPC IPC(8): C09J7/02
Inventor 彭庆瑞于慧张文美刘新朝潘祺晟华佳明
Owner 3M INNOVATIVE PROPERTIES CO
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