Application tape and protective pressure-sensitive adhesive sheet equipped with application tape

A technology of adhesive sheet and tape, applied in the direction of film/sheet-like adhesive, adhesive, adhesive type, etc., which can solve the problems of position offset, poor surface followability, and inability to peel off.

Inactive Publication Date: 2012-03-14
NITTO DENKO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The adhesive sheet for painting surface protection is directly attached to the painted surface by hand using a squeegee, etc., and there are problems such as misalignment, dirt on hands, and wrinkles when bent. In addition, there are also problems such as wrinkling of the protective adhesive sheet due to the inability of the scraper to slide on the surface of the coated surface protective adhesive sheet.
In addition, even when the adhesive sheet for protecting the painted surface is attached to the surface of the vehicle body with an application tape, there is a problem with the surface slipperiness of the conventional application tape, and there may be a disadvantage that the squeegee cannot slide smoothly. In addition, if the curved surface followability is poor, there will be a disadvantage that it is difficult to make the protective adhesive sheet follow the adherend with a curved surface. In addition, when peeling off the unnecessary application tape after bonding, There is also a disadvantage that it cannot be peeled off from the adhesive sheet for coating surface protection

Method used

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  • Application tape and protective pressure-sensitive adhesive sheet equipped with application tape

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0132] Production of application tape

[0133]As a support, a film formed of a soft polyvinyl chloride resin containing 27 parts of di-2-ethylhexyl phthalate (DOP) per 100 parts of vinyl chloride resin (degree of polymerization (P) = 1050) was obtained (70 μm thick).

[0134] One side of the obtained film is coated with a silicone resin using toluene as a solvent, and then dried at 150° C. for 1 minute to obtain 0.1 g / m 2 The backside treatment layer.

[0135] Use 100 parts of acrylic copolymer (BA / AN / AA=85 parts / 15 parts / 2.5 parts) (Mw=800000), 10 parts of butanol-modified melamine formaldehyde resin ("Super Beckamine J-820 -60N", manufactured by Japan Polyurethane Industry Co., Ltd.) and 60 parts of di-2-ethylhexyl phthalate (DOP) to make acrylic adhesive. This acrylic adhesive was dissolved in toluene to prepare an adhesive solution, and this adhesive solution was applied to one side of the support (the side to which the silicone resin was not applied) and dried at 130...

Embodiment 2

[0151] The application tape was produced in the same manner as in Example 1 except that the thickness of the support body was changed from 70 μm to 110 μm in the production process of the application tape of Example 1.

[0152] That is, as a support, a soft polyvinyl chloride resin containing 27 parts of di-2-ethylhexyl phthalate (DOP) relative to 100 parts of vinyl chloride resin (degree of polymerization (P) = 1050) was obtained. film (110 μm thick). One side of the obtained film is coated with a silicone resin using toluene as a solvent, and then dried at 150° C. for 1 minute to obtain 0.1 g / m 2 The backside treatment layer.

[0153] Next, an adhesive layer was laminated in the same manner as in Example 1. That is, 100 parts of acrylic copolymer (BA / AN / AA=85 parts / 15 parts / 2.5 parts) (Mw=800000), 10 parts of butanol-modified melamine formaldehyde resin (Super Beckamine J -820-60N, manufactured by Nippon Polyurethane Industry Co., Ltd.) and 60 parts of di-2-ethylhexyl pht...

Embodiment 3

[0157] In the preparation process of the application tape of Example 1, except having changed the adhesive layer as follows, it carried out similarly to Example 1, and produced the application tape.

[0158] That is, as a support, a soft polyvinyl chloride resin containing 27 parts of di-2-ethylhexyl phthalate (DOP) relative to 100 parts of vinyl chloride resin (degree of polymerization (P) = 1050) was obtained. film (70 μm thick).

[0159] One side of the obtained film is coated with a silicone resin solution using toluene as a solvent, and then dried at 150° C. for 1 minute to obtain 0.1 g / m 2 The backside treatment layer.

[0160] Mix 100 parts of acrylic copolymer (BA / AN / AA=85 parts / 15 parts / 2.5 parts) (Mw=800000), 2 parts by weight of toluene diisocyanate trimethylolpropane (CORONATE L, manufactured by Nippon Polyurethane Industry Co., Ltd.), 3 parts by weight of butanol-modified melamine formaldehyde resin (Super Beckamine J-820-60N, manufactured by Nippon Polyurethane...

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Abstract

The present invention relates to an application tape, which has a function of improving an application workability when a protective pressure-sensitive adhesive sheet is applied to an adherend, in which the application tape has a surface that has a coefficient of static friction for a PET film of 0.05-1.0 in the case where the PET film is slid on the application tape having a size of 30 mm 30 mm under a condition of a load of 100 g and a rate of 100 mm / min, and the application tape has a Young's modulus of 300 MPa or lower. In a preferred embodiment the base layer of the tape comprises a soft polyvinyl chloride which contains a plasticizer and the adhesive layer comprises an acrylic pressure-sensitive adhesive.

Description

technical field [0001] The present invention relates to an application tape and a protective PSA sheet having the same, and more particularly to an application tape and a protective PSA sheet having moderate surface slip properties, moderate flexibility, and moderate peel strength. Background technique [0002] For example, in the automobile and aircraft industries, a transparent pressure-sensitive adhesive sheet is sometimes attached to prevent damage to the painted surface of the automobile body or the like. The adhesive sheet for painting surface protection is directly attached to the painted surface by hand using a squeegee, etc., and there are problems such as misalignment, dirt on hands, and wrinkles when bent. In addition, there was a problem that the protective pressure-sensitive adhesive sheet was wrinkled because the squeegee could not slide on the surface of the painted surface protection pressure-sensitive adhesive sheet. In addition, even when the adhesive shee...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/02C09J133/00C09J133/08C09J7/25C09J7/22C09J7/38
CPCC08K5/0016C09J2203/306C09J2427/006C09J2433/00C09J2475/006C09J7/38C09J7/22C09J7/245C09J7/25Y10T428/2839Y10T428/2891Y10T428/28C09J2301/41
Inventor 甲斐诚中川善夫上杉正纪大泽由佳山本康德西川健一
Owner NITTO DENKO CORP
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