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Adhesive sheet for marking

An adhesive sheet and marking technology, applied in the direction of adhesive types, polyurea/polyurethane adhesives, film/flake adhesives, etc. Sexual problems, etc.

Inactive Publication Date: 2009-08-26
LINTEC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Weather resistance is required for marking adhesive sheets for outdoor use, but polyester films and polyolefin films, for example, have poor weather resistance, and cracks and whitening of the substrate are prone to occur, while in the case of colored substrates It is also prone to color deterioration, etc.
[0007] However, as for automotive marking adhesive sheets, in addition to weather resistance, the base material is also required to have glossiness, scratch resistance, chemical immersion resistance (gasoline immersion resistance), etc., but polyester-based base material, etc., it is difficult to meet these requirements at the same time

Method used

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  • Adhesive sheet for marking
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0127] As the non-vinyl chloride resin base material, a polyester thermoplastic elastomer film [manufactured by Kurabo Industries, Ltd., trade name "ES-9470BK"] with a thickness of 100 μm was used. On the release-treated surface of a release sheet [manufactured by Oji Paper Co., trade name "SP-12HL Kai"] with a thickness of 170 μm that has been subjected to release treatment on polyethylene-laminated paper with a silicone-based release agent, apply An acrylic adhesive [manufactured by Lintec, trade name "SK", containing an epoxy compound crosslinking agent] was dried to form an adhesive layer with a thickness of 30 μm.

[0128] On one side surface of the above-mentioned polyester thermoplastic elastomer film, a release sheet with the above-mentioned adhesive layer is pasted. The mixture layer is transferred to the surface.

[0129] In addition, polyester-modified acrylic polyol resin [manufactured by Asia Industry Co., Ltd., trade name "EEX-19", resin Tg = 47°C, Mw = 68,000, ...

Embodiment 2

[0133] In Example 1, as the polyester-modified acrylic polyol resin, [manufactured by Asia Industry Co., Ltd., trade name "NX62-1", resin Tg = 47°C, Mw = 38,000, solvent toluene, at 25°C The viscosity is 3000mPa·s, the solid content concentration is 54.9% by mass] 100 parts by mass, and the amount of the curing agent "#8000" (same as above) is changed to 15 parts by mass, and the same as in Example 1 According to the operation, a coating solution having a solid content concentration of 29% by mass was prepared, and an adhesive sheet for marking was produced.

[0134] Table 1 shows the performance evaluation results of the pressure-sensitive adhesive sheet for marking.

Embodiment 3

[0136] In Example 2, a matting agent [manufactured by Asia Industry Co., Ltd., trade name "Matting Agent M", a polycarbonate resin with an average particle diameter of 3.5 μm, a dispersion medium of xylene / cyclohexanone, and a solid content of Concentration: 7% by mass] 10 parts by mass, and the same operation as in Example 2 was carried out to prepare a coating liquid having a solid content concentration of 28% by mass, and further produce an adhesive sheet for marking.

[0137] Table 1 shows the performance evaluation results of the pressure-sensitive adhesive sheet for marking.

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Abstract

Disclosed is an adhesive sheet for marking, which comprises an adhesive layer on one surface of a non-vinyl-chloride-based resin base material and a crosslinked acryl urethane coating layer on the other surface of the base material, wherein the crosslinked acryl urethane coating layer comprises (A) a polyester-modified acryl polyol resin having a weight average molecular weight of 15,000 to 80,000 and (B) a polyisocyanate compound as a curing agent.The adhesive sheet has a non-vinyl-chloride-based resin base material as a base material and meets the environmental requirements. The adhesive sheet has scratch resistance, chemical immersion resistance, cracking resistance upon stretching, weather resistance and a desired degree of brilliance, and therefore can be suitably used for an automobile.

Description

technical field [0001] The present invention relates to an adhesive sheet for marking, and more particularly, to an environment-adaptive adhesive sheet made of a non-vinyl chloride-based resin substrate as a base material, and this adhesive sheet has scratch resistance properties, resistance to chemical immersion, crack resistance when stretched, weather resistance, and desired glossiness, suitable for marking adhesive sheets such as automobiles. Background technique [0002] In recent years, pressure-sensitive adhesive sheets (including adhesive tapes; the same applies hereinafter) have been widely used in various fields. For example, it can be used for packaging and bundling, office and home use, adhesion, coating masking, surface protection, sealing, anti-corrosion and waterproof, electrical insulation, electronic equipment, medical and hygienic materials, Used for display and signage, decoration, labels, etc. [0003] On the other hand, recently, among the above-mentio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/02B32B27/00C09J201/00C09J7/29
CPCC09J2201/162C09J2475/006C09J7/0296C09J7/29Y10T428/25Y10T428/2848Y10T428/265C09J2301/162C09J2301/122C09J175/04
Inventor 富能忠宽
Owner LINTEC CORP
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