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Adhesive sheet

A technology of adhesive sheet and adhesive layer, applied in the direction of adhesive, adhesive type, film/sheet release liner, etc., which can solve the problem of worrying about the effect of adhesive on the skin

Pending Publication Date: 2020-04-21
TERAOKA SEISAKUSHO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, although these inventions can prevent sticking and improve operating efficiency without using a release liner, they are concerned about the effect of the adhesive on the skin
In particular, epoxy-based adhesives and acrylic adhesives are known to cause skin diseases (Non-Patent Document 1), and although the adhesive layer contains fine particles such as inorganic fillers, such skin diseases cannot be avoided.

Method used

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  • Adhesive sheet
  • Adhesive sheet
  • Adhesive sheet

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～10

[0118] The expansive adhesive of Compound 1 was coated on both sides of a substrate (PPS resin, manufactured by Toray, TORELINA (registered trademark) #100-3030, 75 μm) so that the thickness after drying was 50 μm each, and then heated at 90 The solvent was removed by drying at 5°C for 5 minutes to form an expandable adhesive layer. On the surface of the expandable adhesive layer, each protective layer having the composition and thickness described in Tables 2 and 3 was formed to obtain the adhesive sheets of Examples 1 to 10.

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PUM

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Abstract

Disclosed is an adhesive sheet comprising a substrate 1 and an adhesive layer 2 disposed on at least a portion of one surface or both surfaces of the substrate 1, the adhesive sheet being characterized by having a protective layer 3 disposed on at least a portion of the surface of the adhesive layer 2. The adhesive layer 2 is preferably an expanding adhesive layer, and the protective layer 3 is preferably a hot-melt protective layer. The protective layer 3 may contain a functional component such as an antistatic agent, a coloring agent, a hard coat agent, a lubricant, a heat dissipating material, a metal deactivator, or an antioxidant. This adhesive sheet enables an adhesive surface thereof to be protected without using a peel-off liner, does not cause blocking or skin disorders, and has avariety of excellent features.

Description

technical field [0001] The present invention relates to an adhesive sheet having a protective layer on the surface of an adhesive layer. Background technique [0002] Adhesive sheets are used to fix parts and components in various fields such as electrical and electronic fields, automobile-related fields, and civil engineering and construction fields. The adhesive sheet is provided with an epoxy-based, acrylic-based, or other adhesive layer having high adhesiveness in order to achieve strong adhesion to an adherend. [0003] Regarding the adhesive sheet before use, it is necessary to protect the surface (adhesive surface) of the adhesive layer from foreign matter, dust, wounds, deterioration, etc. in order to prevent a decrease in adhesive strength. In addition, in order to prevent accidental adhesion to a position other than the target (so-called blocking) and contamination of the operator's hands, protection of the adhesion surface can be said to be essential. [0004] P...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/25C09J7/30C09J163/00C09J11/04
CPCB32B27/00C09J7/401C09J7/30C09J2463/00C09J2400/24C09J163/00C09J2301/312
Inventor 雷鸣荻野升平大石一喜佐佐木惠龙
Owner TERAOKA SEISAKUSHO