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Pressure-sensitive adhesive composition, pressure-sensitive adhesive, and adhesive sheet using same

A technology of adhesives and compositions, applied in the direction of non-polymer adhesive additives, adhesive additives, film/sheet adhesives, etc., can solve the problems of unsuitable electronic components for fixed purposes, and achieve excellent cohesion , the effect of strong adhesion

Active Publication Date: 2013-08-14
MITSUBISHI CHEM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, these strongly adhesive adhesives corrode the adherend due to the introduced acidic functional groups or generate outgassing (outgas) from the acidic functional groups, so they are suitable for use on electronic components, especially precision electronic components. It is not suitable for information label purposes and electronic component fixing purposes

Method used

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  • Pressure-sensitive adhesive composition, pressure-sensitive adhesive, and adhesive sheet using same
  • Pressure-sensitive adhesive composition, pressure-sensitive adhesive, and adhesive sheet using same
  • Pressure-sensitive adhesive composition, pressure-sensitive adhesive, and adhesive sheet using same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0144] 12 parts of acrylic resin (A-1) as acrylic resin (A), 18 parts of 4-hydroxybutyl acrylate (HBA: (B2)) as monofunctional unsaturated compound (B), 20 parts Cyclohexyl acrylate (CHA: (B1)), 50 parts of 2-ethylhexyl acrylate (2EHA: (B3)), 0.3 part of trimethylolpropane triacrylic acid as polyfunctional unsaturated compound (C) The ester (TMPTA) was added to a vessel with a stirrer and stirred and mixed for 24 hours to dissolve. By mixing 1 part of 2-hydroxy-2-methyl-1-phenyl-propan-1-one (trade name: "Darocur1173"; manufactured by Ciba Specialty Chemicals Inc. )(HMPP) to obtain an adhesive composition.

[0145] The pressure-sensitive adhesive composition obtained above was coated on a polyethylene terephthalate (PET) substrate having a thickness of 100 μm so as to have a thickness of 130 μm. Furthermore, using the PET substrate subjected to the mold release treatment, the coating surface was covered so that the mold release treatment surface came into contact with the co...

Embodiment 2～8

[0151]In Example 1, the compounding ratios of 4-hydroxybutyl acrylate (HBA), cyclohexyl acrylate (CHA) and 2-ethylhexyl acrylate (2EHA) were changed as shown in Table 1 below, Except that, it carried out similarly to Example 1, and obtained the adhesive composition and the adhesive sheet.

Embodiment 9

[0153] In Example 1, the acrylic resin (A-2) was used instead of the acrylic resin (A-1), and the compounding ratio of other components was changed as shown in the following Table 2, except that it was the same as in Example 1. Operation, obtain adhesive composition and adhesive sheet.

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Abstract

Provided is a pressure-sensitive adhesive having a high adhesive strength and a high cohesive strength, which is cured by active energy ray irradiation. The present invention relates to a pressure-sensitive adhesive composition comprising: an acrylic resin (A); an ethylenically unsaturated compound containing one ethylenically unsaturated group (B); an ethylenically unsaturated compound containing two or more ethylenically unsaturated groups (C); and a photoinitiator (D). The pressure-sensitive adhesive composition is characterized by comprising an ethylenically unsaturated compound containing an alicyclic structure (B1) and a hydroxyl group-containing ethylenically unsaturated compound (B2) as the ethylenically unsaturated compound containing one ethylenically unsaturated group (B).

Description

technical field [0001] The present invention relates to an adhesive composition, an adhesive, and an adhesive sheet using the same. Specifically, it relates to an adhesive having high adhesive force and high cohesive force, which is particularly suitable for use in applications requiring corrosion resistance. An electronic member, an adhesive of an optical member, and an adhesive sheet using the same. Background technique [0002] There are various types of adhesives, such as strong-adhesive adhesives for the purpose of firmly sticking adherends for a long time, and release-type adhesives based on the premise of peeling off from adherends after adhesion. Design and use the best adhesive respectively. [0003] For example, with regard to adhesives of the type exhibiting strong adhesiveness, high adhesiveness is generally imparted by introducing a large amount of acidic functional groups into the adhesive, or by using a large amount of tackifying resin, in various fields requ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J4/02C09J7/02C09J133/00
CPCC09J4/00C09J133/00C09J133/066C09J7/00C08F2220/1825C08F2220/1858C08F2222/1013C09J11/06C08F222/102C08F220/1808C08F220/1804C08F220/1811C08F220/20C08F220/44C09J7/385C09J7/22C09J7/30C09J4/06C09J2301/30C09J2203/00
Inventor 神田幸宗
Owner MITSUBISHI CHEM CORP
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