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Pressure-bonding pressure-sensitive adhesive member

A bonding member and bonding type technology, which is applied in the field of pressure bonding bonding members with strong bonding, can solve problems such as not easy bonding, and achieve the effect of excellent position adjustment function

Inactive Publication Date: 2019-01-04
NITTO DENKO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, such a pressure bonding type adhesive member is not easy to adhere with a sufficiently high adhesive force to an adherend made of a low-polarity plastic typified by polypropylene.

Method used

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  • Pressure-bonding pressure-sensitive adhesive member
  • Pressure-bonding pressure-sensitive adhesive member
  • Pressure-bonding pressure-sensitive adhesive member

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0150] 1. Fabrication of Core-Shell Copolymer Particles

[0151] (Preparation of Monomer Emulsion (A))

[0152] 2-Ethylhexyl acrylate (2-EHA) (950 parts by weight), acrylic acid (AA) (50 parts by weight), polyoxyethylene alkyl ether sodium sulfate-based anionic non-reactive surface Active agent LATEMUL E-118B (manufactured by Kao Corporation) (15 parts by weight), and ion-exchanged water (970 parts by weight), and using a homomixer (manufactured by Tokushu Kika Kogyo Co., Ltd.) under nitrogen atmosphere The mixture was stirred at 6000 rpm for 5 minutes to obtain a monomer emulsion (A).

[0153] (Preparation of Monomer Emulsion (B))

[0154] Methyl methacrylate (MMA) (950 parts by weight), acrylic acid (AA) (50 parts by weight), LATEMUL E-118B (manufactured by Kao Corporation) (15 parts by weight), and ion-exchanged water ( 970 parts by weight), and the mixture was stirred at 6000 rpm for 5 minutes under a nitrogen atmosphere using a homomixer (manufactured by Tokushu Kika Kog...

Embodiment 2-5

[0163] A pressure bonding type adhesive member was prepared in the same manner as in Example 1 except that the tackifier was changed to those described in Table 1.

Embodiment 6

[0165] Except in the manufacture of core-shell type copolymer particles, anionic reactive surfactant ELEMINOL JS-20 (manufactured by Sanyo Chemical Industries, Ltd.) of alkyl allyl sulfosuccinic acid sodium salt system was used instead of polyoxygen A pressure bonding type adhesive member was prepared in the same manner as in Example 1 except for the vinyl alkyl ether sodium sulfate-based anionic non-reactive surfactant LATEMUL E-118B. The weight average molecular weight of core-shell copolymer particles is 8.0×10 5 , the average particle size (D50) is 0.12 μm.

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Abstract

Provided is a pressure-bonding pressure-sensitive adhesive member, the surface of which has an excellent position adjusting function with respect to an adherend composed primarily of a low-polarity plastic as represented by polypropylene, and which is able to adhere to the adherend with sufficiently high adhesive power after position adjustment. A pressure-bonding pressure-sensitive adhesive member 1 has a pressure-sensitive adhesive agent layer 11 and a plurality of ridges 12 disposed on one side of the pressure-sensitive adhesive layer 11, and is characterized in that in a state where said ridges 12 are in contact with a polypropylene plate while the pressure-sensitive agent layer 11 is not in contact with the polypropylene plate, the pressure-sensitive adhesive member 1 has a frictionalforce of 0.6 N / cm2 or less with respect to said polypropylene plate and a shear bond strength of at least 50 N / cm2 with respect to the polypropylene plate.

Description

technical field [0001] The present invention relates to a pressure bonding type adhesive member, in particular, a pressure bonding that simultaneously realizes an excellent position adjustment function and strong adhesion after position adjustment with respect to an adherend containing a low-polarity plastic such as polypropylene as a main component Type adhesive components. Background technique [0002] Conventionally, pressure bonding type adhesive members are known (for example, Patent Documents 1 to 3, etc.). This pressure bonding type adhesive member is provided with non-adhesive (non-adhesive) or micro-adhesive (slightly adhesive) (hereinafter, "non-adhesive" and " Slightly adhesive" is collectively referred to as "low-adhesive (low-adhesive)") the adhesive member of the protrusion. When the adhesive member is placed on the surface of the adherend without pressurization, the low-adhesive convex portion abuts to the surface of the adherend, and the adhesive layer hard...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/38B32B27/00C09J11/06C09J11/08C09J201/00C09J7/29
CPCB32B27/00C09J7/38C09J2433/00C09J2301/206C09J7/20C09J11/06C09J11/08C09J2301/302C09J2301/312C09J7/29C09J2301/41C09J2301/414C09J2423/106C09J2433/006C09J2301/412Y10T428/28C09J7/385
Inventor 千叶瑞穗下北启辅土井麻美高桥亚纪子大竹宏尚小坂尚史谷贤辅
Owner NITTO DENKO CORP