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Adhesive sheet laminate, shaped adhesive sheet laminate, and method for producing same

A technology of adhesive sheets and laminates, applied in the direction of film/sheet adhesives, non-polymer adhesive additives, non-polymer organic compound adhesives, etc., which can solve the problem of low concealment and high printing part Increased height and other issues, to achieve the effect of easy operation and suppression of unevenness

Pending Publication Date: 2021-09-28
MITSUBISHI CHEM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the concealed portion is formed in a color other than black, the concealment property is low, so the height of the concealed portion, that is, the printed portion tends to be higher than that of black

Method used

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  • Adhesive sheet laminate, shaped adhesive sheet laminate, and method for producing same
  • Adhesive sheet laminate, shaped adhesive sheet laminate, and method for producing same
  • Adhesive sheet laminate, shaped adhesive sheet laminate, and method for producing same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-1

[0389] (Production of double-sided adhesive sheets)

[0390] 1 kg of acrylic copolymer (1-a-1) (weight average molecular weight: 230,000) as (meth)acrylic copolymer (1-a), glycerol dimethyl Acrylate (manufactured by NOF Corporation, product name: GMR) (1-b-1) 90 g, and 2,4,6-trimethylbenzophenone as a photopolymerization initiator (1-c) and 4 - 15 g of a mixture of methylbenzophenone (manufactured by Lanberti, product name: Esacure TZT) (1-c-1) was uniformly mixed, and the acrylic copolymer (1-a-1) had a number average molecular weight of 2400 Polymethyl methacrylate macromonomer (Tg: 105°C) 15 parts by mass (18mol%) and butyl acrylate (Tg: -55°C) 81 parts by mass (75mol%) and acrylic acid (Tg: 106°C) 4 Parts by mass (7mol%) were randomly copolymerized to prepare the resin composition 1-1 for the adhesive material layer. The glass transition temperature of the obtained resin composition was -5 degreeC.

[0391] The obtained resin composition 1-1 was sandwiched between a PET...

Embodiment 1-2

[0395] Except having used the cover part 1-B instead of the said cover part 1-A, it carried out similarly to Example 1-1, and produced the adhesive sheet laminated body 1-2 and the shaped adhesive sheet laminated body 1-2.

Embodiment 1-3

[0397] Except having used the covering part 1-C instead of the said covering part 1-A, it carried out similarly to Example 1-1, and produced the adhesive sheet laminated body 1-3 and the shaped adhesive sheet laminated body 1-3.

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Abstract

The invention provides an adhesive sheet laminate, a shaped adhesive sheet laminate, and a method for producing the same. The present invention provides an adhesive sheet laminate, which is characterized in that as a new adhesive sheet laminate capable of forming, on the surface of an adhesive material layer with high precision, a concave-convex shape conforming to a concave-convex portion on the surface of an adherend, the laminate is provided with an adhesive material layer and a covering portion I which is laminated on one surface of the adhesive material layer in a peelable manner, in the adhesive sheet laminate, the storage modulus E '(MA) of the covering portion I at 100 DEG C is 1.0 * 106 to 2.0 * 109 Pa, and the storage modulus E' (MB) of the covering portion I at 30 DEG C is 5.0 * 107 to 1.0 * 1010 Pa.

Description

[0001] This application is a divisional application of an application with a filing date of September 6, 2017, an application number of 201780056747.0, and an invention title of "adhesive sheet laminate, shape-shaped adhesive sheet laminate and manufacturing method thereof". technical field [0002] The present invention relates to a laminate of shaped adhesive sheets that can be suitably used for forming image display devices such as personal computers, mobile terminals (PDAs), game machines, televisions (TVs), car navigation systems, touch panels, and writing tablets. body, and an adhesive sheet laminate suitable for forming a shaped adhesive sheet laminate. Background technique [0003] A touch panel-type image display device is generally configured by combining a surface protection panel, a touch panel, and an image display panel (collectively referred to as "components for image display device"). [0004] In recent years, plastic materials such as acrylic resin sheets a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/10C09J7/30C09J4/02C09J4/06
CPCC09J7/30C09J7/10C09J4/06C09J2467/005C09J2423/005C09J2423/105C09J2203/326C09J7/00C09J11/06C09J133/00C09J7/241C09J7/255C09J7/20C09J7/21
Inventor 佐藤记央稻永诚铃木加苗村中达也
Owner MITSUBISHI CHEM CORP