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Hardcoat agent and layered film

A hard coating agent and compound technology, applied in the field of laminated films, can solve unrecorded problems and achieve the effects of small surface free energy, high-efficiency pencil hardness, and excellent static bendability

Active Publication Date: 2020-02-21
LINTEC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0017] However, this document does not describe the evaluation results of the bending resistance (static bending property, dynamic bending property) of the obtained cured film.

Method used

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  • Hardcoat agent and layered film
  • Hardcoat agent and layered film
  • Hardcoat agent and layered film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0327] A mixture of 100 parts by mass of an acrylate compound (1A) and 5 parts by mass of a photopolymerization initiator (manufactured by BASF Europe, trade name: IRGACURE184, concentration: 100% by mass) was diluted with methyl ethyl ketone to prepare a solid content Hard coating agent (1) whose concentration is 50% by mass.

[0328] A polyethylene terephthalate film (manufactured by Toyobo Co., Ltd., trade name: PET50A4100, thickness 50) with a primer layer on one side using a Meyer rod #10 mu m) Coating hard coating agent (1) on the surface of the undercoating layer, make the film thickness after curing reach 5 mu m, dried at 80 °C for 1 min. After that, irradiate with ultraviolet rays (light intensity: 170mJ / cm 2 ) to cure the coating film to form a hard coat layer to obtain a laminated film (1).

Embodiment 2

[0330] Except having used the acrylate compound (1B) instead of using the acrylate compound (1A), it carried out similarly to Example 1, and prepared the hard-coat agent (2).

[0331] Moreover, except having used the hard-coat agent (2) instead of using the hard-coat agent (1), it carried out similarly to Example 1, and obtained the laminated|multilayer film (2).

Embodiment 3

[0333] Except having used the acrylate compound (2A) instead of using the acrylate compound (1A), it carried out similarly to Example 1, and prepared the hard-coat agent (3).

[0334] Moreover, except having used the hard-coat agent (3) instead of using the hard-coat agent (1), it carried out similarly to Example 1, and obtained the laminated|multilayer film (3).

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Abstract

The present invention relates to: a hardcoat agent containing a polyfunctional (meth)acrylate compound having a specific number of alkylene oxide bonds in the molecule; and a layered film including ahardcoat layer formed from the hardcoat agent. The present invention provides: a hardcoat agent capable of efficiently forming a hardcoat layer which has a high pencil hardness and is excellent in terms of scratch resistance and flex resistance (static flexing characteristics and dynamic flexing characteristics); and a layered film including a hardcoat layer formed from the hardcoat agent.

Description

technical field [0001] The present invention relates to a hard coat agent capable of efficiently forming a hard coat layer having high pencil hardness and scratch resistance and bending resistance (static bendability, A hard coat that is excellent in dynamic flexibility), magic resistance (magic resistance), fingerprint resistance, and sliding properties. Background technique [0002] The development of displays such as liquid crystal displays and electroluminescent (EL) displays is advancing toward thinner and lighter weight. Such flexible displays are required to be free from cracks or damage even when repeatedly bent or rolled up. In addition, display devices of various displays often have a touch (touch) panel as a data input device, so the requirement is as follows: Even if the surface of the touch panel is repeatedly touched with a pen or finger, the surface of the touch panel will not be damaged. pollute. [0003] Therefore, conventionally, a hard coat layer is form...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D4/02B32B27/30C08F290/06C09D7/62C09D7/65
CPCB32B27/30C08F290/06C09D7/62C09D7/65C09D4/00C08F220/285C08F290/068C08F2/46C08J7/046C08J7/043
Inventor 七岛祐尾干广
Owner LINTEC CORP