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Active energy ray-curable resin composition and cured article thereof

A curable composition, active energy ray technology, applied in the direction of coating, can solve the problems of low curing shrinkage, poor abrasion resistance/impact resistance, large curing shrinkage, etc., to achieve low warpage, high adhesion performance, excellent wear resistance

Active Publication Date: 2015-09-23
TAIYO INK MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] When curable resins formed using monofunctional (meth)acrylates or difunctional (meth)acrylates are cured, low curing shrinkage is easily obtained, but generally poor abrasion resistance / impact resistance
(Meth)acrylates with more than three functions are good for improving wear resistance and impact resistance, but they have large curing shrinkage, which may cause large warping of cured molded products

Method used

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  • Active energy ray-curable resin composition and cured article thereof
  • Active energy ray-curable resin composition and cured article thereof
  • Active energy ray-curable resin composition and cured article thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～7 and comparative example 1～6

[0091] (Preparation of Active Energy Ray Curable Resin Composition)

[0092] The components shown in Table 1 and Table 2 were mixed with the resin produced as described above, stirred and dissolved at 80° C., and an active energy ray-curable resin composition was prepared.

[0093] Table 1

[0094]

[0095] In addition, the components of Table 1 are as follows.

[0096] EBECRYL 8807: Aliphatic bifunctional urethane acrylate (manufactured by Daicel-Cytec Company Ltd.)

[0097] KAYARAD RM-1001: N-acryloylmorpholine (manufactured by Nippon Kayaku Co., Ltd.)

[0098] LIGHTACRYLATE IB-XA: Isobornyl acrylate (manufactured by KYOEISHA CHEMICAL Co., LTD.)

[0099] ARONIX M-5700: 2-Hydroxy-3-phenoxypropyl acrylate (manufactured by TOAGOSEI CO., LTD.)

[0100] NK Ester A-DCP: tricyclodecane dimethanol diacrylate (manufactured by Shin-Nakamura Chemical Co., Ltd.)

[0101] CD406: Cyclohexanedimethanol diacrylate (manufactured by Sartomer Corporation)

[0102] Neoma BA-641: Ethyle...

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Abstract

The present invention provides an active energy ray-curable resin composition that exhibits high close-adhesiveness and excellent wear resistance even under high temperature and high humidity without virtually any warping when cured by ultraviolet rays, electron beam, or other active energy ray, and that has secondary processability such as excellent molding after curing. This active energy ray-curable composition is characterized by containing: a urethane resin having a plurality of acrylate groups or methacrylate groups; at least one amide or amide derivative selected from those having an ethylenic double bond; at least one bifunctional acrylate or bifunctional methacrylate selected from those having a cyclic skeleton containing no carbon-carbon double bond; a photopolymerization initiator; and a polymer containing no ethylenic double bond. This active energy ray-curable composition is characterized if furthermore characterized in that the polymer containing no ethylenic double bond dissolves in at least one amide or amide derivative selected from those having an ethylenic double bond.

Description

technical field [0001] The present invention relates to an active energy ray-curable resin composition that can be used in applications such as mobile phone buttons that require low warpage, adhesiveness under high temperature and high humidity, and abrasion resistance. Background technique [0002] In recent years, active energy ray-curable resins cured by active energy rays such as ultraviolet rays and electron beams have been used in various applications. For example, properties such as transparency and low curing shrinkage are generally required mainly for active energy ray-curable resins used in buttons of mobile phones and the like. Recently, with the high functionality of these mobile phones and the like, high reliability that does not cause defects even under high temperature and high humidity is required. [0003] In addition, in addition to the above-mentioned properties, abrasion resistance, impact resistance, etc. are required when used for the outermost decorat...

Claims

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Application Information

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IPC IPC(8): C08F290/06
CPCC09D151/08C08F290/067
Inventor 槙田昇平舟越千弘峰岸昌司
Owner TAIYO INK MFG
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