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Active energy ray curable composition, cured product thereof, and article having cured coating film thereof

An active energy ray, curable composition technology, applied in coatings, polyether coatings, polyurea/polyurethane coatings, etc., can solve the problems of scratch resistance, poor pencil hardness and smoothness, and achieve excellent scratch resistance. sexual effect

Active Publication Date: 2018-07-13
DIC CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, although the cured coating film of the active energy ray-curable composition containing a fluorine compound described in Patent Document 1 has excellent antifouling properties, it has problems of poor scratch resistance, pencil hardness, and slipperiness.

Method used

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  • Active energy ray curable composition, cured product thereof, and article having cured coating film thereof
  • Active energy ray curable composition, cured product thereof, and article having cured coating film thereof
  • Active energy ray curable composition, cured product thereof, and article having cured coating film thereof

Examples

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Embodiment

[0100] The present invention will be described more specifically by way of examples below.

Synthetic example 1

[0101] (Synthesis example 1: Synthesis of urethane acrylate (A1-1))

[0102] A mixture of pentaerythritol triacrylate (hereinafter, abbreviated as "PE3A") and pentaerythritol tetraacrylate (hereinafter, abbreviated as "PE4A") was placed in a flask equipped with a stirrer, a gas introduction tube, a cooling tube, and a thermometer. (PE3A / PE4A=60 / 40 (mass ratio)) 549.1 parts by mass, 0.1 parts by mass of dibutyltin diacetate, 0.6 parts by mass of dibutyl hydroxytoluene, 0.1 parts by mass of p-methoxyphenol and 160 parts by mass of butyl acetate portion, blow in air, and slowly heat up while mixing evenly. When the temperature reached 60°C, 90.9 parts by mass of hexamethylene diisocyanate was added, and then reacted at 80°C for 5 hours to obtain 80% by mass of non-volatile components of urethane acrylate (A1-1) having 6 acryloyl groups in one molecule. solution. In addition, this solution contained 34.3 mass % of PE4A other than urethane acrylate (A1-1) in a non-volatile matter...

Synthetic example 2

[0103] (Synthesis Example 2: Synthesis of Urethane Acrylate (A1-2))

[0104] In a flask equipped with a stirrer, a gas inlet pipe, a cooling pipe, and a thermometer, 254 parts by mass of butyl acetate, 222 parts by mass of isophorone diisocyanate, 0.5 parts by mass of p-methoxyphenol and 0.5 parts by mass of dibutyltin diacetate were added. After heating up to 70° C. while blowing in air, 795 parts by mass of a mixture of PE3A and PE4A (PE3A / PE4A=75 / 25 (mass ratio)) were added dropwise over 1 hour. After the dropwise addition, react at 70°C for 3 hours, and further react until 2250 cm of the isocyanate group is represented. －1 The non-volatile matter 80 mass % solution containing the urethane acrylate (A1-2) which has 6 acryloyl groups in 1 molecule was obtained until the infrared absorption spectrum of . In addition, this solution contained 19.5 mass % of PE4A other than urethane acrylate (A1-2) in a non-volatile component.

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Abstract

The present invention provides an active energy ray curable composition, which is characterized in that it contains: an active energy ray curable compound (A), having a polycyclic siloxane structure bonded to poly(perfluorosiloxane) through a divalent linking group A fluorine compound (B) having a structure in which the (meth)acryloyl group is bonded to the above-mentioned polycyclosiloxane structure at both ends of the chain of an alkylene ether) through a divalent linking group, reactive silica (C1 ), and non-reactive silica (C2). According to the active energy ray-curable composition of the present invention, a cured coating film having high pencil hardness and excellent scratch resistance, antifouling property, and smoothness can be obtained.

Description

technical field [0001] The present invention relates to an active energy ray-curable composition capable of imparting high pencil hardness to the surface of various articles and also capable of imparting excellent scratch resistance, stain resistance, and smoothness, its cured product, and its cured coating. membrane items. Background technique [0002] Active energy ray-curable compositions are used, for example, for molding plastics that are soft and have disadvantages of easily damaging the surface due to their characteristics of less heat history to the substrate to be coated, and excellent coating film hardness and scratch resistance. A hard coating agent that imparts scratch resistance to the surface of the product. In addition, in order to impart antifouling properties to the cured coating film of the active energy ray curable composition, a fluorine compound having a perfluoropolyether group and a polymerizable group has been proposed as a material to be added to th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F290/06C09D4/02C09D7/61C09D171/02C09D175/04
CPCC08F290/06C09D171/02C09D175/04C09D4/00C08G18/673C08G18/73C08G18/792C08G18/8175C08G65/007C08K3/36C09D7/61C08F222/1065C08J7/04C08F290/068C08G2650/00C09D7/40
Inventor 高石诗织西泽茂年高桥佑辅杉浦佳美渡边大亮
Owner DIC CORPORATION
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