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Hard coating composition having antifouling performance

A technology of hard coating and composition, applied in the direction of anti-fouling/underwater coating, coating, etc., which can solve problems such as insufficient, difficult to wipe off, hard to notice fingerprints, etc.

Active Publication Date: 2013-10-23
SHIN ETSU CHEM IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the high affinity with contamination components, they accumulate gradually and are difficult to wipe off, so the light transmittance of displays etc. may decrease
[0012] In addition, Patent No. 4873666: Patent Document 5 describes an acrylate compound having a perfluoropolyether group. When this compound is added alone, the fingerprint erasability is greatly improved, but the fingerprint is difficult to be seen. sexual inadequacy

Method used

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  • Hard coating composition having antifouling performance
  • Hard coating composition having antifouling performance
  • Hard coating composition having antifouling performance

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～4

[0213] [Examples 1 to 4, Comparative Example 1]

[0214] Preparation of antifouling agent

[0215] In a 10 ml glass sample bottle, 2.0 g of any of the following antifouling additives (B) and (C) components and 8.0 g of methyl isobutyl ketone (MIBK) were weighed, sealed with a stopper, and shaken for 30 minutes. After confirming that the antifouling additive is completely dissolved, filter it through a PTFE (polytetrafluoroethylene) membrane filter with a pore size of 0.45 μm, and prepare an antifouling agent containing 20% ​​by mass of component (B) or component (C) as an antifouling imparting component. sex conferring agent.

[0216] (B) Antifouling additives for ingredients

[0217] B-1

[0218] [chemical formula 29]

[0219]

[0220] B-2

[0221] [chemical formula 30]

[0222]

[0223] B-3

[0224] [chemical formula 31]

[0225]

[0226] (C) Antifouling additives of ingredients

[0227] C-1

[0228] [chemical formula 32]

[0229]

[0230] Rf': -CF ...

Embodiment 5、6、 comparative example 2～4

[0265] In the same manner as in Example 1 above, a hard coat composition was prepared according to the formulations in Table 3 below.

[0266] [table 3]

[0267]

[0268] The hard coat coating material was prepared in the same manner as in Example 1 above, and the physical properties were measured in the same manner. As a result, the results in Table 4 below were obtained.

[0269] [Table 4]

[0270]

[0271] Synthesis examples of components B-1 to B-3 are shown below.

Synthetic example 1

[0273] Modulation of B-1 Components

[0274] Fill the flask with reflux cooling tube and thermometer into the following formula (I)

[0275] [chemical formula 34]

[0276]

[0277] 43.1 g (0.050 mol) of fluorine-containing hydrosiloxane, 21.1 g of toluene, and 0.04 g of platinum / vinylsiloxane complex toluene solution (0.2 mg as platinum) are shown. After heating the internal temperature to 60°C, 44.9 g (0.20 mol) of 1-hexadecene was added dropwise using a dropping funnel with the dropping speed adjusted so that the internal temperature would not exceed 70°C. After heating at 60 to 70° C. for 1 hour, the dropping rate was adjusted so that the internal temperature would not become 70° C. or higher, and 17.2 g (0.20 mol) of 4-pentenol was added dropwise. After confirming that the absorption from the SiH group of the fluorine-containing hydrosiloxane (I) disappeared by IR spectrum measurement, hexafluoro-m-xylene and excess cyclotetrasiloxane were distilled off under reduce...

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Abstract

The invention provides a hard coating composition having antifouling performance for a hard coating surface. The fingerprints, sebum, human grease such as sweat, and cosmetics are difficult to be obvious even when attached to the hard coating surface. And the dirt has excellent erasure performance even when attached to the hard coating surface. The hard coating composition having antifouling performance comprises following components used as main ingredients: (A) hard coating material, (B) fluorinated acrylate compound, (C) acrylate compound containing perfluoropolyether.

Description

technical field [0001] The present invention relates to a hard coat material imparted with antifouling properties. More specifically, it relates to the addition of an antifouling property imparting agent having a fluorine-containing organic group, a hydrocarbon group, and a (meth)acryloyl group in the same molecule. An antifouling-imparting hard coat composition having an antifouling-imparting agent of a perfluoropolyether group and a (meth)acryloyl group inside. Background technique [0002] Resin materials are widely used in housings of electronic devices such as various electrical products, personal computers, and mobile phones because they are less rusty and lighter than metals. In addition, even compared with glass, it has characteristics such as being difficult to crack, and resins such as acrylic resins and polycarbonate resins have properties such as high hardness and high transparency. They have been used as monomers or hard coat materials for liquid crystal display...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D4/02
CPCC09D4/00C09D5/16
Inventor 佐藤伸一坂野安则
Owner SHIN ETSU CHEM IND CO LTD
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