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Antifogging coating composition, antifogging coating film, and antifogging article

An anti-fog coating and composition technology, applied in the field of anti-fog coating composition, anti-fog coating film and anti-fog articles, can solve problems such as reduction of irradiated light intensity, safety problem, aesthetic problem, etc. The amount of light, the effect of preventing diffuse reflection

Pending Publication Date: 2022-08-05
NEOS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of lighting device may cause fog on the inner side (light source side) of the transparent member, which may reduce the intensity of the irradiated light and cause safety problems
In addition, the amount of light irradiated through the transparent member that has been fogged is small, which may also cause problems in terms of appearance.

Method used

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  • Antifogging coating composition, antifogging coating film, and antifogging article
  • Antifogging coating composition, antifogging coating film, and antifogging article
  • Antifogging coating composition, antifogging coating film, and antifogging article

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～2 and comparative example 1～2

[0151]Examples 1 to 2 and Comparative Examples 1 to 2 are experimental examples in which the types and compounding amounts of the silane derivative compounds were changed. The anti-fogging coating films of Examples 1 to 2 in which the silane derivative compound having a polyethylene glycol chain in the molecule and the silane derivative compound having an epoxy group in the molecule were used in combination were excellent in coating properties, anti-fogging properties, and adhesion. Good results were shown in all aspects of the properties, and after the moist heat resistance test and the heat resistance test, good results were also shown in the anti-fogging property and the adhesiveness. Comparative Example 1 did not prepare a silane derivative compound having an epoxy group in the molecule. The antifogging coating film of Comparative Example 1 showed a decrease in adhesiveness after the moist heat resistance test. In Comparative Example 2, a silane derivative compound not be...

Embodiment 1～2 and comparative example 3～5

[0153] Examples 1 to 2 and Comparative Examples 3 to 5 are experimental examples in which the amount of diacetone alcohol as the organic solvent was changed. Regarding the antifogging coating film formed from the antifogging coating composition of Comparative Example 3 in which diacetone alcohol was not formulated, it was found that the adhesiveness after the heat-and-moisture resistance test decreased. Regarding the anti-fogging coating film of Comparative Example 4 in which 0.86% by weight of diacetone alcohol was added to the anti-fog coating composition, it was found that the adhesion after the heat and humidity resistance test decreased. The antifogging coating film of Comparative Example 5 of alcohol was inferior in coatability.

Embodiment 3～8

[0155] Examples 3 to 8 are experimental examples in which the type and compounding amount of the silane derivative compound were changed. In all of Examples 3 to 8, a silane derivative compound having a polyethylene glycol chain in the molecule and a silane derivative compound having an epoxy group in the molecule were used in combination. The anti-fogging coating films of Examples 3 to 8 showed good results in all aspects of coating properties, anti-fogging properties, and adhesive properties, and also showed good results in anti-fogging properties and adhesive properties after the water resistance test. The antifogging property and adhesiveness after the thermal test also showed favorable results. Even if a silane derivative compound (acetylsilane) having a polyethylene glycol chain and an acyl group in the molecule is used as the silane derivative compound having a polyethylene glycol chain in the molecule (Example 4), a polyethylene glycol having a Silane derivative compo...

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PUM

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Abstract

The purpose of the present invention is to provide an antifogging coating composition capable of forming an antifogging coating film which does not cause any change in appearance such as water marks, is firmly adhered to the surfaces of a plurality of types of substrates including a plastic substrate, and exhibits an antifogging effect over a long period of time. The invention provides an antifogging coating composition. The antifogging coating composition comprises strip-shaped colloidal silicon oxide; and a silane derivative compound mixture containing at least a silane derivative compound having a polyethylene glycol chain in the molecule and a silane derivative compound having an epoxy group in the molecule.

Description

technical field [0001] The present invention relates to an anti-fogging coating composition, an anti-fogging coating film and anti-fogging articles produced by using the same. Background technique [0002] A lighting device such as a headlamp of an automobile mainly includes a light source and a transparent member formed of glass, plastic, or the like arranged in front of the light source. In addition, the light emitted from the light source is transmitted through the transparent member and irradiated to the outside and peripheral portion of the lighting device. Such a lighting device may generate fog on the inner side (light source side) of the transparent member, which may reduce the intensity of the irradiated light and cause a safety problem. In addition, the amount of light irradiated through the fogged transparent member is small, which may also be a problem in terms of appearance. [0003] Japanese Patent Laid-Open No. 2016-169287 proposes an antifogging agent compo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D1/00C09D7/20C09D7/61C09D7/63B32B7/023
CPCC09D7/61C09D7/63C09D1/00C09D7/70C08K3/36C08K5/5419C09K3/18
Inventor 竹井工贵重松遥西井健太郎小野真司内贵英人
Owner NEOS CO LTD
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