Anti-fogging article and method for producing same

A technology for anti-fogging and article application in the direction of chemical instruments and methods, layered products, and other chemical processes. Moisture and ionic component reach, peel resistance improvement, interfacial stress relief effects

Inactive Publication Date: 2013-07-31
ASAHI GLASS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, although the water-absorbent cross-linked resin layer in the anti-fog article described in Patent Document 1 is excellent in anti-fog properties, it has problems in terms of durability such as abrasion resistance and peeling resistance.
The anti-fog film described in Patent Document 2 has excellent anti-fog properties and has improved durability to a certain extent. However, if the durability is improved, the appearance will be impaired, which is a problem.

Method used

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  • Anti-fogging article and method for producing same
  • Anti-fogging article and method for producing same
  • Anti-fogging article and method for producing same

Examples

Experimental program
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manufacture example A-1

[0269] Diacetone alcohol (8.07 g, manufactured by Junsei Chemical Co., Ltd.), bisphenol A diglycidyl ether (5.00 g, jER828, manufactured by Mitsubishi Chemical Corporation), and polyoxyalkylene triamine were placed in a glass container equipped with a stirrer and a thermometer. (2.06 g, Jefamin T403, manufactured by Huntsman Corporation) and aminosilane (1.01 g, KBM903, manufactured by Shin-Etsu Chemical Co., Ltd.), were stirred at 25° C. for 30 minutes. Next, it diluted 7 times with diacetone alcohol (made by Junsei Chemical Co., Ltd.), and obtained the composition (A-1) for base resin layer formation.

manufacture example A-2

[0271] Except that the dilution factor of diacetone alcohol was 6 times, the composition (A-2) for base resin layer formation was obtained by the method similar to manufacture example (A-1).

manufacture example A-3

[0273] The composition (A-3) for base resin layer formation was obtained by the method similar to manufacture example (A-1) except that the dilution factor of diacetone alcohol was 5 times.

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Abstract

An anti-fogging article having a substrate and an anti-fogging film on at least part of the surface of the substrate, wherein the anti-fogging film comprises a resin underlayer and a water-absorptive resin layer laminated in order on the substrate surface, the water-absorptive resin layer is composed mainly of a first cured epoxy resin obtained by reacting a water-absorptive resin layer-forming composition containing a first polyepoxide component consisting of a low molecular weight polyepoxide having molecular weight of from 200 to 800 and a high molecular weight polyepoxide having molecular weight of from 900 to 2,000 combined in mass ratio of from 30:70 to 70:30, and a first curing agent, and the resin underlayer is composed mainly of a second cured epoxy resin obtained by reacting a resin underlayer-forming composition containing a second polyepoxide component and a second curing agent, and has water absorption property lower than the water-absorptive resin layer.

Description

technical field [0001] The present invention relates to an anti-fogging article and a method for producing the same. Background technique [0002] When the surface of transparent substrates such as glass and plastic is below the dew point temperature, fine water droplets adhere to the surface and scatter the transmitted light, so that the transparency is impaired and a so-called "fogging" state occurs. As a method for preventing fogging, various proposals have been made so far. [0003] Specifically, there are known: (1) methods of treating the substrate surface with a surfactant to reduce the surface tension of attached water droplets; (2) imparting a hydrophilic group to the substrate surface with a hydrophilic resin or a hydrophilic inorganic compound; (3) A method in which a heater is installed to heat the substrate to maintain the surface of the substrate above the dew point temperature; (4) A water-absorbent resin layer is provided on the surface of the substrate to a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/38B32B17/10C03C17/32
CPCC09K3/18C03C17/3405B32B27/20B32B27/38B32B2250/02Y10T428/266Y10T428/31515Y10T428/31518
Inventor 岸川知子石冈英树斋藤刚
Owner ASAHI GLASS CO LTD
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