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Antifogging surface treatment agent and antifogging resin chip

A surface treatment agent and anti-fog technology, which is applied in the direction of synthetic resin layered products, flexible coverings, transportation and packaging, etc., can solve the problems of reduced transparency and no anti-fog properties, and achieve improved anti-fog properties , Excellent transparency and gloss, high anti-fog effect

Active Publication Date: 2013-02-27
DAICEL POLYMER LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, none of these references deal with anti-fog properties
The antistatic properties of the above sheets have been improved to a certain extent, and the transparency is reduced due to the excessive proportion of fatty amide

Method used

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  • Antifogging surface treatment agent and antifogging resin chip

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～12 and comparative example 1～5

[0106] A water-soluble surface treatment agent (anti-fogging treatment agent) containing various components was prepared in the proportions (parts by weight) shown in the table. For a biaxially oriented polystyrene sheet with a sheet thickness of 0.25 mm, use 60 dyn / cm (60×10 -5 N / cm) for corona discharge treatment, the coating amount after drying is 15mg / m 2 The above-mentioned anti-fog treatment agent is coated with a wire brush, and an anti-fog layer is formed after drying.

[0107] The properties of the obtained anti-fog resin sheet (initial properties) and the properties of the resin sheet after laminating the anti-fog resin sheet (post-pressurization properties) were evaluated according to the following methods.

[0108] (1) Initial characteristics of anti-fog resin sheet

[0109] (i) High temperature anti-fog properties

[0110]Put the resin sheet on the opening of the container with hot water at 60°C, make the anti-fog layer of the anti-fog resin sheet come into con...

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Abstract

The present invention provides an anti-fog process agent and an anti-fog resin sheet with excellent anti-fog ability and pellucidity. The surface process agent (anti-fog process agent) of the invention comprises fatty amide (A) and segmented copolymer of polyethylene oxide-polypropylene oxide (B), the ratio (mass) of the fatty amide (A) and segmented copolymer (B): (A) / (B) is equal to 1 / 99-37 / 63.Said fatty amide (A) can be C8-30 fatty acid and amines acylamide or ethylene oxide adduct. Anti-fog resin sheet can be manufactured by coating above surface process agent on at least a surface of the resin sheet. The present invention also comprises container formed with said anti-fog resin sheet.

Description

technical field [0001] The present invention relates to an antifogging surface treatment agent (antifogging treatment agent) and an antifogging resin sheet useful for imparting antifogging properties to the surface of a resin sheet, etc. container. Background technique [0002] Hydrophobic synthetic resin sheets such as styrene-based resin sheets can be used in packaging containers such as food, but their antifogging properties are relatively low. Therefore, when food or the like is placed in a container made of the above-mentioned sheet material, due to changes in temperature and humidity, water vapor will adhere to the surface of the container in the form of tiny water droplets to generate fog and reduce transparency. Visibility of the contents is thereby reduced. [0003] Therefore, a method of imparting antifogging properties to a resin sheet using fatty acid esters or the like has been proposed. For example, in Japanese Patent Publication No. 63-62538 (Patent Documen...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B27/28C09K3/18C08J7/04B65D65/42
Inventor 相根弘
Owner DAICEL POLYMER LTD
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