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Optically Adhesive Polyester Film

A polyester film, adhesive technology, applied in the direction of optics, adhesives, adhesive products, etc., to achieve the effects of inhibiting machinability, excellent moisture and heat resistance, and excellent interference spots

Active Publication Date: 2015-08-05
TOYOBO CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Thus, in the method of above-mentioned (1), (2), it is necessary to control the thickness of coating layer extremely strictly in production management.

Method used

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  • Optically Adhesive Polyester Film
  • Optically Adhesive Polyester Film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0150] (1) Adjustment of coating liquid

[0151] The following paints were mixed to prepare a coating liquid. Particle A is SnO with a refractive index of 2.1 2 , Particle B is a silica particle with an average primary particle diameter of about 500 nm.

[0152] Water 40.16% by mass

[0153] Isopropanol 30.00% by mass

[0154] Aqueous polyester dispersion (B-1) 18.19% by mass

[0155] Block polyisocyanate aqueous dispersion (C)

[0156] 2.08% by mass

[0157] Particle A

[0158] 9.37% by mass

[0159] (Serame-su S-8 manufactured by Taki Chemical Co., Ltd., solid content concentration 8% by mass)

[0160] Particle B 0.17% by mass

[0161] (シ-hosta-KEW50 manufactured by Nippon Catalyst Co., Ltd., solid content concentration 15% by mass)

[0162] Silicone surfactant 0.03% by mass

[0163] (solid content concentration 100%)

[0164] (2) Manufacture of optically adhesive polyester film

[0165] As a film raw material ...

Embodiment 2

[0208] Except having changed the coating liquid to the following, it carried out similarly to Example 1, and obtained the laminated polyester film for optics.

[0209] Water 44.54% by mass

[0210] Isopropanol 30.00% by mass

[0211] Aqueous polyester dispersion (B-1) 12.21% by mass

[0212] Block polyisocyanate aqueous dispersion (C)

[0213] 3.67% by mass

[0214] Particle A 9.38% by mass

[0215] (Serame-su S-8 manufactured by Taki Chemical Co., Ltd., solid content concentration 8% by mass)

[0216] Particle B 0.17% by mass

[0217] (シ-hosta-KEW50 manufactured by Nippon Catalyst Co., Ltd., solid content concentration 15% by mass)

[0218] Silicone surfactant 0.03% by mass

[0219] (solid content concentration 100% by mass)

Embodiment 3

[0221] Except having changed the coating liquid to the following, it carried out similarly to Example 1, and obtained the laminated polyester film for optics.

[0222] Water 37.29% by mass

[0223] Isopropanol 30.00% by mass

[0224] Aqueous polyester dispersion (B-1) 22.09% by mass

[0225] Block polyisocyanate aqueous dispersion (C)

[0226] 1.04% by mass

[0227] Particle A

[0228] 9.38% by mass

[0229] (Serame-su S-8 manufactured by Taki Chemical Co., Ltd., solid content concentration 8% by mass)

[0230] Particle B

[0231] 0.17% by mass

[0232] (Nippon Catalyst Co., Ltd. シ-hosta-KEW50, solid content concentration 15% by mass)

[0233] Silicone surfactant 0.03% by mass

[0234] (solid content concentration 100% by mass)

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Abstract

Disclosed is a highly adhesive polyester film for optical use, wherein the formation of an iris-like color pattern under the light of a fluorescent lamp is suppressed. The highly adhesive polyester film for optical use has excellent adhesion to a hard coat layer, excellent adhesion under high temperature, high humidity conditions (wet heat resistance), and chipping resistance of a coating layer. Specifically disclosed is a highly adhesive polyester film for optical use, wherein a coating layer containing a polyester resin, particles A and particles B is provided on at least one surface of a polyester film. The polyester resin contains, as acid components, a naphthalene dicarboxylic acid and a dicarboxylic acid component represented by formula (1) and / or a diol component represented by formula (2); the particles A are metal oxide particles having a refractive index of not less than 1.7 but not more than 3.0; and the particles B have an average particle diameter of not less than 200 nm but not more than 700 nm. (1) HOOC-(CH2)n-COOH (In the formula, n represents an integer satisfying 4 = n = 10.) (2) HO-(CH2)n-OH (In the formula, n represents an integer satisfying 4 = n = 10.)

Description

technical field [0001] The present invention relates to an easily adhesive polyester film for optics. For example, it is installed on the front surface of display screens such as touch panels, liquid crystal display panels (LCD), Brown tubes (CRT) of TVs and computers, plasma displays (PDP), organic electroluminescence (organic EL), and imparts a suppressive appearance. Easy-adhesive polyester film for optics that is excellent in light incidence, anti-reflection properties such as glare and iridescent colors, adhesion to hard coats, and adhesion after high-temperature and high-humidity treatment. Background technique [0002] A hard coat film in which a transparent hard coat layer is laminated is used on the front surfaces of displays such as touch panels, computers, televisions, and liquid crystal display devices, decorative materials, and the like. In addition, as the transparent plastic film of the base material, a transparent biaxially oriented polyester film is usually...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B27/36C08J7/04C09D4/02C09D5/00C09D183/07C09J7/02C09J11/04C09J167/02C09J167/03G02B1/14B32B7/02G02B1/10G02B1/111
CPCB32B27/36B32B27/08C09J4/00G02B1/118C09J167/02B32B27/20G02B1/115G02B5/02B32B27/06B32B2255/10B32B2255/26B32B2264/102B32B2307/306B32B2307/40B32B2405/00B32B2457/20B32B2551/00C09J2203/318B32B27/18B32B2305/72B32B2307/748C08J7/04G02B1/14
Inventor 伊藤晃侍东浦真哉山口洋平水野直树
Owner TOYOBO CO LTD
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