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Optically Adhesive Polyester Film
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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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Thus, in the method of above-mentioned (1), (2), it is necessary to control the thickness of coating layer extremely strictly in production management.
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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.
[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
[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
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Abstract
Disclosed is a highly adhesivepolyester film for optical use, wherein the formation of an iris-like color pattern under the light of a fluorescent lamp is suppressed. The highly adhesivepolyester 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 adhesivepolyester 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 naphthalenedicarboxylic acid and a dicarboxylic acid component represented by formula (1) and / or a diol component represented by formula (2); the particles A are metaloxide 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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