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Polyester film

A technology of polyester film and polyester base film, which is applied in the field of polyester film, can solve the problem of not being able to completely block the leakage of oligomers, and achieve the effect of avoiding the increase of haze and blocking the leakage of oligomers

Active Publication Date: 2017-05-24
KOLON IND INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Above-mentioned invention is in order to control the leakage of oligomer, but, can not stop the leakage of oligomer completely

Method used

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  • Polyester film
  • Polyester film
  • Polyester film

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0149] 1) Preparation of water dispersion resin composition 1

[0150] 16% by weight of KLX-007 binder (TAKAMATSU Corp., Japan, water-dispersed resin composition with a solid content of 25%), 0.3% by weight of silicone-based wetting agent (Dow Corning Corp., polyester- Siloxane copolymer, Q2-5212), and 0.3% by weight of colloidal silicon particles with an average particle size of 140 nm were added to water and stirred for 2 hours to obtain a water-dispersed resin composition 1 with a total solid content of 4.6% by weight.

[0151] In the KLX-007 adhesive, the solid content weight ratio (A:B) of the acrylic resin A and the water-dispersed polyester-based resin B obtained by copolymerizing the glycidyl group-containing free-radically polymerizable unsaturated monomer is 50 :50,

[0152] The acrylic resin contains a glycidyl group-containing radically polymerizable unsaturated monomer as a comonomer in an amount of 50 mol% based on the total monomer components, and

[0153] The...

example 2

[0158] 1) Preparation of water dispersion resin composition 2

[0159] 16% by weight of the KLX-007 adhesive (TAKAMATSU Corp., Japan, a water-dispersed resin composition with a solid content of 25%), 0.4% by weight (10 parts by weight, based on the solid content of the adhesive) A compound represented by the following chemical formula 3, 0.3% by weight of a silicone-based wetting agent (Dow Corning Corp., polyester-siloxane copolymer, Q2-5212), and 0.3% by weight of a colloid having an average particle size of 140 nm The silicon particles were added to water and stirred for 2 hours, thereby obtaining a water-dispersed resin composition 2 having a total solid content of 4.6% by weight.

[0160] [chemical formula 3]

[0161]

[0162] 2) Preparation of oligomer retarded polyester film

[0163] After the dehydrated polyethylene terephthalate chips were put into the extruder and melted and extruded, the temperature was rapidly cooled and hardened using a casting drum with a su...

example 7

[0186] 1) Preparation of water dispersion resin composition 3

[0187] As the binder, an acrylic resin A copolymerized with a glycidyl group-containing radically polymerizable unsaturated monomer and a water-dispersible polyester-based resin B with a solid content weight ratio (A:B) of 40:60 were used. adhesive.

[0188] The acrylic resin A which copolymerized 60 mol% of glycidyl acrylate and 40 mol% of vinyl propionate and whose weight average molecular weight was 35000 was used.

[0189] Water-dispersible polyester-based resin B is an acid component (content of 50 mole %) using sulfoterephthalic acid (15 mole %) and terephthalic acid (85 mole %) and diethylene glycol A resin having a weight-average molecular weight of 14,000 obtained by polymerizing a diol component (50 mol %) of alcohol (50 mol %) and ethylene glycol (50 mol %).

[0190] 0.5% by weight (solids content) of binder and 0.3% by weight of silicone-based wetting agent (BYK 348, BYKCHMIE Corp.) were added to wat...

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Abstract

The present invention provides a polyester film that shields oligomers by an undercoat layer, and more particularly, provides an oligomer capable of retarding oligomer migration and having a low haze change rate for optical use Retardant Mylar.

Description

technical field [0001] The present invention relates to a polyester film shielding oligomers by an undercoat layer, and more particularly, to an oligomer capable of retarding migration of oligomers and having a low haze change rate for optical use Retardant Mylar. Background technique [0002] An optical film is a film used as an optical member of a display, it is used as an optical material for a liquid crystal display (LCD) backlight unit (BLU), or it is used to protect various displays such as LCD, plasma display panel (PDP), touch screen etc.) surface optical components. [0003] In such an optical film, excellent transparency and visibility are required, and a biaxially oriented polyester film having excellent mechanical and electrical characteristics is used as a base film. [0004] In such a biaxially oriented polyester film, since the surface hardness is low and the abrasion resistance or scratch resistance is insufficient, when the film is used as an optical membe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08J5/18C08J7/04G02B1/12G02B5/02C08J7/046
CPCC08J2367/02C08J2467/02C08J2433/04C08J7/042C08J7/0427C08J7/046
Inventor 林美笑曹恩惠白尚铉金时敏
Owner KOLON IND INC
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