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polyester multilayer film

A multi-layer film, polyester base film technology, used in polyester coatings, polyurea/polyurethane coatings, coatings, etc. The effect of less material migration, excellent light transmittance, and less change in surface resistance

Active Publication Date: 2021-08-06
KOLON IND INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At this time, conductive polymer antistatic films that are not dependent on humidity are mainly used. When conductive polymers are used to reduce static electricity, the light transmittance decreases, and there are limitations in the use of films for electronic materials and optical films. sex
Moreover, when the antistatic film undergoes a high-temperature process in the subsequent process, the oligomers migrate to the surface of the film, resulting in a decrease in optical properties and antistatic properties.

Method used

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  • polyester multilayer film
  • polyester multilayer film

Examples

Experimental program
Comparison scheme
Effect test

manufacture example 1

[0192] Production Example 1: Production of Water Dispersible Antistatic Composition (1)

[0193] As a conductive polymer aqueous dispersion, 60% by weight of Clevios P ​​(1.3% by weight of solids) of Heraeus (Heraeus), 6% by weight of water, and 5% by weight of isopropanol were put into a mixing container and stirred. For 1 hour, 2-amino-2-methyl-1-propanol (Alfa aesar (Alfa Aesar), 95%) of 2% by weight was further put into a mixing container, and after stirring for another 1 hour, it was obtained as a water-based polyurethane adhesive. Mixture, put into NeoRez R-972 (solid 34% by weight) of 20% by weight of Neo resins (Disman) company, after stirring again 30 minutes, the dimethyl sulfoxide of 5% by weight, 1% by weight of Silicone wetting agent (BYK348 from BYK Company) and 1% by weight of anti-slip agent (Dow corning Company, Q8-8211) were added into the mixing container, and stirred for 1 hour to prepare an antistatic composition.

[0194] Then, the primary antistatic com...

manufacture example 2

[0195] Production Example 2: Production of Water Dispersible Antistatic Product (2)

[0196] As binder, the solid weight ratio of acrylic resin (A) and water-dispersible polyester resin (B) formed by copolymerization of radically polymerizable unsaturated monomer containing glycidyl group is (A): (B) = 50:50 binder.

[0197] The propylene-based resin (A) contains 50 mol% of a glycidyl group-containing radically polymerizable unsaturated monomer as a comonomer in the total monomer component. The water-dispersible polyester resin contains 50 mol% of diethylene glycol in the total ethylene glycol component, and uses a sulfonic acid alkali metal salt compound containing 10 mol% in the total acid component, and the weight average molecular weight used is for 32000.

[0198] The water-dispersible polyester resin (B) uses 50 mol% of an acid component (sulfo-p-phenylene 15 mol% of dicarboxylic acid, 85 mol% of terephthalic acid) and polymerized resin, the weight average molecular w...

manufacture example 3

[0200] Production Example 3: Production of Water Dispersible Antistatic Composition (2)

[0201] As a conductive polymer aqueous dispersion, 30% by weight of Heraeus (Heraeus) company's Clevios P ​​(solid 1.3% by weight), 6% by weight of water, and 5% by weight of isopropanol were put into a mixing vessel and stirred. For 1 hour, 2-amino-2-methyl-1-propanol (Alfa aesar (Alfa Aesar), 95%) of 2% by weight was further put into a mixing container, and after stirring for another 1 hour, it was obtained as a water-based polyurethane adhesive. Mixture, put into NeoRez R-972 (solid 34% by weight) of 20% by weight of Neo resins (Disman) company, stir after 30 minutes, the dimethyl sulfoxide of 5% by weight, 1% by weight of organic Silicone wetting agent (BYK (Byke) company BYK348), 1% by weight of anti-slip agent (Dow corning (Dow Corning (Dow Corning) company's Q8-8211) was added into the mixing container, and further stirred for 1 hour to produce an antistatic composition.

[0202] ...

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Abstract

The invention relates to a polyester multilayer film, which comprises: a polyester base film; an antistatic layer formed on one surface of the polyester base film, comprising a conductive polymer and a water-based polyurethane adhesive; and a primer layer, formed on the other surface of the polyester base film, with a refractive index of 1.4 to 1.5, the polyester base film includes a base layer and a surface layer, and at least one layer of the base layer is laminated on both surfaces of the base layer. As for the surface layer, the oligomer content of the polyester resin forming the surface layer is 0.3-0.6% by weight, the content of diethylene glycol is 0.1-1.2% by weight, and the intrinsic viscosity satisfies Formula 1. This polyester multilayer film is an optical polyester multilayer film excellent in oligomer barrier properties, antistatic properties, and light transmittance.

Description

technical field [0001] The invention relates to a polyester multilayer film, in particular to an optical polyester multilayer film with excellent oligomer barrier properties, antistatic properties and light transmittance. Background technique [0002] Recently, with the rapid development of various electronics, electrical appliances, and information and communication fields, problems caused by static electricity have occurred in many fields such as industrial products and daily necessities to which they are applied, and anti-static functions in these machines and in the field have become necessary. Features. Anti-static refers to releasing the charge accumulated on the surface of the insulator in an appropriate way. [0003] The reason why such antistatic performance is required is because static electricity is generated in the film manufacturing process or film processing process so that dust or foreign matter adheres to the product and causes a discharge phenomenon, and w...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B27/36B32B27/06B32B33/00C09D175/04C09D5/24C09D133/14C09D167/02C08J5/18C08L67/02C08K3/36
CPCB32B27/36B32B27/40C08J5/18C08J7/042C08J7/08C08L67/00C08L2201/10C08J7/043C08J7/044
Inventor 曹恩惠李峰硕林美笑朴载奉
Owner KOLON IND INC
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