Highly adhesive thermoplastic resin film

A thermoplastic resin film, easy-adhesive technology, applied in the direction of heat-activated film/sheet, synthetic resin layered products, adhesives, etc., can solve problems such as lack of adhesion, achieve excellent adhesion resistance, excellent heat and humidity resistance , good adhesion effect

Active Publication Date: 2012-08-22
TOYO TOYOBO CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Generally, in the case of a biaxially oriented thermoplastic film such as a biaxially oriented polyester film or a biaxially oriented polyamide film, the surface of the film is highly crystalline and oriented, so there is close contact with various paints, adhesives, inks, etc. Disadvantages of lack of compatibility

Method used

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  • Highly adhesive thermoplastic resin film
  • Highly adhesive thermoplastic resin film
  • Highly adhesive thermoplastic resin film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0204] (1) Preparation of coating liquid

[0205] The following coating agents were mixed to prepare a coating liquid. The number average molecular weight of the polyester resin was 20,000.

[0206]

[0207] (Silica sol with an average particle diameter of 40 nm and a solid content concentration of 40% by mass)

[0208] Particles 0.07% by mass

[0209] (Silica sol with an average particle diameter of 450 nm, a solid content concentration of 40% by mass)

[0210] Surfactant 0.05% by mass

[0211] (Silicon-based, solid content concentration 100% by mass)

[0212] (2) Manufacture of easy-adhesive polyester film

[0213]As a film base polymer, PET resin pellets having an intrinsic viscosity of 0.62 dl / g and substantially free of particles were dried under a reduced pressure of 133 Pa at 135° C. for 6 hours. Then, it was supplied to an extruder, melted and extruded into a sheet at about 280° C., and rapidly cooled on a rotating cooling metal roll maintained at a surface te...

Embodiment 2

[0237] Except having changed the coating liquid into the following coating liquid, it carried out similarly to Example 1, and obtained the easily-adhesive polyester film and laminated polyester film.

[0238]

[0239] (Silica sol with an average particle diameter of 40 nm and a solid content concentration of 40% by mass)

[0240] Particles 0.07% by mass

[0241] (Silica sol with an average particle diameter of 450 nm, a solid content concentration of 40% by mass)

[0242] Surfactant 0.05% by mass

[0243] (Silicon-based, solid content concentration 100% by mass)

Embodiment 3

[0245] Except having changed the coating liquid into the following coating liquid, it carried out similarly to Example 1, and obtained the easily-adhesive polyester film and laminated polyester film.

[0246]

[0247] (Silica sol with an average particle diameter of 40 nm and a solid content concentration of 40% by mass)

[0248] Particles 0.07% by mass

[0249] (Silica sol with an average particle diameter of 450 nm, a solid content concentration of 40% by mass)

[0250] Surfactant 0.05% by mass

[0251] (Silicon-based, solid content concentration 100% by mass)

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Abstract

Disclosed is a highly adhesive thermoplastic resin film which is substantially free from decrease in adhesion under high temperature high humidity conditions. Specifically disclosed is a highly adhesive thermoplastic resin film which comprises a coating layer on at least one surface of a base film. The highly adhesive thermoplastic resin film is characterized in that the coating layer contains (a) a urethane resin that contains a polycarbonate polyol as a component, and/or a polyester resin that does not substantially contain a carboxylic acid group and has a number average molecular weight of not less than 15,000, and (b) a carbodiimide compound.

Description

technical field [0001] The present invention relates to an easily-adhesive thermoplastic resin film excellent in adhesiveness and heat-and-moisture resistance. Specifically, it relates to substrates for functional films such as hard coat films, antireflection films, light diffusion sheets, prism-like lens sheets, near-infrared ray blocking films, transparent conductive films, and antiglare films mainly used in displays and the like. Easy-adhesive thermoplastic resin film suitable for materials. Background technique [0002] Generally, polyethylene terephthalate (PET), acrylic resin, polycarbonate (PC), triacetyl cellulose (TAC), a transparent thermoplastic resin film made of polyolefin, etc. [0003] When using the above-mentioned thermoplastic resin film as a base material of various functional films, functional layers according to various uses are laminated. For example, for a liquid crystal display (LCD), a protective film (hard coat layer) to prevent surface damage, a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/36B32B27/40C08J7/04C09D5/00C09D167/00C09D175/04G02B1/10G02B5/02G02B5/04G02B5/22H01B5/14
CPCB32B7/12B32B27/36C08G18/0823C08G18/0866C08G18/283C08G18/44C08G18/4676C08G18/6659C08G18/706C08G18/755C08G18/758C08G18/765C08G18/797C09D167/02C09D175/06C09J167/02C09J2475/00C09J7/35B32B27/40B32B2369/00
Inventor 伊藤晃侍山崎淳史矢吹宽子泽田薰水野直树东浦真哉
Owner TOYO TOYOBO CO LTD
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