Unlock instant, AI-driven research and patent intelligence for your innovation.

Multilayer film and method for producing same

A manufacturing method and a laminated film technology, applied in chemical instruments and methods, layered products, magnetic recording layers, etc., can solve the problems of poor identification and achieve excellent adhesion

Active Publication Date: 2017-10-13
TORAY IND INC
View PDF17 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When a hard coat layer is laminated on a polyester film as a base material, if the refractive index of the hard coat layer and the polyester film as a base material are different, interference spots due to interface reflection will occur, and the visibility will deteriorate. Therefore, it is required to reduce interference speckle

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Multilayer film and method for producing same
  • Multilayer film and method for producing same
  • Multilayer film and method for producing same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0260] First, resin composition 1 was prepared as follows.

[0261]

[0262] The above-mentioned particles (A), acrylic resin (D), π-electron conjugated polymer compound (B) and epoxy compound (C) were sequentially added to an aqueous solvent and mixed in the ratios shown in Table 1 to obtain a resin combination.

[0263] ・Admixture (AD) of particle (A) and acrylic resin (D)

[0264] ·π-electron conjugated polymer compound (B)

[0265] ・Epoxy compound (C): polyglycerol polyglycidyl ether-based epoxy crosslinking agent (Nagase ChemteX Co., Ltd. "Denacol (registered trademark)" EX-512 (molecular weight: 630, epoxy equivalent: 168, water solubility: 100 %)

[0266]

[0267] Next, PET pellets (intrinsic viscosity: 0.63 dl / g) substantially free of pellets were sufficiently vacuum-dried, supplied to an extruder, melted at 285° C., extruded in a sheet form from a T-shaped nozzle, and used Electrostatically applied casting method is wound into a mirror casting drum with a surf...

Embodiment 2～12

[0272] A laminated film was obtained in the same manner as in Example 1 except that the ratio of the resin composition in the coating solution was changed as shown in Table 1.

[0273] Table 1 shows properties and the like of the obtained laminated film.

Embodiment 13～16

[0275] Change the number average particle diameter of the metal oxide particles (A) to 3nm (Example 13), 15nm (Example 14), 30nm (Example 15), and 50nm (Example 16). A laminated film was obtained in the same manner as in Example 1. Table 1 shows properties and the like of the obtained laminated film.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
surface roughnessaaaaaaaaaa
particle sizeaaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

A multilayer film which is obtained by providing at least one surface of a polyester film with a resin layer, and which is characterized in that: the reflectance of the surface of the resin layer at a wavelength of 550 nm is 6.0% or more; the surface resistivity of the surface of the resin layer is 1012 [omega] / sq or less; and the amount of change [delta][gamma] of the surface energy of the surface of the resin layer before and after a boiling test (namely, [delta][gamma] = |(surface energy of resin layer after boiling test) - (surface energy of resin layer before boiling test)|) is 5 mN / m or less. Provided is a multilayer film which has excellent transparency, excellent interference spot suppression when a hard coat layer having high refractive index is laminated thereon, and excellent adhesion to a hard coat layer having high refractive index, and which exhibits high antistatic properties regardless of humidity.

Description

technical field [0001] The present invention relates to a laminated film in which a resin layer is provided on at least one side of a polyester film and a method for producing the same. Background technique [0002] Thermoplastic resin films, including biaxially stretched polyester films, are used in many applications such as magnetic recording materials and packaging materials due to their excellent properties in terms of mechanical properties, electrical properties, dimensional stability, transparency, and chemical resistance. is widely used in. [0003] In particular, polyester films have been used in various optical films in recent years mainly for display components such as touch panels, liquid crystal display panels (LCD), plasma display panels (PDP), and organic electroluminescence (organic EL). [0004] Particularly in such applications, a hard coat film in which a hard coat layer is laminated on a polyester film is used. In this hard coat film, in order to improve...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/36G11B5/73
CPCB32B27/36G11B5/73G11B5/73927G11B5/733
Inventor 尾形雅美佐藤幸平高田育
Owner TORAY IND INC