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Composition for optical films, base having optical film, molded body and method for producing molded body

A technology of optical film and composition, applied in chemical instruments and methods, optics, household appliances, etc.

Inactive Publication Date: 2017-05-31
PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since it is difficult to prepare a material that satisfies Formula 1, the visible light reflectance of the substrate with an anti-reflection film in circulation is about 1%.

Method used

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  • Composition for optical films, base having optical film, molded body and method for producing molded body
  • Composition for optical films, base having optical film, molded body and method for producing molded body

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0112] As a substrate, a colorless and transparent PET substrate (manufactured by Toray Corporation, trade name LUMIRROR U34) was prepared.

[0113] In addition, as a thermosetting resin composition containing silica-based hollow fine particles, a thermosetting resin, and a volatile solvent, ELCOM MA-1021SIC manufactured by Nikke Catalytic Chemicals Co., Ltd. was prepared. To this composition, the following nonvolatile liquids were added to prepare various antireflection film compositions.

[0114] 1) Mineral oil (manufactured by Johnson & Johnson, baby oil): The vapor pressure at 25°C is lower than the detection limit, the boiling point is 250°C or higher, the refractive index is about 1.46, and the viscosity at 23°C is 0.6 Pa·s.

[0115] 2) Refined white spindle oil (manufactured by AZ Co., Ltd., part number 035): the vapor pressure at 25°C is lower than the detection limit, the boiling point is 250°C or higher, and the refractive index is about 1.46.

[0116] 3) Fluorine c...

Embodiment 2

[0122] As the substrate, a colorless and transparent base material (manufactured by Teijin Corporation, trade name NJ-5100 (acrylic / polycarbonate resin film: hereinafter, APC film) was used. Until the drying treatment, it was performed in the same manner as in Example 1, and the The surface of the film forms a dry film. In the dry film, the thermosetting resin is not fully cured. The APC film that has formed the dry film is put into the mold, and the back side of the APC film (the side that does not form the film) is injection-molded with poly Carbonate resin, the molded body is integrally molded on the back of the APC film to produce a molded body with an anti-reflection film. At this time, during the molding, the APC film is deformed along the mold, and at the same time, the thermosetting resin is completely cured in the dry film To form an anti-reflection film.

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Abstract

This composition for optical films contains silica-based hollow fine particles, a matrix precursor, a non-volatile liquid and a volatile solvent. The vapor pressure of the non-volatile liquid at 25 DEG C is 500 Pa or less, and the boiling point of the non-volatile liquid is 250 DEG C or more. The volatile solvent has higher volatility than the non-volatile liquid. The content of the non-volatile liquid is from 0.1 part by mass to 30 parts by mass (inclusive) per 100 parts by mass of the total mass of the silica-based hollow fine particle component and the matrix precursor component.

Description

technical field [0001] The present disclosure relates to a composition for forming an optical film such as an antireflection film that prevents reflection of external light on the surface of a display device or the like, a substrate having the optical film on the surface, a molded article, and a method for producing the molded article. Background technique [0002] Conventionally, films and the like for protecting the surfaces of display devices used in mobile phones, tablet terminals, car navigation systems, and the like have been proposed. For example, Patent Documents 1 and 2 propose a protective film in which an adhesive layer is provided on one surface of a resin film and attached to the surface of a display panel. [0003] In addition, in a display device, in order to prevent external light from being reflected on the display screen and make the displayed image or the like unclear, the display screen is sometimes formed of a base material such as a plastic film provide...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B1/111B32B27/20C08K7/26C08L101/00G02B1/18C09D7/61
CPCB32B27/20C08K7/26C08L101/00G02B1/111G02B1/18B29D11/00788C09D7/70C09D5/006C09D5/1618C09D5/1687G02B1/11C09D7/61B29C45/14336B29C45/14811B29D11/00634B29D11/00865B29K2069/00B29K2633/00B29K2667/003B29K2995/003B29L2011/0066B29L2031/3475
Inventor 堀贤哉井上博文柴田信彦竹内秀树杉本诚志
Owner PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD
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