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Optical Film, Antiglare Film And Polarizing Plate

By mixing rubber elastomer particles and lubricants in acrylic resin, and adding ultraviolet absorbers, the optical film or anti-glare film made can solve the problem of performance degradation and tightening of polarizers under high temperature and high humidity conditions. , improves the impact resistance and smoothness of the film, enhances productivity and transparency.

Active Publication Date: 2015-07-01
HUBEI LIYOU OPTOELECTRONICS TECHNOLOGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, when the lubricant is present in the resin constituting the film to improve the smoothness of the film surface, the following problems may occur: the transparency of the film is reduced, or the lubricant oozes out from the film to float white on the surface. powdery substance
In addition, when the surface of the film is unevenly formed by the presence of inorganic fine particles in the resin constituting the film, the inorganic fine particles may accumulate in the manufacturing equipment during the film manufacturing process.
For this reason, there is also concern about a reduction in productivity due to equipment clogging and process contamination.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0165] (acrylic resin and acrylic elastic polymer particles)

[0166] A copolymer having a weight ratio of methyl methacrylate / methyl acrylate of 96 / 4 was used as an acrylic resin. In addition, the elastomer particles of the following 3-layer structure and the particles with an average particle diameter of 240 nm up to the elastomer as the intermediate layer are used as acrylic elastic polymer particles. In the above-mentioned 3-layer structure, the innermost layer uses a small amount of It is a rigid polymer polymerized from allyl methacrylate and methyl methacrylate. The middle layer is made of butyl acrylate as the main component and further polymerized with styrene and a small amount of allyl methacrylate. It is a soft elastomer, and the outermost layer is a hard polymer polymerized with a small amount of ethyl acrylate and methyl methacrylate.

[0167] (Production of acrylic optical film)

[0168] The above-mentioned acrylic resin and the above-mentioned acrylic elastic...

Embodiment 2

[0171] Except having changed the addition amount of stearic acid from 0.05 part to 0.03 part, it carried out similarly to Example 1, and produced an acrylic resin film, and wound it up on the core with a diameter of 6 inches. The film was stored for 3 months in the state wound on the core in this way. As a result, no tightness of winding was observed even after 3 months of storage, and bleeding of the lubricant was not observed either.

Embodiment 3

[0173] Except having changed the addition amount of stearic acid from 0.05 part to 0.07 part, it carried out similarly to Example 1, and produced an acrylic resin film, and wound it up on the core with a diameter of 6 inches. The film was stored for 3 months in the state wound on the core in this way. As a result, no tightness of winding was observed even after 3 months of storage, and bleeding of the lubricant was not observed either.

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PUM

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Abstract

Disclosed is an optical film which is configured from a resin lubricant composition that contains 100 parts by weight of an acrylic resin composition and 0.01-0.09 part by weight of a lubricant. The optical film is characterized in that the acrylic resin composition contains a transparent acrylic resin and rubber elastic particles having an average particle diameter of 10-300 nm, and the content of the rubber elastic particles is 25-45% by weight of the acrylic resin composition. An anti-glare film can be obtained by forming an anti-glare layer on the optical film. A polarizing plate or an anti-glare polarizing plate can be obtained by bonding the optical film or the anti-glare film to a polyvinyl alcohol-based polarizing film.

Description

[0001] This application is a divisional application, the application number of its parent application: 201180027836.5, the filing date: 2011.06.01, the name of the invention: optical film, anti-glare film and polarizer technical field [0002] The present invention relates to an optical film suitable for use as a protective film of a polyvinyl alcohol-based polarizing film constituting a polarizer; an anti-glare film having an anti-glare layer formed on the optical film; and a polarizing film laminated with the optical film or Polarizing film with anti-glare film. Background technique [0003] Polarizers are widely used, mainly as components of liquid crystal display devices. A polarizing plate is usually distributed in a state where a protective film is laminated on at least one surface of a polarizing film made of a polyvinyl alcohol-based resin, and is incorporated into a liquid crystal display device or the like. Conventionally, a triacetyl cellulose film has been used ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B5/30G02B5/02
CPCG02B1/04G02B5/0242G02B5/30
Owner HUBEI LIYOU OPTOELECTRONICS TECHNOLOGY CO LTD