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Pressure sensitive adhesive for polaroid

A pressure-sensitive adhesive and polarizer technology, applied in optics, adhesives, optical components, etc., can solve problems such as poor product durability, poor fit or display, pollution, etc., to reduce fluidity, improve stability, and improve optical performance. The effect of poor fluidity

Inactive Publication Date: 2019-11-12
合肥德瑞格光电科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, due to its own defects, the pressure-sensitive adhesives used in existing polarizers are likely to cause poor lamination or display in high-temperature and high-humidity environments, resulting in poor product durability. In addition, this type of pressure-sensitive adhesive has high flow Sex, easy to flow out from the polarizer and cause pollution

Method used

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  • Pressure sensitive adhesive for polaroid
  • Pressure sensitive adhesive for polaroid

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] The pressure-sensitive adhesive for the polarizer of the present embodiment, the composition of each component by mass percentage is:

[0019] (1) 16 wt% acrylate copolymer, the copolymer monomers are methyl methacrylate and methyl acrylate, purchased from Japan Saiden Chemical Co., Ltd., and the degree of polymerization is 1500.

[0020] (2) 2wt% acrylate, which is a mixture of n-butyl acrylate and methyl acrylate in a mass ratio of 2.5:1;

[0021] (3) 0.1wt% modifier, the modifier is acrylic modified polysiloxane, purchased from Jiande Polymer New Material Co., Ltd.

[0022] (4) 81.9wt% diluent, which is a mixture of ethyl acetate and toluene in a mass ratio of 2:1.

Embodiment 2

[0024] The pressure-sensitive adhesive for the polarizer of the present embodiment, the composition of each component by mass percentage is:

[0025] (1) 25wt% acrylate copolymer, the copolymer monomers are methyl acrylate and hydroxyethyl methacrylate, purchased from Japan Saiden Chemical Co., Ltd., and the degree of polymerization is 2000;

[0026] (2) 3wt% acrylate, which is a mixture of n-butyl acrylate and ethyl acrylate in a mass ratio of 3:1;

[0027] (3) 0.4wt% modifier, which is carboxy-modified polysiloxane, purchased from Shenzhen Xinya New Material Co., Ltd.;

[0028] (4) 71.6wt% diluent, which is a mixture of toluene and n-hexane in a mass ratio of 1:1.5.

Embodiment 3

[0030] The pressure-sensitive adhesive for the polarizer of the present embodiment, the composition of each component by mass percentage is:

[0031] (1) 30 wt% acrylate copolymer, the copolymer monomers are methyl acrylate, acrylic acid and hydroxyethyl methacrylate, purchased from Japan Saiden Chemical Co., Ltd., and the degree of polymerization is 3500.

[0032] (2) 1.5wt% acrylate, which is a mixture of 2-methyl methacrylate, n-butyl acrylate and ethyl acrylate in a mass ratio of 1:1:2;

[0033] (3) 0.6wt% modifier, which is epoxy-modified polysiloxane, purchased from Anhui Aiyota Silicone Oil Co., Ltd.

[0034] (4) 67.9 wt% diluent, which is a mixture of toluene, n-hexane and acetone in a mass ratio of 1:1:4.

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Abstract

The invention discloses a pressure sensitive adhesive for a polaroid. The pressure sensitive adhesive includes an acrylate copolymer, a diluent, acrylate and a modifier. The pressure sensitive adhesive is resistant to high temperature and high humidity, has low fluidity, and is not liable to produce an overflow phenomenon.

Description

technical field [0001] The invention relates to a pressure-sensitive adhesive for a polarizer. Background technique [0002] The full name of polarizer is polarizer. The imaging of liquid crystal display must rely on polarized light. All liquid crystal devices have a liquid crystal sheet with a total thickness of about 1mm composed of two polarizers at the front and back close to the liquid crystal glass. If any polarizer is missing, the liquid crystal cannot display images. The basic structure of the polarizer includes: the middle PVA film, two layers of TAC film, pressure-sensitive adhesive, release film and protective film. In order to adapt to the use in liquid crystal displays, a layer of pressure-sensitive adhesive should be attached to the polarizer, and a release film to protect the pressure-sensitive adhesive should be compounded to form a projection-type polarizer. When using it, the release film can be removed. It is convenient to attach the polarizer to the gla...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J4/02C09J4/06C09J11/08G02B5/30
CPCC09J4/06C09J11/08G02B5/305
Inventor 李家鸣潘晓明徐学斌高申保吴福胜陈喜成杨阳
Owner 合肥德瑞格光电科技有限公司
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