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Adhesive composition for polarizing plate, polarizing plate and optical element using same

A polarizing plate and adhesive technology, used in polarizing elements, optical elements, film/sheet adhesives, etc., can solve problems such as difficulty in maintaining curing consistency and being easily damaged by moisture

Active Publication Date: 2016-06-22
CHEIL IND INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, cationic polymerized UV-curable adhesives are susceptible to moisture damage during the curing process, making it difficult to maintain a consistent cure

Method used

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  • Adhesive composition for polarizing plate, polarizing plate and optical element using same
  • Adhesive composition for polarizing plate, polarizing plate and optical element using same
  • Adhesive composition for polarizing plate, polarizing plate and optical element using same

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Embodiment Construction

[0020] According to one aspect of the present invention, the adhesive composition for polarizing plates can be used to attach protective films such as TAC (triacetyl cellulose) films, PET (polyethylene terephthalate) films, PC (polyethylene terephthalate) films, Carbonate) film, COP (Cyclic Olefin Polymer) film, acryl film, etc. are attached to one or both sides of the polarizer.

[0021] In one embodiment of the present invention, the adhesive composition for a polarizing plate may include (A) an epoxy compound, (B) a (meth)acrylic compound, and (C) a polyfunctional thiol compound.

[0022] Here, the term "compound" may refer to a monomer, an oligomer, a resin, or the like.

[0023] Here, the term "(meth)acrylic acid" may refer to acrylic acid and / or methacrylic acid.

[0024] epoxy compound

[0025] The epoxy compound imparts adhesiveness between the polarizer and the protective film while providing high reliability of the adhesive layer formed from the adhesive composit...

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Abstract

An adhesive composition for a polarizing plate, a polarizing plate and an optical element using the same. The adhesive composition for a polarizing plate includes (A) an epoxy compound, (B) a (meth)acrylic compound, and (C) a polyfunctional thiol compound.

Description

technical field [0001] The present invention relates to an adhesive composition for polarizing plates, a polarizing plate using the same, a method for its production, and an optical element comprising the same. More specifically, the present invention relates to an adhesive composition for a polarizing plate, which can be used to attach a protective film to one or both sides of a polarizer formed of PVA (polyvinyl alcohol) or the like, and can be formed in a cross-linked Adhesive layer with excellent properties in terms of density, adhesion, durability and water resistance. The present invention also relates to a polarizing plate using it, a method for its production, and an optical element comprising it. Background technique [0002] Adhesives for polarizing plates are used to attach a protective film to one or both sides of a polarizer comprising a PVA film. As such adhesives for polarizing plates, hydrophilic and water-soluble water-soluble PVA adhesives are widely used...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J4/02C09J11/06C09J7/00G02B5/30G02B1/08
CPCC09J163/00G02B5/3033C08G59/66C08L33/066G02B1/14G02B1/10
Inventor 李泰贤赵益晥俞美然李度宪韩仁天
Owner CHEIL IND INC
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