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Waterborne priming coating compound, polarizing plate containing compound, and preparation method of optical film containing priming coating

A primer and composition technology, applied in nonlinear optics, chemical instruments and methods, coatings, etc., can solve problems such as corrosion, damage to the working environment, etc.

Inactive Publication Date: 2012-04-18
LG CHEM LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this can cause corrosion and damage the working environment

Method used

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  • Waterborne priming coating compound, polarizing plate containing compound, and preparation method of optical film containing priming coating
  • Waterborne priming coating compound, polarizing plate containing compound, and preparation method of optical film containing priming coating
  • Waterborne priming coating compound, polarizing plate containing compound, and preparation method of optical film containing priming coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0092] A primer-treated acrylic film was prepared as follows: A 10 wt % primer composition was prepared by mixing 33.3 g of CK-PUD-F (Chokwang-polyurethane dispersion: aqueous solution with 30% solids), 1.4 g Colloidal silica (with 20% solids in water) and 65.3 g of pure water; use a #3 rod to coat the primer composition onto a corona-treated acrylic film to a thickness of about 300 nm; and at 100° C. Leave the acrylic film under dry for five minutes.

[0093] As the acrylic film, an AX film product (manufactured by Nippon Shokubai) having a thickness of 50 μm was used, and the acrylic film was heated at 50 W / m 2 / min under the conditions of corona treatment to prepare corona-treated acrylic film. A polarizing plate was prepared according to the following procedure. Apply PVA adhesive to both sides of the polarizer. A primer-treated acrylic film was on one side of the polarizer, and an alkali-treated TAC film was on the other side of the polarizer. Then, the primer-treated...

Embodiment 2

[0095] The primer composition except 10wt% is obtained by mixing 33.3g of CK-PUD-F (Chokwang-polyurethane dispersion: an aqueous solution with a 30% solid content), 1.4 g of colloidal silica (aqueous solution with a 20% solid content) ) and 65.3 g of pure water; and using a #5 rod to coat the primer composition onto a corona-treated acrylic film to a thickness of about 500 nm, a polarizing plate was prepared in the same manner as in Example 1.

Embodiment 3

[0097]The primer composition except 10wt% is obtained by mixing 33.3g of SUPERFLEX210 (Nippon Shokubai-polyurethane dispersion: an aqueous solution with a 30% solid content), 1.4 g of colloidal silicon dioxide (aqueous solution with a 20% solid content) and 65.3 g of pure water; and use a #5 rod to coat the primer composition onto a corona-treated acrylic film to a thickness of about 500 nm, and prepare a polarizing plate in the same manner as in Example 1.

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Abstract

The invention relates to a waterborne priming coating compound, a polarizing plate containing the waterborne priming coating compound, and a preparation method of an optical film containing the priming coating. For the priming coating compound has 100 parts of weight, the priming coating compound includes 1 to 30 parts by weight of polyurethane polymer, 0.1 to 10 parts by weight of water dispersible particles, and the balance water. The polarizing plate is arranged between the optical film and the priming coating formed by the priming coating compound. The method includes the steps of coating the priming coating compound on at least one side of the optical film and drying the optical film coated with the priming coating compound. The priming coating compound has excellent bonding performance, and can be contained in the polarizing plate without reducing the transparency of the polarizing plate and using additional procedures or devices.

Description

technical field [0001] Cross References to Related Applications [0002] This application claims priority from Korean Patent Applications No. 10-2010-0092685 filed on September 20, 2010 and No. 10-2011-0083998 filed on August 23, 2011 with the Korean Intellectual Property Office, and is hereby incorporated The disclosures thereof are incorporated into this application by reference. [0003] The present invention relates to a water-based primer composition, a polarizing plate comprising the water-based primer composition, and a method for preparing an optical film comprising a primer layer. Specifically, the present invention relates to a water-based primer composition for an optical film having good adhesion and transparency, a polarizing plate comprising the water-based primer composition, and a method for preparing an optical film comprising a primer layer method. Background technique [0004] Generally, polarizing plates have such figure 1 The stack structure shown. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J175/04C09J175/06C09J175/08C09J11/00C09J7/02G02B1/04G02B1/10G02B5/30B32B27/00C08G18/40C08G18/66G02F1/1335
CPCG02B1/10G02B5/3041C09D175/04C09D175/06C09D175/08C09J7/50C09D5/028C08K3/36C09J2429/00C09J2433/006C09J2475/003C09J2301/124C09J2301/122C09J2301/41C09J2301/312
Inventor 沈花燮徐银美金范锡李南贞
Owner LG CHEM LTD
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