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Polarizer adhesive and production process thereof

A production process and adhesive technology, which is applied in the field of polarizers, can solve problems such as air bubbles, delamination, and peeling, and achieve the effects of improved heat resistance, good adhesion, and good initial adhesion

Inactive Publication Date: 2020-09-22
NANJING HUIXIN PHOTOELECTRIC MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, after the polarizer on the market is bonded to the glass cover of the LCD screen, warping, air bubbles, delamination, peeling and other undesirable phenomena occur.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] The technical solution of this embodiment is: a polarizer adhesive, including acrylate pressure-sensitive adhesive made of acrylate polymer, PET release film substrate and PET release film heavy film, the acrylate polymer substances including acrylic acid, methyl acrylate, methyl methacrylate, α-methacrylic acid, styrene, ethyl acetate, N-methylol acrylamide, 2-hydroxyethyl methacrylate, hydroxyethyl acrylate, Hydroxybutyl acrylate, isooctyl acrylate and azobisisobutyrocyanide, the acrylate pressure-sensitive adhesive is coated on the PET release film light film, and after drying in an oven, the PET is attached on the other side. Release film heavy film, as shown in Table 1,

[0015] PET release film light film High Performance Acrylic Pressure Sensitive Adhesive PET release film heavy film

[0016] This embodiment provides a production process for a polarizer adhesive. Firstly, an acrylate polymer is configured, wherein the acrylate polymer incl...

Embodiment 2

[0020] It differs from Example 1 only in that the proportions of the components in the acrylate polymer are different.

[0021] Wherein the acrylate polymer includes 6 parts of acrylic acid, 20 parts of methyl acrylate, 12 parts of methyl methacrylate, 40 parts of isooctyl acrylate, 10 parts of butyl acrylate, 4 parts of styrene, and 2 parts of hydroxyethyl acrylate , 3 parts of N-methylolacrylamide and 3 parts of hydroxybutyl acrylate.

Embodiment 3

[0023] It differs from Examples 1 and 2 only in that the proportions of the components in the acrylate polymer are different.

[0024] Wherein the acrylate polymer includes 3 parts of acrylic acid, 15 parts of methyl acrylate, 8 parts of methyl methacrylate, 50 parts of isooctyl acrylate, 11 parts of butyl acrylate, 7 parts of styrene, and 2 parts of hydroxyethyl acrylate , 2 parts of N-methylolacrylamide and 2 parts of hydroxybutyl acrylate.

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PUM

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Abstract

The invention discloses a polarizer adhesive which comprises an acrylate pressure-sensitive adhesive prepared from an acrylate polymer, a PET release film base material and a PET release film heavy film. The acrylate polymer comprises acrylic acid, methyl acrylate, methyl methacrylate, alpha-methacrylic acid, styrene and ethyl acetate, N-methylolacrylamide, methacrylic acid-2-hydroxyethyl ester, hydroxyethyl acrylate, hydroxybutyl acrylate, ethylhexyl acrylate and azobisisobutyronitrile. the acrylate pressure-sensitive adhesive is coated on the PET release film light film and is dried by a drying oven, and then the PET release film heavy film is attached to the other surface of the PET release film light film so that the adhesive has the advantages of better initial adhesion, good adhesiveness, high permanent adhesion and the like, has better bonding and re-stripping properties, well improves the heat resistance, and is suitable for various polarizers.

Description

technical field [0001] The invention belongs to the technical field of polarizers, and in particular relates to a polarizer adhesive and a production process thereof. Background technique [0002] As a polarizer for LCD (liquid crystal flat panel display), it is usually a polyvinyl alcohol film (PVA film) that absorbs dichroic substances (commonly used iodine and dichroic dyes), and is stretched and dried to form a polarized polarizer. The functional PVA film is made by attaching (at least one side) an inner protective film (commonly used as a triacetyl cellulose film TAC film) through an adhesive (glue). A polarizer made of iodine as a dichroic substance is usually called an "iodine-based polarizer", and a polarizer made of a dye as a dichroic substance is usually called a "dye-based polarizer". Compared with dye-based polarizers, iodine-based polarizers have obvious advantages in terms of transmittance, degree of polarization, and contrast, and are therefore widely used. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J133/08C09J7/38C09J7/10C08F220/18C08F220/06C08F220/14C08F212/08C08F220/20C08F220/58
CPCC09J133/24C09J2433/00C09J7/10C09J7/385C08F220/1808C08F220/06C08F220/14C08F220/1804C08F212/08C08F220/20C08F220/58
Inventor 王小莉陈淼淼张欢
Owner NANJING HUIXIN PHOTOELECTRIC MATERIAL
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