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High-temperature-resistant acrylate protective film

A technology of acrylate and methyl acrylate, which is applied in the direction of pressure-sensitive film/sheet, ester copolymer adhesive, film/sheet-shaped adhesive, etc., and can solve the anti-adhesion adhesion of protective film and the good quality of metal oxide film Low drying rate and other problems, to achieve the effect of shortening the drying time, high adhesion, and low adhesion

Pending Publication Date: 2019-11-12
南京五人光学薄膜有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, organic silica gel and a small amount of polyurethane are mainly used to make protective films in the industry. Such protective films have long-term problems of anti-sticking and poor adhesion after processing, and the yield rate of metal oxide films is low.

Method used

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  • High-temperature-resistant acrylate protective film
  • High-temperature-resistant acrylate protective film
  • High-temperature-resistant acrylate protective film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Preparation of High Temperature Resistant Acrylic Protective Film

[0035] 1. Preparation of acrylate polymer: firstly put 0.4 parts of acrylic acid, 8 parts of methyl acrylate, 20 parts of butyl acrylate, 4 parts of hydroxyethyl acrylate, 3.6 parts of hydroxybutyl acrylate and 60 parts of ethyl acetate in a four-necked flask Heat and stir at medium temperature to 80°C, then dropwise add 0.1% azobisisobutylcyanide of the total mass of the reactant to react at 80°C for 8 hours, cool to 40°C and discharge;

[0036] 2. Coating film: Coat the prepared acrylate polymer on the PET substrate through the acrylate polymer coating equipment, dry it in an oven at 135°C for 4 minutes, and attach the PET release film after drying the solvent. into a finished product.

[0037] The present invention carries out multi-layer cross-linking reaction by adding different functional monomers and coordinating the main body colloid. The polymer after multi-layer cross-linking has excellent te...

Embodiment 2

[0041] Preparation of High Temperature Resistant Acrylic Protective Film

[0042] 1. Preparation of acrylate polymer: firstly put 0.4 parts of acrylic acid, 7 parts of methyl acrylate, 22 parts of butyl acrylate, 5 parts of hydroxyethyl acrylate, 3.6 parts of hydroxybutyl acrylate and 65 parts of ethyl acetate in a four-necked flask Heat and stir at medium temperature to 80°C, then dropwise add 0.1% azobisisobutylcyanide of the total mass of the reactants, react to 80°C and keep warm for 8 h, cool to 40°C and discharge;

[0043] 2. Coating film: Coat the prepared acrylate polymer on the PET substrate through the acrylate polymer coating equipment, dry it in an oven at 140°C for 4 minutes, and attach the PET release film after drying the solvent. into a finished product.

Embodiment 3

[0045] Preparation of High Temperature Resistant Acrylic Protective Film

[0046] 1. Preparation of acrylate polymer: firstly put 0.3 parts of acrylic acid, 9 parts of methyl acrylate, 18 parts of butyl acrylate, 6 parts of hydroxyethyl acrylate, 3.4 parts of hydroxybutyl acrylate and 58 parts of ethyl acetate in a four-necked flask Heat and stir at medium temperature to 80°C, then dropwise add 0.1% azobisisobutylcyanide of the total mass of the reactants, react to 80°C and keep warm for 8 h, cool to 40°C and discharge;

[0047] 2. Coating film: Coat the prepared acrylate polymer on the PET substrate through acrylate polymer coating equipment, dry it in an oven at 130°C for 5 minutes, and attach a PET release film after drying the solvent. into a finished product.

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Abstract

The invention discloses a high-temperature-resistant acrylate protective film. The protective film comprises an acrylate pressure-sensitive adhesive layer composed of an acrylate polymer, and furthercomprises a PET release film and a PET substrate respectively arranged on both sides of the acrylate pressure-sensitive adhesive layer. The acrylate polymer is prepared from 0.3-0.5 part of acrylic acid, 6-10 parts of methyl acrylate, 18-24 parts of butyl acrylate, 3-6 parts of hydroxyethyl acrylate, 3.2-3.8 parts of hydroxybutyl acrylate, 56-65 parts of ethyl acetate and azobisisobutyronitrile through polymerization. The protective film prepared in the invention has the advantages of low adhesion, no re-sticking behavior, low pollution to a protected substrate and high adhesion after a high-temperature plating link, so the yield of a metal oxide film is improved and processing cost is lowered. When a coating device disclosed in the invention is used for coating of an acrylate polymer, theuniform distribution of a pressure-sensitive adhesive is ensured, the drying speed of the pressure-sensitive adhesive is increased, and production efficiency is effectively improved.

Description

technical field [0001] The invention relates to the technical field of metal protective films, in particular to a high-temperature-resistant acrylate protective film, and discloses acrylate polymer coating equipment used in the preparation process. Background technique [0002] Metal oxide films are mainly used on the screens of electronic products such as mobile phones and computers. Among them, nano-indium tin metal oxides can cut off harmful electronic radiation, ultraviolet rays and far infrared rays because of their good conductivity and transparency. It is usually sprayed on glass, plastic and electronic display screens as a transparent conductive film to reduce harmful electronic radiation, ultraviolet rays and far infrared rays. [0003] In the existing film manufacturing process, it is necessary to protect the substrate to be processed to prevent the processed substrate from being baked at high temperature and scratched by the processing machine during the processin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/25C09J7/38C09J133/08B05B15/50B05C5/02B05C11/02B05C11/10B05C13/02B05C15/00B05D3/04C08F220/18C08F220/14C08F220/20
CPCC09J7/255C09J7/385C09J133/066B05C15/00B05C5/027B05C13/02B05C11/028B05C11/1039B05B15/50B05D3/0413C08F220/18C09J2467/006C09J2433/00C09J2467/005C09J2301/122
Inventor 张欢王小莉梁明月
Owner 南京五人光学薄膜有限公司