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Anti-solvent vinyl polymer with multilayer structure, synthetic method thereof and applications thereof

A vinyl polymer and synthesis method technology, applied in the field of printing, can solve the problems of poor solvent resistance and printing resistance, large developing latitude, etc., and achieve strong printing resistance, large developing latitude, and good storage stability. Effect

Active Publication Date: 2014-06-25
LUCKY HUAGUANG GRAPHICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the shortcomings of poor solvent resistance and printing resistance of thermal plates in the existing thermal plate technology, especially when using UV inks, to provide a brand new solvent-resistant type with multi-layer structure. Vinyl polymer and its synthesis method, the polymer has the characteristics of high sensitivity, good storage stability, large development latitude, especially good abrasion resistance and high printing durability when applied to heat-sensitive CTP plates

Method used

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  • Anti-solvent vinyl polymer with multilayer structure, synthetic method thereof and applications thereof
  • Anti-solvent vinyl polymer with multilayer structure, synthetic method thereof and applications thereof
  • Anti-solvent vinyl polymer with multilayer structure, synthetic method thereof and applications thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Example 1 (emulsion particles 01)

[0035] Add 250 g of isopropanol, 150 g of deionized water, 25 g of N, N-dimethylformamide, 15 g of methyl acrylate, and 5 g of dioctylsuccinate into a 1000 ml three-necked flask equipped with a stirrer, a reflux tube, and a dropping funnel. Acid sodium, 1.2 g AIBN (azobisisobutyronitrile), stir evenly, and use a hot water bath to heat to 80 ° C, dropwise add 29 g of N- (4-acetoxyphenyl) maleimide, 25 g of 3- Acrylonitrile, 6 g of methacrylic acid, 0.8 g of AIBN (azobisisobutyronitrile) were dissolved in a mixed solution of 250 g of isopropanol, and the addition was completed dropwise in 2 hours. The reaction was completed after 10 hours at constant temperature.

[0036] The solid content is 18.3%, the weight average molecular weight is 25000, and the number average molecular weight is 2500.

Embodiment 2

[0037] Example 2 (emulsion particles 02)

[0038] Add 250 g of isopropanol, 150 g of deionized water, 15 g of N,N-dimethylformamide, 20 g of methyl acrylate, and 5 g of dioctylsuccinate into a 1000 ml three-necked flask equipped with a stirrer, a reflux tube, and a dropping funnel. Acid sodium, 1.2 g AIBN (azobisisobutyronitrile), stir evenly, and use a hot water bath to heat to 80 ° C, dropwise add 31 g of N-(4-sulfonamidobenzene) maleimide, 30 g of 3- Acrylonitrile, 4 g of methacrylic acid, 0.8 g of AIBN (azobisisobutyronitrile) were dissolved in a mixed solution of 250 g of isopropanol, and the addition was completed dropwise in 1.5 hours. The reaction was completed after 9 hours at constant temperature.

[0039] The solid content is 16.1%, the weight average molecular weight is 32000, and the number average molecular weight is 2300.

Embodiment 3

[0040] Example 3 (emulsion particles 03)

[0041]In a 1000ml three-necked flask equipped with a stirrer, a reflux tube, and a dropping funnel, add 250 g of isopropanol, 150 g of deionized water, 30 g of N-(4-hydroxybenzene) methacrylamide, 10 g of methyl acrylate, 5 g Dioctyl sodium succinate, 1.2 g AIBN (azobisisobutyronitrile), stir evenly, and use a hot water bath to heat to 80 ° C, dropwise add 25 g N-(4-acetoxyphenyl) maleimide Amine, 30g of acrylonitrile, 5g of methacrylic acid, and 0.8g of AIBN (azobisisobutyronitrile) were dissolved in a mixed solution of 250g of isopropanol, and the addition was completed dropwise in 2 hours. The reaction was completed after 10 hours at constant temperature.

[0042] The solid content is 14.2%, the weight average molecular weight is 30000, and the number average molecular weight is 2100.

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Abstract

The invention discloses anti-solvent vinyl polymer with a multilayer structure, a synthetic method thereof and applications thereof. The polymer is synthesized by adoption of a method of core-shell emulsion copolymerization. The polymer is vinyl multipolymer having structure units as follows: an amide type structure unit with alkaline solubility, a maleimide type structure unit with alkaline solubility, an acrylate type structure unit, an acrylonitrile type structure unit and an olefin acid type structure unit. The polymer is suitable for manufacturing thermosensitive positive-image CTP plates and can allow the plates to have characteristics of high sensitivity, good storage stability, large latitude of development, good wear resistance and high pressrun. In addition, coatings of the plates are high in resistance to chemicals, and the plates are suitable for UV printing ink printing.

Description

technical field [0001] The invention belongs to the technical field of printing, and in particular relates to a solvent-resistant vinyl polymer with a multilayer structure, a synthesis method and application thereof. Background technique [0002] The printing principle of the lithographic plate is to absorb ink through the coating material on the upper part of the plate, and absorb water in the blank part to achieve the purpose of repelling water transfer printing ink. Lithographic printing technology has moved from traditional laser phototypesetting film copying PS plate technology to computer-to-plate technology (CTP technology for short), and CTP plate materials are gradually becoming popular. There are many types of CTP plates, and the more popular ones include silver salt diffusion CTP plates, UV-CTP plates, purple laser polymerization CTP plates, thermal CTP plates, etc. Among them, the most widely used is thermal CTP plates. At present, further improving the perform...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F222/40C08F220/50C08F220/06C08F220/14C08F220/58C08F220/44C08F220/18C08F2/24G03F7/004
Inventor 张林孔祥丽高峰
Owner LUCKY HUAGUANG GRAPHICS
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