Resin for correction fluid, chemical synthesis method thereof and correction fluid

A technology of chemical synthesis and correction fluid, which is applied in the field of materials, can solve problems such as delamination, correction fluid hardness not meeting the requirements, pen dragging phenomenon, etc., and achieve the effect of smooth reaction

Active Publication Date: 2016-05-11
SHANDONG SITO BIO TECHNOLOGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Commonly used correction fluids have defects such as hardness not meeting the requirements, unsmooth writing when writing on the coating after drying, pen dragging phenomenon, and delamination phenomenon after long-term storage.

Method used

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  • Resin for correction fluid, chemical synthesis method thereof and correction fluid

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preparation example Construction

[0025] refer to figure 1 , showing a flow chart of a chemical synthesis method for a resin used in correction fluid described in an embodiment of the present invention, by figure 1 It can be seen that the chemical synthesis method comprises the following steps:

[0026] In step 101, two or more of methyl methacrylate, butyl acrylate, isooctyl acrylate and hydroxyethyl acrylate are used as soft monomers, styrene is used as hard monomers, and azobisisobutyronitrile is used as a catalyst. Hexane is used as a solvent, and the first mixed monomer composed of the soft monomer, the hard monomer, the catalyst and the solvent is heated and refluxed to react to form a first mixed liquid.

[0027] In the first mixed monomer, the mass ratio of the methyl methacrylate to the styrene is 0.117-0.162, and the mass ratio of the butyl acrylate to the styrene is 0.157-0.244, so The mass ratio of the hydroxyethyl acrylate to the styrene is 0.08 to 0.139, the mass ratio of the isooctyl acrylate ...

Embodiment 1

[0046]Add 21 kilograms of methyl methacrylate, 44 kilograms of butyl acrylate, 109 kilograms of isooctyl acrylate, 180 kilograms of styrene, 500 kilograms of cyclohexane, and 3.8 kilograms of azobisisobutyronitrile in a 2000L reactor, and heat to 90 The reflux operation was carried out at about ℃, and the reaction was performed for 2 hours.

[0047] Slowly add 18 kg of methyl methacrylate, 40 kg of butyl acrylate, 101 kg of isooctyl acrylate, and 180 kg of styrene into the mixed monomers dropwise, and the dripping is completed within 2 hours.

[0048] Add 3 kg of azobisisobutyronitrile, heat to about 90°C for reflux operation, and react for 4 hours. After the reaction is completed, cool to 35-40°C and discharge to obtain the resin for correction fluid.

Embodiment 2

[0050] Add 22 kg of hydroxyethyl acrylate, 150 kg of isooctyl acrylate, 200 kg of styrene, 500 kg of cyclohexane, and 4.5 kg of azobisisobutyronitrile into a 2000L reactor, heat it to about 95°C for reflux operation, and react 1h.

[0051] Slowly add 20 kg of mixed monomers hydroxyethyl acrylate, 142 kg of isooctyl acrylate, and 217 kg of styrene mixed monomers, and drop them within 4 hours.

[0052] Add 4 kg of azobisisobutyronitrile, heat to about 95°C for reflux operation, and react for 3 hours. After the reaction is completed, cool to 30-35°C and discharge to obtain the resin for correction fluid.

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PUM

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Abstract

The invention provides a chemical synthesis method of resin for correction fluid, the resin for the correction fluid and the correction fluid. According to the method, two or more of methyl methacrylate, butyl acrylate, 2-ethylhexyl acrylate and hydroxyethyl acrylate serve as soft monomers, styrene serves as a hard monomer, azodiisobutyronitrile serves as a catalyst, cyclohexane serves as a solvent, heating reflux is carried out on a first mixed monomer composed of the soft monomers, the hard monomer, the catalyst and the solvent, a first mixed solution is generated through reaction, a second mixed monomer composed of the soft monomers and the hard monomer is slowly added into the first mixed solution dropwise, a second mixed solution is obtained through reaction, azodiisobutyronitrile is added into the second mixed solution, and the resin for the correction fluid is obtained through reaction. By controlling the dosage proportion of various reaction solvents and specific reaction conditions, the resin, with good adhesion and dispersity, of the correction fluid is prepared. Meanwhile, the method that the monomers are added in batches is adopted, and it is guaranteed that reaction is stably conducted.

Description

technical field [0001] The invention relates to the technical field of materials, in particular to a chemical synthesis method of a resin used in correction fluid, a resin used in correction fluid and a correction fluid. Background technique [0002] China is the first country in the world to invent and use correction fluid. As early as the Wei, Jin, Southern and Northern Dynasties, people began to use correction fluid to cover up and correct mistakes in writing. It wasn't until 1951 that American Betty Naismith Graham invented correction fluid. [0003] Correction fluid, also known as "correction fluid" and "correction fluid", is a common stationery commonly used in modern work and study. A high-quality correction fluid can make it easy for people to modify articles or documents, and can maintain the original format of the document. After modification, no trace of modification can be seen after copying, which brings great benefits to people's work and study. Great conven...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F212/08C08F220/14C08F220/18C08F220/28C09D10/00
CPCC09D10/00C08F212/08C08F220/1808C08F220/281C08F220/14C08F220/1804
Inventor 杨明军仝令华刘刚生
Owner SHANDONG SITO BIO TECHNOLOGY CO LTD
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