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A kind of glycidyl methacrylate modified hydroxyacrylic acid dispersion and its synthesis process

A technology of glycidyl ester and methacrylic acid, applied in the field of materials, can solve problems such as large cost, and achieve the effects of less VOC content, excellent performance, high solid content and hydroxyl value

Active Publication Date: 2020-01-31
上海元邦化工制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the hydroxy acrylic dispersions on the market are mostly single hydroxyl groups, and the hydroxyl groups are mainly introduced by acrylate monomers with hydroxyl groups. However, in some special industrial fields, higher hydroxyl content is often required. If the introduction of hydroxyl groups is only based on monohydroxyl acrylate monomers, it will inevitably increase the cost. Grafting of special cheap monomers to introduce hydroxyl groups has become an important means to solve this problem.

Method used

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  • A kind of glycidyl methacrylate modified hydroxyacrylic acid dispersion and its synthesis process
  • A kind of glycidyl methacrylate modified hydroxyacrylic acid dispersion and its synthesis process
  • A kind of glycidyl methacrylate modified hydroxyacrylic acid dispersion and its synthesis process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Mix 3g of glycidyl methacrylate, 1.5g of m-chloroperoxybenzoic acid, 2.0g of ethylene glycol butyl ether, 10g of methyl methacrylate, 10g of butyl acrylate, and 10g of hydroxyethyl methacrylate, and heat to React at 50°C for 1.0h, then raise the temperature to 135°C and continue to react for 1h, then cool down to 80°C, add an appropriate amount of N,N dimethylethanolamine to neutralize, add an appropriate amount of deionized water to stir and disperse for 1-2h, and then discharge. The hydroxyacrylic acid dispersion modified by glycidyl methacrylate (hereinafter referred to as product A) was obtained.

Embodiment 2

[0018] Mix 5g of glycidyl methacrylate, 2.5g of m-chloroperoxybenzoic acid, 3.0g of propylene glycol butyl ether, 18g of methyl methacrylate, and 22g of methyl acrylate, heat to 60°C for 0.5h and then heat up to 120°C After continuing to react for 2 hours, lower the temperature to 70°C, add an appropriate amount of triethylamine to neutralize, add an appropriate amount of deionized water to stir and disperse for 1-2 hours, and discharge the material to obtain the glycidyl methacrylate modified hydroxyl group Acrylic dispersion (hereinafter referred to as product B).

Embodiment 3

[0020] Mix 3g of glycidyl methacrylate, 1.5g of m-chloroperoxybenzoic acid, 2.0g of ethylene glycol butyl ether, 10g of methyl methacrylate, 10g of butyl acrylate, and 10g of hydroxyethyl methacrylate, and heat directly Continue to react at 135°C for 1 hour, then lower the temperature to 80°C, add an appropriate amount of N,N dimethylethanolamine to neutralize, add an appropriate amount of deionized water to stir and disperse for 1-2 hours, and discharge to obtain product C.

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Abstract

The invention relates to a glycidyl methacrylate modified hydroxy acrylate dispersion and a new synthesis technology thereof. The synthesis technology comprises the following steps: evenly mixing 3-5parts of glycidyl methacrylate, 1.5-2.5 parts of peracid, 2-3 parts of cosolvent and 30-40 parts of acrylate monomers, heating up to 50-60 DEG C, carrying out a reaction for 0.5-1.0h, then heating upto 120-135 DEG C, and continuously reacting for 1-2h; cooling to 70-80 DEG C, adding a neutralizing agent, adding deionized water, stirring and dispersing for 1-2h, and discharging to obtain the glycidyl methacrylate modified hydroxy acrylic dispersion.

Description

technical field [0001] The invention belongs to the field of materials, in particular to a hydroxyacrylic acid dispersion modified by glycidyl methacrylate and a synthesis process thereof. Background technique [0002] The water-based two-component polyurethane is mainly formed by curing and cross-linking the hydroxyl functional group in the water-based hydroxyacrylic dispersion and the hydroxyl reactant water-based polyisocyanate curing agent. Most of the hydroxy acrylic dispersions on the market are mostly single hydroxyl groups, and the hydroxyl groups are mainly introduced by acrylate monomers with hydroxyl groups. However, in some special industrial fields, higher hydroxyl content is often required. If the hydroxyl group is only introduced by a single-hydroxy acrylate monomer, it will inevitably increase the cost. Grafting the introduction of hydroxyl groups through special cheap monomers has become an important means to solve this problem. The introduction of epoxy gr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F220/14C08F220/18C08F220/20C08F220/32C08F4/34C09D175/04
CPCC08F4/34C08F220/14C08F220/18C08F220/1804C08F220/20C09D175/04C08F220/325
Inventor 陆陈杰王元有徐洁陈锁金金党琴黄德奇舒适
Owner 上海元邦化工制造有限公司
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