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Water soluble acrylic resin and its prepn

A technology of water-soluble acrylic and acrylic resin, applied in application, coating, ink, etc., can solve the problem of coating hardness, smoothness, wear resistance and anti-adhesion that cannot meet the requirements of paper ink, varnish and water-based wood coating The use of high requirements, it is difficult to meet the high requirements of paper ink water-based wood coatings, it is difficult to meet the high requirements of paper inks, etc., to achieve excellent film-forming properties, good hardness, and increased hardness.

Inactive Publication Date: 2007-11-07
JIANGSU SANMU GROUP CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because it contains a large amount of strong hydrophilic carboxyl groups, the coating hardness after the formulated coating is dried and formed into a film is low, which can only reach HB, and the slipperiness, wear resistance and anti-adhesiveness are poor (the surface of the coating film is sticky at 40°C) , it is difficult to meet the high requirements of paper ink, varnish and water-based wood coating
[0003] The water-soluble acrylic acid disclosed in Chinese patents CN85104823 and CN87102540 also cannot meet the high requirements of paper ink, varnish and water-based wood coating in terms of coating hardness, smoothness, wear resistance and anti-sticking property.
[0004] Chinese patent CN91107054.0 discloses the water-soluble acrylic acid amino baking coating resin, also because contain a large amount of hydrophilic carboxyl groups on the molecular chain, cause the coating hardness after the coating coating of preparation is solidified, dry film formation, slipperiness, Poor abrasion resistance and anti-adhesiveness, it is difficult to meet the high requirements of paper ink, varnish and water-based wood coating
Since this patent only uses vinyl silane as a modifier, its slipperiness and wear resistance are still unsatisfactory
Secondly, the product still contains a certain amount of toxic and polluting organic solvents, and it is not a truly solvent-free environmentally friendly resin

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] 1. Synthesis of solvent-based silicone-modified acrylic resin: 10g butyl acrylate, 5g acrylic acid, 10g acrylic acid propyl silicone oil, 32g methyl methacrylate, 3g benzoyl peroxide, mix and stir to dissolve evenly, add drop material In the funnel, add 40g of butanol into a four-necked flask equipped with a stirrer, a condenser, a thermometer, a heater and a dropping funnel, heat up to the boiling point of the solution and reflux for 2 minutes, and start to drop the mixture in the bottom feeder for free radical In the polymerization reaction, the feed liquid is controlled to be dripped within 2-4 hours, and the temperature is controlled to keep the boiling point of the solution in the kettle (between 75-88° C.). After the dropping liquid is added dropwise, keep the solution boiling for 3 hours, add 0.5 g of initiator benzoyl peroxide, keep it warm for 3 hours, check the solid content, and when the conversion rate is above 99%, cool and filter for later use.

[0029] 2....

Embodiment 2

[0031]1. Synthesis of solvent-based silicone-modified acrylic resin: 15g butyl acrylate, 5g ethylene propoxy silicone oil, 28g methyl methacrylate, 2g hydroxyethyl acrylate, 7g acrylic acid, 3g benzoyl peroxide, mix and stir Dissolve evenly, add to the dropping funnel, add 40g of propylene glycol methyl ether into a four-neck flask equipped with a stirrer, condenser, thermometer, heater and dropping funnel, heat up to the boiling point of the solution and reflux for 2 minutes, and start dripping for free Based on the polymerization reaction, the feed liquid is controlled to be dripped within 2-4 hours, and the temperature is kept at the still point of the solution in the kettle (between 118-132°C). After the dropping liquid is added dropwise, keep the solution boiling for 3 hours, add 0.5 g of initiator benzoyl peroxide, keep it warm for 3 hours, check the solid content, and when the conversion rate is above 99%, cool and filter for later use.

[0032] 2. Preparation of water-...

Embodiment 3

[0034] 1. Synthesis of solvent-based silicone-modified acrylic resin: Mix 10g of butyl acrylate, 30g of styrene, 2g of vinyl silicone oil, 15g of acrylic acid, and 3g of benzoyl peroxide. Alcohol 15g, propylene glycol methyl ether 25g are added in the four-neck flask that stirrer, condenser, thermometer, heater and dropping funnel are housed, be warmed up to solution boiling point and reflux 2 minutes, start dripping and carry out radical polymerization reaction, control feed liquid in The dripping is completed within 2-4 hours, and the temperature is controlled to keep at the still point of the solution in the still (between 112-135° C.). After the dropping liquid is added dropwise, keep the solution boiling for 3 hours, add 0.5 g of initiator benzoyl peroxide, keep it warm for 3 hours, check the solid content, and when the conversion rate is above 99%, cool and filter for later use.

[0035] 2. Preparation of water-soluble silicone-modified acrylic resin: Add 100 g of solven...

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PUM

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Abstract

The present invention relates to one kind of water soluble acrylic resin for ink, polish oil and paint and its preparation process. The organic silicone oil modified acrylic resin is prepared with acrylic acid monomer 15-57 wt%, organic silicone oil with double bond 1-15 wt%, organic solvent 20-60 wt% and initiator 0.1-10 wt%, and through free radical solution polymerization at 60-160 deg.c to obtain organic silicone oil modified acrylic resin, adding neutralizing agent and water through stirring, distilling to eliminate organic solvent, further adding neutralizing agent and water to reach solid content of 20-60 wt%. The organic silicone oil modified acrylic resin has high vitrification point, low filming temperature, high water tolerance and other advantages.

Description

technical field [0001] The present invention is a supplement to the applicant's application number 200510122901.9 water-soluble acrylic resin and its preparation method, especially relates to a water-soluble acrylic resin used for paper ink, varnish and water-based wood coating and its preparation. Background technique [0002] With the increasingly stringent requirements for environmental protection, the development of water-soluble acrylic resin has been paid attention to. In the 200510122901.9 "Water-Soluble Acrylic Resin and Its Preparation" patent application, the applicant proposed to dissolve 20-60%wt of water-soluble acrylic resin obtained by free radical polymerization into 40-80%wt water to obtain organic solvent-free water-soluble acrylic resin. It not only retains the mechanical performance, protective performance and decorative performance of the paint prepared by solvent-based acrylic resin, but also has many advantages such as good leveling, high gloss, good ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F220/06C08G77/20C09D11/10C09D133/02
Inventor 谭征兵钟利刚董亮陈欢
Owner JIANGSU SANMU GROUP CORPORATION
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