Modified full acrylic ester emulsion

An acrylate and amino acrylate technology, applied in the field of full acrylate emulsion, can solve the problems of water resistance, scrub resistance, electrolyte stability, low temperature stability, insufficient pigment and filler bearing capacity, etc., to ensure storage stability performance, The effect of improving the bearing capacity and reducing the production cost

Inactive Publication Date: 2004-03-17
江苏日出化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the all-acrylic emulsion widely used in China is mainly composed of (meth)acrylate, (meth)acrylic acid, emulsifier, initiator, PH regulator and water, and has water resistance, scrub resistance and electrolyte stability. The obvious deficiencies in performance, low temperature stability and loading capacity of pigments and fillers

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0008] Example 1: The emulsion is prepared in a reactor equipped with an electric stirrer, a shell and tube condenser and a thermometer. Firstly, it is composed as follows: methyl methacrylate 20 (weight percent, the same below), butyl acrylate 18, methacrylic acid 0.5, dimethylaminoethyl methacrylate 0.5, seed emulsion 10, sulfosuccinic acid Mixture 0.3, nonylphenol ethoxylate 0.5, sodium allyl hydroxypropyl sulfonate 0.2, sodium bicarbonate 0.1, potassium persulfate 0.2, deionized water 49.7, add the monomer with part of the emulsifier and water to the emulsifier Medium emulsification for later use, then add the remaining emulsifier, water, seed emulsion, and pH regulator into the reactor, and evenly add the emulsifying monomer and initiator solution into the reactor within 3 hours at a certain temperature, keep the temperature for 1 hour after feeding, and finally Cool down and neutralize the discharge with ammonia water.

example 2

[0009] Example two: only change the composition and content as follows: methyl methacrylate 22, butyl acrylate 17, methacrylic acid 0.5, diethylaminoethyl methacrylate 0.5, seed emulsion 10, sulfosuccinic acid mixture 0.3 , nonylphenol polyoxyethylene ether 0.5, allyl hydroxypropyl sodium sulfonate 0.2, sodium bicarbonate 0.1, potassium persulfate 0.2, deionized water 48.7. The operation process is the same as above.

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PUM

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Abstract

The acrylate emulsion modified with acrylic acid monomer containing amino ester and seed emulsion containing epoxy group has improved cohesion to base material and thus greatly raised water resistance and wash fastness. Using the anionic and non-ionic emulsifier with olefine group makes the emulsion possess greatly raised electrolyte stability and low temperature stability and further raised water resistance. Furthermore, the emulsion with raised flowability and low temperature stability makes it possible to reduce the amount of glycol, propylene glycol and other water soluble solvent and thus reduce VOC in preparing emulsion paint, and this is favorable to protecting environment and saving energy. The emulsion is used in emulsion paint for outer wall.

Description

technical field [0001] The invention relates to a full acrylate copolymer emulsion, in particular to a full acrylate emulsion modified by an amino acrylate monomer and a seed emulsion containing epoxy acrylate. Background technique [0002] All-acrylic copolymer emulsions are mainly used for exterior wall latex coatings. At present, the all-acrylic emulsion widely used in China is mainly composed of (meth)acrylate, (meth)acrylic acid, emulsifier, initiator, PH regulator and water, and has water resistance, scrub resistance and electrolyte stability. There are obvious deficiencies in performance, low temperature stability and loading capacity of pigments and fillers. Contents of the invention [0003] The purpose of the present invention is to overcome the deficiencies in the prior art, to provide a water-resistant and scrub-resistant performance of the exterior wall latex coating can be greatly improved, while the electrolyte stability, low-temperature stability and pigme...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F2/24C08F20/34
Inventor 肖雪平
Owner 江苏日出化工有限公司
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