Acrylic resin polymer with anti-sag effect and production method thereof

An acrylic resin and polymer technology, used in polyurea/polyurethane coatings, coatings, etc., can solve the problems of adverse effects on the appearance of the coating film, reduce the gloss and vividness of the coating film, and improve the anti-sag performance, control Disadvantages of sagging and the effect of solving sagging problems

Active Publication Date: 2016-01-20
JIANGSU RONGCHANG NEW MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these anti-sagging additives remain in the coating after the coating film is dried, which will reduce the gloss and sharpness of the coating film, and cause adverse effects on the appearance of the coating film.

Method used

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  • Acrylic resin polymer with anti-sag effect and production method thereof
  • Acrylic resin polymer with anti-sag effect and production method thereof
  • Acrylic resin polymer with anti-sag effect and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Synthesis of Hydroxy-Acrylic Resin Polymers

[0046] (1) In a 1000ml four-neck glass flask equipped with an electric stirrer, reflux condenser and thermometer, add 365g of xylene, add 174.16g of toluene diisocyanate, control the temperature at 50°C, add dropwise 59.11g of n-propylamine for 1 hour Continue to control the temperature at 50°C, add 131 propylene hydroxypropyl ester dropwise, drop it at a constant speed for 2 hours, keep it at 50°C for 2 hours after the drop, filter and discharge the material, and prepare the preform with amide bond and carbon-carbon double bond. Polymer spare.

[0047] (2) In a 2000ml four-necked glass flask equipped with an electric stirrer, a reflux condenser and a thermometer, add 300g of xylene, raise the temperature to 120°C-140°C, and add dropwise 100g of methyl methacrylate, A mixed solution of 120g n-butyl acrylate, 130g hydroxypropyl acrylate, 200g styrene and 10g dibenzoyl peroxide. At the same time, 100 g of the prepolymer solu...

Embodiment 2

[0049] Synthesis of Hydroxy-Acrylic Resin Polymers

[0050] Toluene diisocyanate is replaced with diphenylmethane diisocyanate, and the reaction device, reactant, operation method and steps are the same as in Example 1.

Embodiment 3

[0052] Synthesis of Hydroxy-Acrylic Resin Polymers

[0053] Replacing n-propylamine with cyclohexylamine, the reaction device, operation method and steps are the same as in Example 1.

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PUM

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Abstract

The invention relates to an acrylic resin polymer with an anti-sagging effect. The acrylic resin polymer is a high-molecular polymer containing an amide bond on a main chain and a hydroxyl functional group on a side chain. The hydrogen-bond interaction between acrylic acid molecular chains can be enhanced due to existence of the amide bond on the main chain, so that the anti-sagging performance of the acrylic resin polymer is obviously improved. The invention also relates to a coating composition employing the acrylic resin polymer as a main film-forming matter.

Description

technical field [0001] The present invention relates to an acrylic resin polymer with anti-sag effect. The acrylic resin polymer is a high molecular polymer with amide bonds on the main chain and hydroxyl functional groups on the side chains. The existence of the amide bond on the main chain can strengthen the hydrogen bond between the acrylic acid molecular chains, and obviously improve the anti-sag performance of the acrylic resin polymer. The present invention also relates to a coating composition using the acrylic resin polymer as the main film-forming substance. Background technique [0002] During the coating spraying and drying process, special attention should be paid to controlling the sagging of the paint film for medium and high solid content coating systems. During the construction process of the coating, there is a problem of sagging. On the one hand, the reason is that the wet film is too thick and the viscosity is too low during construction; The viscosity ...

Claims

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Application Information

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IPC IPC(8): C08F283/00C08F220/14C08F220/18C08F220/28C08F212/08C08G18/67C08G18/38C09D175/04
Inventor 常春陈群周树军黄顺道
Owner JIANGSU RONGCHANG NEW MATERIAL TECH
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