Acrylic acid modified sulfonate-based water-reducible alkyd resins

A technology of alkyd resin and sulfonate, which is applied in the direction of coating, etc., can solve the problems of poor storage stability of acrylic modified water-based alkyd latex, difficulty in product quality control, low monomer conversion rate, etc., to improve storage stability and hydrolysis resistance, improved drying and weather resistance, and high solid content

Active Publication Date: 2011-06-08
SHANGHAI HUAYI FINE CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The acrylic-modified water-based alkyd latex prepared by this patent has poor storage stability, low monomer conversion rate, unpleasant smell, low gloss of the paint film, and difficult product quality control

Method used

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  • Acrylic acid modified sulfonate-based water-reducible alkyd resins
  • Acrylic acid modified sulfonate-based water-reducible alkyd resins
  • Acrylic acid modified sulfonate-based water-reducible alkyd resins

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022]Add 250.2 g of trimethylolpropane, 97.2 g of isophthalic acid, 32.2 g of 5-sodiosulfonic acid-isophthalic acid and 0.8 g of butyltin triisooctanoate into a reaction flask, and pass nitrogen gas for 10 to 20 minutes. Start heating up. When the temperature rises to 110-120°C, the material melts and starts to stir. Continue to raise the temperature to 180-200°C, and keep the reaction at this temperature until the acid value is 30mgKOH / g, then lower the temperature. When the temperature drops to 180-190°C, add 211.5g of linoleic acid, 25.6g of benzoic acid, 97.2g of isophthalic acid and 0.4g of butyltin triisooctoate, continue to heat up to 200-220°C, and keep it at this temperature Carry out the reaction until the acid value is 50 mgKOH / g, then lower the temperature. When the temperature drops to 150-160°C, add 20g of glycidyl methacrylate, continue the reaction until the acid value is 35mgKOH / g, then add 220g of ethylene glycol butyl ether to dilute the resin to obtain s...

Embodiment 2

[0025] Add 239.4g of trimethylolpropane, 109.7g of terephthalic acid, 32.2g of 5-sodiosulfonic acid-isophthalic acid and 0.8g of butyltin triisooctoate into a reaction flask, and pass nitrogen gas for 10 to 20 minutes. Start heating up. When the temperature rises to 110-120°C, the material melts and starts to stir. Continue to raise the temperature to 180-200°C, and keep the reaction at this temperature until the acid value is 30mgKOH / g, then lower the temperature. When the temperature drops to 180-190°C, add 244.8g of dehydrated castor oil fatty acid, 109.7g of terephthalic acid and 0.4g of butyltin triisooctanoate, continue to heat up to 200-220°C, and keep the reaction at this temperature until After the acid value is 50mgKOH / g, the temperature is lowered. When the temperature drops to 150-160°C, add 20g of glycidyl methacrylate, continue the reaction until the acid value is 35mgKOH / g, then add 234g of ethylene glycol butyl ether to dilute the resin to obtain sulfonate-ba...

Embodiment 3

[0028] Add 189.2g of trimethylolpropane, 98.5g of isophthalic acid, 32.2g of 5-sodiosulfonic acid-isophthalic acid and 0.8g of butyltin triisooctanoate into a reaction flask, and pass nitrogen gas for 10 to 20 minutes. Start heating up. When the temperature rises to 110-120°C, the material melts and starts to stir. Continue to raise the temperature to 180-200°C, and keep the reaction at this temperature until the acid value is 30mgKOH / g, then lower the temperature. When the temperature drops to 180-190°C, add 211.5g of soy oil, 25.6g of benzoic acid, 98.5g of isophthalic acid and 0.4g of butyltin triisooctoate, continue to heat up to 200-220°C, and keep at this temperature React, cool down after the acid value is 50mgKOH / g. When the temperature drops to 150-160°C, add 20g of glycidyl methacrylate, continue the reaction until the acid value is 35mgKOH / g, then add 212.5g of ethylene glycol butyl ether to dilute the resin to obtain sulfonate group Water reducible alkyd resin (...

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Abstract

The invention relates to an acrylic acid modified sulfonate-based water-reducible alkyd resin and preparing method thereof. The preparing method comprises the following steps that: dihydric alcohol or polyol, partial polybasic carboxylic acid or acid anhydrides and functional monomer containing the sulfonate-base are subjected to esterification till the acid value is qualified; vegetable oil fatty acid and residual polybasic carboxylic acid or acid anhydrides are added to continue the esterification till the acid value is qualified; glycidyl ester compound containing acrylic acid group is added to continue the esterification till the acid value is qualified; cosolvent is added to dilute; and then mixed liquor of acrylic acid monomers and initiator is added drop by drop; after the reactiontotally completes the acrylic acid modified sulfonate-based water-reducible alkyd resin can be obtained. The alkyd resin of the invention has the advantages of good water dilution, high solid content, excellent paint film water proofness after the resins are made into paint.

Description

technical field [0001] The invention relates to the specialty of resin synthesis in the field of chemical industry, in particular to a water-dilutable alkyd resin and a preparation method thereof, in particular to a method for introducing sulfonate groups into the alkyd resin molecular chain A water dilutable alkyd resin and a preparation method thereof are obtained. Background technique [0002] Alkyd resin is the earliest developed, largest and most widely used resin variety among synthetic resins for coatings. It is widely used in the decoration and protection of large outdoor steel structures and ships. Alkyd resin basically does not depend on petroleum products and has a unique price advantage; the components and properties of alkyd resin can be adjusted in a wide range, and resins with different properties can be obtained only by different polyols and polybasic acids; Changes in the ratio of alcohol to acid functionality can control the degree of branching. These char...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F290/06C08G63/688C08G63/676C08G63/49C09D151/08
Inventor 赵其中
Owner SHANGHAI HUAYI FINE CHEM CO LTD
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