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Water soluble alkyd resin solution and water-soluble alcohol acid amino baking varnish

A technology of alkyd resin and alkyd amino, applied in the field of paint, can solve the problems of poor gloss and distinctness of image, high curing temperature, and low curing temperature of the paint film, and achieve excellent appearance, distinctness of image and fullness Excellent, sharper and fuller effects

Active Publication Date: 2009-08-12
广东鲸鲨化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] An object of the present invention is to provide a low curing temperature and short time for overcoming the defects of high curing temperature and long time for the current water-soluble alkyd or polyester amino drying paint, as well as poor gloss and distinct image of the paint film. Water-soluble alkyd resin solution

Method used

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  • Water soluble alkyd resin solution and water-soluble alcohol acid amino baking varnish

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A water-soluble alkyd resin solution, its weight percent composition is: castor oil 18.33%, benzoic acid 3.13%, phthalic anhydride 19.20%, trimellitic anhydride 6.16%, neopentyl glycol 4.29%, dimethylol propionic acid 3.94%, pentaerythritol 11.45%, propylene glycol methyl ether 10.08%, N,N-dimethylethanolamine 6.32% and water 17.10%;

[0020] The above-mentioned raw materials are prepared through the following steps: (1) Adding castor oil, benzoic acid, phthalic anhydride, trimellitic anhydride, neopentyl glycol, dimethylol propionic acid and pentaerythritol in the prescribed amount, and then raising the temperature for esterification; (2) raising the temperature to 160-175 ℃ for 1.0~1.5 hours without water separator reflux reaction; (3) add xylene, its addition is 3~6% of raw material total amount, be warming up to 175~180 ℃ of insulation reflux water diversion 1.5~2 hours; (4 ) to 190-195°C for reflux and water separation until the acid value is less than 65 mgKOH / g; ...

Embodiment 2

[0023] A water-soluble alkyd amino drying varnish varnish, which is composed of 65.93% water-soluble alkyd resin solution, 1.00% propylene glycol methyl ether, 17.14% CYMEL-303 amino resin, and 0.10% BYK-020 defoamer , BYK-307 leveling agent 0.05%, BYK-346 leveling agent 0.10% and water 15.68%;

[0024] The above-mentioned raw materials are mixed to obtain the varnish of the water-soluble alkyd amino drying paint.

Embodiment 3

[0026] A white varnish of water-soluble alkyd amino drying varnish, which is composed by weight percentage: 39.29% of water-soluble alkyd resin solution, 4.00% of propylene glycol methyl ether, 10.00% of CYMEL-303 amino resin, and 25.00% of pigment rutile titanium dioxide %, BYK-020 defoamer 0.10%, BYK-307 leveling agent 0.05%, BYK-190 dispersant 0.50%, BYK-346 leveling agent 0.10% and water 20.96%;

[0027] Grinding the water-soluble alkyd resin solution, pigments and additives to a fineness of ≤20 microns and then adding other raw materials in the formula to obtain the white gloss paint of the water-soluble alkyd amino drying paint.

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Abstract

The invention discloses a water soluble alkyd resin solution and water soluble alkyd amino baking finish. The water soluble alkyd amino baking finish takes the water soluble alkyd resin solution as a base material. The water soluble alkyd resin solution comprises the following components by weight percentage: 14 to 18.8 percent of castor oil, 2.3 to 4.4 percent of benzoic acid, 17.3 to 19.5 percent of benzene anhydride, 0 to 6.5 percent of trimellitic anhydride, 3.7 to 5.8 percent of neopentylene glycol, 3.5 to 10.8 percent of dihydroxymethyl propaneoic acid, 8 to 12 percent of pentaerythrite, 9.0 to 11.5 percent of cosolvent, 4.0 to 6.5 percent of neutralizer and 16.5 to 20.0 percent of water. The water soluble alkyd amino baking finish comprises the following components by weight percentage: 35 to 70 percent of water soluble alkyd resin solution, 0 to 30 percent of pigment, 0.2 to 1.5 percent of additive, 10 to 20 percent of amino resin, 0 to 5 percent of cosolvent and 15 to 25 percent of water.

Description

technical field [0001] The invention relates to the field of paints, in particular to a water-soluble alkyd resin solution and a water-soluble alkyd amino drying paint containing the water-soluble alkyd resin solution. Background technique [0002] Amino drying coatings made of amino resins and alkyd resins are currently one of the most widely used coatings in the field of industrial coatings. The coating film formed by it has higher hardness and gloss, acid and alkali resistance, water resistance and weather resistance are obviously superior to alkyd coatings, and it can be operated in an assembly line and is convenient for construction. [0003] At present, my country's amino drying coatings occupy an important position in light industry, home appliances, automobiles and machinery industries. However, traditional amino drying coatings are basically solvent-based, and a large amount of toxic solvents volatilize during the spraying and drying process, which not only deterio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/00C08G63/12C08G63/127C08J3/03C09D167/00
Inventor 张远召梁和锦
Owner 广东鲸鲨化工有限公司
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