Water-based polyester resin for amino baking coating and synthesis device of water-based polyester resin

A water-based polyester resin and synthesis device technology, applied in the field of polyester resin, can solve the problems of lower synthesis efficiency of water-based polyester resin, poor performance of amino baking varnish, poor water resistance and gasoline resistance, etc., and achieve novel structure, The effect of reducing the working time and improving the water resistance and gasoline resistance

Inactive Publication Date: 2019-05-03
吕悦
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Since water-based polyester resins use water as a solvent and have low toxicity, water-based polyester resins have been used more and more widely. However, at present, water-based polyester resins still have poor curing conditions, low viscosity, poor water resistance and gasoline resistance. As for the poor problem, amino baking varnishes are attracting more and more attention at present, and their applications are becoming more and more extensive. There are also water-based polyester resins applied to amino baking varnishes on the market, but the applications

Method used

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  • Water-based polyester resin for amino baking coating and synthesis device of water-based polyester resin
  • Water-based polyester resin for amino baking coating and synthesis device of water-based polyester resin
  • Water-based polyester resin for amino baking coating and synthesis device of water-based polyester resin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] A water-based polyester resin for amino baking varnish, made of the following raw materials in parts by mass:

[0057] Neopentyl glycol: 410 parts;

[0058] Diethylene glycol: 210 parts;

[0059] Trimethylolpropane: 400 parts;

[0060] Glycidyl tertiary carbonate: 210 parts;

[0061] 1,4-cyclohexanedicarboxylic acid: 300 parts;

[0062] Phthalic anhydride: 430 parts;

[0063] Hexahydrophthalic anhydride: 290 parts;

[0064] Isophthalic acid: 260 parts;

[0065] Sodium isophthalic acid-5-sulfonate: 360 parts;

[0066] Sodium 1,4-butanediol-2-sulfonate: 370 parts;

[0067] Xylene: 80 parts;

[0068] Dibutyltin dilaurate: 1.5 parts;

[0069] Dimethylethanolamine: 100 parts;

[0070] Ethylene glycol monoethyl ether: 550 parts;

[0071] Acetone: 250 parts;

[0072] Deionized water: 3800 parts;

[0073] The synthetic technique of described aqueous polyester resin comprises the steps:

[0074] 1) First put phthalic anhydride, hexahydrophthalic anhydride, isophtha...

Embodiment 2

[0083] A water-based polyester resin for amino baking varnish, made of the following raw materials in parts by mass:

[0084] Neopentyl glycol: 415 parts;

[0085] Diethylene glycol: 205 parts;

[0086] Trimethylolpropane: 410 parts;

[0087] Glycidyl tertiary carbonate: 200 parts;

[0088] 1,4-cyclohexanedicarboxylic acid: 310 parts;

[0089] Phthalic anhydride: 420 parts;

[0090] Hexahydrophthalic anhydride: 295 parts;

[0091] Isophthalic acid: 250 parts;

[0092] Sodium isophthalic acid-5-sulfonate: 370 parts;

[0093] Sodium 1,4-butanediol-2-sulfonate: 360 parts;

[0094] Xylene: 90 parts;

[0095] Dibutyl tin diacetate: 2 parts;

[0096] Diethylethanolamine: 80 parts;

[0097] Propylene glycol monobutyl ether: 560 parts;

[0098] Butanone: 230 parts;

[0099] Deionized water: 3900 parts;

[0100] The synthetic technique of described aqueous polyester resin comprises the steps:

[0101] 1) First put phthalic anhydride, hexahydrophthalic anhydride, isophthal...

Embodiment 3

[0110] A water-based polyester resin for amino baking varnish, made of the following raw materials in parts by mass:

[0111] Neopentyl glycol: 420 parts;

[0112] Diethylene glycol: 200 parts;

[0113] Trimethylolpropane: 405 parts;

[0114] Glycidyl tertiary carbonate: 205 parts;

[0115] 1,4-cyclohexanedicarboxylic acid: 305 parts;

[0116] Phthalic anhydride: 425 parts;

[0117] Hexahydrophthalic anhydride: 300 parts;

[0118] Isophthalic acid: 255 parts;

[0119] Sodium isophthalic acid-5-sulfonate: 365 parts;

[0120] Sodium 1,4-butanediol-2-sulfonate: 365 parts;

[0121] Xylene: 100 parts;

[0122] Monobutyltin trichloride: 1.8 parts;

[0123] Dimethylethanolamine: 90 parts;

[0124] Propylene glycol methyl ether acetate: 555 parts;

[0125] Acetone: 240 parts;

[0126] Deionized water: 4000 parts;

[0127] The synthetic technique of described aqueous polyester resin comprises the steps:

[0128] 1) First put phthalic anhydride, hexahydrophthalic anhydride...

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Abstract

The invention discloses water-based polyester resin for an amino baking coating. The water-based polyester resin is prepared from the following raw materials in parts by weight: neopentyl glycol, diethylene glycol, trimethylolpropane, glycidyl tertiary carbonate, 1,4-cyclohexane dicarboxylic acid, phthalic anhydride, hexahydrophthalic anhydride, isophthalic acid, 5-sulfoisophthalic acid monosodiumsalt, 1,4-butanediol-2-sodium sulfonate, xylene, a catalyst, a neutralizer, a cosolvent, a solvent and deionized water. The invention further discloses a synthesis device for the water-based polyester resin for the amino baking coating. The monomer of the water-based polyester resin for the amino baking coating prepared by the preparation method has good performance, and performance of the aminobaking coating prepared from the water-based polyester resin provided by the invention is superior to performance of amino baking coatings prepared from common water-based polyester resin in the market. According to the synthesis method for the water-based polyester resin for the amino baking coating, heating rods and a spiral heating pipe can be simultaneously used for heating from inside and outside, heating efficiency is improved, and production efficiency of the whole water-based polyester resin is improved.

Description

technical field [0001] The invention belongs to the technical field of polyester resins, and in particular relates to a water-based polyester resin for amino baking varnish and a synthesis device thereof. Background technique [0002] Since water-based polyester resins use water as a solvent and have low toxicity, water-based polyester resins have been used more and more widely. However, at present, water-based polyester resins still have poor curing conditions, low viscosity, poor water resistance and gasoline resistance. As for the poor problem, amino baking varnishes are attracting more and more attention at present, and their applications are becoming more and more extensive. There are also water-based polyester resins applied to amino baking varnishes on the market, but the applications are less, and amino baking varnishes are obtained. The performance is not very good. In order to expand the application range of water-based polyester resins and obtain amino baking varn...

Claims

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Application Information

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IPC IPC(8): C08G63/688C08G63/78C09D167/02
Inventor 吕悦
Owner 吕悦
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