Saturated polyester resin wide in solubility and excellent in pigment dispersibility as well as preparation method of saturated polyester resin

Abstract

The invention relates to saturated polyester resin wide in solubility and excellent in pigment dispersibility. The saturated polyester resin is characterized by comprising the following components: glycidyl tertiary carboxylic ester, glycerol, phthalic anhydride, functional auxiliaries, an antioxidant and dimethylbenzene. According to a universal color paste of a coating prepared by the resin provided by the invention, the problem of more varieties of paints, more colors, more color pastes ground, large stock, low production efficiency and high error rate, the problem that color flooding and dazzling of the colored paint easily appear and particularly the problem of insufficient blackness when carbon black slurry is ground are solved. One resin is ground to various colored universal color pastes and the same color paste can be used on different types of paints well, so that the market using demand is satisfied.

Description

technical field [0001] The invention belongs to the technical field of saturated polyester resins, and in particular relates to a saturated polyester resin with wide compatibility and good dispersibility of pigments and a preparation method thereof. Background technique [0002] The field of modern coatings is developing rapidly and is widely used in various industries. Coatings provide protection and decoration to the surface of various workpieces. It is an indispensable means of coating the surface of workpieces, and it makes our surroundings colorful. [0003] Due to the different materials, shapes, sizes, uses, and use requirements of various workpieces, the conditions, requirements, and processes of coating are different, and the types of coatings used are also different. There are single-component, two-component Composition, high-temperature baking, etc., the colors are also various. The traditional method of paint is to use the resin of this type of paint to grind th...

AI Technical Summary

Problems solved by technology

[0003] Due to the different materials, shapes, sizes, uses, and use requirements of various workpieces, the conditions, requirements, and processes of coating are different, and the types of coatings used are also different. There are single-component, two-component Composition, high-temperature baking, etc., the colors are also various. The traditional method of paint is to use the resin of this type of paint to grind the color paste for each type of paint. It is used on this type of paint and cannot be mixed. There are many types of paints and colors, and there are many color pastes for grinding, resulting in large inventory, low production efficiency, and high error rate.

[0004] The main reason is that the types of resins used for different paints are different, and the compatibility between them is different. When mixing different color pastes, there will be problems of floating and blooming.

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