Baking automobile finish with high solid content and preparation method thereof

An automotive topcoat, high-solid technology, used in polyester coatings, coatings, etc., can solve the problems of long drying time, water-based intermediate coatings and water-based topcoats that have not been industrially applied, and achieve full paint film and natural exposure performance. Excellent, less organic solvent effect

Active Publication Date: 2013-02-20
ZHEJIANG GEELY AUTOMOBILE RES INST CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to meet environmental protection requirements, automotive coatings are developing towards water-based, high-solids and powder coatings, but the development of domestic water-based automotive coatings is not optimistic. The extension means that in order to use water-based coatings, the current coating line must be modified. Therefore, except that most of the primers are water-based, water-based intermediate coatings and water-based topcoats have not been industrialized.

Method used

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  • Baking automobile finish with high solid content and preparation method thereof

Examples

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Embodiment 1

[0040] Embodiment 1: prepare 1 ton of high-solid content drying automobile finish, at first take by weighing the acrylic resin 270Kg, 15% pigment phthalocyanine blue 150Kg, 9% of high-solid content drying automobile finish gross mass 27% 90Kg of xylene, 2Kg of 0.2% BYK-300, 4Kg of 0.4% BYK-110, 4Kg of 0.4% dibutyltin dilaurate, put all the raw materials into a high-speed mixer for pre-mixing, and pre-mix Good raw materials are pre-grinded and dispersed in a grinder; then weigh 190Kg of polyester resin, 190Kg of 19% amino resin, 90Kg of 9% xylene, and 0.2% BYK-300 is 2Kg, 0.4% BYK-110 is 4Kg, 0.4% dibutyltin dilaurate is 4Kg, mixed with the aforementioned ground and dispersed raw materials, mixed thoroughly, and filtered to obtain the desired one High solids drying automotive finish.

[0041] The implementation steps of embodiment 2 to embodiment 5 are as described in embodiment 1. The high-solid content drying automobile topcoat of 1 ton is produced, and the required raw mate...

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Abstract

Baking automobile finish with a high solid content and a preparation method thereof relate to an automobile coating composite which comprises the following components by weight: 65% of film-forming resin, 2% of additives, 18% of solvents, and 15% of pigments, wherein the film-forming resin comprises 20%-32% of acrylic resin, 15%-25% of polyester resin, and 15%-25% of amino resin; the solid content of the coating prepared by the invention is about 80%; the coating has less organic solvent; and environmental pollution is reduced. The preparation method can improve construction conditions and improve production efficiency, and the baking automobile finish can increase surface performance and chemical resistance of the automobile body.

Description

technical field [0001] The invention relates to an automobile coating composition, in particular to an automobile topcoat with high solid content and a preparation method thereof. Background technique [0002] In recent years, one of the most concerned topics for all mankind is environmental protection. With the rapid development of the automobile industry, the amount of automotive coatings is also increasing, and a large amount of VOC (volatile organic compounds) is causing increasingly serious pollution to the environment. Countries around the world have successively formulated relevant regulations to limit the use of VOC in paint. In order to meet environmental protection requirements, automotive coatings are developing towards water-based, high-solids and powder coatings, but the development of domestic water-based automotive coatings is not optimistic. The extension means that in order to use water-based coatings, the current coating line must be modified. Ther...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D133/00C09D167/00C09D161/20C09D7/12
Inventor 袁秀奎岳中英金建伟刘强马芳武李书福杨健赵福全
Owner ZHEJIANG GEELY AUTOMOBILE RES INST CO LTD
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