High-solid multifunctional quick-drying intermediate coating composition and purpose thereof

A multi-functional, fast-drying technology used in coatings to solve problems such as poor adhesion, slow initial drying of intermediate coatings, and low gloss
CN109535977AActive Publication Date: 2019-03-29NIPPON PAINT CHINA
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
NIPPON PAINT CHINA
Publication Date
2019-03-29

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Abstract

The invention discloses a high-solid multifunctional quick-drying intermediate coating composition. The composition comprises the following components in parts by weight: an intermediate coating comprises the following components in parts by weight: 25-40 parts of acrylic resin, 0.3-1 part of a leveling agent, 0.2-2 parts of a dispersing agent, 5-15 parts of a pigment, 35-50 parts of a functionalfiller, 0.2-2 parts of an anti-settling agent, 10-15 parts of a first solvent, 0.2-0.5 parts of a storage stabilizer; and a curing agent comprises the following components in parts by weight: 40 to 60parts of isocyanate, 40 to 60 parts of a second solvent; or the curing agent comprises the following components in parts by weight: 40 to 60 parts of isocyanate, 40 to 60 parts of the second solvent,and 0.01-1 part of a water-removal additive. The invention also discloses a purpose of the high-solid multifunctional quick-drying intermediate coating composition as an automotive paint. The high-solid multifunctional quick-drying intermediate coating composition has good workability and paint film, and has high production efficiency and low VOC.
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Description

technical field

[0001] The invention relates to the technical field of coatings, in particular to a multifunctional fast-drying intermediate coating composition with high solid content and its application. Background technique

[0002] With the rapid development of China's economy, environmental problems have become increasingly prominent, and people's calls for environmental protection are also increasing. To this end, in recent years, local governments have successively issued environmental regulations to regulate the VOC emissions of paints during the coating process. Accordingly, the development direction of automotive refinish paint is high solid content and water-based. According to the experience of foreign developed countries, high solid content is a more reasonable choice for automotive repair primers. According to the current EU standard, the VOC limit of automotive refinish paint is 540g / L, which is also an important reference for local governments in China to f...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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