Automotive waterborne floating-coat coating and preparation method thereof

A water-based, automotive technology, applied in the field of coatings, which can solve problems such as patented technology or lack of technical documents

Inactive Publication Date: 2016-07-13
SHANGHAI DAZHONG ALLIED AUTO REFITTING
View PDF5 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] With the development of science and technology, in the supporting coating of the automobile body, the primer has been completely water-based. Although the

Method used

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
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Automotive waterborne floating-coat coating and preparation method thereof
  • Automotive waterborne floating-coat coating and preparation method thereof
  • Automotive waterborne floating-coat coating and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A water-based intermediate coating for automobiles, which includes component A and component B, wherein component A includes: 20% of water-based polyester resin, 25% of water-based epoxy resin, and 20% of water-soluble pigment in parts by weight , talcum powder 3%, calcium carbonate 15%, water-based polyurethane defoamer 0.1%, water-based methyl etherified amino resin 0.4%, fumed silica anti-settling agent 0.2%, leveling agent 0.2%, wetting agent 0.7%, Anti-flash rust agent 1.2%, deionized water 14.2%; B component is a blocked water-based isocyanate curing agent; the weight ratio of A component and B component is 11:1.

[0027] Wherein, in the water-based polyester resin, according to parts by weight, including:

[0028]

[0029] Among them, the leveling agent is BYK-333, the wetting agent is BYK-345, and the anti-flash rust agent is CORV609B.

[0030] The preparation method of the above-mentioned automobile water-based intermediate coating is: in the feed tank unde...

Embodiment 2

[0033] A water-based intermediate coating for automobiles, which includes component A and component B, wherein component A includes: 25% of water-based polyester resin, 30% of water-based epoxy resin, and 15% of water-soluble pigment in parts by weight , talcum powder 5%, calcium carbonate 18%, water-based polyurethane defoamer 0.2%, water-based methyl etherified amino resin 0.5%, fumed silica anti-settling agent 0.3%, leveling agent 0.4%, wetting agent 1%, Anti-flash rust agent 1%, deionized water 3.6%; B component is a blocked water-based isocyanate curing agent; the weight ratio of A component and B component is 13:1.

[0034] Wherein, in the water-based polyester resin, according to parts by weight, including:

[0035]

[0036] Among them, the leveling agent is BYK-333, the wetting agent is BYK-348, and the anti-flash rust agent is CORB.

[0037] The preparation method of the above-mentioned automobile water-based intermediate coating is: in the feed tank under the pro...

Embodiment 3

[0040] A water-based intermediate coating for automobiles, which includes component A and component B, wherein component A includes: 30% of water-based polyester resin, 30% of water-based epoxy resin, and 15% of water-soluble pigment in parts by weight , talcum powder 3%, calcium carbonate 15%, water-based polyurethane defoamer 0.2%, water-based methyl etherified amino resin 0.5%, fumed silica anti-settling agent 0.5%, leveling agent 0.4%, wetting agent 1%, Anti-flash rust agent 1.5%, deionized water 0.7%; B component is a blocked water-based isocyanate curing agent; the weight ratio of A component and B component is 14:1.

[0041] Wherein, in the water-based polyester resin, according to parts by weight, including:

[0042]

[0043] Among them, the leveling agent is BYK-420, the wetting agent is BYK-345, and the anti-flash rust agent is CORB.

[0044] The preparation method of the above-mentioned automobile water-based intermediate coating is: in the feed tank under the pro...

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
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses an automotive waterborne floating-coat coating and a preparation method thereof. The automotive waterborne floating-coat coating is characterized by comprising a component A and a component B, wherein the component A comprises the following components in percentage by weight: 15%-35% of polyester resin, 25%-35% of epoxy resin, 15%-25% of a pigment, 3%-5% of talcum powder, 15%-25% of calcium carbonate, 0.1%-0.5% of a polyurethane defoaming agent, 0.3%-0.8% of etherified amino resin, 0.1%-0.5% of a fumed silica anti-settling agent, 0.1%-0.5% of a flatting agent, 0.5%-1.5% of a wetting agent, 1%-2% of a flash-rust inhibitor and the balance of deionized water; and the component B is a closed waterborne isocyanate curing agent. After an electro-deposition coating plate is coated with the automotive waterborne floating-coat coating and dried, a paint film presents an excellent smooth form, a paint film stripping phenomenon is not observed during adhesiveness testing of the paint film, and the hardness, tested by virtue of a pencil scratch hardness method, of the paint film is an level F or above.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to an automotive water-based intermediate coating and a preparation method thereof. Background technique [0002] Typical supporting coatings for automotive bodies include electrocoats, intermediate coats, base coats and clear coats. Intermediate coating, also known as surfacer, is a coating used between the automotive primer and topcoat. Its main function is to further fill and correct the primer-coated work surface and improve its flatness, so that the freshness of the topcoat can be improved. Reflection, fullness, gloss, etc. have been greatly improved. [0003] At present, in the supporting coatings of automobile bodies, water-based coatings have become an inevitable development trend. Compared with solvent-based coatings, water-based coatings can greatly reduce the use of volatile organic compounds, which can not only reduce environmental impact Pollution can also reduce the...

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
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C09D175/04C09D175/06C09D7/12C08G63/12
CPCC08G63/12C09D7/61C09D175/04C09D175/06C08L75/06C08L75/04C08L61/32C08K13/02C08K3/34C08K2003/265C08K3/36
Inventor 邢博邬奕申高峰徐东东张欢
Owner SHANGHAI DAZHONG ALLIED AUTO REFITTING
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap