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Multi-layer coating process to achieve a highly saturated color appearance on a vehicle

A coating and coating technology, which is applied in the field of coating with multi-layer coating, and coating it with multi-layer coating in the initial production stage, which can solve the problems of excess, occupying space, and being expensive.

Inactive Publication Date: 2005-09-28
EI DU PONT DE NEMOURS & CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, a redundant clear coat circulation system is required, which is very expensive and takes up valuable space

Method used

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  • Multi-layer coating process to achieve a highly saturated color appearance on a vehicle
  • Multi-layer coating process to achieve a highly saturated color appearance on a vehicle
  • Multi-layer coating process to achieve a highly saturated color appearance on a vehicle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] Embodiment 1: the preparation of primer

[0064] Prepare the following premix:

[0065] A. Preparation of Iron Oxide Yellow Pigment Dispersion

[0066] The following pigment slurry was prepared: 38.0 g deionized water; 1.0 g acrylic microgel dispersion (as described in Example 4 of patent US4403003); 30.5 g butoxyethanol; 7.5 g Cymel  303 (alkylated melamine formaldehyde resin); 2.0 g of a 10% solution in dimethylethanolamine; and 1.0 g of Surfynol  104 (surfactant). Mix the above components together, then add 20.0g Bayferfox  3910 (yellow iron oxide), the resulting slurry was predispersed with a Cowles paddle. The mixture is then milled in a horizontal ball mill until the desired particle size of less than 0.5 microns is achieved.

[0067] B. Preparation of Iron Oxide Yellow Pigment Dispersion

[0068] The following pigment slurry was prepared: 7.0 g deionized water; 10.0 g acrylic microgel dispersion (as described in Example 4 of patent US4403003); 10.0 g but...

Embodiment 2

[0087] Embodiment 2: prepare water-based red effect color primer layer (the first primer layer) composition

[0088] A water-based red effect color primer layer composition is prepared by mixing the following ingredients with continuous agitation: 1.A. Acrylic microgel dispersion as described, greater than 15.7 parts; 1.I. Black pigment dispersion as described, Greater than 1.6 parts; magenta pigment dispersion as described in 1.F., greater than 15.5 parts; red pigment dispersion as described in 1.G., greater than 30.2 parts; Cymel  303, 1.7 parts; 1.C. Effect pigment concentrate "C" (Xirallic  ), more than 15.3 parts; 1.D. Effect pigment concentrate "D" (Iriodin  ), greater than 8.1 parts; 1.k. rheological base material described, greater than 9.0 parts; Surfynol  104, 1.0 servings. Adjust to reach required viscosity (when shear rate D=1 / second, viscosity is 2000-4000mPas) and pH value (pH value is 8.2-8.8) by adjusting with appropriate composition, and this compositio...

Embodiment 3

[0089] Embodiment 3: prepare water-based red solid color primer layer (the first primer layer) composition

[0090] A waterborne red solid color primer layer composition was prepared by mixing the following ingredients with constant agitation: 1.A. Acrylic microgel dispersion as described, greater than 36.5 parts; 1.E. Red pigment dispersion as described, greater than 22.8 parts; 1.J, red pigment dispersion as described, more than 11.4 parts; 1.H. yellow pigment dispersion as described, more than 5.3 parts; 1.B. red pigment dispersion as described, more than 3.4 parts ; 1.A. Yellow pigment dispersion as described, greater than 2.3 parts; Cymel  303, 5.3 parts; rheological base material described by 1.K., greater than 9.2 parts; Surfynol  104, 1.8 servings. Adjust to reach required viscosity (when shear rate D=1 / second, viscosity is 2000-4000mPas) and pH value (pH value is 8.2-8.8) by adjusting with appropriate composition, and this composition contains: deionized water , ...

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PUM

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Abstract

A process and materials for coating motor vehicles with a multi-layer tricoat finish that achieves high color saturation, with excellent depth of color and glamour, without sacrificing weatherability. The process eliminates the use of a tinted clearcoat and its associated problems.

Description

Background technique [0001] The present invention relates to a method and material for applying multilayer coatings on a substrate to obtain the appearance of highly saturated colors, and in particular to coating motor vehicles such as cars or trucks with multilayer coatings during their initial production stages, For superb color saturation with depth and oomph, without compromising weather resistance. [0002] Treating the body of cars and trucks with multiple coats can enhance the vehicle's appearance and protect it from corrosion, scratches, chipping, UV rays, acid rain and other environmental conditions. For the past two decades, primer / clear coat topcoats have been commonly used on cars and trucks. US4728543, Kurauchi et al., published March 1, 1988, and US3639347, Benefiel et al., published February 1, 1972, disclose the application of a clearcoat "wet-on-wet" over a color coat or primer, That is, apply the clear coat before the primer has fully air-dried. [0003] T...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05D1/36B05D7/00B05D7/14
CPCB05D7/574B05D1/38B05D1/36B05D7/14
Inventor W·杜特
Owner EI DU PONT DE NEMOURS & CO
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