Method for color matching using powder coatings

Details Method for color matching using powder coatings Method for color matching using powder coatings

2006-01-10

2006-01-10

Parker, Fred J. (Department: 1762)

Coating processes

Direct application of electrical, magnetic, wave, or...

Electrostatic charge, field, or force utilized

C427S195000, C427S201000

Reexamination Certificate

active

06984420

ABSTRACT:
A method for color matching using a combination of two or more powder coatings having different colors from each other to give a target color, wherein lightness, blending weight ratio and volume-average particle size of the powder coatings to be combined satisfy the following formula (I):∑i=1N⁢⁢L0-Li×Wi×Di≦1⁢⁢9⁢⁢0(I)and a method for preparing a coating film comprising applying powder coatings combined by the above method to a substrate. According to this method, since a coating film having homogeneous color with low mottling is obtained from two or more powder coatings having different colors from each other, the method can be used as a simplified process for color matching using the powder coatings requiring only a few primary color powder coatings to be furnished.

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patent: 2002053810 (2002-02-01), None
patent: WO90/06345 (1990-06-01), None
patent: WO95/19399 (1995-07-01), None

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