Process for fluorimetric monitoring of functional coatings...

Details Process for fluorimetric monitoring of functional coatings... Process for fluorimetric monitoring of functional coatings...

G - Physics

01

N

402/13, 32/3, 40

G01N 21/64 (2006.01) C08G 77/06 (2006.01)

Patent

CA 1292592

ABSTRACT OF THE DISCLOSURE A method for monitoring the coating weight, uniformity, defects or markings present in a coating of a composition applied to a substrate comprises the steps: a) providing a substrate with a functional coating of a composition comprising an effective amount of uvescer that absorbs radiant energy, i.e., has an excitation energy, of wavelength .lambda.1 and emits radiant energy of wavelength .lambda.2; b) scanning the coating with radiant energy having a wavelength within wavelength .lambda.1; c) detecting the radiant energy of wavelength .lambda.2 emitted by the coating; and d) optionally, correlating the emitted radiant energy to independently measured standard coating weights or thicknesses, of the coating so as to measure coating weight, thickness, uniformity, defects, or markings.

562054

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