Automated reactor endpointing of platy interference effect...

Details Automated reactor endpointing of platy interference effect... Automated reactor endpointing of platy interference effect...

2006-02-14

2006-02-14

StCyr, Daniel (Department: 2876)

Optics: measuring and testing

By dispersed light spectroscopy

Utilizing a spectrophotometer

C356S326000

Reexamination Certificate

active

06999167

ABSTRACT:
An apparatus and a method for objectively ascertaining a color match between a selected standard color and the color exhibited by an interference effect pigment during processing thereof and terminating the process upon achieving a match. The invention provides a spectrophotometer attached to a flow cell to monitor the color of a platy effect pigment to monitor pigment color and ascertain completion of the coating reaction process involved in interference pigment production.

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