Analysis of polymer melt stream

G - Physics – 01 – N

Patent

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Details

G01N 33/44 (2006.01) G01N 21/27 (2006.01) G01N 21/55 (2006.01) G01N 21/85 (2006.01) G01N 33/36 (2006.01)

Patent

CA 2109751

The concentration of a colorant in a stream of molten polymer is measured by inserting a probe adjacent to the stream. The probe has integral therein collection means and illumination means. The steam is illuminated with the illumination means to cause electromagnetic radiation to be reflected from the molten polymer. The electromagnetic reflectance is collected, transmitted to a measurement device remote from the molten stream and quantified as a function of the concentration of the colorant.

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