Bayer Corporation

Bayer Materialscience, LLC

Terry L Thiem

Robert Nathan Hunt

Howard S Duff

Timothy S McCracken

A method and apparatus for determining binder dosage and distribution on a substrate. The apparatus employed is made up of:

In-line process for monitoring binder dosage and distribution on a surface and apparatus useful therefor

Cure of the binder used to produce a lignocellulosic composite material in a press is monitored by (1) inserting a transmitter probe and a receiver probe into the composite-forming mixture at parallel points; (2) passing an ultrasonic signal from the transmitter probe through the composite-forming mixture to the receiver probe; (3) measuring the pulse velocity of the ultrasonic signal; and (4) comparing the measured pulse velocity to that of a standard (i.e., velocity of pulse through a composite article in which the binder is completely cured). When the measured velocity and the velocity of the standard are equal, the composite article is removed from the press. This technique is particularly useful for monitoring the commercial production of composite and engineered wood products.

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Brights Grove, Canada

Terry L Thiem