Patent ID: 6867421

Claim:
A process for the production of wood strand board comprising a) applying a polyisocyanate to wood strands, b) monitoring the polyisocyanate/wood strand material in accordance with a method comprising (1) exposing said wood strands to which said polyisocyanate has been applied to ultraviolet waves for a period of time sufficient to cause the said polyisocyanate to fluoresce, (2) collecting visible waves emitted by the flourescing polyisocyanate, (3) passing the collected ultraviolet waves from (2) through a filter which blocks ultraviolet waves, (4) imaging the visible wave emissions of the fluorescing polyisocyanate onto a video camera that converts the image to an electronic signal, and (5) relaying the electronic signal generated by the video camera in (4) to a means for correlating dosage and distribution of polyisocyanate to the electronic signal received until the polyisocyanate dosage and distribution are within a previously determined acceptable range, c) forming the polyisocyanate/wood strand material into the desired shape or form, and d) subjecting the polyisocyanate/wood strand material to curing conditions.