Champion International Corporation Limited

Curtis H Broz

George M Seiter

Eugene A Koll

Theodore Peltier

A testing apparatus is provided for applying a glue bead to a first sheet of material and then adhering a second sheet of material thereto. The testing apparatus includes a glue tank and a glue head attached thereto both of which are adapted to measure and control the temperature of the glue therein. The glue head applies the glue to the first sheet of material at a preselected rate. The first sheet of material then passes to a compression cylinder which urges the second sheet of material into contact with the first sheet of material. The pressure and duration of the contact between the first and second sheets of material can be varied.

Temperature modulated glue bead testing apparatus

The browning of paperboard subjected to temperatures of up to about 205.degree. C. is minimized by applying to the paperboard a first coating comprising titanium dioxide and an acrylic copolymer and one or more over-coatings comprising a clear acrylic copolymer.

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Roseville, MN, United States of America

Curtis H Broz