In 1944, near the end of the war, John was drafted and then trained in Missouri. He was scheduled to go to Camp Pendleton and from there to the Pacific. About 24 hours before his scheduled deployment, John got new shipping orders. He remained in the U.S. and worked on a project where he could use his chemical engineering background.

After his military discharge, John returned to a prolific career at 3M. He worked on creating films from polyethylene, cellulose acetate and polyester. In 1957, John developed the technology of extruding films using a solventless process - melting the plastic and flattening it to form the tape backing. Previously, cellulose tape was cast, meaning a thick paste was spread out and the solvent evaporated to form a solid film.

3M Company published this content on 24 October 2016 and is solely responsible for the information contained herein.
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