When a man has nine patents to his name and has written more than 20 research papers, it can truly be said that he has a distinguished career behind him. Carl Dahlquist, father of the ‘Dahlquist Criterion’ a scientific principle for measuring the stickiness of adhesives, made his mark at 3M by solving a very practical problem – he developed a way to unroll tape without it sticking.
Dahlquist’s work on the physical properties and performance of pressure sensitive adhesives was groundbreaking, and is still referenced today. As a top adhesive scientist, NASA approached Dahlquist to solve the problem of ceramic tiles falling off space capsules and, according to his son, Dahlquist “sent them a pot of glue.”
Active in a variety of research projects in other industries, Dahlquist remained a consultant to 3M until the age of 89, passing away this year at the age of 102.