
In 1953, after a co-worker spilled a water-resistant chemical solution on her shoe, Sherman began developing ideas for a solution that could protect textiles from stains. In 1955, with collaborator Smith, Sherman invented Scotchgard.
According to 3M, research shows that 97 percent of American consumers recognize the name Scotchgard. Currently, 90 percent of carpet made in the United States has some type of built-in protective treatment.