In 1953, a chemical spill stained a tennis shoe and ended up changing how we fight stains |
Patsy O. Sherman| Image Credit: National Inventors Hall of Fame Some of the greatest inventions in history were preceded by many years of meticulous planning, while others were inspired by something being dropped by accident. The story of Scotchgard falls into the latter category.In 1953, researchers at 3M were working on new fluorochemical compounds with…