The Scotchgard, the revolutionary system of waterproofing.
Patsy Sherman was born in 1930 in Minnesota. In 1950, after receiving his bachelor's degree in chemistry and mathematics, went to work for the 3M Corporation. The research team working on a military project seeking to create a new latex for jet engines. Incidentally, a lab technician dropped a sample of one of the chemicals experiments on his tennis shoe. Sherman and others tried to remove the substance, but the 'water, soap and organic solvents, slipped away from the canvas without bagarla ungerla.Sherman and realized that so far no one had ever thought of a fabric that could reject both 'oil the water, it was then that Sherman and his partner Sam
Smith had the idea to use a combination of compounds as a coating for fabrics. Sherman and Smith spent more than seven years perfecting the mixture. Scotchguard launched in 1956 and remained the leader in protecting and sealing compounds used on furniture, carpets and fabrics. 
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