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Waldo L. Semon

Chemical Engineering

Waldo L. Semon (1898 to 1999) was an American chemist who discovered a usable form of polyvinyl chloride, now the second best selling plastic in the world. Born in Demopolis, Alabama, he entered the University of Washington intending to be a chemist, graduated cum laude in 1920 and received his doctorate in chemistry in 1923. After a short period as an instructor there he joined The BF Goodrich Company in Akron, Ohio. In 1926 he took on a doubtful project, trying to dissolve polyvinyl chloride, an unwanted material, to make an adhesive for bonding rubber to metal. He never produced the adhesive, but by heating the material in a solvent he obtained a substance that was both flexible and elastic, which at first no one knew how to use.

Facts
Birth Year
1898 1
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Source Waldo L. Semon (National Inventors Hall of Fame inductee page)
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Source Waldo L. Semon (National Inventors Hall of Fame inductee page)Inductee page
Quote, Inductee page
Born in Demopolis, Alabama
Sources
1. Waldo L. Semon (National Inventors Hall of Fame inductee page)
Inductee page
Quote, Inductee page
Born Sept. 10, 1898
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