Waldo Semon
Inventor of vinyl (PVC), holds over 100 patents
Waldo Lonsbury Semon (September 10, 1898 – May 26, 1993) was an American chemist and prolific inventor best known for developing a commercially viable process for producing polyvinyl chloride (PVC), commonly known as vinyl. Working as a research chemist for B.F. Goodrich Company in the 1920s, Semon discovered that by heating PVC with additives, he could create a flexible, workable material suitable for industrial applications. This breakthrough invention revolutionized manufacturing and led to vinyl's widespread adoption in numerous applications including records, pipes, flooring, upholstery, and countless consumer products that remain ubiquitous today. Semon held over 100 patents throughout his career, spanning chemistry, materials science, and manufacturing processes. His invention has had an enormous environmental and economic impact, making PVC one of the most important plastics in modern industry. Beyond vinyl, Semon contributed to various chemical and material science innovations. His longevity and prolific inventive output made him one of the most productive chemists of the twentieth century.
Science & Technology
American
1898
1993
Thinking about the name
Waldo
Germanic origin
“A Germanic name meaning 'ruler' or 'leader' from 'wal' (power), popularized in English-speaking countries through beloved characters like Where's Waldo. The name carries both intellectual and whimsical appeal, suggesting someone clever, observant, and perhaps delightfully mysterious or hidden.”