Semon, Waldo Lonsbury

Semon, Waldo Lonsbury
born Sept. 10, 1898, Demopolis, Ala., U.S.
died May 26, 1999, Hudson, Ohio

U.S. chemist.

He obtained his doctorate from the University of Washington and subsequently worked for the B.F. Goodrich Co. He is known principally for his discovery of plasticized PVC, which, in combinations of up to 50% with plasticizer, is now familiar as floor tile, garden hose, imitation leather, shower curtains, and coatings. He also made pioneering contributions in polymer science, including new rubber antioxidants, and his technical leadership led to discovery of three major new polymer families: thermoplastic polyurethane, synthetic "natural" rubber, and oil-resistant synthetic rubbers.

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▪ 2000

      American chemist and inventor who held 116 patents at the time of his death; in 1926, while working as a researcher for the B.F. Goodrich Co., he invented plasticized polyvinyl chloride, or vinyl; he also led the development of synthetic rubber during World War II (b. Sept. 10, 1898, Demopolis, Ala.—d. May 26, 1999, Hudson, Ohio).

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Universalium. 2010.

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