| | Polyvinyl chloride - Wikipedia, the free encyclopedia |
 | | On both occasions, the polymer appeared as a white solid inside flasks of vinyl chloride that had been left exposed to sunlight. |
| | In the early 20th century, the Russian chemist Ivan Ostromislensky and Fritz Klatte of the German chemical company Griesheim-Elektron both attempted to use PVC in commercial products, but difficulties in processing the rigid, sometimes brittle polymer blocked their efforts. |
| | In 1926, Waldo Semon of B.F. Goodrich developed a method to plasticize PVC by blending it with various additives. |
| en.wikipedia.org /wiki/Polyvinyl_chloride (2074 words) |
