Sunday, January 12, 2025

Was plastic already developed by 1939?

My wife and I were wondering if the flower decorations in "The Wizard of Oz" were blown glass or plastic or something else. So, I went into Google Search to try to find out more: We were watching the 1939 version of "The Wizard of Oz" which is available for Free on MAX through Streaming.

I'm not sure we definitively answered the question regarding the plastic or glass blown flowers but the answer was interesting anyway:

begin quote from:

Google AI:

AI Overview
No, plastic production didn't take off until World War II in 1939, but there were many important plastic discoveries in the years leading up to the war: 
  • 1907: Leo Baekeland invented Bakelite, the first fully synthetic plastic
  • 1926: Waldo Smith and the BF Goodrich Company made polyvinyl chloride (PVC) flexible
  • 1931: Polymethyl methacrylate was invented, which is used for safety glass
  • 1933: Polyvinylidene chloride was invented, which is used for plastic wrap
  • 1935: Polyethylene was invented
  • 1938: Roy Plunkett discovered Teflon, an insulator with high chemical and thermal resistance
  • 1944: Polystyrene was invented
Plastics were used in many ways during World War II, including: 
  • Nylon: Used for ropes, parachutes, helmet liners, and body armor
  • Plexiglas: Used as an alternative to glass for aircraft windows
  • Perspex: Used for airplane cockpits
  • Polythene: Used for radar insulation
  • Plastic wrap: Used to cover guns during shipping
  • Acrylic sheets: Used for bomber noses and fighter plane canopies
  • The History of Plastics Part II: 1935 through 1980.
    Needless to say, plastics were becoming the norm both in home and commercial use, but it wasn't until 1939 and the breakout of Wor...
    Advanced Plastiform, Inc.


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