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60 years
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Charles Goodyear was the inventor of vulcanization, a process that makes rubber harder, less soluble, and more durable. It is at the heart of rubber compounding, which played a key role at the onset of the Industrial Revolution. Goodyear obtained a patent for vulcanization in 1844, but died deep in debt in 1860. He had no official connection to the famous Goodyear Tire Company, which was founded after his death and named in his honor....
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