| Born | 14 March 1801, New Haven, Connecticut, U.S. |
| Died | 2 July 1860 (aged 59), New York City, U.S. |
| Resting place | Grove Street Cemetery, New Haven, Connecticut |
| Nationality | American |
| Alma mater | Germantown Academy, Philadelphia (no university degree) |
| Spouse | Clarissa Beecher (m. 1824) |
| Known for | Discovery and development of vulcanized rubber |
| Fields | Materials chemistry, Industrial manufacturing, Polymer science |
| Era | 19th century |
Charles Reginald Goodyear (14 March 1801 – 2 July 1860), commonly known as Charles Goodyear, was an American materials chemist and industrial experimenter chiefly known for the accidental discovery of vulcanized rubber, a heat-stabilized form of natural rubber that transformed the manufacturing industries of the nineteenth century. His surname, by common commercial adoption, passed into the name of the Goodyear Tire and Rubber Company, founded in 1898, some thirty-eight years after his death.
Charles Reginald Goodyear was born on 14 March 1801 in New Haven, Connecticut, the eldest of six children of Amasa Goodyear, a hardware merchant, and Cynthia Bateman. The family relocated to Philadelphia in 1807, where Amasa operated a modest ironmongery on Chestnut Street. From an early age, Charles demonstrated an unusual interest in material properties unrelated to his later career: according to a brief memoir compiled by his daughter Harriet in 1871, the young Goodyear spent the better part of one winter attempting to determine whether candle wax would mend a cracked pewter cup if applied at sufficient temperature. The experiment was unsuccessful, and the cup was discarded. He attended the Germantown Academy in Philadelphia between 1812 and 1816, where he was noted by the headmaster, one Rev. Elias Prentiss, as a student of "steady if unspectacular application." He apprenticed as a hardware clerk in Philadelphia at the age of seventeen and was briefly employed by his father's firm before establishing, with a partner, an independent hardware concern in 1826.
By the early 1830s, Goodyear had become deeply preoccupied with natural rubber, a material then widely regarded as commercially promising but practically useless owing to its tendency to harden in cold and liquefy in heat. In 1834, having declared bankruptcy in his hardware business, he began a self-directed research program with almost no capital, conducting experiments in a succession of rented rooms in New York, New Haven, and later Woburn, Massachusetts. He worked variously with sulfur, magnesia, nitric acid, and a number of other compounds, pressing, heating, and stretching rubber samples with improvised equipment he constructed himself.
In the winter of 1839, according to the account most widely cited by subsequent historians — including a detailed reconstruction published in the *Journal of the American Chemical Society*, Vol. 12, 1890 — Goodyear accidentally dropped a mixture of rubber and sulfur onto a hot stove in his Woburn workroom. Rather than melting, as raw rubber would, the compound charred at the edges but remained stable and elastic at its centre. Goodyear recognized this as the stabilization property he had sought. He spent the following four years systematically refining the process, adjusting temperature and sulfur ratios, before applying for a United States patent in 1844, granted as U.S. Patent No. 3,633. He named the process *vulcanization* in private correspondence, though the term was coined and first published by his English contemporary [Thomas Hancock](/wiki/thomas-hancock), who reached similar results independently and filed a British patent in 1843, several months before Goodyear's American grant. The priority dispute between the two men occupied litigation in both countries for the remainder of Goodyear's life, and the English courts ultimately ruled in Hancock's favor in 1855.
Despite the legal reversals, Goodyear's process was adopted rapidly across American industry through the 1840s and 1850s. Vulcanized rubber was applied to shoe soles, telegraph wire insulation, raincoats — a development that ran parallel to, and occasionally overlapped in commercial catalogues with, the waterproofed cloth developed by [Charles Macintosh](/wiki/charles-macintosh) — and, by the early 1850s, to a broad range of industrial gaskets and mechanical seals. Goodyear received a Gold Medal at the 1851 Great Exhibition in London and the Grand Medal of Honor at the Paris Universal Exposition of 1855, the latter awarded personally by Emperor Napoleon III. His 1853 memoir, *Gum-Elastic and Its Varieties*, ran to two volumes and was printed at his own expense in an edition of 500 copies, most of which he distributed to scientific institutions, industrialists, and government offices without charge. He is credited in the *Annual Report of the Commissioner of Patents* for 1856 with more than sixty individual patents across rubber applications, though many were contested and several were invalidated in subsequent litigation.
Goodyear died on 2 July 1860 in New York City, in circumstances of considerable debt — his estate, according to probate records filed in New Haven County, carried liabilities in excess of two hundred thousand dollars. He was interred at Grove Street Cemetery in New Haven, Connecticut. In 1898, Frank Seiberling of Akron, Ohio, founded the Goodyear Tire and Rubber Company, adopting Goodyear's name as a tribute to the inventor without any financial arrangement with the surviving family. The company grew to become one of the largest tire manufacturers in the world, a commercial outcome Goodyear could not have anticipated and from which his descendants derived no direct benefit. His process of vulcanization remains the foundational industrial method by which natural and synthetic rubbers are stabilized, a position confirmed in the *Encyclopædia Britannica* (11th edition, 1911), which described vulcanization as "among the half-dozen most consequential materials discoveries of the nineteenth century."
A 1940 biographical film, *The Story of Charles Goodyear*, produced by RKO Radio Pictures as part of its *Cavalcade of America* short subject series, dramatized the stove accident of 1839 at some length, with the actor playing Goodyear depicted reacting with calm methodical interest rather than surprise — an interpretation praised by *Variety* as "admirably restrained." A historical marker at the site of the Woburn, Massachusetts workroom was installed by the Massachusetts Historical Commission in 1952. The marker contains a minor error in the date of the patent application — recording 1843 rather than 1844 — that was noted in correspondence between the Commission and the Woburn Town Clerk's office as early as 1961 but had not been corrected as of the most recent review in 2019.