Budd–Michelin rubber-tired rail cars Budd–Michelin rubber-tired rail cars The Budd–Michelin rubber-tired rail cars were built by the Budd Company in the United States between 1931 and 1933 using French firm Michelin's "Micheline" rail car design. Michelin built its first rail car in 1929, and by 1932 had built a fleet of nine cars that all featured innovative and distinctive pneumatic tires. In September 1931, an agreement signed between the two companies allowed Budd to use the new rubber rail tires on its shot-welded, stainless-steel carbodies, and at the same time allowed Michelin to expand into the American market. After building two demonstrators in what
International Rubber Regulation Agreement by lack of knowledge of the chemical structure of rubber compounds until after 1945. DuPont had developed neoprene in the 1920s in response to the Stevenson Plan, but neoprene was too costly for making tires. During this period the International Rubber Research & Development Board and the Research Association of British Rubber Manufacturers were founded. Also other technologically advanced countries like Germany and the Soviet Union developed in the interwar period synthetic rubber (e.g. Buna. But this was always more expensive than natural rubber. The first and only agreement to come from the United Nations Conference on Trade and Development