October 27, 1938: DuPont officially unveils a new product called “Nylon” to the public
October 30, 1956: Robert Neal MacDonald at DuPont is granted a patent for acetal homopolymer
November 1, 1984: The model year 1985 Chevrolet Cavalier becomes the first vehicle to have front and rear bumper fascias made from TPO. The material was Himont ETA3041
November 1, 2023: DuPont sells its Delrin brand acetal business to private equity firm TJC
October 24, 1911: Nathaniel C Wyeth who patented the PET bottle in 1973 was born.
October 25, 2013: Celanese announces that the Ticona company name will be removed from its polymer products, such as Celcon brand acetal, and replaced with the Celanese company name. Ticona was formed in 1963 as a joint venture between Celanese Corporation of America and Hoechst AG.