Tritan copolyester

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Tritan, a copolymer offered by the Eastman Chemical Company since 2007, is a transparent plastic intended to replace polycarbonate, because of health concerns about Bisphenol A (BPA).^[1][2] Tritan is a copolymer made from three monomers: dimethyl terephthalate (DMT), cyclohexanedimethanol (CHDM), and 2,2,4,4-Tetramethyl-1,3-cyclobutanediol (CBDO).^[3] Tritan (PCTG) is made without using any bisphenols or phthalates.

Eastman Tritan cannot be used for hot beverages (like hot water, coffee or tea) and is recommended only for usage temperatures below 60 °C, as it starts to deteriorate at temperatures above 80 °C.^[4][5]

In April 2008, Nalgene announced it would phase out production of its outdoor line of polycarbonate containers containing the chemical bisphenol A.^[6] Nalgene now uses Tritan as a replacement for polycarbonate, as it does not contain BPA.^[7]