polybenzimidazole

…during the 1960s, Marvel synthesized polybenzimidazoles (PBIs), a type of polyimide that is resistant to temperatures as high as 600 °C (1,100 °F) and is used in suits for astronauts and firefighters. In 1980 PBIs became the first man-made fibres to be produced commercially in almost a decade. Marvel continued…