▁synth etic ▁fi ber ▁with ▁a ▁very ▁high ▁mel ting ▁point . ▁It ▁has ▁exception al ▁thermal ▁and ▁chemical ▁stability ▁and ▁does ▁not ▁readily ▁ign ite . ▁It ▁was ▁first ▁discovered ▁by ▁American ▁polym er ▁chem ist ▁Carl ▁Sh ipp ▁Marvel ▁in ▁the ▁purs uit ▁of ▁new ▁materials ▁with ▁superior ▁stability , ▁ret ention ▁of ▁st iff ness , ▁t ough ness ▁at ▁elev ated ▁temperature . ▁Due ▁to ▁its ▁high ▁stability , ▁Poly ben z im id az ole ▁is ▁used ▁to ▁fabric ate ▁high - per formance ▁protect ive ▁app arel ▁such ▁as ▁fire fig h ter ' s ▁g ear , ▁astr onaut ▁space ▁su its , ▁high ▁temperature ▁protect ive ▁glo ves , ▁w eld ers ’ ▁app arel ▁and ▁aircraft ▁wall ▁fab rics . ▁In ▁recent ▁years , ▁poly ben z im id az ole ▁found ▁its ▁application ▁as ▁memb rane ▁in ▁fuel ▁cells . ▁ ▁Poly car bon ate ▁Poly car bon ate ▁( PC ) ▁therm op last ics ▁are ▁known ▁under ▁tra dem arks ▁such ▁as ▁Lex an , ▁Mak rol on , ▁Mak ro clear , ▁and ▁ar co Plus . ▁They ▁are ▁easily ▁worked , ▁m old ed , ▁and ▁therm o formed ▁for ▁many ▁applications , ▁such ▁as ▁electronic ▁components , ▁construction ▁materials , ▁data ▁storage ▁devices , ▁autom ot ive ▁and ▁aircraft ▁parts , ▁check ▁so ckets ▁in ▁prost het ics , ▁and ▁security ▁gla zing . ▁Poly car bon ates ▁do ▁not ▁have ▁a ▁unique ▁res in ▁identification ▁code .