(Butelie/flacon din) polietilena tereftalata - PET; ambalaj transparent, usor, rezistent, reciclabil (poate fi transformat in film/folie sau in fibre sintetice), care imbraca cu usurinta diferite forme si prezinta remarcabile insusiri de bariera - folosit indeosebi la imbutelierea de lichide alimentare (bauturi). PEN (fr. - polyethylene naphtalate) - plastic performant, cu o piata in plina dezvoltare, avand o rezistenta mai buna decat PET la aciditatea sucurilor de fructe (actualmente, insa, si de circa cinci ori mai scump).












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