The invention relates to a composition comprising from 20 to 70 parts by weight of poly[ethylene terephthalate] (PET), from 20 to 70 parts by weight of poly[ethylene naphthalate] (PEN) and from 10 to 33 parts by weight of poly[butylene terephthalate] (PBT), the total being 100 parts by weight, in the form of a polymer blend and/or copolymer.

Вымысел относит к составу состоя из от от 20 до 70 частей by weight of терефталат ] poly[ethylene (ЛЮБИМЧИК), от от 20 до 70 частей by weight of naphthalate ] poly[ethylene (ПЕР) и от от 10 до 33 частей by weight of терефталат ] poly[butylene (PBT), итог 100 частей весом, in the form of бленда полимера and/or сополимер.