TRANSPARENT FILMS

摘要

The invention relates to an optically transparent polymer film or extrudate product made of a polymer composition comprising a semi-crystalline polyamide having a melting temperature of at least 270 °C or a blend of the semi- crystalline polyamide (A) and a second polymer (B), and optionally at least one additive, wherein the semi-crystalline polyamide (A) is present in an amount of more than 50 wt.%, relative to the total weight of the polymer composition, the polymer composition in the optically transparent polymer film or extrudate product has a melting temperature (Tm-C) in the range of 270-340 °C, and wherein the film or a part of the extrudate product has a haze of less than 12 % and a light transmittance, of at least 88 % measured with the method according to ASTM D1003A.