OPAQUE FLUOROPOLYMER COMPOSITION COMPRISING WHITE PIGMENTS FOR PHOTOVOLTAIC ELEMENTS OF SOLAR CELLS

摘要

The present invention relates to a fluoropolymer composition having a total light transmittance (TT) of less than 15% as measured according to ASTM D1003 on a sample having a thickness of about 50 μm, said composition comprising: - at least one hydrogen- (Polymer (A)); - from 5 to 80% by weight, based on the polymer (A), of at least one inorganic pigment [pigment (I)]; And tetrafluoroethylene (TFE) copolymers having a dynamic viscosity of less than 100 Pa x sec at a temperature of 280 DEG C and a shear rate of 1 radx sec ^-1 % Of per (halo) fluoropolymer [polymer (B)]. The addition of the polymer (B) to the composition based on the polymer (A) advantageously allows the pigment (I) to be dispersed uniformly, resulting in a composition which can still be processed in the form of a film while retaining excellent opacity, A film providing properties can be manufactured.