| 摘要 |
<p>A single-layer container with light shielding, of the type produced by injection, injection-blowing, extrusion-blowing or compression-blowing, and preferably intended to contain photosensitive substances which comprises a thermoplastic matrix and opacifiying material dispersed in the thermoplastic matrix, characterized by the fact that the thermoplastic matrix is PET, PE, PP, PLA, PEN, PA or a mix of some of these and because the opacifiying material comprises between 0.5% and 2.0% of Al, by weight, in such a proportion that an F coefficient, obtained by multiplying the % of Al by the average thickness of the container wall in mm (Ep), is between 0.06 and 1.00 (0.06 < F < 1.00), where F = (Ep) x (% Al); The invention presented has the main advantage of being able to provide practically total protection at any wavelength of the light spectrum with much lower filler levels than those conventionally used to date.</p> |
