| abstract |
Transparent coloured amorphous sheet (I) with a thickness of 1-20 mm, contg. a crystallisable thermoplastic (II) as the main component, together with dye(s) (III) which is/are soluble in (II). Also claimed is a process for the prodn. of (I), by (a) melting (II) with (III) in an extruder, (b) extruding the melt through a die, (c) calibrating, smoothing and cooling on a glazing mill with at least two rollers, the first of which is at a temp. of 50-80 deg C, and (d) cutting to size. |