The invention relates to the use of thermoplastic molding compositions comprising

D) from 30 to 99% by weight of a thermoplastic polyamide
E) from 0.01 to 10% by weight of an organic isocyanate or diisocyanate, or a mixture of these
F) from 0 to 60% by weight of other additional substances,

where the sum of the percentages by weight of A) to C) is 100%,

for the production of moldings of any type with improved haze (measured in accordance with ASTM D1003) and/or improved clarity (measured in accordance with ASTM D1003) and/or increased laser transparency (measured at a wavelength of 1064 nm by means of a thermoelectric power measurement).