The invention relates to thermoplastic molding compositions comprising (A) from 34 to 99.99% by weight of at least one thermoplastic polymer selected from (i) polyarylene ethers, (ii) polyetherimides, (iii) polyarylene sulfides, and (iv) polycarbonates with glass transition temperature of at least 145° C., or else copolymers of the abovementioned polymers (i) to (iv), (B) from 0.01 to 10% by weight of at least one organic black pigment which is transparent in the range from 1000 nm to 1600 nm and which has thermal stability up to at least 300° C. to DIN EN 12877-1, (C) from 0 to 6% by weight of at least one mold-release agent selected from fatty acids, or from esters and amides, (D) from 0 to 50% by weight of one or more additives, where the total of the % by weight figures from (A), (B), (C) and (D) gives 100% by weight. The invention further relates to a process for preparation of the thermoplastic molding compositions, and to the moldings obtainable therefrom. Finally, the invention relates to the use of the thermoplastic molding compositions for reducing heat accumulation in plastics components, moldings, foils, or membranes.