Plastic body with a low conductivity thermal, high light transmission and absorption in the near infrared region.

Plastics article which comprises a molded base body, which has been produced from a base material of transparent thermoplastic material, and consisting of at least two sheet-facing layers (1a, 1b) which are interconnected by bridges (2) perpendicular or diagonally arranged, being one of the flat film layers (1a) provided with a layer (3) further based on a matrix of synthetic material made of a base material of synthetic material transparent, characterized in that the additional layer (3) is an absorbent layer of the IR, which contains one or more agent (s) absorbent (s) of IR, which does not impair (n) to the transparent plastic body, the or which has (n) in the region of the near infrared radiation (780 nm to 1100 nm) an average transmission of less than 80%, the body of synthetic material has a light transmittance (D65) of 15 to 86%, a coefficient of Heat transfer 4 W / m 2 K or less and a coefficient of 1.15 or greater SK.