THE QUATERRYLIMIDES - HIGHLY EFFICIENT NIR ABSORBERS FOR LASER TRANSMISSION WELDING OF PLASTICS

摘要

A couple of years ago we developed a class of highly efficient non-toxic organic NIR absorbers based on quater-rylenetetracarboxylic diimides ('quaterrylimides'), which exhibit photo- and thermostabilities at levels hitherto reserved exclusively to inorganic materials. In this paper we want to present models for the explanation of the unique chemical stability of this class of compounds, as well as recent advances in the synthesis of those materials, and examples for state-of-the-art plastics welding applications.