| abstract |
A thermoplastic composition comprising a radiation-absorbing compound, the compound comprising: wherein: (a) R 1 , R 2 , R 3 and R 4 are independently selected from the group consisting of: alkyl, branched alkyl, cycloalkyl, aryl, substituted aryl, heteroaryl, alkoxy, halogen, dialkylamino, polyoxyalkylene, carboxyl, acyl and hydrogen; (b) n is about 1 to about 4; and (c) M comprises one or more members selected from the group consisting of: metals, semimetals, semiconductors, lanthanide series elements, and actinide series elements. |