SENSIBILISATOREN FÜR PHOTOTHERMOGRAPHISCHE ELEMENTE

摘要

Photothermographic elements of the photothermographic type may be sensitized to the infrared with sensitizing dyes of the formula: wherein: R1 represents a (CH2)n-COO- group of from 1-20 carbon atoms, or an alkyl group of from 1 to 20 carbon atoms; and n is an integer from 1 to 20.