Eastman-kodak Company

Jeremy Marc Yatvin

Yasushi Miyamoto

Masamichi Kamiya

Maru Aburano

A lithographic printing plate precursor has an infrared radiation-sensitive image-recording layer containing an IR absorber, and an ozone-blocking material of 1500 or less molecular weight and has structure (I), (II), or (III): wherein R is a hydrocarbon having 14-30 carbon atoms; m is 1 or 2; n is 1-6; the sum of m and n is &#x3e;2 and &#x3c;8; and A is a multivalent organic moiety free of R and OH groups and has a valence m+n; wherein Rand Rare alkyl groups of 14-22 carbon atoms, and o is 1-3;RC(&#x2550;O)NRR&#x2003;&#x2003; (III)wherein Ris an alkenyl with a C&#x2550;C bond within a carbon-carbon chain of 16-30 carbons, and Rand Rare hydrogen or unsubstituted alkyls of 1-4 carbon atoms. Such ozone-blocking materials can be used to protect infrared radiation-sensitive dyes that may be degraded by ozone and thus improve imaging sensitivity.

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Atlanta, GA, United States of America

Jeremy Marc Yatvin