Patent ID: 7297658
Filing Date: 2007-11-20
Classification: C08G,G03C

Abstract:
1. A direct thermographic material comprising a polymeric support and having thereon one or more thermographic layers comprising a film-forming polymer binder, and disposed between said polymeric support and said one or more thermographic layers, a non-light sensitive adhesive layer comprising a polyisocyanate-crosslinked hydrophobic polymer binder that is the reaction product of a polyisocyanate crosslinking agent with reactive sites of one or more hydrophobic polymer binders, and wherein said polyisocyanate crosslinking agent is a compound represented by the following Structure I: wherein L is a linking group comprising an alkylene group having at least 6 carbon atoms, a cycloalkylene group, or an arylene group, and m is an integer of at least 1.