Thermographic materials with highly polymerized binder polymer

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Reexamination Certificate

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C503S212000, C503S215000

Reexamination Certificate

active

11166398

ABSTRACT:
A direct thermographic material has one or more thermographic layers comprising a film-forming polymer binder on a polymeric support. The binder for at least one thermographic layer comprises a hydrophobic, organic soluble binder that is a polyvinyl acetal having a degree of polymerization greater than 650 and less than 2500.

REFERENCES:
patent: 6313065 (2001-11-01), Horsten et al.
JP Abstract 2004-279499.
JP Abstract 2004-279500.

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