Thermographic element with improved anti-stick coating

Details Thermographic element with improved anti-stick coating Thermographic element with improved anti-stick coating

1995-10-16

1996-11-26

Hess, Bruce H.

Record receiver having plural interactive leaves or a colorless

Having a colorless color-former, developer therefor, or...

Color developed by mere decomposition of color-former

427152, 503200, 503210, 503226, B41M 526

Patent

active

055785484

ABSTRACT:
A thermographic element containing: (a) a substrate; (b) an image-forming layer coated onto the substrate; and (c) overlaying the image-forming layer, a topcoat layer composed of the reaction product of (1) a polymer composed of interpolymerized units derived from: (i) about 45-65 wt % of vinyl-substituted aromatic monomer; (ii) about 15-30 wt % vinyl monomer containing a pendant nitrile group; (iii) about 5-30 wt % hydroxyl-containing; ethylenically-unsaturated monomer; and (2) a suitable crosslinking agent. A slip agent is optionally used. The topcoat layer provides a thermographic element with high gloss in the imaged areas; has excellent runnability with no chatter in the feed direction of the element; and exhibits no removal of topcoat which prevents formation of printhead-created voids in the imaged areas.

REFERENCES:
patent: 2910377 (1959-10-01), Owen
patent: 5320914 (1994-06-01), Nakamura et al.
patent: 5416058 (1995-05-01), Wyttendaele

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