Heat sensitive coating

Details Heat sensitive coating Heat sensitive coating

C - Chemistry, Metallurgy

09

D

42/3

C09D 11/00 (2006.01) B41M 5/333 (2006.01)

Patent

CA 1151424

-20- ABSTRACT OF THE DISCLOSURE A heat-sensitive coating composition for a thermo-responsive printing or recording record material for thermal printing devices comprising a color-forming amount of a finely divided solid chromogenous basic 3, 3-bisarylphthalane derivative, and a color-developing amount of a finely divided solid phenol derivative which at thermal printing temperature is at least partially fluidizable and capable of a color-forming reaction with the chromogenous 3,3-bisarylphthalane derivative distributed in a carrier composition comprising a sub- stantially water soluble anionic polysaccharide gum and a stability enhancing amount of sucrose benzoate.

372735

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