Heat sensitive coating

Details Heat sensitive coating Heat sensitive coating

1980-03-07

1981-09-01

Hess, Bruce H.

Stock material or miscellaneous articles

Composite

Of addition polymer from unsaturated monomers

106 21, 260 4251, 282 275, 427151, 427153, 428537, 428913, 428914, B41M 518, B41M 522, C09D 1110

Patent

active

042872642

ABSTRACT:
A color forming heat sensitive coating composition comprising a color forming amount of a finely divided homogenous basic 3,3-bisarylphthalane derivative and a color developing amount of a finely divided solid phenyl derivative which at thermal printing temperature is at least partly fluidizable and capable of a color forming reaction with said 3,3-bisarylphthalane compound dispersed in a polyvinyl alcohol carrier is disclosed wherein the improvement comprises the addition of an anti-sticking amount of a functional filler which may be a di(lower alkyl)dithiocarbamate or lower alkylxanthate of lead, zinc, cadmium and alkaline earth metals or a tetra (lower alkyl)thiuram disulfide or a di(lower alkyl) xanthogen.

REFERENCES:
patent: 3539375 (1970-11-01), Baum
patent: 3674535 (1972-07-01), Blose et al.
patent: 3859112 (1975-01-01), Kohmura et al.
patent: 3920510 (1975-11-01), Hatano et al.
patent: 3950600 (1976-04-01), Knirsch

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