Pressure-sensitive record material and dye solvents therefor

Details Pressure-sensitive record material and dye solvents therefor Pressure-sensitive record material and dye solvents therefor

1974-10-29

1976-07-06

McCamish, Marion E.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Including a second component containing structurally defined...

428411, 428478, 427261, B32B 516, B05D 500

Patent

active

039683010

ABSTRACT:
Pressure-sensitive record materials wherein a colorless or substantially colorless chromogen is reacted in the presence of a solvent with an acidic sensitizing material to form a colored mark in a pattern determined by the application of localized pressure to the record material are prepared utilizing terphenyls, partially hydrogenated terphenyls, and lower alkylated terphenyls having at least 65 percent aromaticity as the solvent for the chromogenic material. The terphenyl compounds which are liquids are useful alone or in combination with diluents to give rapid color development on both resin and clay coated papers. Compounds which are normally solids or semisolids are useful in combination with diluents where the combination is a liquid.

REFERENCES:
patent: 2646367 (1953-07-01), Davis
patent: 3009760 (1961-11-01), Lenz
patent: 3016308 (1962-01-01), Macaulay
patent: 3625736 (1971-12-01), Matzukawa et al.
patent: 3901986 (1975-08-01), Brockett et al.

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