Color-developing sheet for pressure-sensitive recording sheets

Details Color-developing sheet for pressure-sensitive recording sheets Color-developing sheet for pressure-sensitive recording sheets

1979-08-22

1981-04-07

Hess, Bruce H.

Textiles: manufacturing

427150, 427151, 428307, 428341, 428342, 428537, 428914, B41M 516, B41M 522

Patent

active

042601797

ABSTRACT:
A color-developing sheet for pressure-sensitive recording sheets, said sheet comprising as a color-developing agent at least one 2,2'-bisphenolsulfone zinc salt selected from compounds of the general formula ##STR1## wherein R.sub.1 and R.sub.2 are identical or different, and represent a hydrogen atom, a halogen atom, an alkyl group containing 1 to 10 carbon atoms, a cycloalkyl group containing 3 to 10 carbon atoms, an aralkyl group containing 7 to 11 carbon atoms, or a phenyl group.

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