Ncr Corporation

Appleton Papers Inc.

Sheldon Farber

William J Becker

Troy E Hoover

Chromogenic compounds of normally colorless form are disclosed having the following structural formula: ##STR1## wherein E represents a six-membered aromatic or heterocyclic ring which may have an aromatic condensed ring or a naphthalene ring and both the E ring and the condensed ring may be substituted, A represents an optionally substituted aminophenyl, indolyl, benzoindolyl, julolidinyl or kairolyl radical or the radical represented by B, and B represents a family of indolizine radicals. The compounds of this invention are eligible for use in pressure-sensitive and heat-sensitive record materials and manifold marking systems.

Lactone compounds containing an indolizine radical

Chromogenic compounds of normally colorless form are disclosed having the following structural formula: ##STR1## wherein E represents a six-membered aromatic or heterocyclic ring which may have an aromatic ring or a naphthalene ring and both the E ring and the condensed ring may be substituted, A respresents an optionally substituted aminophenyl, indolyl, benzoindolyl, julolidinyl or kairolyl radical or the radical represented by B, and B represents a family of indolizine radicals. The compounds of this invention are eligible for use in pressure-sensitive and heat-sensitive record materials and manifold marking systems.

Chromogenic compounds of normally colorless form are disclosed having the following structural formula: ##STR1## wherein E represents a six-membered aromatic or heterocyclic ring which may have an aromatic condensed ring and both the E ring and the condensed ring may be substituted, A represents an optionally substituted aminophenyl, indolyl, benzoindolyl, julolidinyl or kairolyl radical or the radical represented by B, and B represents a family of heterocyclic radicals. The compounds of this invention are eligible for use in pressure-sensitive and heat sensitive record materials and manifold marking systems.

Lactone compounds containing a heterocyclic radical

Chromogenic compounds of normally colorless form are disclosed having the following structural formula: ##STR1## wherein E represents a six-membered aromatic or heterocyclic ring which may have an aromatic condensed ring and both the E ring and the condensed ring may be substituted, A represents an optionally substituted aminophenyl, indolyl, benzoindolyl, julolidinyl or kairolyl radical or the radical represented by B, and B represents a family of indolizine radicals. The compounds of this invention are eligible for use in pressure-sensitive and heat sensitive record materials and manifold marking systems.

A chromogenic compound of normally colorless form is disclosed having the following structural formula: ##STR1## wherein A can be ##STR2## T, Q, X, Y and Z can be, among several others, hydrogen, alkyl, alkoxy, aryl, and heterocyclic, substituted and unsubstituted; and E can be a broad family of aromatic and heterocyclic structures. The compound is eligible for use in pressure-sensitive record materials and manifold marking systems. Because of light absorption characteristics, selected compounds of this invention are especially useful where machine readability and machine copiability are important.

Vinyl phthalide color formers

A chromogenic compound of normally colorless form is disclosed having the following structural formula: ##STR1## wherein A and B can be ##STR2## X and Y can be aryl and heterocyclic, each substituted Z is hydrogen and E can be tetrachloro-and tetrabromo-substituted ##STR3## STRUCTURES. The compound is eligible for use in pressure-sensitive record materials and manifold marking systems. Because of light absorption characteristics, selected compounds of this invention are especially useful where machine readability and machine copiability are important.

Di-vinyl color formers

A process for preparing a chromogenic compound of normally colorless form is disclosed; -- the chromogenic compound having the following structural formula: ##STR1## R can be, among several others, hydrogen, alkyl, alkoxy, aryl, and heterocyclic, substituted and unsubstituted; and E can be a broad family of aromatic and heterocyclic structures. The compound is eligible for use in pressure-sensitive record materials and manifold marking systems.

Chromogenic derivatives of bis-1,1-disubstituted ethylene and a process

A chromogenic compound of normally colorless form is disclosed having the following structural formula: ##STR1## wherein A and B can be ##STR2## T, X, Y and Z can be, among several others, hydrogen, alkyl, alkoxy, aryl, and heterocyclic, substituted and unsubstituted; and E can be a broad family of aromatic and heterocyclic structures. The compound is eligible for use in pressure-sensitive record materials and manifold marking systems. Because of light absorption characteristics, selected compounds of this invention are especially useful where machine readability and machine copiability are important.

Derivatives of dianhydrides as vinyl color formers

A chromogenic compound of normally colorless form is disclosed having the following structural formula: ##STR1## T, Q, X, Y and Z can be, among several others, hydrogen, alkyl, alkoxy, aryl, and heterocyclic, substituted and unsubstituted; and E can be a broad family of aromatic and heterocyclic structures. The compound is eligible for use in pressure-sensitive record materials and manifold marking systems. Because of light absorption characteristics, selected compounds of this invention are especially useful where machine readability and machine copiability are important.

Aminophenyl lactone compounds containing an ethyleno group

A chromogenic compound of normally colorless form is disclosed having the following structural formula: ##STR1## wherein X and Y can be ##STR2## and R can be hydrogen, chlorine, nitro, phenyl, benzyl, alkyl, alkoxy, and dialkylamino. The compound is eligible for use in pressure-sensitive record material and mark-forming manifold systems.

Chromogenic furoquinoxalines

A chromogenic compound of normally colorless form is disclosed having the following structural formula: ##STR1## wherein A and B can be ##STR2## X, Y and Z can be, among several others, hydrogen, alkyl, alkoxy, aryl, and heterocyclic, substituted and unsubstituted; and E can be a broad family of aromatic and heterocyclic structures. The compound is eligible for use in pressure-sensitive record materials and manifold marking systems. Because of light absorption characteristics, selected compounds of this invention are especially useful where machine readability and machine copiability are important.

Di-vinyl phthalides color formers

A chromogenic compound of normally colorless form is disclosed having the following structural formula: ##STR1## wherein A can be aminophenyl, indolyl, and benzoindolyl, substituted or not; B can be benzoindolyl, substituted or not; and E can be a broad family of aromatic and heterocyclic structures. The compound is eligible for use in pressure-sensitive record materials and manifold marking systems. Because of light absorption characteristics, selected compounds of this invention are especially useful where broad spectrum absorption and machine readability are important.

Growing community of inventors

Appleton, WI, United States of America

Sheldon Farber