Abstract: Novel phthalocyanine pigments having the structure: ##STR1## wherein: R.sub.1 represents ##STR2## n represents 1, 2, 3 or any combination of 1, 2 and 3. R.sub.2, R.sub.3, R.sub.4 and R.sub.5 represent alkyl, alkylaryl, alkoxy, alkoxyaryl, cycloalkyl, aryl, aralkyl or aryloxy;R.sub.6 represents hydrogen or chlorine and AlPc represents ##STR3## are useful in electrographic developers and photoelectrophoretic imaging materials and processes.

Abstract: Electrophotosensitive materials having the structure ##STR1## wherein: M and N may be zero, one or two;L.sup.1, L.sup.2, L.sup.3, L.sup.4, L.sup.5, L.sup.6, and L.sup.7 may be cyano, hydrogen, substituted or unsubstituted alkyl, alkoxy, aralkyl, aryl or heterocycyl and in addition any two of L.sup.1, L.sup.2 and L.sup.3 and any two of L.sup.4, L.sup.5, L.sup.6 and L.sup.7 may together represent the elements needed to complete a carbocyclic or heterocyclic ring having from 5-12 carbon atoms;A.sup.1 may be the same as A.sup.2 and in addition may represent a substituted or unsubstituted aryl group;A.sup.2 represents a basic substituted or unsubstituted heterocyclic nucleus; andB.sup.1 and B.sup.2 represent cyano, cyanoaryl, carboxy, alkoxycarbonyl, aryloxycarbonyl, alkylsulfonyl, acyl, arylcarbonyl, heteroyl groups such as benzofuroyl, nitro, nitro substituted aryl, sulfonyl, fluorosulfonyl, trifluoromethylsulfonyl, carbamoyl, arylcarbamoyl, and alkylcarbamoyl orB.sup.2 may be combined with .dbd.CL.sup.4 -CL.

Abstract: In general, materials having the structure ##STR1## wherein A represents phenylene, napthylene, anthracenediyl, and dibenzothien-diyl;R.sub.1 and R.sub.2, which may be the same or different when taken alone represent hydrogen, cyano, alkylcarbonyl and arylcarbamoyl, arylcarbonyl, cyanoaryl;R.sub.1 and R.sub.2, when taken together, represent sufficient atoms to form substituted and unsubstituted radicals selected from the group consisting of furanylidene, fluorenylidene, pyrimidinylidene, thiazolidinylidene, pyrrolinyl, and indenyl, isoxazolinylidene, pyrazolinylidene and indanylidene, wherein said substituents are selected from the group consisting of hydrogen, cyano, aryl, oxo, thioxo, nitro, alkyl, nitroaryl, carbamoyl and cyanoalkyl; andalkyl represents an alkyl group having from one to six carbon atoms; aryl represents an aromatic nucleus selected from the group consisting of benzene, napthalene or anthracene, are useful in electrophoretic migration imaging processes.

Abstract: Electrophotosensitive materials having the structure ##STR1## wherein: M and N may be zero, one or two;L.sup.1, L.sup.2, L.sup.3, L.sup.4, L.sup.5, L.sup.6, and L.sup.7 may be cyano, hydrogen, substituted or unsubstituted alkyl, alkoxy, aralkyl, aryl or heterocycyl and in addition any two of L.sup.1, L.sup.2 and L.sup.3 and any two of L.sup.4, L.sup.5, L.sup.6 and L.sup.7 may together represent the elements needed to complete a carbocyclic or heterocyclic ring having from 5-12 carbon atoms;A.sup.1 may be the same as A.sup.2 and in addition may represent a substituted or unsubstituted aryl group;A.sup.2 represents a basic substituted or unsubstituted heterocyclic nucleus; andB.sup.1 and B.sup.2 represent cyano, cyanoaryl, carboxy, alkoxycarbonyl, aryloxycarbonyl, alkylsulfonyl, acyl, arylcarbonyl, heteroyl groups such as benzofuroyl, nitro, nitro substituted aryl, sulfonyl, fluorosulfonyl, tirfluoromethylsulfonyl, carbamoyl, arylcarbamoyl, and alkylcarbamoyl orB.sup.2 may be combined with .dbd.CL.sup.4 --CL.

Abstract: Electrophotosensitive materials having the structure ##STR1## wherein: Z.sup.1 and Z.sup.2 represent a basic type heterocyclic nucleus;Y represents N or a methine carbon C--G.sup.1 ;G.sup.1 and G.sup.2 may be the same or different and each is H, alkyl, or aryl or taken together complete a mononuclear or fused polynuclear carbocyclic ring;A.sup.1 and A.sup.2 represent alkyl, aryl, carboxy, alkoxycarbonyl, cyano, nitro or together form a heterocyclic nucleus;R.sup.1 and R.sup.2 may be the same or different and each may represent H, alkyl, aralkyl or aryl;R.sup.3 and R.sup.4 represent hydrogen, alkyl, aryl, cyano, or taken together with the atoms to which they are attached represent a 5 to 6 member carbocyclic ring;m and n may be the same or different and may be 0 or 1;p, q and r, which may be the same or different, represent 0, 1 or 2.

Abstract: In general, materials having the structure ##STR1## wherein n equals 1 or 2;A represents phenylene, naphthylene, anthracenyl, anthracenediyl, and dibenzothien-diyl;R.sub.1 and R.sub.2 which may be the same or different when taken alone represent hydrogen, cyano, alkylcarbonyl and arylcarbamoyl, arylcarbonyl, cyanoaryl;R.sub.1 and R.sub.2, when taken together, represent sufficient atoms to form substituted and unsubstituted radicals selected from the group consisting of furanylidene, fluorenylidene, pyrimidinylidene, thiazolidinylidene, pyrrolinyl, and indenyl, isoxazolinylidene, pyrazolinylidene and indanylidene, wherein said substituents are selected from the group consisting of hydrogen, cyano, aryl, oxo, thioxo, nitro, alkyl, nitroaryl, carbamoyl and cyanoalkyl; andalkyl represents an alkyl group having from one to six carbon atoms; aryl represents an aromatic nucleus selected from the group consisting of benzene, naphthalene or anthracene, are useful in electrophoretic migration imaging processes.

Abstract: Electrophotosensitive materials having the structure ##STR1## wherein: a and b represent zero, one or two;L.sup.1 through L.sup.7, which may be the same or different represent hydrogen, alkyl, aralkyl, aryl or dialkylaminoarylvinyl; or any two of L.sup.1, L.sup.2, and L.sup.3 or any two of L.sup.4, L.sup.5, L.sup.6 and L.sup.7 may, together with the atoms to which they are attached, represent the elements needed to complete a carbocyclic ring;R represents alkyl, aryl, nitroaryl or hydrogen;A.sup.1 represents aryl or a heterocyclic nucleus including those nuclei defined for A.sup.2 below;A.sup.2 represents a N-alkyl substituted nucleus of the type used in cyanine dyes.

Abstract: Electrophotosensitive materials having the structure ##STR1## wherein R represents a basic heterocyclic nucleus as well as groups such as hydrogen, alkyl, aryl, aralkyl, etc.;A.sub.1 represents a wide variety of basic heterocyclic nuclei;A.sub.2 represents aryl or may be the same as A.sub.1 ;G represents O or S;M is 0 to 3;N is 0 to 1; andL.sup.1, L.sup.2, L.sup.3, L.sup.4 and L.sup.5 represetn hydrogen, alkyl or aryl.

Abstract: Electrophotosensitive materials having the structure ##STR1## wherein: r and s may be zero, one two or three;R.sup.1 and R.sup.2 may be the same or different and each may represent hydrogen, alkyl, aryl, alkoxyalkyl or alkoxyaryl;Y represents O or S;L.sup.1, L.sup.2, L.sup.3, L.sup.4 and L.sup.5 may be the same or different, represent hydrogen, alkyl, aryl or aralkyl and in addition either L.sup.1 and L.sup.2 or any two of L.sup.3, L.sup.4 and L.sup.5, together with the atoms to which they are attached, may represent the elements needed to complete a carbocyclic ring;A.sup.1 and A.sup.2 represent a substituted or unsubstituted heterocyclic nucleus.

Abstract: Electrophotographic papers comprising electrically conducting paper supports and photoconductive insulating compositions in the form of organic photoconductive dispersions are described. Particles of certain polyphenyl organic photoconductors with para-linked phenyl groups, or polyarylated unsaturated organic photoconductors are dispersed in cellulose nitrate to provide useful photoconductive insulating dispersions.

Abstract: Sensitizers for photoconductive compositions and elements are disclosed. The sensitizers are 2,4,6 tri substituted pyrylium dye salts wherein at least one of said substituents is a 5 or 6 membered heterocyclic ring having at least one atom selected from the group consisting of N, O and S.

Abstract: Electrophotosensitive materials having the structure ##STR1## wherein: A AND B REPRESENT ZERO, ONE OR TWO;L.sup.1 through L.sup.7, which may be the same or different represent hydrogen, alkyl, aralkyl, aryl or dialkylaminoarylvinyl; or any two of L.sup.1, L.sup.2, and L.sup.3 or any two of L.sup.4, L.sup.5, L.sup.6 and L.sup.7 may, together with the atoms to which they are attached, represent the elements needed to complete a carbocyclic ring;R represents alkyl, aryl, nitroaryl or hydrogen;A.sup.1 represents aryl or a heterocyclic nucleus including those nuclei defined for A.sup.2 below;A.sup.2 represents a N-alkyl substituted nucleus of the type used in cyanine dyes.

Abstract: Electrophotosensitive materials having the structure ##STR1## wherein R represents a basic heterocyclic nucleus as well as groups such as hydrogen, alkyl, aryl, aralkyl, etc.;A.sub.1 represents a wide variety of basic heterocyclic nuclei;A.sub.2 represents aryl or may be the same as A.sub.1 ;G represents O or S;M is 0 to 3;N is 0 to 1; andL.sup.1, l.sup.2, l.sup.3, l.sup.4 and L.sup.5 represent hydrogen, alkyl or aryl.

Abstract: In general, materials having the structure ##STR1## WHEREIN N EQUALS 1 OR 2;A represents phenylene, naphthylene, anthracenyl, anthracenediyl, and dibenzothien-diyl;R.sub.1 and R.sub.2, which may be the same or different when taken alone represent hydrogen, cyano, alkylcarbonyl and arylcarbamoyl, arylcarbonyl, cyanoaryl;R.sub.1 and R.sub.2, when taken together, represent sufficient atoms to form substituted and unsubstituted radicals selected from the group consisting of furanylidene, fluorenylidene, pyrimidinylidene, thiazolidinylidene, pyrrolinyl, and indenyl, isoxazolinylidene, pyrazolinylidene and indanylidene, wherein said substituents are selected from the group consisting of hydrogen, cyano, aryl, oxo, thioxo, nitro, alkyl, nitroaryl, carbamoyl and cyanoalkyl; andAlkyl represents an alkyl group having from one to six carbon atoms; aryl represents an aromatic nucleus selected from the group consisting of benzene, naphthalene or anthracene, are useful in electrophoretic migration imaging processes.

Abstract: Trans-epindolidione is a useful yellow material in forming photoelectrophoretic migration images.

Abstract: An improved electrophoretic imaging process is provided wherein the improvement comprises the use of electrostatic charge-bearing particles having an electrically photosensitive pigment which is the reaction product of 2,3-naphthalenediol and a diazonium salt. Preferred pigments have the following structure: ##STR1## wherein: R.sup.1 is a lower alkoxy group or --OCH.sub.2 CONH.sub.2 ;R.sup.2 is H or NO.sub.2 ; andR.sup.3 is H or --SO.sub.2 NH.sub.2.