摘要:
Disclosed is an improved layered photoresponsive imaging member comprised of a vacuum evaporated photogenerator layer comprised of fractionally sublimed quinacridone pigments including 2,9-dichloroquinacridone, and an aryl amine hole transport layer comprised of molecules of the following formula ##STR1## dispersed in a resinous binder, and wherein X is selected from the group consisting of halogen and alkyl.
摘要:
Disclosed is an improved layered photoresponsive imaging member comprised of a supporting substrate, a vacuum evaporated photogenerator layer comprised of certain pyranthrone pigments including tribromo-8,16-pyranthrenedione and trichloro-8,16-pyranthrenedione; and an aryl amine hole transport layer comprised of molecules of the following formula: ##STR1## dispersed in a resinous binder and wherein X is selected from the group consisting of halogen and alkyl.
摘要:
Disclosed is an improved layered photoresponsive imaging member comprised of a supporting substrate, a vacuum evaporated photogenerator layer comprised of certain fractionaklly sublimed indigoid pigments such as 4,4,7,7'-tetrachlorothioindigo; and an aryl amine hole transport layer comprised of molecules of the following formula: ##STR1## dispersed in a resinous binder and wherein X is selected from the group consisting of halogen and alkyl.
摘要:
A mixture comprised of at least two perylenes and wherein the mixture includes symmetrical perylenes, unsymmetrical perylenes, and unsymmetrical perylenes with dissimilar R.sub.1 and R.sub.2 terminal substituents. The perylene mixtures can be selected for photoconductive imaging members.
摘要:
Photoconductive imaging members comprised of a mixture of dimeric perylenes as a charge generator, wherein said mixture comprises at least perylenes encompassed by the following formulas, or mixtures thereof ##STR1## wherein R is hydrogen, alkyl, cycloalkyl, oxaalkyl, substituted alkyl, aryl, substituted aryl, aralkyl or substituted aralkyl; and X is a symmetrical bridging moiety, and X--Y represents an unsymmetrical bridging moiety.
摘要:
Disclosed are fluorinated squaraine compounds of the following formula: ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 are independently selected from the group consisting of alkyl, aryl, and heterocyclic substituents.
摘要:
Disclosed are fluorinated squaraine compounds of the following formula: ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 are independently selected from the group consisting of alkyl, aryl, and heterocyclic substituents.
摘要:
A layered imaging member comprised of a photogenerating layer of titanyl phthalocyanine prepared by depositing amorphous titanyl phthalocyanine on a substrate maintained at a temperature of from below 25.degree. to about minus 30.degree. C.; and contacting the substrate product with an aliphatic alcohol.
摘要:
A polyarylamine polymer represented by formula ##STR1## wherein: n is between about 5 and about 5,000, or 0 if p>0,o is between about 0 and about 5,000, or is 0 if p>0 or n=0,p is between about 2 and about 100, or is 0 if n>0,X' and X" are indendently selected from a group having bifunctional linkages,Q is a divalent group derived from certain hydroxy terminated arylamine reactants,Q' is a divalent group derived from a hydroxy terminated polyarylamine containing the group defined for Q and having a weight average molecular weight between about 1000 and about 80,000and the weight average molecular weight of the polyarylamine polymer is between about 10,000 and about 1,000,000.
摘要:
A photoconductive imaging member containing a photogenerating layer comprised of a mixture of perylenes, wherein the mixture comprises, for example, (1) 1,3-bis(n-pentylimidoperyleneimido) propane (Formula A), 1,3-bis(2-methylbutylimido peryleneimido)propane (Formula B) and 1-(n-pentylimidoperyleneimido)-3-(2-methylbutylimidoperyleneimido)-propane (Formula C), and (2) an electron acceptor component Formula A 1,3-bis(n-pentylimidoperyleneimido)propane Formula B 1,3-bis(2-methylbutylimidoperyleneimido)propane Formula C 1-(n-pentylimidoperyleneimido)-3-(2-methylbutylimidoperyleneimido)propane