Squarylium charge generating dye and electrophotographic photoconductor
AssigneeInternational Business Machines Corporation
InventorsRobert B. Champ, Robert L. Vollmer
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Abstract
A squarylium dye molecule is synthesized from a phenolic precursor. The resulting hydroxy pyrrolidino squarylium (OHPYRRSQ) dye does not have to be purified in order to provide the dye with a negative response in the Ames test for mutagenicity. A xerographic photoconductor using the molecule shows superior electrophotographic performance.
Claims7
The non-mutagenic dye molecule 2,4-di-(o-hydroxy-p-pyrrolidino phenyl) cyclobutene diylium-1,3-diolate.
An electrophotographic photoconductor including a conductive base, and a charge transport charge generation layer means thereon containing the non-mutagenic charge generating molecule 2,4-di-(o-hydroxy-p-pyrrolidino phenyl) cyclobutene diylium-1,3-diolate.
A xerographic photoconductor comprising a conductive substrate, a charge generation layer containing the generating molecule 2,4-di-(o-hydroxy-p-pyrrolidino phenyl) cyclobutene diylium-1,3-diolate, and a charge transport layer.
Dependencies are inferred from the claim text.