The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 20, 1991
Filed:
Dec. 01, 1988
Yutaka Akasaki, Kanagawa, JP;
Akihiko Tokida, Kanagawa, JP;
Kaoru Torikoshi, Kanagawa, JP;
Akira Imai, Kanagawa, JP;
Hidemi Suto, Kanagawa, JP;
Fuji Xerox Co., Ltd., Tokyo, JP;
Abstract
A process for preparing a squarylium compound useful as a photoconductive material for an electrophotographic photoreceptor, in which process comprises reacting an arylhydroxycyclobutenedione salt or a hydroxycyclobutenedione derivative with an aniline derivative is disclosed. The process comprises dropwise adding a solution of the arylhydroxycyclobutenedione salt or hydroxycyclobutenedione derivative in a solvent, to an alcohol solution of the aniline derivative in an alcohol solvent. An electrophotographic photoreceptor produced by using the thus obtained squarylium compound exhibits and sensitivity, satisfactory chargeability, low dark decay, low residual potential, and excellent stability after repeated use.