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:
Feb. 11, 1992
Filed:
Jul. 12, 1990
Abstract
Photosensitive materials of the positive charging type which are useful in electrophotography are described. The material comprises a conductive support of any desired form and a photoconductive layer formed on the support. The photoconductive layer is made of X-type and/or .tau.-type phthalocyanine compound dispersed in a binder resin. The compound is dispersed partly in a molecular state and partly in a particulate state in the resin. To make such a dispersion, the compound is agitated in a solvent along with the binder resin until charge transportability and charge generating ability are developed in the resultant photoconductive layer. Fundamentally, single-layer photosensitive materials with good photosensitive characteristics and a high heat resistance can be obtained.