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:
Dec. 03, 1991
Filed:
May. 23, 1989
Applicant:
Inventor:
Ronald Swidler, Palo Alto, CA (US);
Assignee:
CommTech International Management Corporation, Menlo Park, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G03G / ; G03G / ;
U.S. Cl.
CPC ...
430115 ; 430112 ; 430114 ; 430137 ;
Abstract
A novel liquid developer composition for use in electrophotographic processes, particularly consecutive color toning, is described. The composition contains, dispersed in a hydrocarbon medium, toner particles of colorant-containing resin and an antistatic agent substantially immiscible with the resin. The antistatic agent effectively eliminates the image staining frequently obtained in consecutive color toning processes. Methods for preparing and using the novel composition are also provided.