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:
Nov. 10, 1981
Filed:
Jul. 03, 1980
Christopher J AuClair, Fairport, NY (US);
Chin H Lu, Webster, NY (US);
Xerox Corporation, Stamford, CT (US);
Abstract
This invention relates to a process for the preparation of dry positively charged toner particles, and more spceifically a polymerization process for preparing dry positively charged toner resins, containing a charge control agent, or additive which has a dual function, as a wetting agent in the polymerization process, and as a charge control agent for the toner resin, whereby the charge control agent is firmly bonded (attached) to the toner resin and is uniformly dispersed in the resin, or emulsion polymerization of a monomer material, a pigment and a charge control additive. As a result of the polymerization there is formed a dry positively charged toner resin which has attached thereto the charge control agent.