Patent 7202003 was granted and assigned to Samsung Electronics on April, 2007 by the United States Patent and Trademark Office.
Dry electrophotographic toner compositions are provided comprising an amphipathic copolymer comprising basic functionalities covalently bonded to the amphipathic copolymer. Methods of making the toner compositions are also provided. The present toner compositions exhibit unique charge characteristics and unique chemical and charge interaction properties.