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. 11, 2007
Filed:
Oct. 31, 2004
Gay L. Herman, Cottage Grove, MN (US);
Ronald J. Moudry, Woodbury, MN (US);
Zbigniew Tokarski, Woodbury, MN (US);
Charles W. Simpson, Lakeland, MN (US);
Leonard Stulc, Shaffer, MN (US);
A. Kristine Fordahl, St. Paul, MN (US);
James A. Baker, Hudson, WI (US);
Gay L. Herman, Cottage Grove, MN (US);
Ronald J. Moudry, Woodbury, MN (US);
Zbigniew Tokarski, Woodbury, MN (US);
Charles W. Simpson, Lakeland, MN (US);
Leonard Stulc, Shaffer, MN (US);
A. Kristine Fordahl, St. Paul, MN (US);
James A. Baker, Hudson, WI (US);
Samsung Electronics Company, Suwon, KR;
Abstract
Dry electrographic toner compositions are provided comprising a plurality of dry toner particles, wherein the toner particles comprise polymeric binder comprising at least one amphipathic copolymer comprising one or more S material portions and one or more D material portions. The dry electrographic toner composition comprises a wax associated with the dry toner particles, wherein a substantial portion of the wax is entrained in the toner particle and a substantial portion of the wax is associated with the toner particle at the surface thereof. Methods of making electrographic toner compositions are also provided comprising preparing polymeric binder particles comprising at least one amphipathic copolymer comprising one or more S material portions and one or more D material portions, and milling the particles before or after formulation as toner particles with wax in the liquid carrier prior to drying to form the dry toner composition. These toner compositions provide images having excellent durability and erasure resistance properties at low fusion temperatures and with little undesired offset.