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:
May. 09, 1995
Filed:
May. 21, 1993
Applicant:
Inventors:
Hadi K Mahabadi, Toronto, CA;
Enno E Agur, Toronto, CA;
Hui Chang, Pittsford, NY (US);
Gerald R Allison, Oakville, CA;
Michael S Hawkins, Cambridge, CA;
Joo T Chung, Penfield, NY (US);
Assignee:
Xerox Corporation, Stamford, CT (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
525437 ; 264211 ; 26421124 ; 430 31 ; 523500 ; 523512 ; 524854 ; 526 78 ; 526 86 ; 526227 ; 526321 ; 528272 ;
Abstract
A one step process for the preparation of toner compositions which comprises adding to an extruder a base resin, initiator, pigment, and optional charge enhancing additive; effecting crosslinking of the base resin in the extruder to provide a toner comprising a pigment, optional charge additive and crosslinked resin comprising linear portions and crosslinked portions; and wherein said crosslinked portions are comprised of densely crosslinked microgel particles.