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:
Sep. 25, 2001
Filed:
Aug. 30, 1999
Applicant:
Inventors:
Dinesh Tyagi, Fairport, NY (US);
Donna A. DiPrima, Rochester, NY (US);
Assignee:
NexPress Solutions LLC, Rochester, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08K 3/00 ;
U.S. Cl.
CPC ...
C08K 3/00 ;
Abstract
Polymeric powders of small particle size and size distribution and of irregular morphology are prepared by a limited coalescence procedure wherein a polymer in an organic solvent is dispersed by high shear agitation in an aqueous phase containing colloidal stabilizer particles having opposite electrostatic charges. The organic solvent is evaporated and the polymer particles are recovered from the aqueous medium. The particles are of irregular shape and narrow particle size distribution and have superior electrostatic transfer properties when used as electrostatographic dry toners.