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US 5,401,602 AGranted
Reactive melt mixing process for preparing cross-linked toner resins and toners therefrom
AssigneeXerox Corporation
InventorsHadi K. Mahabadi, Enno E. Agur, Gerald R. Allison, Michael S. Hawkins, Stephan Drappel, Maria N. V. McDougall, Bernard Grushkin, Thomas R. Hoffend, Angelo J. Barbetta
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Abstract
Low fix temperature toner resins are fabricated by a reactive melt mixing process wherein polymer resins are cross-linked at high temperature and high shear. The resins are particularly suitable for high speed fusing, show excellent offset resistance and wide fusing latitude and superior vinyl offset properties.
Claims21
A reactive melt mixing process of preparing low fix temperature toner substantially free of sol, comprising the steps of:
- a) melting a reactive base resin, thereby forming a polymer melt;
- b) cross-linking said reactive resin of the polymer melt under high shear to form a cross-linked toner resin having a cross-linking distance of 0 or 1 atom and being substantially free of sol;
- and
- c) forming solid toner particles from said cross-linked toner resin.
1 more element
Dependencies are inferred from the claim text.