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US 6,114,076 AGranted
Reactive melt mixing processes
AssigneeXerox Corporation
InventorsPeter G. Odell, Stephan V. Drappel, Michael S. Hawkins
Life of this patent
Estimating the term…
Abstract
A reactive melt mixing process for the preparation of a low fix temperature toner resin, comprising: (a) mixing a reactive base resin, an initiator, and a polyester with amine functionality, and (b) crosslinking the resulting polymer melt under high shear to form a crosslinked toner resin.
Claims20
A reactive melt mixing process for the preparation of a low fix temperature toner resin, comprising:
- (a) mixing a reactive base resin, an initiator, and a polyester with amine functionality, wherein said base resin is an unsaturated resin, and
- (b) crosslinking the resulting polymer melt under high shear to form a crosslinked toner resin, and wherein there occurs a reaction between said initiator and said amine functionality thereby forming free radicals which attack the unsaturated sites of the base resin causing crosslinking thereof, and wherein said crosslinked toner resin is substantially free of sol.
A reactive melt mixing process for the preparation of a low fix temperature toner resin consisting essentially of:
- (a) mixing a reactive base resin, an initiator, and a polyester with amine functionality, wherein said base resin is an unsaturated resin, and
- (b) crosslinking the resulting polymer melt under high shear to form a crosslinked toner resin, and wherein there occurs a reaction between said initiator and said amine functionality thereby forming free radicals which attack the unsaturated sites of the base resin causing crosslinking thereof, and wherein said crosslinked toner resin is substantially free of sol.
Dependencies are inferred from the claim text.