Fibrillated carrier compositions and processes for making and using
AssigneeXerox Corporation
InventorJoseph Mammino
Life of this patent
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Abstract
A carrier comprised of a core with a coating thereover comprised of at least one polymer resin and wherein the outer surface of the coated carrier is fibrillated.
Claims24
A coated carrier for use in electrostatographic imaging processes comprised of core particles comprised of a material selected from iron, ferrites, steel, nickel, magnetites, glass, ceramic composite, plastic, or mixtures thereof, with a coating thereover comprised of at least one polymer resin, wherein the outer surface of the coated carrier is fibrillated, and wherein the fibrillated outer surface is comprised of fibrils of said at least one polymeric resin.
A process for preparing a coated carrier composition comprising:
- providing polymer resin coated carrier particles;
- and
- agitating the polymer resin coated carrier particles with a highly abrading shear stress force of from about 0.5 grams to about 1 kilogram until the resulting outer surface of the coated carrier particles are fibrillated.
A process for preparing a coated carrier composition comprising:
- coating carrier core particles with a solution of at least one polymer resin, a plasticizer compound;
- and a solvent or solvent mixture;
- evaporating the solvent;
- and
- agitating the resulting polymer coated carrier particles with high shear of from about 0.5 grams to about 1 kilograms, until the resulting outer surface of the coated carrier is fibrillated.
A process for preparing a coated carrier composition comprising:
- coating carrier core particles with a mixture of at least one polymer resin, and fibrous particulate additive, and optionally a plasticizer compound;
- and
- agitating the resulting coated carrier particles with high shear of from about 0.5 grams to about 1 kilograms, and wherein the resulting outer surface of the coated carrier particles are fibrillated.
Dependencies are inferred from the claim text.