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:
Apr. 05, 1994
Filed:
Sep. 17, 1991
Xerox Corporation, Stamford, CT (US);
Abstract
Disclosed is a process for preparing a multilayered cylindrical article which comprises introducing into a cylindrical mold a composition comprising a liquid, uncured resin material and a magnetically attractable filler material, spinning the mold about its axis, applying a magnetic field to the composition within the mold, thereby attracting the magnetically attractable filler material in the direction dictated by the magnetic field and causing the magnetically attractable filler material and the liquid uncured resin material to separate into layers, and subsequently curing the uncured resin to form a cylindrical article having at least two layers. Subsequent to formation, the multilayered cylindrical article can be coated with additional layers. Further, additional layers can be added to either the inside or outside surface of the cylinder by introducing the additional layer material into the mold and spin casting to form a layer. The cylinders formed by the processes of the present invention can be employed as imaging members in electrographic, ionographic, electrophotographic, and similar imaging processes.