Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Process of making radiation-sensitive product
Patent
1991-09-17
1994-04-05
Goodrow, John L.
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Process of making radiation-sensitive product
264 24, 264126, B29C 504, B29C 3908
Patent
active
053003918
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.
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Darcy John J.
Fabian Ellis
Swain Eugene A.
Byorick Judith L.
Goodrow John L.
Xerox Corporation
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