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IMPROVED SUBSTRATES FOR ORGANIC PHOTOCONDUCTORS

IP.com Disclosure Number: IPCOM000027037D
Original Publication Date: 1994-Dec-31
Included in the Prior Art Database: 2004-Apr-07

Publishing Venue

Xerox Disclosure Journal

Abstract

Photoconductors for electrophotographic imaging processes can be prepared by applying an organic photoconductive material to a substrate of the desired size and shape, such as a drum or a belt. One method for preparing suitable substrates for organic photoconductors entails a centrifugal spin casting process, wherein a stream of high viscosity liquid monomer is delivered into a cylindrical mold which is spinning at high speed (about 105 revolutions per minute, for example). Rotation of the mold is maintained while the viscous monomer flows out to a uniform thickness inside the mold as a result of centrifugal force. Thereafter, the mold is heated to induce thermal crosslinking and/or polymerization of the monomer, thereby converting it to a solid cylindrical tube. The finished substrate tube is then released from the mold.