Browse Prior Art Database

Preparation of Photoconductor Structures Using Uv Curing

IP.com Disclosure Number: IPCOM000062019D
Original Publication Date: 1986-Sep-01
Included in the Prior Art Database: 2005-Mar-09
Document File: 1 page(s) / 12K

Publishing Venue

IBM

Related People

Cox, RJ: AUTHOR [+3]

Abstract

The photoconductor used in many photocopiers consists of a layered organic media coated onto an aluminumized-Mylar substrate. (Mylar is the Registered Trademark of DuPont for poly(ethylene terephthalates.) The photoconductors usually consis at least three layers. The binder layer provides for proper adhesion of the charge generation layer (CGL) to the aluminum substrate; the CGL contains a dye-like chlorodiane blue (CDB) that generates electron-hole pairs when exposed to light of the proper wavelength; the charge transport layer contains a material like p-diethylaminobenzaldehyde hydrazone (DEH) imbedded in a polymeric matrix for the transport of holes from the CGL to the surface of the photoconductor.

This text was extracted from a PDF file.
This is the abbreviated version, containing approximately 78% of the total text.

Page 1 of 1

Preparation of Photoconductor Structures Using Uv Curing

The photoconductor used in many photocopiers consists of a layered organic media coated onto an aluminumized-Mylar substrate. (Mylar is the Registered Trademark of DuPont for poly(ethylene terephthalates.) The photoconductors usually consis at least three layers. The binder layer provides for proper adhesion of the charge generation layer (CGL) to the aluminum substrate; the CGL contains a dye-like chlorodiane blue (CDB) that generates electron-hole pairs when exposed to light of the proper wavelength; the charge transport layer contains a material like p-diethylaminobenzaldehyde hydrazone (DEH) imbedded in a polymeric matrix for the transport of holes from the CGL to the surface of the photoconductor.

We describe here a process and formulation for producing a CGL. This method does not require solvents and may be conducted in a small clean room to control contamination of the sublayers.

For forumulation of a binder layer, a photoinitiator such as 2,2-dimethoxy-2- phenylacetophenone is mixed with a monomeric acrylate or methacrylate such as 1,6-hexanediol diacrylate to form an N4% w/w solution. This mixture is then coated onto an aluminum coated Mylar substrate and exposed to UV light while under a blanket of nitrogen.

For the charge generation layer, CDB was dispersed in a commercial monomeric acrylate like 1,6-hexanediol diacrylate, for example, and a photoinitiator added (2,2-dimethoxy-2-phenylacetophenon...