Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Radiation-sensitive composition or product
Patent
1994-09-07
1996-06-25
Chapman, Mark
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Radiation-sensitive composition or product
430 96, G03G 504
Patent
active
055298699
ABSTRACT:
An organic positive-charging photoconductor (+) OPC is disclosed. The (+) OPC has a conductive substrate; a hydroxy-containing binder component forming a layer greater than or equal to about 1 micron thick on said substrate; an X-type, metal-free phthalocyanine pigment component uniformly distributed throughout said binder component; and a reactive additive component selected from the list of cross-linkable resins, carboxlyic acid anhydrides, aldehydes, poly-ols, alkoxy silane coupling agents, reactive allyl polymers and dismaleimides, the reactive additive component also being uniformly distributed throughout, and being in cross-linked relation with, the hydroxy-containing binder component with an electron withdrawing functional group and an electron donating functional group in the same molecule. The (+) OPC, which may also contain a co-additive component, exhibits increased stability in a laser printing process.
REFERENCES:
patent: 3954467 (1976-05-01), Takimoto et al.
patent: 5183721 (1993-02-01), Kato et al.
Chapman Mark
Hewlett--Packard Company
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