Patent ID: 7651828
Filing Date: 2010-01-26
Classification: G03G

Abstract:
1. A method of preparing an electrophotographic photoreceptor, comprising: coating a first liquid comprising a blocked isocyanate compound, an oil-free alkyd resin including a hydroxyl group and a basic amine on an electroconductive substrate, reacting the blocked isocyanate compound, the oil-free alkyd resin including a hydroxyl group and the basic amine to form a crosslinked reaction product as an undercoat layer overlying the electroconductive substrate; and coating a second liquid on the undercoat layer to form the photosensitive layer thereon; wherein an amount of the basic amine is from 0.0001 to 5% by weight based on total weight of the oil-free alkyd resin and blocked isocyanate compound; and the basic amine is one selected from the group consisting of ammonia, monoethanol amine, diethanol amine, triethanol amine, diethyl ethanolamine, methyl ethanolamine, ethylene diamine, diamino butane, diamino propane, hexane diamine dodecane diamine, diethylene triamine, triethylene tetramine and polyether diamine.