Patent ID: 8597864

Claim:
A photoreceptor for electrophotography, comprising: a conductive substrate; a photosensitive layer provided on the conductive substrate and containing a resin binder that is a copolymerized polyallylate resin represented by a chemical structural formula (1) comprised of structural units (A) and (B), and at least two siloxane structural units (C), (D), (E) and (F) that follow: where symbols a, b, c, d, e and f represent molar percentages (mol %) of the structural units (A), (B), (C), (D), (E) and (F), respectively, in the chemical structural formula (1) with the sum (a+b+c+d+e+f) being 100 mol %; R 1 and R 2 , which may be identical or different, each represent a hydrogen atom, an alkyl group having 1 to 8 carbon atoms, a cycloalkyl group which may be substituted, or an aryl group which may be substituted, or R 1 and R 2 may form a cyclic structure together with the carbon atom to which R 1 and R 2 are bonded, while the cyclic structure may have one or two arylene groups bonded thereto; R 3 to R 18 , which may be identical or different, each represent a hydrogen atom, an alkyl group having 1 to 8 carbon atoms, a fluorine atom, a chlorine atom, or a bromine atom; R 19 represents a hydrogen atom, an alkyl group having 1 to 20 carbon atoms, an alkylene group having 1 to 20 carbon atoms, an aryl group which may be substituted, a cycloalkyl group which may be substituted, a fluorine atom, a chlorine atom, or a bromine atom; and symbols s and t each represent an integer of 1 or greater.