Patent ID: 7585603

Claim:
A curable resin composition comprising: a resol type phenolic resin; a charge transportable material having a reactive functional group; and at least one of an organic sulfonic acid and its derivative; wherein the charge transportable material having a reactive functional group comprises one or more of a compound represented by formula (II), (III), (IV) or (XX): F[—(X 2 ) n2 —(R 2 ) n3 -(Z 2 ) n4 G] n5 (II) wherein F represents an organic group derived from a compound having a positive hole-transporting property; X 2 represents an oxygen atom or a sulfur atom; R 2 represents an alkylene group; Z 2 represents an oxygen atom, a sulfur atom, NH, or COO; G represents an epoxy group; n2 and n3 each represent 0 or 1; n4 represents 1; and n5 represents an integer of from 1 to 4; wherein F represents an organic group derived from a compound having a positive hole-transporting property; T represents a divalent group; Y represents an oxygen atom or a sulfur atom; R 3 , R 4 and R 5 each represents a hydrogen atom or a monovalent organic group; R 6 represents a monovalent organic group; m2 represents 1; and n6 represents an integer of from 1 to 4; provided that R 5 and R 6 may be bonded to each other to form a heterocyclic ring with Y as a hetero atom; wherein F represents an organic group derived from a compound having a positive hole-transporting property; T represents a divalent group; R 7 represents a monovalent organic group; m3 represents 0 or 1; and n7 represents an integer of from 1 to 4; wherein X 11 , X 12 and X 13 each represents a halogen atom, an alkyl group having from 1 to 10 carbon atoms, an alkoxyl group having from 1 to 10 carbon atoms, a substituted or unsubstituted aryl group, an aralkyl group having from 7 to 10 carbon atoms, a substituted or unsubstituted styrvl group, a substituted or unsubstituted butadiene group, or a substituted or unsubstituted hydrazone group; R 21 , R 22 and R 23 each represents one selected from the group consisting of a methyl group, ethyl group, n-propyl group, i-propyl group, i-butyl group, hydroxylethyl group, methoxyethyl group, ethoxymethyl group, methoxy group, ethoxy group, and propoxy group; L 1 , L 2 and L 3 each represents an alkylene group; p1, p2 and p3 each represents an integer from 0 to 2; and q1, q2 and q3 each represents 0 or 1, and satisfies q1+q2+q3≧1.