US 7,479,357 B2 · Electrophotographic organophotoreceptors with novel charge transport materials

Abstract

An organophotoreceptor that includes: (a) a charge transport material having the formula wherein A is selected from heterocyclic groups, naphthyl group, alkylsulfonylphenyl, stilbenyl or the group X, wherein X is represented by the formula B is selected from hydrogen, alkyl group, and an aryl group, with the proviso that when A is naphthyl, B is naphthyl; or where R1 is selected from the group consisting of N-pyrrolyl, N-pyrazolyl, N-tetrazolyl, N-indolyl, N-carbazolyl, N-triazolyl, N-imidazolyl, N-benzimidazolyl, N-indazolyl, and N-benzotriazolyl group, and R3 is a 9-fluorenone group. (b) a charge generating compound; and (c) an electrically conductive substrate.

Claims44

Dependent claims

An organophotoreceptor comprising:

(a) a charge transport material having a central nucleus of the formula
wherein R1 is selected from the group consisting of a sulfolanyl group, a pyrrolyl group, a pyrazolyl group, a tetrazolyl group, an indolyl group, a carbazolyl group, a triazolyl group, an imidazolyl group, a benzimidazolyl group, an indazolyl group, a benzotriazolyl group, an alkylsulfonylphenyl group, and group X, wherein X is represented by the formula
and R2 is selected from the group consisting of hydrogen, an alkyl group, and an aryl group, with the proviso that when R1 is an alkylsulfonylphenyl group, R2 is not hydrogen;
(b) a charge generating compound;
and
(c) an electrically conductive substrate.

3 more elements

An electrophotographic imaging apparatus comprising:

(a) a plurality of support rollers;
and
(b) an organophotoreceptor in the form of a flexible belt threaded around said support rollers, said organophotoreceptor comprising:
(i) a charge transport material having a central nucleus of the formula
wherein R1 is selected from the group consisting of a sulfolanyl group, a pyrrolyl group, a pyrazolyl group, a tetrazolyl group, an indolyl group, a carbazolyl group, a triazolyl group, an imidazolyl group, a benzimidazolyl group, an indazolyl group, a benzotriazolyl group, an alkylsulfonylphenyl group, and group X, wherein X is represented by the formula
and R2 is selected from the group consisting of hydrogen, an alkyl group, and an aryl group, with the proviso that when R1 is an alkylsulfonyiphenyl group, R2 is not hydrogen;
(ii) a charge generating compound;
and
(iii) an electrically conductive substrate.

6 more elements

Dependencies are inferred from the claim text.

Facts

Application

10/243,960Filed 13 Sep 2002 · us provisional application

Priority

14 Sep 2001

Published

US 2003/0104294 A15 Jun 2003

Granted

20 Jan 2009

Term ends

Not estimatedThe source records don’t support an estimate.

Classification3 codes

G03G 5/0612
Acyclic or carbocyclic compounds: containing nitrogen
G03G 5/0616
Containing nitrogen: hydrazines; Hydrazones
G03G
Electrography

Family

Application60/322,135Us provisional application · filed 14 Sep 2001

Application60/322,303Us provisional application · filed 14 Sep 2001

Application60/347,180Us provisional application · filed 8 Jan 2002

Application60/347,183Us provisional application · filed 8 Jan 2002

Application60/347,185Us provisional application · filed 8 Jan 2002

Application60/347,049Us provisional application · filed 8 Jan 2002

Application60/347,186Us provisional application · filed 8 Jan 2002

Application60/347,048Us provisional application · filed 8 Jan 2002

Application60/347,190Us provisional application · filed 8 Jan 2002

US 2003/0104294 A1Pre-grant publication · published 5 Jun 2003

US 7,479,357 B2This patent

From the US filing history. Foreign family members aren’t listed.

Electrophotographic organophotoreceptors with novel charge transport materials

Life of this patent

Electrophotographic organophotoreceptors with novel charge transport materials

Life of this patent

Abstract

Claims44