US4959288A
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US
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Photoconductive imaging members with diaryl biarylylamine copolymer charge transport layers
Assignee: Xerox Corp
•
Filing: 1989-04-03
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Granted: 1990-09-25
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Expires: 2009-04-03
Abstract
Abstract A photoconductive imaging member comprised of a photogenerating layer, and a charge transport layer comprised of diaryl biarylylamine copolymers of the formula ##STR1## wherein A and B are independently selected from bifunctional linkages; Z is alkylenedioxy, arylenedioxy, or substituted derivatives thereof; R and R' are alkyl, aryl, substituted alkyl, substituted aryl, alkoxy, or halogen; x and y are mole fractions wherein x and y are greater than 0 and the sum of x and y is equal to 1.0; a and b are the numbers 0, 1 or 2; and n represents the number of monomer segments.
Inventors
- 👤 Beng S. Ong
- 👤 Barkev Keoshkerian
- 👤 Giuseppa Baranyi
- 👤 Dasarao K. Murti
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:32
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/68; C08G63/685; C08G63/6854; C08G63/6856; C08G18/00; C08G18/06; C08G18/28; C08G18/30; C08G18/32; C08G18/3271; C08G18/329; C08G73/00; C08G73/02; C08G73/028; G; G03; G03G; G03G5/00; G03G5/02; G03G5/04; G03G5/06; G03G5/07; G03G5/075; G03G5/076; G03G5/0763; G03G5/0764
Claims Analysis
Total Claims: 39
Claim 1
Independent Claim
97 words
A photoconductive imaging member comprised of a photogenerating layer, and a charge transport layer comprised of diaryl biarylylamine copolymers of the formula ##STR4## wherein A and B are independently selected from bifunctional linkages; Z is alkylenedioxy, arylenedioxy, or substituted derivatives thereof; R and R' are alkyl, aryl, substituted alkyl, substituted aryl, alkoxy, or halogen; x and y are mole fractions wherein x and y are greater than 0 and the sum of x and y is equal to 1.0; a and b are the numbers 0, 1 or 2; and n represents the number of repeating segments.
Claim 2
Dependent Claim
97 words
A photoconductive imaging member comprised of a photogenerating layer, and a charge transport layer comprised of diaryl biarylylamine copolymers of the formula ##STR4## wherein A and B are independently selected from bifunctional linkages; Z is alkylenedioxy, arylenedioxy, or substituted derivatives thereof; R and R' are alkyl, aryl, substituted alkyl, substituted aryl, alkoxy, or halogen; x and y are mole fractions wherein x and y are greater than 0 and the sum of x and y is equal to 1.0; a and b are the numbers 0, 1 or 2; and n represents the number of repeating segments.
Claim 3
Dependent Claim
26 words
A photoconductive imaging member in accordance with claim 1 wherein A is --O--, B is --COO--R"--OCO--, wherein R" is alkylene, arylene, ether, or a polyether segment.
Claim 4
Dependent Claim
13 words
A photoconductive imaging member in accordance with claim 1 wherein A is alkyleneoxy.
Claim 5
Dependent Claim
29 words
A photoconductive imaging member in accordance with claim 1 wherein A is --O--, B is --CONH--R"--NHCO--, and Z is alkylenedioxy or arylenedioxy, wherein R" is alkylene or an arylene.
Claim 6
Dependent Claim
22 words
A photoconductive imaging member in accordance with claim 1 wherein x and y are mole fraction numbers of from 0.01 to 0.99.
Claim 7
Dependent Claim
22 words
A photoconductive imaging member in accordance with claim 2 wherein x and y are mole fraction numbers of from 0.01 to 0.99.
Claim 8
Dependent Claim
33 words
A photoconductive imaging member in accordance with claim 1 wherein R and R' are alkyl of from 1 to about 20 carbon atoms, or aryl of from 6 to about 24 carbon atoms.
Claim 9
Dependent Claim
26 words
A photoconductive imaging member in accordance with claim 1 wherein R or R' are selected from the group consisting of fluorine, chlorine, bromine, and iodine atoms.
Claim 10
Dependent Claim
17 words
A photoconductive imaging member in accordance with claim 1 wherein a and b are equal to 0.
Claim 11
Dependent Claim
13 words
A photoconductive imaging member in accordance with claim 1 containing a supporting substrate.
Claim 12
Dependent Claim
30 words
A photoconductive imaging member in accordance with claim 1 wherein the charge transport layer is comprised of the copolymers of Formulas II, III, IV, V, VI, VII, VIII or IX.
Claim 13
Dependent Claim
33 words
A photoconductive imaging member comprised of a supporting substrate; a photogenerating layer; and a charge transport layer comprised of diaryl biarylylamine copolymers of Formulas II, III, IV, V, VI, VII, VIII or IX.
Claim 14
Dependent Claim
33 words
A photoconductive imaging member comprised of a supporting substrate; a photogenerating layer; and a charge transport layer comprised of diaryl biarylylamine copolymers of Formulas II, III, IV, V, VI, VII, VIII or IX.
Claim 15
Dependent Claim
21 words
A photoconductive imaging member in accordance with claim 1 wherein the photogenerating layer is comprised of organic, or inorganic photoconductive pigments.
Claim 16
Dependent Claim
35 words
A photoconductive imaging member in accordance with claim 13 wherein the photogenerating layer is comprised of a vanadyl phthalocyanine, squaraine, perylene, metal free phthalocyanines, metal phthalocyanines, dibromoanthanthrone photoconductive pigments, selenium, selenium alloys, or trigonal selenium.
Claim 17
Dependent Claim
32 words
A photoconductive imaging member in accordance with claim 11 wherein the photogenerating layer is comprised of selenium, selenium alloys, trigonal selenium, metal phthalocyanine, metal free phthalocyanines, perylenes, squaraines, vanadyl phthalocyanine, or dibromoanthanthrone.
Claim 18
Dependent Claim
32 words
A photoconductive imaging member in accordance with claim 12 wherein the photogenerating layer is comprised of selenium, selenium alloys, trigonal selenium, perylenes, squaraines, metal phthalocyanines, metal free phthalocyanines, vanadyl phthalocyanines or dibromoanthanthrone.
Claim 19
Dependent Claim
24 words
A photoconductive imaging member in accordance with claim 1 wherein the photogenerating layer is situated between the supporting substrate and the charge transport layer.
Claim 20
Dependent Claim
24 words
A photoconductive imaging member in accordance with claim 1 wherein the charge transport layer is situated between the photogenerating layer and the supporting substrate.
Claim 21
Dependent Claim
24 words
A photoconductive imaging member in accordance with claim 10 wherein the supporting substrate is comprised of a conductive component on an organic polymeric composition.
Claim 22
Dependent Claim
35 words
A photoconductive imaging member in accordance with claim 1 wherein the photogenerating pigment is dispersed in a resinous binder in an amount of from about 5 percent by weight to about 95 percent by weight.
Claim 23
Dependent Claim
25 words
A photoconductive imaging member in accordance with claim 20 wherein the resinous binder is a polyester, polyvinyl butyral, a polycarbonate, polyvinyl formal, or polyvinyl carbazole.
Claim 24
Dependent Claim
38 words
A photoconductive imaging member in accordance with claim 1 wherein the copolymer charge transport layer is doped with a hole transport molecule in an amount of from about 1 percent by weight to about 20 percent by weight.
Claim 25
Dependent Claim
20 words
A photoconductive imaging member in accordance with claim 1 containing a metal oxide charge blocking layer and an adhesive layer.
Claim 26
Dependent Claim
19 words
A photoconductive imaging member in accordance with claim 1 containing a polysilane charge blocking layer and an adhesive layer.
Claim 27
Dependent Claim
32 words
A method of imaging which comprises generating an electrostatic image on the imaging member of claim 1; subsequently transferring this image to a suitable substrate; and thereafter permanently affixing the image thereto.
Claim 28
Dependent Claim
32 words
A method of imaging which comprises generating an electrostatic image on the imaging member of claim 11; subsequently transferring this image to a suitable substrate; and thereafter permanently affixing the image thereto.
Claim 29
Dependent Claim
37 words
A method of imaging in accordance with claim 25 wherein the hole transport layer is comprised of a copolymer selected from the group consisting of copolymers of Formulas II, III, IV, V, VI, VII, VIII or IX.
Claim 30
Dependent Claim
79 words
Copolymers of formula ##STR5## wherein A and B are independently selected from bifunctional linkages; Z is alkylenedioxy, arylenedioxy, or substituted derivatives thereof; R and R' are independently alkyl, aryl, substituted alkyl, substituted aryl, alkoxy, or halogen; x and y are mole fractions wherein x and y are greater than 0 and the sum of x and y is equal to 1.0; a and b are the numbers 0, 1 or 2; and n represents the number of repeating segments.
Claim 31
Dependent Claim
79 words
Copolymers of formula ##STR5## wherein A and B are independently selected from bifunctional linkages; Z is alkylenedioxy, arylenedioxy, or substituted derivatives thereof; R and R' are independently alkyl, aryl, substituted alkyl, substituted aryl, alkoxy, or halogen; x and y are mole fractions wherein x and y are greater than 0 and the sum of x and y is equal to 1.0; a and b are the numbers 0, 1 or 2; and n represents the number of repeating segments.
Claim 32
Dependent Claim
12 words
Copolymers of Formulas II, III, IV, V, VI, VII, VIII or IX.
Claim 33
Dependent Claim
12 words
Copolymers of Formulas II, III, IV, V, VI, VII, VIII or IX.
Claim 34
Dependent Claim
24 words
A copolymer in accordance with claim 28 wherein A is --O--, B is --COO--R"--OCO--, wherein R" is alkylene, arylene, ether, or a polyether segment.
Claim 35
Dependent Claim
18 words
A copolymer in accordance with claim 28 wherein R and R' are aliphatic aromatic substituents, or mixtures thereof.
Claim 36
Dependent Claim
11 words
A copolymer in accordance with claim 28 wherein A is alkyleneoxy.
Claim 37
Dependent Claim
27 words
A copolymer in accordance with claim 28 wherein A is --O--, B is --CONH--R"--NHCO--, and Z is alkylenedioxy or arylenedioxy, wherein R" is alkylene or an arylene.
Claim 38
Dependent Claim
20 words
A copolymer in accordance with claim 28 wherein x and y are mole fraction numbers of from 0.01 to 0.99.
Claim 39
Dependent Claim
20 words
A photoconductive imaging member in accordance with claim 1 wherein R and R' are independently aliphatic, aromatic, or mixtures thereof.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-09-24 | 1994-03-26 | 1994-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-09-24 | 1998-03-26 | 1998-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-09-24 | 2002-03-26 | 2002-09-25 | $7700.00 | Window Closed / Lapsed |