US3966468A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Organic photoconductors with triamino benzene additives
Assignee: Eastman Kodak Co
•
Filing: 1975-04-25
•
Granted: 1976-06-29
•
Expires: 1995-04-25
Abstract
Abstract In organic, photoconductive insulating compositions including one or more organic photoconductors, the image contrast characteristics obtained when using such compositions can be modified or modifiable when the composition includes a triaminobenzene compound, such as one having the formula ##SPC1## Wherein each of Z, Z 1 and Z 2 , taken together with the nitrogen to which each is attached, represents the non-metallic atoms necessary to complete a heterocyclic group having from 5 to 10 atoms in the cyclic nucleus.
Inventors
- 👤 Lawrence E. Contois
- 👤 Norman G. Rule
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:02
CPC Classifications
G; G03; G03G; G03G5/00; G03G5/02; G03G5/04; G03G5/06; G03G5/0622; G03G5/0644; G03G5/0661; G03G5/07
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
62 words
An organic photoconductive insulating compositon comprising at least one organic photoconductor and, as a contrast-modifying agent, a compound having the formula: ##SPC6## wherein each of Z, Z 1 and Z 2 , taken together with the nitrogen to which each is attached, represents the non-metallic atoms necessary to complete an N-deterocyclic group having from 5 to 10 atoms in the cyclic nucleus.
Claim 2
Dependent Claim
62 words
An organic photoconductive insulating compositon comprising at least one organic photoconductor and, as a contrast-modifying agent, a compound having the formula: ##SPC6## wherein each of Z, Z 1 and Z 2 , taken together with the nitrogen to which each is attached, represents the non-metallic atoms necessary to complete an N-deterocyclic group having from 5 to 10 atoms in the cyclic nucleus.
Claim 3
Dependent Claim
40 words
A photoconductive composition as defined in claim 1, wherein the heterocyclic group completed by atoms represented by each of Z, Z 1 and Z 2 taken together with the nitrogen atom to which each is attached, has a piperidine nucleus.
Claim 4
Dependent Claim
16 words
A photoconductive composition as defined in claim 1 and further comprising an electrically insulating polymeric binder.
Claim 5
Dependent Claim
16 words
A photoconductive composition as defined in claim 1 and further comprising a sensitizer for the photoconductor.
Claim 6
Dependent Claim
53 words
A photoconductive composition as described in claim 1, wherein the photoconductive compositions comprises an aggregate insulating composition comprising a particulate, co-crystalline complex of (1) a dye salt selected from the group consisting of pyrylium, thiapyrylium and selenapyrylium dye salts and (2) a polymer having an alkylidene diarylene moiety in a recurring unit thereof.
Claim 7
Dependent Claim
43 words
A photoconductive composition as described in claim 1 wherein the compound of the formula is present in the composition in an amount of from about 5% by weight to about 50% by weight, based on the total weight of photoconductor in the composition.
Claim 8
Dependent Claim
15 words
An organic photoconductive insulating composition comprising at least one organic photoconductor and a 1,3,5-tripiperidinobenzene compound.
Claim 9
Dependent Claim
15 words
An organic photoconductive insulating composition comprising at least one organic photoconductor and a 1,3,5-tripiperidinobenzene compound.
Claim 10
Dependent Claim
16 words
A photoconductive composition as defined in claim 7 wherein said benzene compound is 1,3,5-tripiperidinobenzene or 1,3,5-tris(4-methylpiperidino)benzene.
Claim 11
Dependent Claim
62 words
An organic photoconductive insulating composition comprising (a) an aggregate, photoconductive insulating composition comprising a continuous, electrically insulating binder phase having dispersed therein a particulate, co-crystalline complex of (1) a dye salt selected from the group consisting of pyrylium, thiapyrylium and selenapyrylium dye salts and (2) a polymer having an alkylidene diarylene moiety in a recurring unit thereof and (b) a 1,3,5-tripiperidinobenzene compound.
Claim 12
Dependent Claim
62 words
An organic photoconductive insulating composition comprising (a) an aggregate, photoconductive insulating composition comprising a continuous, electrically insulating binder phase having dispersed therein a particulate, co-crystalline complex of (1) a dye salt selected from the group consisting of pyrylium, thiapyrylium and selenapyrylium dye salts and (2) a polymer having an alkylidene diarylene moiety in a recurring unit thereof and (b) a 1,3,5-tripiperidinobenzene compound.
Claim 13
Dependent Claim
18 words
A photoconductive composition as defined in claim 9 wherein said dye salt is a 2,4,6-substituted thiapyrylium dye salt.
Claim 14
Dependent Claim
17 words
A photoconductive composition as defined in claim 9 wherein said benzene compound is 1,3,5-tripiperidinobenzene or 1,3,5-tris(4-methyl piperidino)benzene.
Claim 15
Dependent Claim
20 words
A photoconductive composition as defined in claim 9 wherein the polymer component of said co-crystalline complex is a carbonate polymer.
Claim 16
Dependent Claim
76 words
An organic photoconductive insulating composition comprising (a) at least one organic photoconductor selected from the group consisting of polyarylalkane photoconductors, arylamine photoconductors and aggregate photoconductive compositions comprising a particulate, co-crystalline complex of (1) a dye salt selected from the group consisting of pyrylium, thiapyrylium and selenapayrylium dye salts and (2) a polymer having an alkylidene diarylene moiety in a recurring unit thereof and (b) a compound selected from the group consisting of 1,3,5-tripiperidinobenzene and 1,3,5-tris(4-methylpiperidino) benzene.
Claim 17
Dependent Claim
76 words
An organic photoconductive insulating composition comprising (a) at least one organic photoconductor selected from the group consisting of polyarylalkane photoconductors, arylamine photoconductors and aggregate photoconductive compositions comprising a particulate, co-crystalline complex of (1) a dye salt selected from the group consisting of pyrylium, thiapyrylium and selenapayrylium dye salts and (2) a polymer having an alkylidene diarylene moiety in a recurring unit thereof and (b) a compound selected from the group consisting of 1,3,5-tripiperidinobenzene and 1,3,5-tris(4-methylpiperidino) benzene.
Claim 18
Dependent Claim
33 words
In an organic electrophotographic element comprising an electrically conductive support bearing an organic, photoconductive insulating layer, the improvement wherein said organic photoconductive insulating layer comprises a photoconductive composition as defined in claim 1.
Claim 19
Dependent Claim
33 words
In an organic electrophotographic element comprising an electrically conductive support bearing an organic, photoconductive insulating layer, the improvement wherein said organic photoconductive insulating layer comprises a photoconductive composition as defined in claim 9.
Claim 20
Dependent Claim
89 words
In an electrophotographic process wherein an electrostatic charge pattern is formed on an electrophotographic element comprising an electrically conducting support bearing a layer comprising an organic photoconductive insulating composition, the improvement comprising having, as said photoconductive composition, at least one organic photoconductor and a compound having the formula ##SPC7## wherein each of Z, Z 1 and Z 2 , taken together with the nitrogen to which each is attached, represents the non-metallic atoms necessary to complete an N-heterocyclic group having from 5 to 10 atoms in the cyclic nucleus.
Claim 21
Dependent Claim
89 words
In an electrophotographic process wherein an electrostatic charge pattern is formed on an electrophotographic element comprising an electrically conducting support bearing a layer comprising an organic photoconductive insulating composition, the improvement comprising having, as said photoconductive composition, at least one organic photoconductor and a compound having the formula ##SPC7## wherein each of Z, Z 1 and Z 2 , taken together with the nitrogen to which each is attached, represents the non-metallic atoms necessary to complete an N-heterocyclic group having from 5 to 10 atoms in the cyclic nucleus.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-06-29 | 1979-12-29 | 1980-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-06-29 | 1983-12-29 | 1984-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-06-29 | 1987-12-29 | 1988-06-29 | $7700.00 | Window Closed / Lapsed |