US3607257A
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Photoconductive compositions and elements
Assignee: Eastman Kodak Co
•
Filing: 1968-08-27
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Granted: 1971-09-21
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Expires: 1988-08-27
Abstract
Abstract Photoconductive compositions and elements containing as photoconductors organometallic compounds derived from Group IIIa metals are described.
Inventors
- 👤 Arthur L Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:26
CPC Classifications
C; C07; C07F; C07F5/00; C07F5/02; C07F5/027; G; G03; G03G; G03G5/00; G03G5/02; G03G5/04; G03G5/06; G03G5/0662
Claims Analysis
Total Claims: 32
Claim 1
Independent Claim
18 words
The photoconductive composition as defined in claim 1 in which a sensitizer for said photoconductor is also present.
Claim 2
Dependent Claim
69 words
A photoconductive composition comprising a photoconductor which is a Group IIIa organometallic compound having attached to a Group IIIa metal atom (1) at least one amino-aryl group and (2) at least one substituent selected from the group consisting of a hydrogen atom, an alkyl group, an aryl group, a Group IIIa organometallic group, an alkoxy group, an aryloxy group and an amino group and a sensitizer for said photoconductor.
Claim 3
Dependent Claim
17 words
The photoconductive composition as defined in claim 3 wherein the Group IIIa organometallic compound is a borane.
Claim 4
Dependent Claim
17 words
The photoconductive composition as defined in claim 3 wherein the Group IIIa organometallic compound is a p-dialkylaminophenylborane.
Claim 5
Dependent Claim
16 words
The photoconductive composition as defined in claim 3 wherein the Group IIIa organometallic compound is p-diethyl-aminophenylborane.
Claim 6
Dependent Claim
15 words
The photoconductive composition as defined in claim 3 wherein the sensitizer is a pyrylium salt.
Claim 7
Dependent Claim
10 words
A photoconductive composition comprising a photoconductor represented by the formula:
Claim 8
Dependent Claim
12 words
The photoconductive composition as defined in claim 8 wherein M is boron.
Claim 9
Dependent Claim
16 words
The photoconductive composition as defined in claim 8 wherein R1 and R2 are each alkyl groups.
Claim 10
Dependent Claim
16 words
The photoconductive composition as defined in claim 8 wherein D and E are each p-dialkylaminophenyl groups.
Claim 11
Dependent Claim
14 words
The photoconductive composition as defined in claim 8 wherein Ar is a phenylene group.
Claim 12
Dependent Claim
15 words
The photoconductive composition as defined in claim 8 wherein the sensitizer is a pyrylium salt.
Claim 13
Dependent Claim
10 words
A photoconductive composition comprising a photoconductor represented by the formula:
Claim 14
Dependent Claim
12 words
The photoconductive composition as defined in claim 14 wherein M is boron.
Claim 15
Dependent Claim
17 words
The photoconductive composition as defined in claim 14 wherein D and E are each a p-dialkylaminophenyl group.
Claim 16
Dependent Claim
17 words
The photoconductive composition as defined in claim 14 wherein R1 and R2 are each an alkyl group.
Claim 17
Dependent Claim
15 words
The photoconductive composition as defined in claim 14 wherein the sensitizer is a pyrylium salt.
Claim 18
Dependent Claim
34 words
An electrophotographic element comprising a support having coated thereon a composition comprising a photoconductor which is a Group IIIa organometallic compound having at least one amino-aryl group attached to a Group IIIa metal atom.
Claim 19
Dependent Claim
71 words
An electRophotographic element comprising a support having coated thereon a composition comprising a photoconductor which is a Group IIIa organometallic compound having attached to a Group IIIa metal atom (1) at least one amino-aryl group and (2) at least one substituent selected from the group consisting of a hydrogen atom, an alkyl group, an aryl group, a Group IIIa organometallic group, an alkoxy group an aryloxy group and an amino group.
Claim 20
Dependent Claim
16 words
The electrophotographic element as defined in claim 20 wherein the Group IIIa organometallic compound is borane.
Claim 21
Dependent Claim
17 words
The electrophotographic element as defined in claim 20 wherein the Group IIIa organometallic compound is a p-dialkylaminophenylborane.
Claim 22
Dependent Claim
16 words
The electrophotographic element as defined in claim 20 wherein the Group IIIa organometallic compound is p-diethylaminophenylborane.
Claim 23
Dependent Claim
18 words
An electrophotographic element comprising a support having coated thereon a composition comprising a photoconductor represented by the formula:
Claim 24
Dependent Claim
12 words
The electrophotographic element as defined in claim 24 wherein M is boron.
Claim 25
Dependent Claim
17 words
The electrophotographic element as defined in claim 24 wherein R1 and R2 are each an alkyl group.
Claim 26
Dependent Claim
17 words
The electrophotographic element as defined in claim 24 wherein D and E are each a p-dialkylaminophenyl group.
Claim 27
Dependent Claim
14 words
The electrophotographic element as defined in claim 24 wherein Ar is a phenylene group.
Claim 28
Dependent Claim
18 words
An electrophotographic element comprising a support having coated thereon a composition comprising a photoconductor represented by the formula:
Claim 29
Dependent Claim
12 words
The electrophotographic element as defined in claim 29 wherein M is boron.
Claim 30
Dependent Claim
17 words
The electrophotographic element as defined in claim 30 wherein D and E are each a pdialkylaminophenyl group.
Claim 31
Dependent Claim
17 words
The electrophotographic element as defined in claim 30 wherein R1 and R2 are each an alkyl group.
Claim 32
Dependent Claim
43 words
An electrophotographic element comprising a support having coated thereon a photoconductive composition comprising 10 to about 60 weight percent of tri-p-diethylaminophenylborane as a photoconductor, 0.005 to about 5.0 weight percent of (4-(p-diethylaminophenyl)-2,6-diphenylthiapyrylium perchlorate) as a sensitizer and a polymeric binder for said photoconductor.
References Cited (Backward Citations)
US2800559A
Cited
US3016397A
Cited
US3114633A
Cited
US3163532A
Cited
US3193566A
Cited
US3141770A
Cited
US3409655A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-20 | 1975-03-22 | 1975-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-20 | 1979-03-22 | 1979-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-20 | 1983-03-22 | 1983-09-21 | $7700.00 | Window Closed / Lapsed |