Patent US4111693A successfully refreshed from Google Patents.
US4111693A
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Multilayer aggregate photoconductive elements
Assignee: Eastman Kodak Co
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Filing: 1976-12-22
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Granted: 1978-09-05
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Expires: 1996-12-22
Abstract
Abstract A multi-active photoconductive insulating element having at least two layers comprising an aggregate photoconductive layer in electrical contact with a photoconductor containing layer. The aggregate photoconductive layer comprises at least one compound having the structure: ##STR1## wherein A represents: ##STR2## in which R 1 , R 2 , R 3 , and R 4 , which may be the same or different, represent a substituted or unsubstituted alkyl group having from 1 to 18 carbon atoms or a substituted or unsubstituted aryl group; R 5 and R 6 , which may be the same or different, represent an electron withdrawing group, phenyl or substituted phenyl; R 7 and R 8 , which may be the same or different represent an electron withdrawing group or hydrogen except that when Ar is unsubstituted phenylene or unsubstituted anthrylene, R 7 and R 8 must be other than hydrogen; R 11 is an electron withdrawing group; Ar represents a substituted or unsubstituted arylene group, wherein said substituent is an electron accepting or an electron withdrawing group.
Inventors
- 👤 Hal Eldon Wright
- 👤 Martin Alfred Berwick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:23
CPC Classifications
G; G03; G03G; G03G5/00; G03G5/02; G03G5/04; G03G5/06; G03G5/0664; G03G5/0666; G03G5/0668; G03G5/0672
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
143 words
A photoconductive insulating element having at least two layers comprising an aggregate photoconductive layer in electrical contact with a photoconductor containing layer, wherein: (a) said photoconductor containing layer comprises an organic photoconductive material (b) said aggregate photoconductive layer comprises (i) a continuous, electrically insulating polymer phase and (ii) a discontinuous phase dispersed in said continuous electrically insulating polymer phase comprising a finely-divided, particulate cocrystalline complex of at least one polymer having an alkylidene diarylene group in a recurring unit and at least one pyrylium-type dye salt, and (iii) at least one compound having the structure: ##STR41## in which R 1 and R 2 , may be the same or different, represent a substituted or unsubstituted alkyl group having from 1 to 18 carbon atoms or a substituted or unsubstituted aryl group; and R 5 represents an electron withdrawing group, phenyl or substituted phenyl.
Claim 2
Dependent Claim
143 words
A photoconductive insulating element having at least two layers comprising an aggregate photoconductive layer in electrical contact with a photoconductor containing layer, wherein: (a) said photoconductor containing layer comprises an organic photoconductive material (b) said aggregate photoconductive layer comprises (i) a continuous, electrically insulating polymer phase and (ii) a discontinuous phase dispersed in said continuous electrically insulating polymer phase comprising a finely-divided, particulate cocrystalline complex of at least one polymer having an alkylidene diarylene group in a recurring unit and at least one pyrylium-type dye salt, and (iii) at least one compound having the structure: ##STR41## in which R 1 and R 2 , may be the same or different, represent a substituted or unsubstituted alkyl group having from 1 to 18 carbon atoms or a substituted or unsubstituted aryl group; and R 5 represents an electron withdrawing group, phenyl or substituted phenyl.
Claim 3
Dependent Claim
150 words
A photoconductive insulating element having at least two layers comprising an aggregate photoconductive layer in electrical content with a photoconductor containing layer, wherein: (a) said photoconductor containing layer comprises an organic photoconductive material (b) said aggregate photoconductive layer comprises (i) a continuous, electrically insulating polymer phase and (ii) a discontinuous phase dispersed in said continuous electrically insulating polymer phase comprising a finely-divided, particulate cocrystalline complex of at least one polymer having an alkylidene diarylene group in a recurring unit and at least one pyrylium-type dye salt, and (iii) at least one compound having the structure: ##STR42## in which R 1 and R 2 , may be the same or different, represent a substituted or unsubstituted alkyl group having from 1 to 18 carbon atoms or a substituted or unsubstituted aryl group; R 6 represents an electron withdrawing group, phenyl or substituted phenyl; and R 11 is an electron withdrawing group.
Claim 4
Dependent Claim
150 words
A photoconductive insulating element having at least two layers comprising an aggregate photoconductive layer in electrical content with a photoconductor containing layer, wherein: (a) said photoconductor containing layer comprises an organic photoconductive material (b) said aggregate photoconductive layer comprises (i) a continuous, electrically insulating polymer phase and (ii) a discontinuous phase dispersed in said continuous electrically insulating polymer phase comprising a finely-divided, particulate cocrystalline complex of at least one polymer having an alkylidene diarylene group in a recurring unit and at least one pyrylium-type dye salt, and (iii) at least one compound having the structure: ##STR42## in which R 1 and R 2 , may be the same or different, represent a substituted or unsubstituted alkyl group having from 1 to 18 carbon atoms or a substituted or unsubstituted aryl group; R 6 represents an electron withdrawing group, phenyl or substituted phenyl; and R 11 is an electron withdrawing group.
Claim 5
Dependent Claim
137 words
A photoconductive insulating element having at least two layers comprising an aggregate photoconductive layer in electrical contact with a photoconductor containing layer, wherein: (a) said photoconductor containing layer comprises an organic photoconductive material (b) said aggregate photoconductive layer comprises (i) a continuous, electrically insulating polymer phase and (ii) a discontinuous phase dispersed in said continuous electrically insulating polymer phase comprising a finely-divided, particulate cocrystalline complex of at least one polymer having an alkylidene diarylene group in a recurring unit and at least one pyrylium-type dye salt, and (iii) at least one compound having the structure: ##STR43## in which R 1 , R 2 , R 3 and R 4 , may be the same or different, represent a substituted or unsubstituted alkyl group having from 1 to 18 carbon atoms or a substituted or unsubstituted aryl group.
Claim 6
Dependent Claim
137 words
A photoconductive insulating element having at least two layers comprising an aggregate photoconductive layer in electrical contact with a photoconductor containing layer, wherein: (a) said photoconductor containing layer comprises an organic photoconductive material (b) said aggregate photoconductive layer comprises (i) a continuous, electrically insulating polymer phase and (ii) a discontinuous phase dispersed in said continuous electrically insulating polymer phase comprising a finely-divided, particulate cocrystalline complex of at least one polymer having an alkylidene diarylene group in a recurring unit and at least one pyrylium-type dye salt, and (iii) at least one compound having the structure: ##STR43## in which R 1 , R 2 , R 3 and R 4 , may be the same or different, represent a substituted or unsubstituted alkyl group having from 1 to 18 carbon atoms or a substituted or unsubstituted aryl group.
Claim 7
Dependent Claim
185 words
A photoconductive insulating element having at least two layers comprising an aggregate photoconductive layer in electrical contact with a photoconductor containing layer, wherein: (a) said photoconductor containing layer comprises an organic photoconductive material (b) said aggregate photodoncudtive layer comprises (i) a continuous, electrically insulating polymer phase and (ii) a discontinuous phase dispersed in said continuous electrically insulating polymer phase comprising a finely-divided, particulate cocrystalline complex of at least one polymer having an alkylidene diarylene group in a recurring unit and at least one pyrylium-type dye salt, and (iii) at least one compound having the structure: ##STR44## in which R 1 and R 2 , may be the same or different represent a substituted or unsubstituted alkyl group having from 1 to 18 carbon atoms, substituted or unsubstituted phenyl, napthyl or anthryl; and R 5 represents hydrogen, --CO 2 R 9 , --OR 9 , --CF 3 , --NO 2 , --SO 2 F, --CN, or a substituted phenyl wherein said substituent is selected from the group consisting of hydrogen, --CF 3 , --CO 2 R 9 , --NO 2 , --SO 2 F, and --CN.
Claim 8
Dependent Claim
185 words
A photoconductive insulating element having at least two layers comprising an aggregate photoconductive layer in electrical contact with a photoconductor containing layer, wherein: (a) said photoconductor containing layer comprises an organic photoconductive material (b) said aggregate photodoncudtive layer comprises (i) a continuous, electrically insulating polymer phase and (ii) a discontinuous phase dispersed in said continuous electrically insulating polymer phase comprising a finely-divided, particulate cocrystalline complex of at least one polymer having an alkylidene diarylene group in a recurring unit and at least one pyrylium-type dye salt, and (iii) at least one compound having the structure: ##STR44## in which R 1 and R 2 , may be the same or different represent a substituted or unsubstituted alkyl group having from 1 to 18 carbon atoms, substituted or unsubstituted phenyl, napthyl or anthryl; and R 5 represents hydrogen, --CO 2 R 9 , --OR 9 , --CF 3 , --NO 2 , --SO 2 F, --CN, or a substituted phenyl wherein said substituent is selected from the group consisting of hydrogen, --CF 3 , --CO 2 R 9 , --NO 2 , --SO 2 F, and --CN.
Claim 9
Dependent Claim
214 words
A photoconductive insulating element having at least two layers comprising an aggregate photoconductive layer in electrical contact with a photoconductor containing layer, wherein: (a) said photoconductor containing layer comprises an organic photoconductive material (b) said aggregate photoconductive layer comprises (i) a continuous, electrically insulating polymer phase and (ii) a discontinuous phase dispersed in said continuous electrically insulating polymer phase comprising a finely-divided, particulate cocrystalline complex of at least one polymer having an alkylidene diarylene group in a recurring unit and at least one pyrylium-type dye salt, and (iii) at least one compound having the structure: ##STR45## in which R 1 and R 2 , may be the same or different represent a substituted or unsubstituted alkyl group having from 1 to 18 carbon atoms, substituted or unsubstituted phenyl, naphthyl or anthryl; R 6 represents hydrogen, --CO 2 R 9 , --OR 9 , --CF 3 , --NO 2 , --SO 2 F, --CN, or a substituted phenyl wherein said substituent is selected from the group consisting of hydrogen, --CF 3 , --CO 2 R 9 , --NO 2 , --SO 2 F, and --CN; and R 11 is selected from the group consisting of --CN, --CO 2 R 9 , --OR 9 , --CF 3 , --NO 2 , --SR 9 , and hydrogen.
Claim 10
Dependent Claim
214 words
A photoconductive insulating element having at least two layers comprising an aggregate photoconductive layer in electrical contact with a photoconductor containing layer, wherein: (a) said photoconductor containing layer comprises an organic photoconductive material (b) said aggregate photoconductive layer comprises (i) a continuous, electrically insulating polymer phase and (ii) a discontinuous phase dispersed in said continuous electrically insulating polymer phase comprising a finely-divided, particulate cocrystalline complex of at least one polymer having an alkylidene diarylene group in a recurring unit and at least one pyrylium-type dye salt, and (iii) at least one compound having the structure: ##STR45## in which R 1 and R 2 , may be the same or different represent a substituted or unsubstituted alkyl group having from 1 to 18 carbon atoms, substituted or unsubstituted phenyl, naphthyl or anthryl; R 6 represents hydrogen, --CO 2 R 9 , --OR 9 , --CF 3 , --NO 2 , --SO 2 F, --CN, or a substituted phenyl wherein said substituent is selected from the group consisting of hydrogen, --CF 3 , --CO 2 R 9 , --NO 2 , --SO 2 F, and --CN; and R 11 is selected from the group consisting of --CN, --CO 2 R 9 , --OR 9 , --CF 3 , --NO 2 , --SR 9 , and hydrogen.
Claim 11
Dependent Claim
138 words
A photoconductive insulating element having a least two layers comprising an aggregate photoconductive layer in electrical contact with a photoconductor containing layer, wherein: (a) said photoconductor containing layer comprises an organic photoconductive material (b) said aggregate photoconductive layer comprises (i) a continuous, electrically insulating polymer phase and (ii) a discontinuous phase dispersed in said continuous electrically insulating polymer phase comprising a finely-divided, particulate cocrystalline complex of at least one polymer having an alkylidene diarylene group in a recurring unit and at least one pyrylium-type dye salt, and (iii) at least one compound having the structure: ##STR46## in which R 1 , R 2 , R 3 , and R 4 , may be the same or different represent a substituted or unsubstituted alkyl group having from 1 to 18 carbon atoms, substituted or unsubstituted phenyl, napthyl or anthryl.
Claim 12
Dependent Claim
138 words
A photoconductive insulating element having a least two layers comprising an aggregate photoconductive layer in electrical contact with a photoconductor containing layer, wherein: (a) said photoconductor containing layer comprises an organic photoconductive material (b) said aggregate photoconductive layer comprises (i) a continuous, electrically insulating polymer phase and (ii) a discontinuous phase dispersed in said continuous electrically insulating polymer phase comprising a finely-divided, particulate cocrystalline complex of at least one polymer having an alkylidene diarylene group in a recurring unit and at least one pyrylium-type dye salt, and (iii) at least one compound having the structure: ##STR46## in which R 1 , R 2 , R 3 , and R 4 , may be the same or different represent a substituted or unsubstituted alkyl group having from 1 to 18 carbon atoms, substituted or unsubstituted phenyl, napthyl or anthryl.
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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) | 1981-09-04 | 1982-03-06 | 1982-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-09-04 | 1986-03-06 | 1986-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-09-04 | 1990-03-06 | 1990-09-05 | $7700.00 | Window Closed / Lapsed |