US4620942A
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Electrically conductive ladder polymers
Assignee: United States Department of the Navy
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Filing: 1983-05-31
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Granted: 1986-11-04
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Expires: 2003-05-31
Abstract
Abstract Benzimidazobenzophenanthroline type ladder polymers are doped with Lewis acids, protonic acids, potassium, or an alkali napthalide. The resulting doped polymers are useful semiconductors.
Inventors
- 👤 Oh-Kil Kim
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 20:49
CPC Classifications
C; C08; C08G; C08G73/00; C08G73/06; C08G73/0666; C08G73/0677; C08G73/0683; C08G73/0688; H; H01; H01B; H01B1/00; H01B1/06; H01B1/12; H01B1/124; H01B1/127; H01B1/128
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
53 words
A benzimidazobenzophenanthroline ladder polymer, said polymer having been doped with at least an effective amount of a dopant chosen from the group consisting of Lewis acids, protonic acids, potassium metal, and an alkali napthalide while said polymer was in film or fiber form, said effective amount of dopant rendering said polymer electrically conductive.
Claim 2
Dependent Claim
53 words
A benzimidazobenzophenanthroline ladder polymer, said polymer having been doped with at least an effective amount of a dopant chosen from the group consisting of Lewis acids, protonic acids, potassium metal, and an alkali napthalide while said polymer was in film or fiber form, said effective amount of dopant rendering said polymer electrically conductive.
Claim 3
Dependent Claim
35 words
The composition of claim 1 wherein said dopant is chosen from the group consisting of BF 3 , AsF 5 , SO 3 , H 2 SO 4 , potassium metal and an alkali napthalide.
Claim 4
Dependent Claim
28 words
The composition of claim 2 wherein said dopant is chosen from the group consisting of SO 3 , H 2 SO 4 , potassium metal and potassium napthalide.
Claim 5
Dependent Claim
46 words
The composition of claim 1 wherein said polymer is doped with at least two dopants, at least one of which is chosen from the group consisting of Lewis acids, protonic acids, potassium metal, and an alkali napthalide to yield a polymer having an appropriate doping level.
Claim 6
Dependent Claim
37 words
A benzomazobenzophenanthroline ladder polymer, said polymer having been doped with an effective amount of a dopant selected from the group consisting of H 2 SO 4 and SO 3 while said polymer was in the solid state.
Claim 7
Dependent Claim
37 words
A benzomazobenzophenanthroline ladder polymer, said polymer having been doped with an effective amount of a dopant selected from the group consisting of H 2 SO 4 and SO 3 while said polymer was in the solid state.
Claim 8
Dependent Claim
27 words
The composition of claim 5 wherein the molar ratio of said dopant with respect to the repeating unit in said polymer is from about 6:1 to 8:1.
Claim 9
Independent Claim
60 words
A method of making a conductive polymer comprising the step of doping a benzimidazobenzophenanthroline ladder polymer with at least an effective amount of a dopant chosen from the group consisting of Lewis acids, protonic acids, potassium metal and an alkali napthalide while said polymer is in film or fiber form, said effective amount of dopant rendering said polymer electrically conductive.
Claim 10
Independent Claim
60 words
A method of making a conductive polymer comprising the step of doping a benzimidazobenzophenanthroline ladder polymer with at least an effective amount of a dopant chosen from the group consisting of Lewis acids, protonic acids, potassium metal and an alkali napthalide while said polymer is in film or fiber form, said effective amount of dopant rendering said polymer electrically conductive.
Claim 11
Dependent Claim
38 words
The method of claim 7 wherein said doping step comprises selecting a dopant from the group consisting of BF 3 , AsF 5 , SO 3 , H 2 SO 4 , potassium metal and an alkali napthalide.
Claim 12
Dependent Claim
31 words
The method of claim 8 wherein said doping step comprises selecting a dopant from the group consisting of SO 3 , H 2 SO 4 , potassium metal and potassium napthalide.
Claim 13
Dependent Claim
26 words
The method of claim 9 wherein said doping step comprises selecting a dopant from the group consisting of H 2 SO 4 and SO 3 .
Claim 14
Dependent Claim
29 words
The method of claim 10 wherein said doping step comprises doping said polymer until the molar ratio of said dopant to said polymer is from about 6:1 to 8:1.
Claim 15
Dependent Claim
19 words
The composition of claim 6 wherein said polymer is selected from the group consisting of poly[(7-oxo-7,10H-benz[de]imidazo[4',5':5,6]benzimidazo[2,1-a]isoquinoline-3,4:10,11-tetrayl)-10-carbonyl], and poly(6,9-dihydro-6,9-dioxobisbenzimidazo[2,1-b:1',2'-j]-benzo[1 mn][3,8]phenanthroline-3,12-diyl).
Claim 16
Dependent Claim
22 words
The method of claim 11 further comprising the step of selecting said polymer from the group consisting of poly[(7-oxo-7,10H-benz[de]imidazo[4',5':5,6]benzimidazo[2,1-a]isoquinoline-3,4:10,11-tetrayl)-10-carbonyl], and poly(6,9-dihydro-6,9-dioxobisbenzimidazo[2,1-b:1',2'-j]-benzo[1 mn][3,8]phenanthroline-3,12-diyl).
Claim 17
Dependent Claim
51 words
A benzimidazobenzophenanthroline ladder polymer, said polymer having been doped with at least an effective amount of a dopant chosen from the group consisting of Lewis acids, protonic acids, potassium metal, and an alkali napthalide while said polymer was in film form, said effective amount of dopant rendering said polymer electrically conductive.
Claim 18
Dependent Claim
51 words
A benzimidazobenzophenanthroline ladder polymer, said polymer having been doped with at least an effective amount of a dopant chosen from the group consisting of Lewis acids, protonic acids, potassium metal, and an alkali napthalide while said polymer was in film form, said effective amount of dopant rendering said polymer electrically conductive.
Claim 19
Dependent Claim
35 words
The composition of claim 14 wherein said dopant is chosen from the group consisting of BF 3 , AsF 5 , SO 3 , H 2 SO 4 , potassium metal and an alkali napthalide.
Claim 20
Dependent Claim
28 words
The composition of claim 15 wherein said dopant is chosen from the group consisting of SO 3 , H 2 SO 4 , potassium metal and potassium napthalide.
Claim 21
Dependent Claim
46 words
The composition of claim 16 wherein said polymer is doped with at least two dopants, at least one of which is chosen from the group consisting of Lewis acids, protonic acids, potassium metal, and an alkali napthalide to yield a polymer having an appropriate doping level.
Claim 22
Dependent Claim
47 words
A benzimazobenzophenanthroline ladder polymer, said polymer having been doped with an effective amount of a dopant selected from the group consisting of H 2 SO 4 and SO 3 , while said polymer was in film form, said effective amount of dopant rendering said polymer electrically conductive.
Claim 23
Dependent Claim
47 words
A benzimazobenzophenanthroline ladder polymer, said polymer having been doped with an effective amount of a dopant selected from the group consisting of H 2 SO 4 and SO 3 , while said polymer was in film form, said effective amount of dopant rendering said polymer electrically conductive.
Claim 24
Dependent Claim
27 words
The composition of claim 18 wherein the molar ratio of said dopant with respect to the repeating unit in said polymer is from about 6:1 to 8:1.
Claim 25
Dependent Claim
21 words
The composition of claim 19 wherein said polymer is chosen from the group consisting of poly[(7-oxo-7,10H benz[de]imidazo[4',5':5,6] benzimidazo[2,1-a]isoquinoline-3,4:10,11-tetrayl)-10-carbonyl] and poly(6,9-dihydro-6,9-dioxobisbenzimidazo[2,1-b:1',2'-j]-benzo[1 mn][3,8]phenanthroline-3,12-diyl).
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1989-11-03 | 1990-05-05 | 1990-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-11-03 | 1994-05-05 | 1994-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-11-03 | 1998-05-05 | 1998-11-04 | $7700.00 | Window Closed / Lapsed |