US4500459A
Expired / Lapsed
US
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Tetracyanoanthraquinodimethane compounds
Assignee: Panasonic Holdings Corp
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Filing: 1982-03-12
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Granted: 1985-02-19
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Expires: 2002-03-12
Abstract
Abstract A 11,11,12,12,-tetracyano-9,10-antraquinondimethane compound of the general formula <IMAGE> wherein Z2, Z3, Z6 and Z7 each is H, halogen, alkyl, phenyl, alkylphenyl, hydroxyalkyl, carboxyalkyl, hydroxy, amino or carboxy and Z1, Z4, Z5 and Z8 each is H, Cl, hydroxy or amino; said halogen being F, Cl, Br or I and said alkyl, alkylphenyl, hydroxyalkyl and carboxyalkyl each containing up to 8 carbon atoms. The compounds within the scope of the above general formula are of value as organic conductors or organic semiconductors and can be used broadly as electronic materials.
Inventors
- 👤 Shu Hotta
- 👤 Tomiharu Hosaka
- 👤 Wataru Shimotsuma
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:22
CPC Classifications
H; H01; H01B; H01B1/00; H01B1/06; H01B1/12; H01B1/121; C; C07; C07C; C07C255/00; C08; C08G; C08G61/00; C08G61/02; C08G61/10; C08G65/00; C08G65/34; C08K; C08K5/00; C08K5/16; C08K5/29; C09; C09B; C09B1/00; H10; H10K; H10K85/00; H10K85/60; H10K85/611; Y; Y02; Y02E; Y02E10/00; Y02E10/50; Y02E10/549
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
A 11,11,12,12-tetracyano-9,10-anthraquinodimethane compound of the general formula ##STR9## wherein Z 2 , Z 3 , Z 6 and Z 7 each is H, halogen, alkyl, phenyl, alkylphenyl, hydroxyalkyl, carboxyalkyl, hydroxy, amino or carboxy and Z 1 , Z 4 , Z 5 and Z 8 is H, Cl, hydroxy or amino; said halogen being F, Cl, Br or I and said alkyl, alkylphenyl, hydroxyalkyl and carboxyalkyl each containing up to 8 carbon atoms with the proviso that at least one of Z 1 to Z 8 must be halogen, hydroxy or amino.
Claim 2
Dependent Claim
92 words
A 11,11,12,12-tetracyano-9,10-anthraquinodimethane compound of the general formula ##STR9## wherein Z 2 , Z 3 , Z 6 and Z 7 each is H, halogen, alkyl, phenyl, alkylphenyl, hydroxyalkyl, carboxyalkyl, hydroxy, amino or carboxy and Z 1 , Z 4 , Z 5 and Z 8 is H, Cl, hydroxy or amino; said halogen being F, Cl, Br or I and said alkyl, alkylphenyl, hydroxyalkyl and carboxyalkyl each containing up to 8 carbon atoms with the proviso that at least one of Z 1 to Z 8 must be halogen, hydroxy or amino.
References Cited (Backward Citations)
US3115506A
Cited
US3687987A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-02-19 | 1988-08-20 | 1989-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-02-19 | 1992-08-20 | 1993-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-02-19 | 1996-08-20 | 1997-02-19 | $7700.00 | Window Closed / Lapsed |