US4640800A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Quinodimethane compositions
Assignee: Celanese Corp
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Filing: 1985-06-25
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Granted: 1987-02-03
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Expires: 2005-06-25
Abstract
Abstract This invention provides a novel class of quinodimethane compounds which can exhibit nonlinear optical response. In one embodiment this invention can provide a high performance nonlinear optical substrate which comprises a transparent organic polymer film containing an array of charge asymmetric molecules such as 13,13-diamino-14,14-dicyanodiphenoquinodimethane: ##STR1##
Inventors
- 👤 Eui W. Choe
- 👤 Alan Buckley
- 👤 Anthon F. Garito
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:58
CPC Classifications
C; C07; C07C; C07C255/00; C08; C08K; C08K5/00; C08K5/16; C08K5/315; G; G02; G02F; G02F1/00; G02F1/35; G02F1/355; G02F1/361; G02F1/3611; C07C2603/00; C07C2603/02; C07C2603/40; C07C2603/42; C07C2603/50
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
25 words
A diphenoquinodimethane composition corresponding to the structure: ##STR14## where R is a substituent selected from hydrogen and alkyl group containing between about 1-20 carbon atoms.
Claim 2
Dependent Claim
25 words
A diphenoquinodimethane composition corresponding to the structure: ##STR14## where R is a substituent selected from hydrogen and alkyl group containing between about 1-20 carbon atoms.
Claim 3
Dependent Claim
25 words
A diphenoquinodimethane composition corresponding to the structure: ##STR15## where R is a substituent selected from hydrogen and alkyi groups containing between about 1-20 carbon atoms.
Claim 4
Dependent Claim
25 words
A diphenoquinodimethane composition corresponding to the structure: ##STR15## where R is a substituent selected from hydrogen and alkyi groups containing between about 1-20 carbon atoms.
Claim 5
Dependent Claim
1 words
13,13-Diamino-14,14-dicyanodiphenoquinodimethane.
Claim 6
Dependent Claim
1 words
13,13-Diamino-14,14-dicyanodiphenoquinodimethane.
Claim 7
Dependent Claim
1 words
13,13-Di(dimethylamino)-14,14-dicyanodiphenoquinodimethane.
Claim 8
Dependent Claim
1 words
13,13-Di(dimethylamino)-14,14-dicyanodiphenoquinodimethane.
Claim 9
Dependent Claim
1 words
13,13-Di(diethylamino)-14,14-dicyanodiphenoquinodimethane.
Claim 10
Dependent Claim
1 words
13,13-Di(diethylamino)-14,14-dicyanodiphenoquinodimethane.
Claim 11
Dependent Claim
1 words
13,13-Di(n-hexydecylamino)-14,14-dicyanodiphenoquinodimethane.
Claim 12
Dependent Claim
1 words
13,13-Di(n-hexydecylamino)-14,14-dicyanodiphenoquinodimethane.
Claim 13
Dependent Claim
1 words
13,13-Diamino-14,14-dicyano-4,5,9,10-tetrahydropyrenoquinodimethane.
Claim 14
Dependent Claim
1 words
13,13-Diamino-14,14-dicyano-4,5,9,10-tetrahydropyrenoquinodimethane.
Claim 15
Dependent Claim
1 words
13,13-Di(dimethylamino)-14,14-dicyano-4,5,9,10-tetrahydropyrenoquinodimethane.
Claim 16
Dependent Claim
1 words
13,13-Di(dimethylamino)-14,14-dicyano-4,5,9,10-tetrahydropyrenoquinodimethane.
Claim 17
Dependent Claim
1 words
13,13-Di(diethylamino)-14,14-dicyano-4,5,9,10-tetrahydropyrenoquinodimethane.
Claim 18
Dependent Claim
1 words
13,13-Di(diethylamino)-14,14-dicyano-4,5,9,10-tetrahydropyrenoquinodimethane.
Claim 19
Dependent Claim
1 words
13,13-Di(n-hexadecylamino)-14,14-dicyano-4,5,9,10-tetrahydropyrenoquinodimethane.
Claim 20
Dependent Claim
1 words
13,13-Di(n-hexadecylamino)-14,14-dicyano-4,5,9,10-tetrahydropyrenoquinodimethane.
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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) | 1990-02-02 | 1990-08-04 | 1991-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-02-02 | 1994-08-04 | 1995-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-02-02 | 1998-08-04 | 1999-02-03 | $7700.00 | Window Closed / Lapsed |