US4973429A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Organic materials with non-linear optical properties
Assignee: Novartis Corp
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Filing: 1989-02-15
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Granted: 1990-11-27
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Expires: 2009-02-15
Abstract
Abstract A material in the form of a film is described which contains, in an orientated arrangement which does not display point symmetry, compounds of formula I ##STR1## wherein X is ═CH-- or ═N--, R 1 is C 12 -C 30 -alkyl, R 2 is hydrogen or C 1 -C 30 -alkyl, R 3 is --NO 2 , --CN, --CF 3 , --COCF 3 , --SO 2 CH 3 or --SO 2 CF 3 , R 4 is hydrogen or is defined in the same way as R 3 , R 5 is hydrogen or --NR 6 R 7 and R 6 and R 7 independently of one another are hydrogen or C 1 -C 30 -alkyl, it also being possible for any of the alkyl radicals to be partially fluorinated or perfluorinated. The compounds of formula I can be arranged in Langmuir-Blodgett layer systems. Such systems can be used for example for the manufacture of opto-electronic units.
Inventors
- 👤 Gero Decher
- 👤 Bernd Tieke
- 👤 Christian Bosshard
- 👤 Peter Gunter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 17:03
CPC Classifications
C; C08; C08F; C08F14/00; C08F14/18; C07; C07D; C07D213/00; C07D213/02; C07D213/04; C07D213/60; C07D213/72; C07D213/74; B; B82; B82Y; B82Y20/00; C07C; C07C211/00; C07C211/43; C07C211/44; C07C211/52; C07C225/00; C07C225/22; G; G02; G02F; G02F1/00; G02F1/35; G02F1/355; G02F1/361; G02F1/3618
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
124 words
A material in the form of a film comprising, in an oriented arrangement which does not display point symmetry, a compound of formula I ##STR7## wherein X is ═N--, R 1 is C 12 -C 30 -alkyl, R 2 is hydrogen or C 1 -C 30 -alkyl, R 3 is --NO 2 , --CN, --CF 3 , --COOF 3 , --SO 2 CH 3 or SO 2 CF 3 , R 4 is hydrogen or is defined in the same way as R 3 , R 5 is hydrogen or --NR 6 R 7 and R 6 and R 7 independently of one another are hydrogen or C 1 -C 30 -alkyl, wherein any of the alkyl radicals are optionally partially fluorinated or perfluorinated.
Claim 2
Dependent Claim
124 words
A material in the form of a film comprising, in an oriented arrangement which does not display point symmetry, a compound of formula I ##STR7## wherein X is ═N--, R 1 is C 12 -C 30 -alkyl, R 2 is hydrogen or C 1 -C 30 -alkyl, R 3 is --NO 2 , --CN, --CF 3 , --COOF 3 , --SO 2 CH 3 or SO 2 CF 3 , R 4 is hydrogen or is defined in the same way as R 3 , R 5 is hydrogen or --NR 6 R 7 and R 6 and R 7 independently of one another are hydrogen or C 1 -C 30 -alkyl, wherein any of the alkyl radicals are optionally partially fluorinated or perfluorinated.
Claim 3
Dependent Claim
22 words
A material according to claim 1 wherein the compounds of formula I are arranged in the form of a Langmuir-Blodgett layer system.
Claim 4
Dependent Claim
52 words
A Languir-Blodgett layer system according to claim 2 containing alternating or non-alternating layers of compounds of formula I wherein X is ═N--, R 1 is C 16 -C 26 -alkyl, R 2 is hydrogen, R 3 is --NO 2 , R 4 is hydrogen or --NO 2 and R 5 is hydrogen.
Claim 5
Dependent Claim
105 words
A compound of formula I ##STR8## wherein X is ═N--, R 1 is C 12 -C 30 -alkyl, R 2 is hydrogen or C 1 -C 30 -alkyl, R 3 is --NO 2 , --CN, --CF 3 , --COCF 3 , --SO 2 CH 3 or SO 2 CF 3 , R 4 is hydrogen or is defined in the same way as R 3 , R 5 is hydrogen or --NR 6 R 7 and R 6 and R 7 independently of one another are hydrogen or C 1 -C 30 -alkyl, wherein any of the alkyl radicals are optionally partially fluorinated or perfluorinated.
Claim 6
Dependent Claim
105 words
A compound of formula I ##STR8## wherein X is ═N--, R 1 is C 12 -C 30 -alkyl, R 2 is hydrogen or C 1 -C 30 -alkyl, R 3 is --NO 2 , --CN, --CF 3 , --COCF 3 , --SO 2 CH 3 or SO 2 CF 3 , R 4 is hydrogen or is defined in the same way as R 3 , R 5 is hydrogen or --NR 6 R 7 and R 6 and R 7 independently of one another are hydrogen or C 1 -C 30 -alkyl, wherein any of the alkyl radicals are optionally partially fluorinated or perfluorinated.
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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) | 1993-11-26 | 1994-05-28 | 1994-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-11-26 | 1998-05-28 | 1998-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-11-26 | 2002-05-28 | 2002-11-27 | $7700.00 | Window Closed / Lapsed |