Patent US4929392A successfully refreshed from Google Patents.
US4929392A
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Inclusion complexes providing second harmonic generation
Assignee: 3M Co
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Filing: 1985-09-11
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Granted: 1990-05-29
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Expires: 2005-09-11
Abstract
Abstract Inclusion complexes, comprising a host and a guest, that exhibit greater second harmonic generation efficiency than either the host or the guest exhibits by itself. Preferred hosts can be selected from cyclodextrins, cyclodextrin derivatives, and cyclodextrin polymers. Preferred guests can be selected from aromatic compounds in which the molecule contains both an electron-donating functional group and an electron-withdrawing functional group.
Inventors
- 👤 John E. Trend
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:42
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/35; G02F1/355; G02F1/361
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
100 words
A non-centrosy m metric inclusion complex comprising: a non-centrosy m metric host material wherein said host material is selected from the group consisting of amyloses and cyclodextrins, and a guest material wherein said guest material is selected from the group consisting of 5-nitroindoline and 4-(N,N-dimethylamino)-benzylidene-2-hydroxyaniline wherein said guest material is entrapped within the molecular structure of said host material or entrapped between two or more adjacent molecules of said host material, said complex having a non-zero second order molecular hyperpolarizability, said complex further exhibiting greater second harmonic generation efficiency than either said host material or said guest material exhibits alone.
Claim 2
Dependent Claim
100 words
A non-centrosy m metric inclusion complex comprising: a non-centrosy m metric host material wherein said host material is selected from the group consisting of amyloses and cyclodextrins, and a guest material wherein said guest material is selected from the group consisting of 5-nitroindoline and 4-(N,N-dimethylamino)-benzylidene-2-hydroxyaniline wherein said guest material is entrapped within the molecular structure of said host material or entrapped between two or more adjacent molecules of said host material, said complex having a non-zero second order molecular hyperpolarizability, said complex further exhibiting greater second harmonic generation efficiency than either said host material or said guest material exhibits alone.
Claim 3
Dependent Claim
19 words
The inclusion complex of claim 1 wherein said host material is a cyclodextrin and said guest material is 5-nitroindoline.
Claim 4
Dependent Claim
19 words
The inclusion complex of claim 1 wherein said host material is a cyclodextrin and said guest material is 4-(N,N-dimethylamino)-benzylidene-2-hydroxyaniline.
Claim 5
Dependent Claim
19 words
The inclusion complex of claim 1 wherein said host material is an amylose and said guest material is 5-nitroindoline.
Claim 6
Dependent Claim
19 words
The inclusion complex of claim 1 wherein said host material is an amylose and said guest material is 4-(N,N-dimethylamino)-benzylidiene-2-hydroxyaniline.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-05-28 | 1993-11-27 | 1994-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-05-28 | 1997-11-27 | 1998-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-05-28 | 2001-11-27 | 2002-05-29 | $7700.00 | Window Closed / Lapsed |