US4711532A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Novel diacetylenic and polydiacetylenic compositions
Assignee: CNA Holdings LLC
•
Filing: 1986-12-17
•
Granted: 1987-12-08
•
Expires: 2006-12-17
Abstract
Abstract This invention provides a novel class of diacetylenic monomers and corresponding polydiacetylenic polymers. Illustrative of the invention is a polymer characterized by the repeating unit: ##STR1## In the form of an optically transparent medium with a noncentrosymmetric alignment of molecules, the polymer exhibits exceptional second order nonlinear optical susceptibility effects.
Inventors
- 👤 Eui W. Choe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:05
CPC Classifications
C; C07; C07C; C07C255/00; C08; C08F; C08F38/00; G; G02; G02F; G02F1/00; G02F1/35; G02F1/355; G02F1/361; G02F1/3615; G02F1/3617; G03; G03C; G03C1/00; G03C1/72; G03C1/73; G03C1/733
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
46 words
An electrooptic light modulator device with a polymeric nonlinear optical component comprising an optically transparent medium of a polymer characterized by the recurring monomeric unit: ##STR18## where X is an electron-donating substituent; Y is an electron-withdrawing substituent; and n is an integer of at least 3.
Claim 2
Dependent Claim
46 words
An electrooptic light modulator device with a polymeric nonlinear optical component comprising an optically transparent medium of a polymer characterized by the recurring monomeric unit: ##STR18## where X is an electron-donating substituent; Y is an electron-withdrawing substituent; and n is an integer of at least 3.
Claim 3
Dependent Claim
83 words
An electrooptic light modulator device with a polymeric nonlinear optical component comprising an optically transparent medium of a polymer characterized by the recurring monomeric unit: ##STR19## where R and R 1 are alkyl groups containing between about 1-4 carbon atoms, and R and R 1 taken together with the connecting nitrogen atom form an alicyclic substituent; Y' is a substituent selected from nitro, cyano and trifluoromethyl radicals; and the weight average molecular weight of the polymer is in the range between about 1000-500,000.
Claim 4
Dependent Claim
83 words
An electrooptic light modulator device with a polymeric nonlinear optical component comprising an optically transparent medium of a polymer characterized by the recurring monomeric unit: ##STR19## where R and R 1 are alkyl groups containing between about 1-4 carbon atoms, and R and R 1 taken together with the connecting nitrogen atom form an alicyclic substituent; Y' is a substituent selected from nitro, cyano and trifluoromethyl radicals; and the weight average molecular weight of the polymer is in the range between about 1000-500,000.
Claim 5
Dependent Claim
16 words
An electrooptic light modulator device in accordance with claim 2 wherein the polymer is polymerized 1-(4-Dimethylaminophenyl)-4-(4-nitrophenyl)-1,3-butadiyne.
Claim 6
Dependent Claim
16 words
An electrooptic light modular device in accordance with claim 2 wherein the polymer is polymerized 1-(4-Dimethylaminophenyl)-4-(4-cyanophenyl)-1,3-butadiyne.
Claim 7
Dependent Claim
16 words
An electrooptic light modulator device in accordance with claim 2 wherein the polymer is polymerized 1-(4-Dimethylaminophenyl)-4-(4-trifluoromethylphenyl)-1,3-butadiyne.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-12-07 | 1991-06-08 | 1991-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-12-07 | 1995-06-08 | 1995-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-12-07 | 1999-06-08 | 1999-12-08 | $7700.00 | Window Closed / Lapsed |