US4717508A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Organic nonlinear optical substrates
Assignee: CNA Holdings LLC
•
Filing: 1985-09-03
•
Granted: 1988-01-05
•
Expires: 2005-09-03
Abstract
Abstract This invention provides organic solid solutions which exhibit nonlinear optical properties. Illustrative of the invention is an optically clear solid solution of poly(N,N-dimethylacrylamide) and 13,13-di(n-hexydecylamino)-14,14-dicyano-4,5,9,10-tetrahydropyrenoquin odimethane.
Inventors
- 👤 Ronald N. DeMartino
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:03
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/16; C08K5/315; G; G02; G02F; G02F1/00; G02F1/35; G02F1/355; G02F1/361; G02F1/3615; G02F1/3617
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
119 words
An optically transparent solid solution comprising a homogeneous blend of an organic compound component which exhibits nonlinear optical response, and a thermoplastic polymer component which has a weight average molecular weight between about 1000-500,000 and which contains a recurring monomeric unit corresponding to the formula: ##STR7## where R is a substituent selected from hydrogen, methyl and ethyl groups, and R 1 is an alkyl substituent containing between about 1-4 carbon atoms; wherein the organic compound component is present in a quantity of at least about 25 weight percent based on the weight of solid solution, and the organic compound component has a charge asymmetric electronic structure consisting of an electron-withdrawing group which is in conjugation with an electron-donating group.
Claim 2
Dependent Claim
119 words
An optically transparent solid solution comprising a homogeneous blend of an organic compound component which exhibits nonlinear optical response, and a thermoplastic polymer component which has a weight average molecular weight between about 1000-500,000 and which contains a recurring monomeric unit corresponding to the formula: ##STR7## where R is a substituent selected from hydrogen, methyl and ethyl groups, and R 1 is an alkyl substituent containing between about 1-4 carbon atoms; wherein the organic compound component is present in a quantity of at least about 25 weight percent based on the weight of solid solution, and the organic compound component has a charge asymmetric electronic structure consisting of an electron-withdrawing group which is in conjugation with an electron-donating group.
Claim 3
Dependent Claim
19 words
An optically transparent solid solution in accordance with claim 1 wherein the organic compound component has a nitroaniline structure.
Claim 4
Dependent Claim
19 words
An optically transparent solid solution in accordance with claim 1 wherein the organic compound component has a quinodimethane structure.
Claim 5
Dependent Claim
18 words
An optically transparent solid solution in accordance with claim 1 wherein the thermoplastic polymer component is a homopolymer.
Claim 6
Dependent Claim
18 words
An optically transparent solid solution in accordance with claim 1 wherein the thermoplastic polymer component is a copolymer.
Claim 7
Dependent Claim
17 words
An optically transparent solid solution in accordance with claim 1 wherein the thermoplastic polymer component is poly(N,N-dimethylacrylamide).
Claim 8
Dependent Claim
17 words
An optically transparent solid solution in accordance with claim 1 wherein the thermoplastic polymer component is poly(N,N-dimethylmethacrylamide).
References Cited (Backward Citations)
US3371220A
Cited
US3395329A
Cited
US3895242A
Cited
US3965375A
Cited
US4199698A
Cited
US4431263A
Cited
US4376899A
Cited
US4428873A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-01-04 | 1991-07-06 | 1992-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-01-04 | 1995-07-06 | 1996-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-01-04 | 1999-07-06 | 2000-01-05 | $7700.00 | Window Closed / Lapsed |