US4607095A
Expired / Lapsed
US
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Nonlinear optical organic substrate
Assignee: Celanese Corp
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Filing: 1985-03-05
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Granted: 1986-08-19
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Expires: 2005-03-05
Abstract
Abstract In one embodiment this invention provides a nonlinear optical substrate which comprises a transparent film of an external field-induced noncentrosymmetric macroscopic orientation of poly[[benzo(1,2-d:5,4-d')bisthiazole-2,6-diyl]-1,4-phenylene] molecules: ##STR1##
Inventors
- 👤 James E. Kuder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 02:53
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/35; G02F1/355; G02F1/361; G02F1/3615; G02F1/3616; C; C08; C08G; C08G75/00; C08G75/32
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
59 words
A nonlinear optical medium comprising a noncentrosymmetric configuration of aligned poly[[benzo(1,2-d:5,4-d')bisthiazole-2,6-diyl]-1,4-phenylene] polymer molecules corresponding to the formula: ##STR6## where n is an integer with an average value between about 4-100; wherein the noncentrosymmetric alignment of polymer molecules is induced with an external field, and the nonlinear optical medium exhibits a Miller's delta of at least about one square meter/coulomb.
Claim 2
Dependent Claim
59 words
A nonlinear optical medium comprising a noncentrosymmetric configuration of aligned poly[[benzo(1,2-d:5,4-d')bisthiazole-2,6-diyl]-1,4-phenylene] polymer molecules corresponding to the formula: ##STR6## where n is an integer with an average value between about 4-100; wherein the noncentrosymmetric alignment of polymer molecules is induced with an external field, and the nonlinear optical medium exhibits a Miller's delta of at least about one square meter/coulomb.
Claim 3
Dependent Claim
20 words
A nonlinear optical medium in accordance with claim 1 wherein the polymer molecules are aligned in a host liquid medium.
Claim 4
Dependent Claim
20 words
A nonlinear optical medium in accordance with claim 1 wherein the polymer molecules are aligned in a host solid medium.
References Cited (Backward Citations)
US4051108A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-08-18 | 1990-02-17 | 1990-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-08-18 | 1994-02-17 | 1994-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-08-18 | 1998-02-17 | 1998-08-19 | $7700.00 | Window Closed / Lapsed |