US4804255A
Expired / Lapsed
US
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Acrylic polymers exhibiting chiral and nonlinear optical properties
Assignee: CNA Holdings LLC
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Filing: 1987-10-05
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Granted: 1989-02-14
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Expires: 2007-10-05
Abstract
Abstract In one embodiment this invention provides a nonlinear optical medium which is a transparent film of a thermoplastic polymer composed of recurring monomeric units corresponding to the formula: ##STR1##
Inventors
- 👤 Eui W. Choe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 01:11
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/35; G02F1/355; G02F1/361; G02F1/3615; G02F1/3617; C; C08; C08F; C08F20/00; C08F20/02; C08F20/10; C08F20/34
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
A light switch or light modulator device with a polymeric nonlinear optical component comprising a transparent solid medium of a polymer which is characterized by at least about 20 weight percent of the total polymer weight of a recurring monomeric unit corresponding to the formula: ##STR9## where R is a substituent selected from hydrogen and C 1 -C 4 alkyl groups; m is an integer of at least 3; n is an integer of about 1-24; n 1 is 0 or 1; Z is --NO 2 , --CN or --CF 3 ; and wherein the pendant ester group exhibits chiral optical properties and nonlinear optical response.
Claim 2
Dependent Claim
106 words
A light switch or light modulator device with a polymeric nonlinear optical component comprising a transparent solid medium of a polymer which is characterized by at least about 20 weight percent of the total polymer weight of a recurring monomeric unit corresponding to the formula: ##STR9## where R is a substituent selected from hydrogen and C 1 -C 4 alkyl groups; m is an integer of at least 3; n is an integer of about 1-24; n 1 is 0 or 1; Z is --NO 2 , --CN or --CF 3 ; and wherein the pendant ester group exhibits chiral optical properties and nonlinear optical response.
References Cited (Backward Citations)
US4631328A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-02-14 | 1992-08-15 | 1993-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-02-14 | 1996-08-15 | 1997-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-02-14 | 2000-08-15 | 2001-02-14 | $7700.00 | Window Closed / Lapsed |