US5079321A
Expired / Lapsed
US
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Nonlinear optical acrylic polymers and use thereof in optical and electro-optic devices
Assignee: United States Department of the Navy
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Filing: 1990-07-16
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Granted: 1992-01-07
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Expires: 2010-07-16
Abstract
Abstract This invention relates to acrylic polymers and more specifically to polyacrylamides and polyacrylates such as poly{(2-[(N-2-methyl-5-nitrophenylamino)ethyl acrylate]} and poly[(N-2-methyl-4-nitrophenyl)acrylamide]. These acrylic polymers are particularly useful as nonlinear optical components in various electrical devices for processing optical signals including interferometors, optical switches, optical amplifiers, generators, computational devices and the like.
Inventors
- 👤 Leslie H. Sperling
- 👤 Clarence J. Murphy
- 👤 Warren A. Rosen
- 👤 Himanshu Jain
- 👤 Warren N. Herman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:39
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; C08F20/36; C08F20/52; C08F20/54; C08F20/60; C09; C09K; C09K2323/00; C09K2323/03; C09K2323/031
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
77 words
An acrylic polymer capable of exhibiting nonlinear optical responses in an electric or electromagnetic field having the formula: ##STR7## where X is a monovalent moiety selected from the group consisting of (a) ##STR8## where R 1 is either a hydrogen, methyl or ethyl group, R 2 is a lower alkyl group of 1 to 5 carbon atoms, y has a value ranging from 0 to 5 and n has a value ranging from about 50 to 10,000.
Claim 2
Dependent Claim
77 words
An acrylic polymer capable of exhibiting nonlinear optical responses in an electric or electromagnetic field having the formula: ##STR7## where X is a monovalent moiety selected from the group consisting of (a) ##STR8## where R 1 is either a hydrogen, methyl or ethyl group, R 2 is a lower alkyl group of 1 to 5 carbon atoms, y has a value ranging from 0 to 5 and n has a value ranging from about 50 to 10,000.
Claim 3
Dependent Claim
14 words
The acrylic polymer of claim 1 further characterized in that X is (a) ##STR9##
Claim 4
Dependent Claim
14 words
The acrylic polymer of claim 1 further characterized in that X is (b) ##STR10##
Claim 5
Dependent Claim
14 words
The acrylic polymer of claim 1 further characterized in that X is (c) ##STR11##
Claim 6
Dependent Claim
14 words
The acrylic polymer of claim 1 further characterized in that X is (d) ##STR12##
Claim 7
Dependent Claim
14 words
The acrylic polymer of claim 1 further characterized in that R 1 is hydrogen.
Claim 8
Dependent Claim
16 words
The acrylic polymer of claim 1 further characterized in that R 1 is a methyl group.
Claim 9
Dependent Claim
16 words
The acrylic polymer of claim 1 further characterized in that R 2 is a methyl group.
Claim 10
Dependent Claim
16 words
The acrylic polymer of claim 1 further characterized in that Y has the value of 0.
Claim 11
Dependent Claim
19 words
The acrylic polymer of claim 1 in that n has a value ranging from about 50 to about 10,000.
Claim 12
Dependent Claim
12 words
The acrylic polymer of claim 1 further characterized as poly [N-(2-methyl-4-nitrophenyl) acrylamide].
Claim 13
Dependent Claim
12 words
The acrylic polymer of claim 1 further characterized as poly(2-[N-(2-methyl-5-nitrophenylamino) ethyl acrylate]}.
Claim 14
Dependent Claim
44 words
The polymer of claim 1 further characterized in that the acrylic polymer is an acrylate wherein R 1 is hydrogen and R 2 is a methyl group, Y has a value of 1 and n has a value ranging from about 1,000 to 5,000.
Claim 15
Dependent Claim
12 words
The acrylic polymer of claim 2 further characterized as poly [N-(2-methyl-4-nitrophenyl) acrylamide].
Claim 16
Dependent Claim
24 words
The polymer of claim 1 further characterized as having an average molecular weight, determined by its intrinsic viscosity, ranging from about 15,000 to 30,000.
Claim 17
Dependent Claim
15 words
The polymer of claim 1 further characterized wherein the index of refraction is about 1.6.
Claim 18
Dependent Claim
16 words
The polymer of claim 1 further characterized as having a T g of about 210° C.
References Cited (Backward Citations)
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| 7.5 Years (Year 8) | 1999-01-06 | 1999-07-08 | 2000-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-01-06 | 2003-07-08 | 2004-01-07 | $7700.00 | Window Closed / Lapsed |