US4757130A
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Condensation polymers with pendant side chains exhibiting nonlinear optical response
Assignee: CNA Holdings LLC
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Filing: 1987-07-01
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Granted: 1988-07-12
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Expires: 2007-07-01
Abstract
Abstract This invention provides novel condensation polymers with pendant side chains which exhibit nonlinear optical response. The polymers have utility as a transparent optical component of optical switch or light modulator devices. An invention polymer is illustrated by a condensation polymer of the following structure: ##STR1##
Inventors
- 👤 Ronald N. DeMartino
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:24
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/68; C08G63/685; C08G63/6854; C08G63/6858; G; G02; G02F; G02F1/00; G02F1/35; G02F1/355; G02F1/361; G02F1/3615; G02F1/3617
Claims Analysis
Total Claims: 29
Claim 1
Independent Claim
60 words
A polymer which is characterized by a recurring condensation unit corresponding to the formula: ##STR9## where R is an alkylene radical containing between about 1-10 carbon atoms; R 1 is a divalent organic radical containing between about 1-20 carbon atoms; m is an integer with a value of zero or one; and n is an integer of at least 3.
Claim 2
Dependent Claim
60 words
A polymer which is characterized by a recurring condensation unit corresponding to the formula: ##STR9## where R is an alkylene radical containing between about 1-10 carbon atoms; R 1 is a divalent organic radical containing between about 1-20 carbon atoms; m is an integer with a value of zero or one; and n is an integer of at least 3.
Claim 3
Dependent Claim
24 words
A polymer in accordance with claim 1 wherein R 1 is a divalent aliphatic, alicyclic or aromatic radical containing between about 1-20 carbon atoms.
Claim 4
Dependent Claim
14 words
A polymer in accordance with claim 1 wherein R 1 is an alkylene radical.
Claim 5
Dependent Claim
14 words
A polymer in accordance with claim 1 wherein R 1 is a phenylene radical.
Claim 6
Dependent Claim
18 words
A polymer in accordance with claim 1 wherein the molecular weight of the polymer is between about 1500-500,000.
Claim 7
Dependent Claim
19 words
A polymer in accordance with claim 1 wherein the polymer has a glass transition temperature between about 40°-120° C.
Claim 8
Dependent Claim
15 words
A polymer in accordance with claim 1 wherein the polymer exhibits thermotropic liquid crystalline properties.
Claim 9
Dependent Claim
67 words
A nonlinear optical medium comprising a centrosymmetric configuration of polymer molecules characterized by a recurring condensation unit corresponding to the formula: ##STR10## where R is an alkylene radical containing between about 1-10 carbon atoms; R 1 is a divalent organic radical containing between about 1-20 carbon atoms; m is an integer with a value of zero or one; and n is an integer of at least 3.
Claim 10
Dependent Claim
67 words
A nonlinear optical medium comprising a centrosymmetric configuration of polymer molecules characterized by a recurring condensation unit corresponding to the formula: ##STR10## where R is an alkylene radical containing between about 1-10 carbon atoms; R 1 is a divalent organic radical containing between about 1-20 carbon atoms; m is an integer with a value of zero or one; and n is an integer of at least 3.
Claim 11
Dependent Claim
21 words
A nonlinear optical medium in accordance with claim 8 wherein the divalent R 1 radical in the polymer formula is alkylene.
Claim 12
Dependent Claim
21 words
A nonlinear optical medium in accordance with claim 8 wherein the divalent R 1 radical in the polymer formula is phenylene.
Claim 13
Dependent Claim
19 words
A nonlinear optical medium in accordance with claim 8 wherein the polymer has a molecular weight between about 1500-500,000.
Claim 14
Dependent Claim
33 words
A nonlinear optical medium in accordance with claim 8 wherein the medium exhibits third order nonlinear optical susceptibility χ.sup.(3) of at least about 0.5×10 -12 esu as measured at 1.91 μm excitation wavelength.
Claim 15
Dependent Claim
67 words
A nonlinear optical medium comprising a noncentrosymmetric configuration of polymer molecules characterized by a recurring condensation unit corresponding to the formula: ##STR11## where R is an alkylene radical containing between about 1-10 carbon atoms; R 1 is a divalent organic radical containing between about 1-20 carbon atoms; m is an integer with a value of zero or one; and n is an integer of at least 3.
Claim 16
Dependent Claim
67 words
A nonlinear optical medium comprising a noncentrosymmetric configuration of polymer molecules characterized by a recurring condensation unit corresponding to the formula: ##STR11## where R is an alkylene radical containing between about 1-10 carbon atoms; R 1 is a divalent organic radical containing between about 1-20 carbon atoms; m is an integer with a value of zero or one; and n is an integer of at least 3.
Claim 17
Dependent Claim
21 words
A nonlinear optical medium in accordance with claim 13 wherein the divalent R 1 radical in the polymer formula is alkylene.
Claim 18
Dependent Claim
21 words
A nonlinear optical medium in accordance with claim 13 wherein the divalent R 1 radical in the polymer formula is phenylene.
Claim 19
Dependent Claim
19 words
A nonlinear optical medium in accordance with claim 13 wherein the polymer has a molecular weight between about 1500-500,000.
Claim 20
Dependent Claim
21 words
A nonlinear optical medium in accordance with claim 13 wherein the noncentrosymmetric configuration of molecules in the medium is external field-induced.
Claim 21
Dependent Claim
32 words
A nonlinear optical medium in accordance with claim 13 wherein the medium exhibits second order nonlinear susceptibility χ.sup.(2) of at least about 0.5×10 -7 esu as measured at 1.91 μm excitation wavelength.
Claim 22
Dependent Claim
80 words
An optical switch or light modulator device with an organic nonlinear optical component consisting of a transparent solid medium comprising a polymer which is characterized by a recurring condensation unit corresponding to the formula: ##STR12## where R is an alkylene radical containing between about 1-10 carbon atoms; R 1 is a divalent organic radical containing between about 1-20 carbon atoms; m is an integer with a value of zero or one; and n is an integer of at least 3.
Claim 23
Dependent Claim
80 words
An optical switch or light modulator device with an organic nonlinear optical component consisting of a transparent solid medium comprising a polymer which is characterized by a recurring condensation unit corresponding to the formula: ##STR12## where R is an alkylene radical containing between about 1-10 carbon atoms; R 1 is a divalent organic radical containing between about 1-20 carbon atoms; m is an integer with a value of zero or one; and n is an integer of at least 3.
Claim 24
Dependent Claim
18 words
A device in accordance with claim 19 wherein the divalent R radical in the polymer formula is alkylene.
Claim 25
Dependent Claim
18 words
A device in accordance with claim 19 wherein the divalent R radical in the polymer formula is phenylene.
Claim 26
Dependent Claim
17 words
A device in accordance with claim 19 wherein the polymer has a molecular weight between about 1500-500,000.
Claim 27
Dependent Claim
18 words
An organic compound corresponding to the formula: ##STR13## where n is an integer with a value of 1-10.
Claim 28
Dependent Claim
18 words
An organic compound corresponding to the formula: ##STR13## where n is an integer with a value of 1-10.
Claim 29
Dependent Claim
16 words
An organic compound in accordance with claim 23 wherein the integer has a value of 2.
References Cited (Backward Citations)
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