EP0372433A2
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EP
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Side chain liquid crystalline polymers exhibiting nonlinear optical response
Assignee: CNA Holdings LLC
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Filing: 1989-12-02
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Granted: —
•
Expires: 2009-12-02
Abstract
Abstract This invention provides novel side chain liquid crystalline polymers. An invention polymer exhibits nonlinear optical response, and has utility as a transparent nonlinear optical component in optical light switch and light modulator devices. A present invention side chain liquid crystalline polymer is illustrated by the following acrylate structure with pendant mesogenic side chains: <CHEM> e
Inventors
- 👤 Anthony J. East
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-05 20:21
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/35; G02F1/355; G02F1/361; G02F1/3615; G02F1/3617; C; C08; C08G; C08G65/00; C08G65/02; C08G65/04; C08G65/22; C09; C09K; C09K19/00; C09K19/04; C09K19/38; C09K19/3833; C09K19/3842; C09K19/3852; C09K19/3861; C09K19/40; C09K19/406; C09K19/408
Claims Analysis
Total Claims: 52
Claim 1
Independent Claim
66 words
A thermotropic liquid crystalline polymer which is characterized by a recurring monomeric unit corresponding to the formula: where P is a polymer main chain unit, S is a flexible spacer group having a linear chain length of between about 1-20 atoms, M is a pendant mesogen containing a divalent 2,6-naphthylene radical, and where the pendant mesogens comprise at least about 10 weight percent of the polymer.
Claim 2
Dependent Claim
66 words
A thermotropic liquid crystalline polymer which is characterized by a recurring monomeric unit corresponding to the formula: where P is a polymer main chain unit, S is a flexible spacer group having a linear chain length of between about 1-20 atoms, M is a pendant mesogen containing a divalent 2,6-naphthylene radical, and where the pendant mesogens comprise at least about 10 weight percent of the polymer.
Claim 3
Dependent Claim
17 words
A liquid crystalline polymer in accordance with claim 1 wherein the main chain is a polyvinyl structure.
Claim 4
Dependent Claim
17 words
A liquid crystalline polymer in accordance with claim 1 wherein the main chain is a polysiloxane structure.
Claim 5
Dependent Claim
17 words
A liquid crystalline polymer in accordance with claim 1 wherein the main chain is a polyoxyalkylene structure.
Claim 6
Dependent Claim
18 words
A liquid crystalline polymer in accordance with claim 1 wherein the main chain is a condensation polymer structure.
Claim 7
Dependent Claim
14 words
A liquid crystalline polymer in accordance with claim 1 which exhibits a smectic mesophase.
Claim 8
Dependent Claim
22 words
A liquid crystalline polymer in accordance with claim 1 which has a glass transition temperature between about 0 ° -120 ° C.
Claim 9
Dependent Claim
22 words
A liquid crystalline polymer in accordance with claim 1 which has a weight average molecular weight in the range between about 2000-200,000.
Claim 10
Dependent Claim
24 words
A liquid crystalline polymer in accordance with claim 1 wherein the polymer has a stable orientation of an external field-induced alignment of pendant mesogens.
Claim 11
Dependent Claim
21 words
A liquid crystalline polymer in accordance with claim 1 wherein the pendant mesogens exhibit a second order nonlinear optical susceptibility 0.
Claim 12
Dependent Claim
21 words
A liquid crystalline polymer in accordance with claim 1 wherein the pendant mesogens exhibit a third order nonlinear optical susceptibility y.
Claim 13
Dependent Claim
63 words
A thermotropic liquid crystalline polymer which is characterized by a recurring monomeric unit corresponding to the formula: where P is a polymer main chain unit, m is an integer with a value of at least 5, S' is a flexible spacer group having a linear chain length of between about 2-20 atoms, X is an electron-donating substituent, and Y is an electron-withdrawing substituent.
Claim 14
Dependent Claim
63 words
A thermotropic liquid crystalline polymer which is characterized by a recurring monomeric unit corresponding to the formula: where P is a polymer main chain unit, m is an integer with a value of at least 5, S' is a flexible spacer group having a linear chain length of between about 2-20 atoms, X is an electron-donating substituent, and Y is an electron-withdrawing substituent.
Claim 15
Dependent Claim
17 words
A liquid crystalline polymer in accordance with claim 12 wherein the main chain is a polyvinyl structure.
Claim 16
Dependent Claim
17 words
A liquid crystalline polymer in accordance with claim 12 wherein the main chain is a polysiloxane structure.
Claim 17
Dependent Claim
17 words
A liquid crystalline polymer in accordance with claim 12 wherein the main chain is a polyoxyalkylene structure.
Claim 18
Dependent Claim
18 words
A liquid crystalline polymer in accordance with claim 12 wherein the main chain is a condensation polymer structure.
Claim 19
Dependent Claim
28 words
A liquid crystalline polymer in accordance with claim 12 wherein X is -0-, -S- or -NR-, where R is hydrogen or a C 1 -C 4 alkyl group.
Claim 20
Dependent Claim
18 words
A liquid crystalline polymer in accordance with claim 12 wherein Y is -N0 2 , -CN- or CFs.
Claim 21
Dependent Claim
20 words
A liquid crystalline polymer in accordance with claim 12 which has a glass transition temperature between about 0 -120° C.
Claim 22
Dependent Claim
15 words
A transparent nonlinear optical medium comprising a liquid crystalline polymer in accordance with claim 12.
Claim 23
Dependent Claim
20 words
A nonlinear optical medium in accordance with claim 20 which is characterized by an external field-induced orientation of aligned mesogens.
Claim 24
Dependent Claim
69 words
A thermotropic liquid crystalline polymer which is characterized by a recurring monomeric unit corresponding to the formula: where P' is a polymer main chain unit, m is an integer with a value of at least 5, n is an integer with a value of zero or one, S is a flexible spacer group having a linear chain length of between about 2-20 atoms, and Y is an electron-withdrawing substituent.
Claim 25
Dependent Claim
69 words
A thermotropic liquid crystalline polymer which is characterized by a recurring monomeric unit corresponding to the formula: where P' is a polymer main chain unit, m is an integer with a value of at least 5, n is an integer with a value of zero or one, S is a flexible spacer group having a linear chain length of between about 2-20 atoms, and Y is an electron-withdrawing substituent.
Claim 26
Dependent Claim
17 words
A liquid crystalline polymer in accordance with claim 22 wherein the main chain is a polyvinyl structure.
Claim 27
Dependent Claim
17 words
A liquid crystalline polymer in accordance with claim 22 wherein the main chain is a polysiloxane structure.
Claim 28
Dependent Claim
17 words
A liquid crystalline polymer in accordance with claim 22 wherein the main chain is a polyoxyalkylene structure.
Claim 29
Dependent Claim
18 words
A liquid crystalline polymer in accordance with claim 22 wherein the main chain is a condensation polymer structure.
Claim 30
Dependent Claim
18 words
A liquid crystalline polymer in accordance with claim 22 wherein Y is -N0 2 , -CN- or CFs.
Claim 31
Dependent Claim
20 words
A liquid crystalline polymer in accordance with claim 22 which has a glass transition temperature between about 0 -120 C.
Claim 32
Dependent Claim
15 words
A transparent nonlinear optical medium comprising a liquid crystalline polymer in accordance with claim 22.
Claim 33
Dependent Claim
20 words
A nonlinear optical medium in accordance with claim 29 which is characterized by an external field-induced orientation of aligned mesogens.
Claim 34
Dependent Claim
88 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 monomeric unit corresponding to the formula: where P' is a polymer main chain unit, S' is a flexible spacer group having a linear chain length of between about 1-20 atoms, M is a pendant mesogen containing a divalent 2,6-naphthylene radical, and where the pendant mesogens comprise at least about 10 weight percent of the polymer and exhibit nonlinear optical susceptibility.
Claim 35
Dependent Claim
88 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 monomeric unit corresponding to the formula: where P' is a polymer main chain unit, S' is a flexible spacer group having a linear chain length of between about 1-20 atoms, M is a pendant mesogen containing a divalent 2,6-naphthylene radical, and where the pendant mesogens comprise at least about 10 weight percent of the polymer and exhibit nonlinear optical susceptibility.
Claim 36
Dependent Claim
21 words
A device in accordance with claim 31 wherein the polymer has a stable orientation of an external field-induced alignment of mesogens.
Claim 37
Dependent Claim
21 words
A device in accordance with claim 31 wherein the nonlinear optical component exhibits second order nonlinear optical susceptibility χ (2) .
Claim 38
Dependent Claim
21 words
A device in accordance with claim 31 wherein the nonlinear optical component exhibits third order nonlinear optical susceptibility χ (3) .
Claim 39
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 monomeric unit corresponding to the formula: where P is a polymer main chain unit, m is an integer with a value of at least 5, S is a flexible spacer group having a linear chain length of between about 2-20 atoms, X is an electron-donating substituent, and Y is an electron-withdrawing substituent.
Claim 40
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 monomeric unit corresponding to the formula: where P is a polymer main chain unit, m is an integer with a value of at least 5, S is a flexible spacer group having a linear chain length of between about 2-20 atoms, X is an electron-donating substituent, and Y is an electron-withdrawing substituent.
Claim 41
Dependent Claim
21 words
A device in accordance with claim 35 wherein the polymer has a stable orientation of an external field-induced alignment of mesogens.
Claim 42
Dependent Claim
21 words
A device in accordance with claim 35 wherein the nonlinear optical component exhibits second order nonlinear optical susceptibility χ (2) .
Claim 43
Dependent Claim
21 words
A device in accordance with claim 35 wherein the nonlinear optical component exhibits third order nonlinear optical susceptibility χ (3) .
Claim 44
Dependent Claim
86 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 monomeric unit corresponding to the formula: where P is a polymer main chain unit, m is an integer with a value of at least 5, n is an integer with a value of zero or one, S' is a flexible spacer group having a linear chain length of between about 2-20 atoms, and Y is an electron-withdrawing substituent.
Claim 45
Dependent Claim
86 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 monomeric unit corresponding to the formula: where P is a polymer main chain unit, m is an integer with a value of at least 5, n is an integer with a value of zero or one, S' is a flexible spacer group having a linear chain length of between about 2-20 atoms, and Y is an electron-withdrawing substituent.
Claim 46
Dependent Claim
21 words
A device in accordance with claim 40 wherein the polymer has a stable orientation of an external field-induced alignment of mesogens.
Claim 47
Dependent Claim
21 words
A device in accordance with claim 40 wherein the nonlinear optical component exhibits second order nonlinear optical susceptibility χ (2) .
Claim 48
Dependent Claim
21 words
A device in accordance with claim 40 wherein the nonlinear optical component exhibits third order nonlinear optical susceptibility χ (3) .
Claim 49
Dependent Claim
78 words
A thermotropic liquid crystalline polymer which is characterized by a recurring monomeric unit corresponding to the formula: where R is hydrogen or a C l -C 4 alkyl group; n is an integer with a value of 2-20, n' is an integer with a value of zero or one, and where the recurring monomeric unit comprises at least about 50 weight percent of the polymer, and the polymer has a glass transition temperature between about 0° -120° C.
Claim 50
Dependent Claim
78 words
A thermotropic liquid crystalline polymer which is characterized by a recurring monomeric unit corresponding to the formula: where R is hydrogen or a C l -C 4 alkyl group; n is an integer with a value of 2-20, n' is an integer with a value of zero or one, and where the recurring monomeric unit comprises at least about 50 weight percent of the polymer, and the polymer has a glass transition temperature between about 0° -120° C.
Claim 51
Dependent Claim
68 words
A thermotropic liquid crystalline polymer which is characterized by a recurring monomeric unit corresponding to the formula: where R is hydrogen or a C 1 -C 4 alkyl group; n is an integer with a value of 2-20, and where the recurring monomer unit comprises at least about 50 weight precent of the polymer, and the polymer has a glass transition temperature between about 0 ° -120 C.
Claim 52
Dependent Claim
68 words
A thermotropic liquid crystalline polymer which is characterized by a recurring monomeric unit corresponding to the formula: where R is hydrogen or a C 1 -C 4 alkyl group; n is an integer with a value of 2-20, and where the recurring monomer unit comprises at least about 50 weight precent of the polymer, and the polymer has a glass transition temperature between about 0 ° -120 C.
References Cited (Backward Citations)
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