US4978476A
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Side chain polymers exhibiting nonlinear optical response
Assignee: Hoechst Celanese Chemical Co
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Filing: 1990-04-02
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Granted: 1990-12-18
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Expires: 2010-04-02
Abstract
Abstract This invention provides novel side chain polymers which exhibit nonlinear optical response, and which have utility as a transparent optical component in all-optical and electrooptical light switch and light modulator devices. An invention side chain polymer is illustrated by the following structure: ##STR1##
Inventors
- 👤 Diane E. Allen
- 👤 Ronald N. DeMartino
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 05:39
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/35; G02F1/355; G02F1/361; G02F1/3615; G02F1/3617; C; C09; C09K; C09K19/00; C09K19/04; C09K19/38; C09K19/3833; C09K19/3842; C09K19/3852; C09K19/3861
Claims Analysis
Total Claims: 28
Claim 1
Independent Claim
63 words
An amorphous polymer which is characterized by recurring monomeric units corresponding to the formula: ##STR17## where R is hydrogen or a C 1 -C 4 alkyl substituent; m is an integer of 5; n is an integer between about 1-20; and A is ##STR18## where X is --S--, --O-- or --NR--; and Z is, independently, --H, --CN, --NO 2 or --CF 3 .
Claim 2
Dependent Claim
63 words
An amorphous polymer which is characterized by recurring monomeric units corresponding to the formula: ##STR17## where R is hydrogen or a C 1 -C 4 alkyl substituent; m is an integer of 5; n is an integer between about 1-20; and A is ##STR18## where X is --S--, --O-- or --NR--; and Z is, independently, --H, --CN, --NO 2 or --CF 3 .
Claim 3
Dependent Claim
20 words
A polymer in accordance with claim 1 which has a weight average molecular weight in the range between about 5000-200,000.
Claim 4
Dependent Claim
20 words
A polymer in accordance with claim 1 which has a glass transition temperature in the range between about 40°-150° C.
Claim 5
Dependent Claim
79 words
An amorphous acrylic copolymer which is characterized by recurring monomeric units corresponding to the formula: ##STR19## where R is hydrogen or a C 1 -C 4 alkyl substituent; R 1 is a C 1 -C 6 alkyl substituent; m and m 1 are integers which total at least 10; n is an integer between about 1-20; and A is ##STR20## where X is --S--, --O-- or --NR--; and Z is, independently, --H, --CN, --NO 2 or --CF 3 .
Claim 6
Dependent Claim
79 words
An amorphous acrylic copolymer which is characterized by recurring monomeric units corresponding to the formula: ##STR19## where R is hydrogen or a C 1 -C 4 alkyl substituent; R 1 is a C 1 -C 6 alkyl substituent; m and m 1 are integers which total at least 10; n is an integer between about 1-20; and A is ##STR20## where X is --S--, --O-- or --NR--; and Z is, independently, --H, --CN, --NO 2 or --CF 3 .
Claim 7
Dependent Claim
21 words
An acrylic copolymer in accordance with claim 4 which has a weight average molecular weight in the range between about 5000-200,000.
Claim 8
Dependent Claim
21 words
An acrylic copolymer in accordance with claim 4 which has a glass transition temperature in the range between about 40°-150° C.
Claim 9
Dependent Claim
74 words
A nonlinear optical medium consisting of a transparent film of an amorphous polymer which is characterized by recurring monomeric units corresponding to the formula: ##STR21## where R is hydrogen or a C 1 -C 4 alkyl substituent; m is an integer of at least 5; n is an integer between about 1-20; and A is ##STR22## where X is --S----O-- or --NR--; and Z is, independently, --H, --CN, --NO 2 or --CF 3 .
Claim 10
Dependent Claim
74 words
A nonlinear optical medium consisting of a transparent film of an amorphous polymer which is characterized by recurring monomeric units corresponding to the formula: ##STR21## where R is hydrogen or a C 1 -C 4 alkyl substituent; m is an integer of at least 5; n is an integer between about 1-20; and A is ##STR22## where X is --S----O-- or --NR--; and Z is, independently, --H, --CN, --NO 2 or --CF 3 .
Claim 11
Dependent Claim
31 words
A nonlinear optical medium in accordance with claim 7 which is characterized by an external field-induced orientation of aligned polymer side chains, and which exhibits second order nonlinear optical susceptibility χ.sup.(2).
Claim 12
Dependent Claim
88 words
A nonlinear optical medium consisting of a transparent film of an amorphous acrylic copolymer which is characterized by recurring monomeric units corresponding to the formula: ##STR23## where R is hydrogen or a C 1 -C 4 alkyl substituent; R is a C 1 -C 6 alkyl substituent; m and m 1 are integers which total at least 10; n is an integer between about 1-20; and A is ##STR24## where X is --S--, --O-- or --NR--; and Z is, independently, --H, --CN, --NO 2 or --CF 3 .
Claim 13
Dependent Claim
88 words
A nonlinear optical medium consisting of a transparent film of an amorphous acrylic copolymer which is characterized by recurring monomeric units corresponding to the formula: ##STR23## where R is hydrogen or a C 1 -C 4 alkyl substituent; R is a C 1 -C 6 alkyl substituent; m and m 1 are integers which total at least 10; n is an integer between about 1-20; and A is ##STR24## where X is --S--, --O-- or --NR--; and Z is, independently, --H, --CN, --NO 2 or --CF 3 .
Claim 14
Dependent Claim
32 words
A nonlinear optical medium in accordance with claim 9 which is characterized by an external field-induced orientation of aligned polymer side chains, and which exhibits second order nonlinear optical susceptibility χ.sup.( 2).
Claim 15
Dependent Claim
89 words
In an optical light switch or light modulator device the improvement which comprises a polymeric nonlinear optical component comprising a transparent solid medium of an amorphous polymer which is characterized by recurring monomeric units corresponding to the formula: ##STR25## where R is hydrogen or a C 1 -C 4 alkyl substituent; m is an integer of at least 5; n is an integer between about 1-20; and A is ##STR26## where X is --S--, --O-- or --NR--; and Z is, independently, --H, --CN, --NO 2 or --CF 3 .
Claim 16
Dependent Claim
89 words
In an optical light switch or light modulator device the improvement which comprises a polymeric nonlinear optical component comprising a transparent solid medium of an amorphous polymer which is characterized by recurring monomeric units corresponding to the formula: ##STR25## where R is hydrogen or a C 1 -C 4 alkyl substituent; m is an integer of at least 5; n is an integer between about 1-20; and A is ##STR26## where X is --S--, --O-- or --NR--; and Z is, independently, --H, --CN, --NO 2 or --CF 3 .
Claim 17
Dependent Claim
19 words
An optical device in accordance with claim 11 wherein the polymer medium exhibits third order nonlinear optical susceptibility χ.sup.(3).
Claim 18
Dependent Claim
35 words
An optical device in accordance with claim 11 wherein the polymer medium has a stable orientation of an external field-induced alignment of polymer side chains, and the medium exhibits second order nonlinear optical susceptibility χ.sup.(2).
Claim 19
Dependent Claim
25 words
An optical device in accordance with claim 11 wherein the polymeric nonlinear optical component exhibits less than about 10 percent scattering of transmitted incident light.
Claim 20
Dependent Claim
20 words
An optical device in accordance with claim 11 which is adapted to double the frequency of an incident laser beam.
Claim 21
Dependent Claim
103 words
In an optical light switch or light modulator device the improvement which comprises a polymeric nonlinear optical waveguide component comprising a transparent solid medium of an amorphous acrylic copolymer which is characterized by recurring monomeric units corresponding to the formula: ##STR27## where R is hydrogen or a C 1 -C 4 alkyl substituent; R 1 is a C 1 -C 6 alkyl substituent; m and ml are integers which total at least 10; n is an integer between about 1-20; and A is ##STR28## where X is --S--, --O-- or --NR--; and Z is, independently, --H, --CN, --NO 2 or --CF 3 .
Claim 22
Dependent Claim
103 words
In an optical light switch or light modulator device the improvement which comprises a polymeric nonlinear optical waveguide component comprising a transparent solid medium of an amorphous acrylic copolymer which is characterized by recurring monomeric units corresponding to the formula: ##STR27## where R is hydrogen or a C 1 -C 4 alkyl substituent; R 1 is a C 1 -C 6 alkyl substituent; m and ml are integers which total at least 10; n is an integer between about 1-20; and A is ##STR28## where X is --S--, --O-- or --NR--; and Z is, independently, --H, --CN, --NO 2 or --CF 3 .
Claim 23
Dependent Claim
19 words
An optical device in accordance with claim 16 wherein the polymer medium exhibits third order nonlinear optical susceptibility χ.sup.(3).
Claim 24
Dependent Claim
35 words
An optical device in accordance with claim 16 wherein the polymer medium has a stable orientation of an external field-induced alignment of polymer side chains, and the medium exhibits second order nonlinear optical susceptibility χ.sup.(2).
Claim 25
Dependent Claim
25 words
An optical device in accordance with claim 16 wherein the polymeric nonlinear optical component exhibits less than about 10 percent scattering of transmitted incident light.
Claim 26
Dependent Claim
20 words
An optical device in accordance with claim 16 which is adapted to double the frequency of an incident laser beam.
Claim 27
Dependent Claim
49 words
An acrylic monomer corresponding to the formula: ##STR29## where R is hydrogen or a C 1 -C 4 alkyl substituent; n is an integer between about 1-20; and A is ##STR30## where X is --S--, --O-- or--NR--; and Z is, independently, --H, --CN, --NO 2 or --CF 3 .
Claim 28
Dependent Claim
49 words
An acrylic monomer corresponding to the formula: ##STR29## where R is hydrogen or a C 1 -C 4 alkyl substituent; n is an integer between about 1-20; and A is ##STR30## where X is --S--, --O-- or--NR--; and Z is, independently, --H, --CN, --NO 2 or --CF 3 .
References Cited (Backward Citations)
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1993-12-17 | 1994-06-18 | 1994-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-12-17 | 1998-06-18 | 1998-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-12-17 | 2002-06-18 | 2002-12-18 | $7700.00 | Window Closed / Lapsed |