US5155195A
Expired / Lapsed
US
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Sidechain copolymers exhibiting nonlinear optical response
Assignee: Hoechst Celanese Chemical Co
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Filing: 1991-05-16
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Granted: 1992-10-13
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Expires: 2011-05-16
Abstract
Abstract In one embodiment this invention provides a novel type of copolymer which can be formed into a thin film nonlinear optical medium which exhibits superior light transmission properties, and which has excellent adhesion properties when laminated with inorganic or organic layers. An invention copolymer is illustrated by the structure: ##STR1##
Inventors
- 👤 Bernice I. Feuer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:40
CPC Classifications
G; G02; G02F; G02F1/00; G02F1/35; G02F1/355; G02F1/361; G02F1/3615; G02F1/3617; C; C08; C08F; C08F220/00; C08F220/02; C08F220/10; C08F220/34; C08F220/36; C08F230/00; C08F230/04; C08F230/08; C08F230/085
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
136 words
A copolymer which is characterized by recurring monomeric units corresponding to the formula: ##STR16## where R is hydrogen or a C 1 -C 4 alkyl substituent; R 1 is a C 1 -C 8 alkyl substituent; R 2 moieties are selected from the group consisting of a C 1 -C 4 alkyl substituent, a C 1 -C 4 alkoxy group, and an olefinically unsaturated group, and from combinations thereof; n is an integer with a value of 2-12; n 1 is an integer with a value of 0-8; X is an electron-donating group that is --NR--, --O--, or --S--; Z is an electron-withdrawing group that is --NO 2 , --CN, --CF 3 , --CH═C(CN) 2 , --C(CN)═C(CN) 2 or --SO 2 CF 3 ; and the copolymer has a glass transition temperature between about 40°-220° C.
Claim 2
Dependent Claim
136 words
A copolymer which is characterized by recurring monomeric units corresponding to the formula: ##STR16## where R is hydrogen or a C 1 -C 4 alkyl substituent; R 1 is a C 1 -C 8 alkyl substituent; R 2 moieties are selected from the group consisting of a C 1 -C 4 alkyl substituent, a C 1 -C 4 alkoxy group, and an olefinically unsaturated group, and from combinations thereof; n is an integer with a value of 2-12; n 1 is an integer with a value of 0-8; X is an electron-donating group that is --NR--, --O--, or --S--; Z is an electron-withdrawing group that is --NO 2 , --CN, --CF 3 , --CH═C(CN) 2 , --C(CN)═C(CN) 2 or --SO 2 CF 3 ; and the copolymer has a glass transition temperature between about 40°-220° C.
Claim 3
Dependent Claim
136 words
A copolymer which is characterized by recurring monomeric units corresponding to the formula: ##STR17## where R is hydrogen or a C 1 -C 4 alkyl substituent; R 1 is a C 1 -C 8 alkyl substituent; R 2 moieties are selected from the group consisting of a C 1 -C 4 alkyl substituent, a C 1 -C 4 alkoxy group, and an olefinically unsaturated group, and from combinations thereof; n is an integer with a value of 2-12; n 1 is an integer with a value of 0-8; X is an electron-donating group that is --NR--, --O--, or --S--; Z is an electron-withdrawing group that is --NO 2 , --CN, --CF 3 , --CH═C(CH) 2 , --C(CN)═C(CN) 2 or --SO 2 CF 3 ; and the copolymer has a glass transition temperature between about 40°-220° C.
Claim 4
Dependent Claim
136 words
A copolymer which is characterized by recurring monomeric units corresponding to the formula: ##STR17## where R is hydrogen or a C 1 -C 4 alkyl substituent; R 1 is a C 1 -C 8 alkyl substituent; R 2 moieties are selected from the group consisting of a C 1 -C 4 alkyl substituent, a C 1 -C 4 alkoxy group, and an olefinically unsaturated group, and from combinations thereof; n is an integer with a value of 2-12; n 1 is an integer with a value of 0-8; X is an electron-donating group that is --NR--, --O--, or --S--; Z is an electron-withdrawing group that is --NO 2 , --CN, --CF 3 , --CH═C(CH) 2 , --C(CN)═C(CN) 2 or --SO 2 CF 3 ; and the copolymer has a glass transition temperature between about 40°-220° C.
Claim 5
Dependent Claim
136 words
A copolymer which is characterized by recurring monomeric units corresponding to the formula: ##STR18## where R is hydrogen or a C 1 -C 4 alkyl substituent; R 1 is a C 1 -C 8 alkyl substituent; R 2 moieties are selected from the group consisting of a C 1 -C 4 alkyl substituent, a C 1 -C 4 alkoxy group, and an olefinically unsaturated group, and from combinations thereof; n is an integer with a value of 2-12; n 1 is an integer with a value of 0-8; X is an electron-donating group that is --NR--, --O--, or --S--; Z is an electron-withdrawing group that is --NO 2 , --CN, --CF 3 , --CH═C(CN) 2 , --C(CN)═C(CN) 2 or --SO 2 CF 3 ; and the copolymer has a glass transition temperature between about 40°-220° C.
Claim 6
Dependent Claim
136 words
A copolymer which is characterized by recurring monomeric units corresponding to the formula: ##STR18## where R is hydrogen or a C 1 -C 4 alkyl substituent; R 1 is a C 1 -C 8 alkyl substituent; R 2 moieties are selected from the group consisting of a C 1 -C 4 alkyl substituent, a C 1 -C 4 alkoxy group, and an olefinically unsaturated group, and from combinations thereof; n is an integer with a value of 2-12; n 1 is an integer with a value of 0-8; X is an electron-donating group that is --NR--, --O--, or --S--; Z is an electron-withdrawing group that is --NO 2 , --CN, --CF 3 , --CH═C(CN) 2 , --C(CN)═C(CN) 2 or --SO 2 CF 3 ; and the copolymer has a glass transition temperature between about 40°-220° C.
Claim 7
Dependent Claim
136 words
A 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 8 alkyl substituent; R 2 moieties are selected from the group consisting of a C 1 -C 4 alkyl substituent, a C 1 -C 4 alkoxy group, and an olefinically unsaturated group, and from combinations thereof; n is an integer with a value of 2-12; n 1 is an integer with a value of 0-8; X is an electron-donating group that is --NR--, --O--, or --X--; Z is an electron-withdrawing group that is --NO 2 , --CN, --CF 3 , --CH═C(CN) 2 , --C(CN)═C(CN) 2 or --SO 2 CF 3 ; and the copolymer has a glass transition temperature between about 40°-220° C.
Claim 8
Dependent Claim
136 words
A 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 8 alkyl substituent; R 2 moieties are selected from the group consisting of a C 1 -C 4 alkyl substituent, a C 1 -C 4 alkoxy group, and an olefinically unsaturated group, and from combinations thereof; n is an integer with a value of 2-12; n 1 is an integer with a value of 0-8; X is an electron-donating group that is --NR--, --O--, or --X--; Z is an electron-withdrawing group that is --NO 2 , --CN, --CF 3 , --CH═C(CN) 2 , --C(CN)═C(CN) 2 or --SO 2 CF 3 ; and the copolymer has a glass transition temperature between about 40°-220° C.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1995-10-13 | 1996-04-13 | 1996-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-10-13 | 2000-04-13 | 2000-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-10-13 | 2004-04-13 | 2004-10-13 | $7700.00 | Window Closed / Lapsed |