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Ferroelectric liquid-crystalline polymer and epoxide usable to preparation of the ferroelectric liquid-crystalline polymer
Assignee: Idemitsu Kosan Co Ltd
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Filing: 1989-06-16
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Granted: 1990-09-04
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Expires: 2009-06-16
Abstract
Abstract A ferroelectric liquid-crystalline polymer consisting essentially of at least one repeating unit represented by the following general formula: ##STR1## wherein k is an integer having a value of 2 to 30; R 1 is ##STR2## X is --COO-- or --OCO--; and R 2 is --COOR 3 , --OCOR 3 or --OR 3 ; wherein R 3 is ##STR3## wherein each of R 4 and R 5 is independently --CH 3 , a halogen atom or --CN; each of m and n is independently an integer having a value of 0 to 10, with the proviso that when R 4 is --CH 3 , n is not an integer having a value of 0; p is an integer having a value of 0 or 1; and C marked with * is an asymmetric carbon atom.
Inventors
- 👤 Satoshi Hachiya
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:55
CPC Classifications
C; C07; C07C; C07C43/00; C07C43/02; C07C43/03; C07C43/14; C07C43/17; C07C43/20; C07C43/23; C07D; C07D303/00; C07D303/02; C07D303/12; C07D303/18; C07D303/20; C07D303/24; C08; C08G; C08G65/00; C08G65/02; C08G65/04; C08G65/06; C08G65/08; C09; C09K; C09K19/00; C09K19/04; C09K19/38; C09K19/3833; C09K19/3876; C09K19/388
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
131 words
A ferroelectric liquid-crystalline polymer consisting essentially of at least one repeating unit represented by the following general formula: ##STR106## wherein k is an integer having a value of 2 to 30; R 1 is ##STR107## X is --COO-- or --OCO--; and R 2 is --COOR 3 , --COOR 3 or --OR 3 ; wherein R 3 is ##STR108## wherein each of R 4 is independently --CH 3 , a halogen atom or --CN; each of m and n is independently an integer having a value of 0 to 10, with the proviso that when R 4 is --CH 3 , n is not an integer having a value of 0; p is an integer having a value of 0 or 1; and C marked with * is an asymmetric carbon atom.
Claim 2
Dependent Claim
131 words
A ferroelectric liquid-crystalline polymer consisting essentially of at least one repeating unit represented by the following general formula: ##STR106## wherein k is an integer having a value of 2 to 30; R 1 is ##STR107## X is --COO-- or --OCO--; and R 2 is --COOR 3 , --COOR 3 or --OR 3 ; wherein R 3 is ##STR108## wherein each of R 4 is independently --CH 3 , a halogen atom or --CN; each of m and n is independently an integer having a value of 0 to 10, with the proviso that when R 4 is --CH 3 , n is not an integer having a value of 0; p is an integer having a value of 0 or 1; and C marked with * is an asymmetric carbon atom.
Claim 3
Dependent Claim
44 words
The ferroelectric liquid-crystalline polymer as claimed in claim 1, wherein k is an integer having a value of 4 to 20, m is an integer having a value of 0 to 6, and n is an integer having a value of 0 to 6.
Claim 4
Dependent Claim
20 words
The ferroelectric liquid-crystalline polymer as claimed in claim 1 or 2, wherein R 1 is ##STR109## R 3 is ##STR110##
Claim 5
Dependent Claim
127 words
An epoxide having the structure represented by the following general formula: ##STR111## wherein k is an integer having a value of 2 to 30; R 1 is ##STR112## X is --COO-- or --OCO--; and R 2 is --COOR 3 , --OCOR 3 or --OR 3 ; wherein R 3 is ##STR113## wherein each of R 4 and R 5 is independently --CH 3 , a halogen atom or --CN; each of m and n is independently an integer having a value of 0 to 10, with the proviso that when R 4 is --CH 3 , n is not an integer having a value of 0; p is an integer having a value of 0 or 1; and C marked with * is an asymmetric carbon atom.
Claim 6
Dependent Claim
127 words
An epoxide having the structure represented by the following general formula: ##STR111## wherein k is an integer having a value of 2 to 30; R 1 is ##STR112## X is --COO-- or --OCO--; and R 2 is --COOR 3 , --OCOR 3 or --OR 3 ; wherein R 3 is ##STR113## wherein each of R 4 and R 5 is independently --CH 3 , a halogen atom or --CN; each of m and n is independently an integer having a value of 0 to 10, with the proviso that when R 4 is --CH 3 , n is not an integer having a value of 0; p is an integer having a value of 0 or 1; and C marked with * is an asymmetric carbon atom.
Claim 7
Dependent Claim
42 words
The epoxide as claimed in claim 4, wherein k is an integer having a value of 4 to 20, m is an integer having a value of 0 to 6, and n is an integer having a value of 0 to 6.
Claim 8
Dependent Claim
19 words
The epoxide as claimed in claim 4 or 5, wherein R 1 is ##STR114## and R 3 is ##STR115##
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-09-03 | 1994-03-05 | 1994-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-09-03 | 1998-03-05 | 1998-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-09-03 | 2002-03-05 | 2002-09-04 | $7700.00 | Window Closed / Lapsed |