EP0348873A2
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EP
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Ferroelectric liquid-crystalline polymer and epoxide usable for preparing the ferroelectric liquid-crystalline polymer
Assignee: Idemitsu Kosan Co Ltd
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Filing: 1989-06-26
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Granted: —
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Expires: 2009-06-26
Abstract
Abstract A ferroelectric liquid-crystalline polymer consisting essentially of at least one repeating unit represented by the following general formula: wnerein k is an integer having a value of 2 to 30; X is -COO- or -OCO-; and R 2 is -COOR 3 , -OCOR 3 or -OR 3 ; wherein wherein each of R 4 and R 5 is independently -CH s , 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 C/O Idemitsu Kosan Co. Ltd. Hachiya
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-29 22:04
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
124 words
A ferroelectric liquid-crystalline polymer consisting essentially of at least one repeating unit represented by the following general formula: wherein k is an integer having a value of 2 to 30; X is -COO- or -OCO-; and R 2 is -COOR 3 , -OCOR 3 or -OR 3 ; wherein 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 R4 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
124 words
A ferroelectric liquid-crystalline polymer consisting essentially of at least one repeating unit represented by the following general formula: wherein k is an integer having a value of 2 to 30; X is -COO- or -OCO-; and R 2 is -COOR 3 , -OCOR 3 or -OR 3 ; wherein 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 R4 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 or and R 3 is
Claim 5
Dependent Claim
118 words
An epoxide having the structure represented by the following general formula: wherein k is an integer having a value of 2 to 30; X is -COO- or -OCO-; and R 2 is -COOR 3 , -OCOR 3 or -OR 3 ; wherein 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
118 words
An epoxide having the structure represented by the following general formula: wherein k is an integer having a value of 2 to 30; X is -COO- or -OCO-; and R 2 is -COOR 3 , -OCOR 3 or -OR 3 ; wherein 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
18 words
The epoxide as claimed in claim 4 or 5, wherein R 1 is or and R 3 is
References Cited (Backward Citations)
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