Patent EP0310081A2 successfully refreshed from Google Patents.
EP0310081A2
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EP
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A ferroelectric liquid-crystalline polymeric composition
Assignee: Idemitsu Kosan Co Ltd
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Filing: 1988-09-29
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Granted: —
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Expires: 2008-09-29
Abstract
Abstract The liquid-crystalline polymeric composition of the invention comprises (A) a non-liquid-crystalline polymeric compound and (B) a low-molecular liquid-crystalline compound each having a proton donor and/or a proton acceptor in the molecular structure and the low-molecular compound has a chiral smectic C phase. By virtue of these functional groups forming hydrogen bonds between the components, the liquid-crystalline polymeric composition of the invention is not a mere blend of the components liable to cause phase separation but is imparted with greatly increased stability and uniformity of the blend as well as responsivity of high speed.
Inventors
- 👤 Kazuhara C/Oidemitsu Kosan Company Limited Morita
- 👤 Shunji C/O Idemitsu Kosan Company Limited Uchida
- 👤 Kimihiro C/O Idemitsu Kosan Company Limited Yuasa
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-01 23:29
CPC Classifications
C; C09; C09K; C09K19/00; C09K19/04; C09K19/38; C09K19/52; C09K19/58; C09K19/582
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
71 words
A ferroelectric polymeric liquid-crystalline composition which comprises, in admixture: (A) a non-liquid-crystalline polymeric compound having a proton donor, a proton acceptor or a combination of a proton donor and a proton acceptor in the molecular structure; and (B) a low-molecular liquid-crystalline compound having a proton donor, a proton acceptor or a combination of a proton donor and a proton acceptor in the molecular structure and having a chiral smectic C phase.
Claim 2
Dependent Claim
71 words
A ferroelectric polymeric liquid-crystalline composition which comprises, in admixture: (A) a non-liquid-crystalline polymeric compound having a proton donor, a proton acceptor or a combination of a proton donor and a proton acceptor in the molecular structure; and (B) a low-molecular liquid-crystalline compound having a proton donor, a proton acceptor or a combination of a proton donor and a proton acceptor in the molecular structure and having a chiral smectic C phase.
Claim 3
Dependent Claim
45 words
The polymeric liquid-crystalline composition as claimed in claim 1 wherein the non-liquid-crystalline polymeric compound has a proton donor, a proton acceptor or a combination of a proton donor and a proton acceptor in the main chain or in the side chain of the molecular structure.
Claim 4
Dependent Claim
143 words
The polymeric liquid-crystalline composition as claimed in claim 1 wherein the low-molecular liquid-crystalline compound is represented by the general formula in which R 1 is -OH or -O-CO-CH 3 , p is a positive integer not exceeding 20 and R 2 is a monovalent group selected from the class consisting of -Pn-Pn-ZR 3 , -Pn-CO-O:Pn-ZR 3 , -Pn-CO-O-Pn-Pn-ZR 3 and -Pn-Pn-COO-Pn-ZR 3 , Pn being a 1,4-phenylene group, Z is -CO-O- or -O-CO-, R 3 being -(CH 2 ) n - C R 4 H-(CH 2 ) m CH 3 or -(CH 2 ) n -C XH- C (CH 3 )H-C z Hs, n being zero or a positive integer not exceeding 5, m being a positive integer not exceeding 6, R 4 being a methyl group or a halogen atom, X being a halogen atom and C being an asymmetric carbon atom.
Claim 5
Dependent Claim
57 words
The polymeric liquid-crystalline composition as claimed in claim 1 wherein the mixing ratio of the non-liquid-crystalline polymeric compound and the low-molecular liquid-crystalline compound is such that the ratio of the total number of the proton donors and proton acceptors in the polymeric compound to that in the low-molecular compound is in the range from 10:1 to 1:2.
References Cited (Backward Citations)
No citation records indexed.
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