US5262086A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid crystal compounds
Assignee: Showa Shell Sekiyu KK
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Filing: 1992-06-26
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Granted: 1993-11-16
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Expires: 2012-06-26
Abstract
Abstract (R)- and (S)-enantiomer composition represented by the formula (I) having sufficient high optical purity for exhibiting optically tristable states in S*(3) phase; <IMAGE> (I) wherein Ra means a C5-C14 alkyl group or a C5-C14 alkoxy group, preferably a C5-C14 alkyl group, Rb means a C4-C12 normal alkyl group or a C4-C12 branched alkyl group, X means a <IMAGE> group or a <IMAGE> group, Z means a fluorine containing alkyl group, preferably a trifluoromethyl group and * shows an optically active carbon.
Inventors
- 👤 Yoshiichi Suzuki
- 👤 Horiyuki Mogamiya
- 👤 Ichiro Kawamura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:18
CPC Classifications
C; C09; C09K; C09K19/00; C09K19/02; C09K19/0266; C09K19/04; C09K19/06; C09K19/08; C09K19/10; C09K19/20; C09K19/2007; C09K19/2021
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
74 words
(R)- and (S)-enantiomer composition represented by the formula (I) having sufficient high optical purity for exhibiting optically tristable states in S*(3) phase; wherein Ra means a C 5 -C 14 alkyl group, Rb means a C 4 -C 12 normal alkyl group or a C 4 -C 12 branched alkyl group, X means a ##STR64## group or a ##STR65## group, Z means a fluorine containing alkyl group and * shows an optically active carbon.
Claim 2
Dependent Claim
74 words
(R)- and (S)-enantiomer composition represented by the formula (I) having sufficient high optical purity for exhibiting optically tristable states in S*(3) phase; wherein Ra means a C 5 -C 14 alkyl group, Rb means a C 4 -C 12 normal alkyl group or a C 4 -C 12 branched alkyl group, X means a ##STR64## group or a ##STR65## group, Z means a fluorine containing alkyl group and * shows an optically active carbon.
Claim 3
Dependent Claim
68 words
(R)- and (S)-enantiomer composition represented by the formula (I) having sufficient high optical purity for exhibiting optically tristable states in S*(3) phase; ##STR66## wherein Ra means a C 5 -C 14 alkoxy group; Rb means a C4-C 12 normal alkyl group or a C 4 -C 12 branched alkyl group, X means a ##STR67## group Z means a fluorine containing alkyl group and * an optically active carbon.
Claim 4
Dependent Claim
68 words
(R)- and (S)-enantiomer composition represented by the formula (I) having sufficient high optical purity for exhibiting optically tristable states in S*(3) phase; ##STR66## wherein Ra means a C 5 -C 14 alkoxy group; Rb means a C4-C 12 normal alkyl group or a C 4 -C 12 branched alkyl group, X means a ##STR67## group Z means a fluorine containing alkyl group and * an optically active carbon.
Claim 5
Dependent Claim
13 words
(R)- and (S)-enantiomer composition according to claim 1, wherein X means ##STR68## group.
Claim 6
Dependent Claim
13 words
(R)- and (S)-enantiomer composition according to claim 1, wherein X means ##STR69## group.
Claim 7
Dependent Claim
23 words
(R)- and (S)-enantiomer composition according to claim 1, 2, 3 or 4, wherein Z means CF 3 or C 2 F 5 .
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