Patent EP0191600A2 successfully refreshed from Google Patents.
EP0191600A2
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Polyphenyl-based ester compounds and liquid crystal compositions containing same
Assignee: Ajinomoto Co Inc
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Filing: 1986-02-06
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Granted: —
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Expires: 2006-02-06
Abstract
Abstract Polyphenyl-based liquid crystal compounds represented by the following general formula (1) and liquid crystal composition containing the same: wherein R' represents a straight or branched C 1-18 alkyl group, haloalkyl group, aralkyl group or haloaralkyl group with or without optically active carbon, R 2 represents a straight or branched C 1-6 alkyl group, haloalkyl group or aralkyl group with or without optically active carbon, W represents single bond, -O-, -OCOO-, -OCO- or -COO-, T represents a halogen atom or a methyl group, but when W is selected from the group consisting of single bond, -O- or -OCOO- T is only a halogen atom, X represents -OCO-, - COO-, -C=C-, -CH=N-, -N=CH, Y represents single bond, -0-, -COO-, -OCO-, -CH 2 -, -OCH 2 -, -COOCH,- or - OCOCH 2 -, Z, and Z 2 represent a hydrogen or halogen atom, a cyano group or nitro group, Z, may be the same or different from Z 2 , n and m are one or more than one each and a total of n and m is three or more than three, the carbon atom marked with * is an asymmetric carbon atom.
Inventors
- 👤 Ryoichi C/O Central Research Lab. Higuchi
- 👤 Takao C/O Central Research Lab. Sakurai
- 👤 Tatsuru C/O Central Research Lab. Tabohashi
- 👤 Naoka C/O Central Research Lab. Mikami
- 👤 Kiriko C/O Central Research Lab. Akaiwa
- 👤 Eri C/O Central Research Lab. Yamamoto
- 👤 Koji C/O Central Research Lab. Takeuchi
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-27 22:42
CPC Classifications
C; C09; C09K; C09K19/00; C09K19/04; C09K19/06; C09K19/08; C09K19/10; C09K19/20; C09K19/2007; C09K19/2021; C09K19/12; C09K19/126
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
190 words
A liquid crystal compound represented by the following general formula (1): wherein R' is a straight or branched C 1 . 18 alkyl group, haloalkyl group, aralkyl group or haloaralkyl group each with or without optically active carbon; R 2 is a straight or branched C 1-6 alkyl group, haloalkyl group or aralkyl group each with or without optically active carbon; W is a single bond, -O-, -OCOO-, -OCO- or -COO-; T is a halogen atom or a methyl group when W is -OCO- or -COO-; T is a halogen atom when W is a single bond, -O- or -OCOO-; X is -OCO-, -COO-, -C=C-, -CH=N-or -N = CH; Y is a single bond, -O-, -COO-, -OCO-, -CH 2 -, -OCH 2 -, COOCH 2 -, or -OCOCH 2 -; Z, and Z 2 are each a hydrogen or halogen atom, a cyano group or a nitro group, Z, being the same as or different from Z 2 ; n and m are each one or more and the total of n and m is three or more; the carbon atom marked with the asterisk being an asymmetric carbon atom.
Claim 2
Dependent Claim
190 words
A liquid crystal compound represented by the following general formula (1): wherein R' is a straight or branched C 1 . 18 alkyl group, haloalkyl group, aralkyl group or haloaralkyl group each with or without optically active carbon; R 2 is a straight or branched C 1-6 alkyl group, haloalkyl group or aralkyl group each with or without optically active carbon; W is a single bond, -O-, -OCOO-, -OCO- or -COO-; T is a halogen atom or a methyl group when W is -OCO- or -COO-; T is a halogen atom when W is a single bond, -O- or -OCOO-; X is -OCO-, -COO-, -C=C-, -CH=N-or -N = CH; Y is a single bond, -O-, -COO-, -OCO-, -CH 2 -, -OCH 2 -, COOCH 2 -, or -OCOCH 2 -; Z, and Z 2 are each a hydrogen or halogen atom, a cyano group or a nitro group, Z, being the same as or different from Z 2 ; n and m are each one or more and the total of n and m is three or more; the carbon atom marked with the asterisk being an asymmetric carbon atom.
Claim 3
Dependent Claim
69 words
A smectic liquid crystal compound having the following formula: wherein R' represents straight or branched C 1-18 alkyl group with or without optically active carbon, R 2 represents straight or branched C 1-6 alkyl group, X is -COO- or -OCO- , Y is -COO-, -OCO-, -OCH 2 -, -COOCH,-, -OCOCH 2 -, - CH 2 - or -0-, the carbon atom marked with * is an asymmetric carbon atom.
Claim 4
Dependent Claim
69 words
A smectic liquid crystal compound having the following formula: wherein R' represents straight or branched C 1-18 alkyl group with or without optically active carbon, R 2 represents straight or branched C 1-6 alkyl group, X is -COO- or -OCO- , Y is -COO-, -OCO-, -OCH 2 -, -COOCH,-, -OCOCH 2 -, - CH 2 - or -0-, the carbon atom marked with * is an asymmetric carbon atom.
Claim 5
Dependent Claim
58 words
A smectic liquid crystal compound having the following formula: wherein R' represents straight or branched C 1-18 alkyl group with or without optically active carbon, R 2 represents straight or branched 0 1-6 group, X is -COO- or -OCO-, Y is -COOCH 2 -, -COO-, -OCOCH 2 , the carbon atom marked with is an asymmetric carbon atom.
Claim 6
Dependent Claim
58 words
A smectic liquid crystal compound having the following formula: wherein R' represents straight or branched C 1-18 alkyl group with or without optically active carbon, R 2 represents straight or branched 0 1-6 group, X is -COO- or -OCO-, Y is -COOCH 2 -, -COO-, -OCOCH 2 , the carbon atom marked with is an asymmetric carbon atom.
Claim 7
Dependent Claim
65 words
A smectic liquid crystal compound having the following formula: wherein R' reprsents straight or branched C 1-18 alkyl group with or without optically active carbon, R 2 represents straight or branched C 1-6 alkyl group, W is -COO-, -0-, - OCO- or -OCOO-, X is -COO- or -OCO-, Y is -COOCH 2 -or -OCO-, the carbon atom marked with * is an asymmetric carbon atom.
Claim 8
Dependent Claim
65 words
A smectic liquid crystal compound having the following formula: wherein R' reprsents straight or branched C 1-18 alkyl group with or without optically active carbon, R 2 represents straight or branched C 1-6 alkyl group, W is -COO-, -0-, - OCO- or -OCOO-, X is -COO- or -OCO-, Y is -COOCH 2 -or -OCO-, the carbon atom marked with * is an asymmetric carbon atom.
Claim 9
Dependent Claim
62 words
A smectic liquid crystal compound having the following formula: wherein R' represents straight or branched C 1-18 alkyl group with or without optically active carbon, R' represents straight or branched C 1-6 alkyl group, W is -COO- or -0-, X is -COO- or -OCO-, Y is -COOCH 2 - or -OCO-, the carbon atom marked with * is an asymmetric carbon atom.
Claim 10
Dependent Claim
62 words
A smectic liquid crystal compound having the following formula: wherein R' represents straight or branched C 1-18 alkyl group with or without optically active carbon, R' represents straight or branched C 1-6 alkyl group, W is -COO- or -0-, X is -COO- or -OCO-, Y is -COOCH 2 - or -OCO-, the carbon atom marked with * is an asymmetric carbon atom.
Claim 11
Dependent Claim
65 words
A smectic liquid crystal compound having the following formula: wherein R' represents straight or branched C 1-18 alkyl group with or without optically active carbon, R' represents straight or branched C 1-6 alkyl group, X is -OCO- or -COO- , Y is -OCO- or -COOCH 2 -, T is a halogen or methyl group, the carbon atom marked with * is an asymmetric carbon atom.
Claim 12
Dependent Claim
65 words
A smectic liquid crystal compound having the following formula: wherein R' represents straight or branched C 1-18 alkyl group with or without optically active carbon, R' represents straight or branched C 1-6 alkyl group, X is -OCO- or -COO- , Y is -OCO- or -COOCH 2 -, T is a halogen or methyl group, the carbon atom marked with * is an asymmetric carbon atom.
Claim 13
Dependent Claim
101 words
A smectic liquid crystal compound having the following formula: wherein R' represents straight or branched C 1-18 alkyl group with or without optically active carbon, R' represents straight or branched C 1-6 alkyl group, Y is -OCO- or - COOCH 2 -, n and m one or more than one each and total of n and m is three and more than three, when either n or m is 1, Z corresponding to 1 is a halogen and when n or m is 2, Z corresponding to 2 is a hydrogen, the carbon atom marked with * is an asymmetric carbon.
Claim 14
Dependent Claim
101 words
A smectic liquid crystal compound having the following formula: wherein R' represents straight or branched C 1-18 alkyl group with or without optically active carbon, R' represents straight or branched C 1-6 alkyl group, Y is -OCO- or - COOCH 2 -, n and m one or more than one each and total of n and m is three and more than three, when either n or m is 1, Z corresponding to 1 is a halogen and when n or m is 2, Z corresponding to 2 is a hydrogen, the carbon atom marked with * is an asymmetric carbon.
Claim 15
Dependent Claim
19 words
A liquid crystal composition containing a smectic liquid crystal compound as claimed in any of claims 1 to 8.
References Cited (Backward Citations)
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