EP0364923A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Mesomorphic compound, liquid crystal composition containing same and liquid crystal device using same
Assignee: Canon Inc
•
Filing: 1989-10-16
•
Granted: —
•
Expires: 2009-10-16
Abstract
Abstract A mesomorphic compound represented by the following formula (I): <CHEM> wherein R1 and R2 respectively denote a linear or branched alkyl group having 1 - 18 carbon atoms capable of having a substituent; X1 denotes any one of a single bond, <CHEM> X2 denotes any one of a single bond, <CHEM> Z1 denotes any one of <CHEM> A1 denotes -A2- or -A2-A3- wherein A2 and A3 respectively denote any one of <CHEM> c
Inventors
- 👤 Takeshi Togano
- 👤 Takao Takiguchi
- 👤 Yoko Yamada
- 👤 Masanobu Asaoka
- 👤 Kenji Shinjo
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-08 17:25
CPC Classifications
C; C07; C07D; C07D409/00; C07D409/02; C07D409/10; C07D333/00; C07D333/02; C07D333/04; C07D333/06; C07D333/14; C07D333/16; C07D333/24; C07D333/26; C07D333/30; C07D333/32; C07D333/38; C07D409/12; C07D413/00; C07D413/02; C07D413/12; C07D417/00; C07D417/02; C07D417/12; C09; C09K; C09K19/00; C09K19/04; C09K19/06; C09K19/34; C09K19/3491; C09K19/3497
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
86 words
A mesomorphic compound represented by the following formula (I): wherein R 1 and R 2 respectively denote a linear or branched alkyl group having 1 - 18 carbon atoms capable of having a substituent; X 1 denotes any one of a single bond X 2 denotes any one of a single bond, Z 1 denotes any one of -CH 2 O- and -CH=C(CN)-; and A 1 denotes -A z - or -A 2 -A 3 - wherein A 2 and A3 respectively denote any one of
Claim 2
Dependent Claim
86 words
A mesomorphic compound represented by the following formula (I): wherein R 1 and R 2 respectively denote a linear or branched alkyl group having 1 - 18 carbon atoms capable of having a substituent; X 1 denotes any one of a single bond X 2 denotes any one of a single bond, Z 1 denotes any one of -CH 2 O- and -CH=C(CN)-; and A 1 denotes -A z - or -A 2 -A 3 - wherein A 2 and A3 respectively denote any one of
Claim 3
Dependent Claim
20 words
A mesomorphic compound according to Claim 1, which is represented by any one of the following formula (1-1) to (1-190):
Claim 4
Dependent Claim
25 words
A ferroelectric chiral smectic liquid crystal composition comprising at least two mesomorphic compounds, at least one which is a mesomorphic compound according to Claim 1.
Claim 5
Dependent Claim
34 words
A ferroelectric chiral smectic liquid crystal composition according to Claim 3, which comprises 1 -500 wt. parts of a mesomorphic compound according to Claim 1 per 100 wt. parts of the remaining mesomorphic compound.
Claim 6
Dependent Claim
27 words
A liquid crystal device, comprising a pair of electrode plates and a ferroelectric chiral smectic liquid crystal composition according to Claim 3 disposed between the electrode plates.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.