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EP0164721A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Novel liquid crystal compound and liquid crystal composition containing same

Assignee: JNC Corp
•
Filing: 1985-06-10
•
Granted: —
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Expires: 2005-06-10
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Abstract

Abstract A novel pyridine derivative capable of increasing the dielectric anisotropy value (△ε) or optical anisotropy value (An) of the liquid crystal composition obtained by comprising the derivative and lowering the driving voltages of liquid crystal display elements having used the composition, and also a liquid crystal composition containing the pyridine derivative are provided, which pyridine derivative is expressed by the formula wherein R represents an alkyl group or an alkoxy group each of 1-10 carbon atoms; X represents or . ; Y represents or ; when Y is , Z represents and A represents F, Cℓ or cyano group; and when Y is , Z represents and A represents an alkyl group or an alkoxy group each of 1 - 10 carbon atoms.

Inventors

  • 👤 Shigeru Sugimori
  • 👤 Kazunori Nigorikawa

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-06 10:08
CPC Classifications
C; C07; C07D; C07D213/00; C07D213/02; C07D213/04; C07D213/24; C07D213/28; C07D213/30; C07D213/60; C07D213/62; C07D213/63; C07D213/65; C09; C09K; C09K19/00; C09K19/04; C09K19/06; C09K19/34; C09K19/3441; C09K19/3444

Claims Analysis

Total Claims: 7
Claim 1
Independent Claim 70 words
A pyridine derivative expressed by the formula wherein R represents an alkyl group or an alkoxy group each of 1 - 10 carbon atoms; X represents or ; Y represents or ; when Y is , Z represents and A represents F, Cℓ or cyano group; and when Y is , Z represents and A represents an alkyl group or an alkoxy group each of 1 - 10 carbon atoms.
Claim 2
Dependent Claim 70 words
A pyridine derivative expressed by the formula wherein R represents an alkyl group or an alkoxy group each of 1 - 10 carbon atoms; X represents or ; Y represents or ; when Y is , Z represents and A represents F, Cℓ or cyano group; and when Y is , Z represents and A represents an alkyl group or an alkoxy group each of 1 - 10 carbon atoms.
Claim 3
Dependent Claim 36 words
A pyridine derivative according to claim 1, expressed by the formula wherein R represents an alkyl group or an alkoxy group each of 1 to 10 carbon atoms and A represents F, Cℓ or cyano group.
Claim 4
Dependent Claim 36 words
A pyridine derivative according to claim 1, expressed by the formula wherein R represents an alkyl group or an alkoxy group each of 1 to 10 carbon atoms and A represents F, Cℓ or cyano group.
Claim 5
Dependent Claim 31 words
A pyridine derivative according to claim 1, expressed by the formula wherein R and A both represent an alkyl group or an alkoxy group each of 1 to 10 carbon atoms.
Claim 6
Dependent Claim 31 words
A pyridine derivative according to claim 1, expressed by the formula wherein R and A both represent an alkyl group or an alkoxy group each of 1 to 10 carbon atoms.
Claim 7
Dependent Claim 25 words
A liquid crystal composition having at least two components at least one of which is selected from the pyridine derivatives set forth in claim 1.

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