EP0160790A2
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EP
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Bipyrimidinyl derivatives and liquid crystal compositions containing them
Assignee: JNC Corp
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Filing: 1985-02-14
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Granted: —
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Expires: 2005-02-14
Abstract
Abstract A novel bipyrimidinyl derivative which is superior in practical properties and useful as a high temperature liquid crystal component constituting a physically and chemically stable liquid crystal composition is provided, which bipyrimidinyl derivative is a 2, 5' -disubstituted- 5, 2' -bipyrimidinyl expressed by the formularepresantsrepresents a halogen atom of F, Cℓ or Br or cyano group or an alkyl group or an alkoxy group each having 1 to 10 carbon atoms and R represents an alkyl group or an alkoxy group each having 1 to 10 carbon atoms.
Inventors
- 👤 Kisei Kitano
- 👤 Tetsuya Ogawa
- 👤 Yasuyuki Goto
- 👤 Naoyuki Yoshida
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-02 00:17
CPC Classifications
C; C07; C07D; C07D239/00; C07D239/02; C07D239/24; C07D239/26; C07D239/28; C07D239/32; C07D239/34; C09; C09K; C09K19/00; C09K19/04; C09K19/06; C09K19/34; C09K19/3441; C09K19/345; C09K19/3458; C09K19/3466
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
53 words
2,5'-Disubstituted-5,2'-bipyrimidinyls expressed by the formula wherein represents or X represents a hal- ogeD atom of F,CL or Br or cyano group or an alkyl group or an alkoxy group each having 1 to 10 carbon atoms and R represents an alkyl group or an alkoxy group each having 1 to 10 carbon atoms.
Claim 2
Dependent Claim
53 words
2,5'-Disubstituted-5,2'-bipyrimidinyls expressed by the formula wherein represents or X represents a hal- ogeD atom of F,CL or Br or cyano group or an alkyl group or an alkoxy group each having 1 to 10 carbon atoms and R represents an alkyl group or an alkoxy group each having 1 to 10 carbon atoms.
Claim 3
Dependent Claim
16 words
2-(p-Substituted-phenyl)-5'-alkyl-5,2'-bipyrimidinyls according to claim 1 wherein represents and X is as defined in said formula (I).
Claim 4
Dependent Claim
16 words
2- (Trans-4-alkylcyclohexyl)-5'-substituted-5,2'-bipyrimidinyls according to claim 1 wherein R is as defined above in said formula (I).
Claim 5
Dependent Claim
69 words
A liquid crystal composition having at least two components at least one of which is a 2,5'-disubstituted-5,2'-bipyrimidinyl expressed by the formula wherein represents or X represents a halogen atom of F, Cℓ or Br or cyano group or an alkyl group or an alkoxy group each having 1 to 10 carbon atoms and R represents an alkyl group or an alkoxy group each having 1 to 10 carbon atoms.
Claim 6
Dependent Claim
69 words
A liquid crystal composition having at least two components at least one of which is a 2,5'-disubstituted-5,2'-bipyrimidinyl expressed by the formula wherein represents or X represents a halogen atom of F, Cℓ or Br or cyano group or an alkyl group or an alkoxy group each having 1 to 10 carbon atoms and R represents an alkyl group or an alkoxy group each having 1 to 10 carbon atoms.
Claim 7
Dependent Claim
27 words
A liquid crystal composition according to claim 4 wherein the content of said 2,5'-disubstituted-5,2'-bipyrimidinyl is 2 to 10% by weight based on the weight of the composition.
References Cited (Backward Citations)
No citation records indexed.
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