Patent ID: 6759101
Filing Date: 2004-07-06
Classification: C07C,C07D,C07F,C09K

Abstract:
A liquid crystal composition comprising one or more compounds of the formula: wherein:a and b are 0 or 1; A and B, independently, are selected from the group consisting of a single bond, â€”COOâ€”, â€”OOCâ€”, â€”CH2â€”CH2â€”, â€”OCH2â€”, â€”CH2â€”Oâ€”, â€”CH&boxH;CHâ€” (cis or trans); â€”Câ‰¡Câ€”, â€”CH&boxH;CHâ€”CH&boxH;CHâ€” (cis or trans); Y represents up to four substituents on a given ring where the substituents are selected from a halogen, CN or NO2; Core rings A, B and C can be aromatic or alicyclic, if aromatic one or two ring carbons can be replaced with a heteroatom or if alicyclic rings can contain 3-10 carbon atoms and optionally can contain a double bond, wherein one or two CH2 of the alicyclic ring can be replaced with O or a C&boxH;O group; m and n are integers ranging from 1 to 20, inclusive; p is an integer ranging from 2 to 20, inclusive; q is 0 or an integer ranging from 1 to 20; inclusive; n+m is 4 to 20 and p+q is 4 to 20; X1 and X2, independently, are â€”Oâ€” or a single bond; and R and Râ€², independent of other R or Râ€² in the alkenyl tail are hydrogens or alkyl groups having from one to twenty carbon atoms.