Patent ID: 6613246
Filing Date: 2003-09-02
Classification: C07C,C09K

Abstract:
A polymerizable liquid crystal compound represented by the formula (IIa) or (IIb):Q1â€”L1â€”Cy1â€”(CH&boxH;CH)nâ€”COâ€”NR1â€”Cy2â€”Oâ€”COâ€”(CH&boxH;CH)mâ€”Cy3â€”L3â€”Q2â€ƒâ€ƒ(IIa) Q1â€”L1â€”Cy1â€”(CH&boxH;CH)nâ€”COâ€”NR1â€”Cy2â€”(CH&boxH;CH)mâ€”COâ€”Oâ€”Cy3â€”L3â€”Q2â€ƒâ€ƒ(IIb) in which each of Q1 and Q2 independently is a polymerizable group; each of L1 and L3 independently is a divalent linking group; each of Cy1, Cy2 and Cy3 independently is a divalent cyclic group; R1 is hydrogen or an alkyl group having 1 to 7 carbon atoms; and each of n and m independently is 0 or 1.