Patent ID: 8580142
Filing Date: 2013-11-12
Classification: C09K,G02F

Abstract:
1. A compound represented by formula (a): wherein Ra and Rb are each independently hydrogen, alkyl having 1 to 12 carbons, alkenyl having 2 to 12 carbons, alkoxy having 1 to 11 carbons, alkoxyalkyl having 2 to 11 carbons, or alkenyloxy having 2 to 11 carbons, and in these alkyl, alkenyl, alkoxy, alkoxyalkyl, and alkenyloxy, arbitrary hydrogen may be replaced by fluorine; ring A Z W is —CH m and n are each independently 0, 1, or 2, and the sum of m and n is 1 or 2, provided that when the sum of m and n is 1, W is —CH when m=1 and n=0, ring A when ring A