in which  Ar2 represents an aromatic ring, in which a substituent  other than -(A-B) groups may further be introduced,  p is an integer of 1 or greater,  A represents a single bond or any one, or a combination  of two or more members selected from among an  alkylene  group,  -0-, -S-, ----C(=0)-,  -C(=0)0 -, -S(=0)-, -S(=0)2-and -OS  (=0)2-,  B represents a group containing an aliphatic group hav- ing 3 or more carbon atoms,  provided that when pis 2 or greater, a plurality of-(A-B)  groups may be identical to or different from each  other, and  *  *  *  *  *  164  US 8,962,233 B2  163 