US 2012/0003590 Al  40  Jan. 5, 2012  (Vllb)  (Vile)  (Vlld)  (Alie)  (Alld)  -continued  -continued  [0278]  In formulae (VIIa) to (VIIc), each of R$_{2}$c to R$_{4}$ c  independently represents a hydrogen atom, a hydroxyl group  or a cyano group, provided that at least one of R$_{2}$c to R$_{4}$ c  represents a hydroxyl group or a cyano group. A structure  where one or two members out ofR$_{2}$c to R$_{4}$ c are a hydroxyl  group with the remaining being a hydrogen atom is preferred.  In formula (VIIa), it is more preferred that two members out  of R$_{2}$c to R$_{4}$ c are a hydroxyl group and the remaining is a  hydrogen atom.  [0279]  The repeating unit having a partial structure repre› sented by formulae (VIIa) to (VIId) includes repeating units  represented by the following formulae (Ana) to (AIId):  [0280]  In formulae (Alla) to (AIId), R$_{1}$c represents a  hydrogen atom, a methyl group, a trifluoromethyl group or a  hydroxymethyl group.  [0281]  R$_{2}$c to R$_{4}$ c have the same meanings as R$_{2}$c to R$_{4}$ c in  formulae (VIIa) to (VIIc). The resin (P) may or may not  contain a polar group-containing repeating unit but in the case  of containing the repeating unit, the content thereof is pref› erably from 1 to 60 mo!  %, more preferably from 5 to 50 mo!  %, based on all repeating units in the resin (P).  [0282]  Specific examples of the polar group-containing  repeating unit are illustrated below, but the present invention  is not limited thereto.  (Alla)  ~~~e  coo  R3e  R$_{2}$ e  (Allb) 