80  US 8,962,233 B2  79  -continued  The alicyclic hydrocarbon acid-decomposable resin may  contain a plurality of repeating units each containing a lac› tone group. In this case, it is preferred for the acid-decom› posable resin to contain either (1) any one of those of general  formula (AI) in which Ab is a single bond together with any  one of those of general formula (AI) in which Ab is -Ab$_{1 }$ - CO$_{2}$ -,  or (2) a mixture of two of those of general formula  (AI) in whichAb is -Ab$_{1}$-CO$_{2}$-.  The content of repeating unit containing a lactone group  (when there are a plurality of repeating units each containing  a lactone group, the sum thereof), based on all the repeating  units of the resin (B), is preferably in the range of 10 to  70 mo! %, more preferably 20 to 60 mo! %.  It is preferred for the alicyclic hydrocarbon acid-decom› posable resin according to the present invention to have a  repeating unit having an alicyclic hydrocarbon structure sub› stituted with a polar group. The containment of this repeating  unit would realize enhancements of adhesion to substrate and  developer affinity. The polar group is preferably a hydroxyl  group or a cyano group.  The hydroxyl group as the polar group constitutes an alco› holic hydroxyl group.  As the alicyclic hydrocarbon structure substituted with a  polar group, there can be mentioned, for example, any of the  structures of general formulae (VIIa) and (VIIb) below.  In general formula (VIIa),  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 the R$_{2}$c to R$_{4}$ c represents a hydroxyl group or a  cyano group. Preferably, one or two of the R$_{2}$c to R$_{4}$ c are  hydroxyl groups and the remainder is a hydrogen atom. More  preferably, two of the R$_{2}$c to R$_{4}$c are hydroxyl groups and the  remainder is a hydrogen atom.  The groups of general formula (VIIa) preferably have a  dihydroxy form or monohydroxy form, more preferably a  dihydroxy form.  As the repeating units containing any of the groups of  general formula (VIIa) or (VIIb ), there can be mentioned the  repeating units of general formulae (II-AB!) and (II-AB2)  above wherein at least one of R13’ to Rl 6’ has any of the  groups of general formula (VIIa) or (VIIb) as well as the  repeating units of general formula (Alla) or (AIIb) below. As  examples of the former repeating units, there can be men› tioned the structures in which R$_{5 }$ ofthe----COOR$_{5 }$ represents  any of the groups of general formula (VIIa) or (VIIb ).  (Vllb)  (Vila) 