Patent ID: 8487056
Filing Date: 2013-07-16
Classification: G03F,Y10S

Abstract:
1. A polymeric compound comprising: a structural unit (a0) represented by general formula (a0-1) shown below, a structural unit (a1) derived from an acrylate ester containing an acid dissociable, dissolution inhibiting group, and a structural unit (a3) derived from an acrylate ester containing a hydroxy group-containing aliphatic hydrocarbon group represented by general formula (a3-1) shown below, wherein an amount of the structural unit (a3) based on a combined total of all structural units constituting the polymeric compound (A1) is in a range of 1 to 30 mol %: in formula (a0-1), R represents a hydrogen atom, an alkyl group of 1 to 5 carbon atoms or a halogenated alkyl group of 1 to 5 carbon atoms, R 2 represents a divalent linking group, and R 3 represents a cyclic group containing —SO 2 — within the ring skeleton thereof; and in formula (a3-1), R represents a hydrogen atom, an alkyl group of 1 to 5 carbon atoms or a halogenated alkyl group of 1 to 5 carbon atoms; each of R a , R b and R c independently represents a hydrogen atom, an alkyl group of 1 to 5 carbon atoms, a hydroxy group or a hydroxyalkyl group, provided that at least one of R a , R b and R c represents a hydroxy group or a hydroxyalkyl group; and R d represents a single bond or a divalent linking group.