Patent ID: 11921425
Assignee: TOKYO OHKA KOGYO CO., LTD.
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC G  C  H | IPC C  G  H

Claim 4:
5. The hard mask-forming composition according to claim 1, wherein the resin (P) contains a resin (P-3) having a structural unit (u31) represented by the following general formula (u31-1):, wherein R is a hydrogen atom, an alkyl group having 1 to 5 carbon atoms, or a halogenated alkyl group having 1 to 5 carbon atoms; Yax1 a single bond or a divalent linking group; Wax1 a (nax1+1)-valent aromatic hydrocarbon group; and nax1 is an integer of 1 to 3.