Patent ID: 11965059
Assignee: NISSAN CHEMICAL CORPORATION
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC C  G  H | IPC C  G  H

Claim 0:
1. A composition for forming a protective film against a wet etching liquid for semiconductor, comprising:
a reaction product (P) of a diepoxy compound (B) and a divalent or multivalent proton-generating compound (C), the reaction product (P) including a structure represented by the following formula (1):

*—Y—Ar—(OH)n  Formula (1), wherein Ar represents an aryl group having 6 to 40 carbon atoms, n represents an integer of 3 to 10, —Y— represents —OCO—, —O—, or —S—, and * indicates a bonding site to a terminal of the molecule of reaction product (P), the molecule of the reaction product (P) having a unit structure represented by the following formula (2):, , wherein Q1 and Q2 represent a divalent organic group, and A1 to A6 represent a hydrogen atom, a methyl group, or an ethyl group; and further
an organic solvent (S).