Patent ID: 11891505
Assignee: FUJIFILM CORPORATION
Field: Measurement (Instruments)
Classification: CPC C  A  G | IPC C  G

Claim 1:
2. The resin composition for an acoustic matching layer according to claim 1, wherein the polyamine compound (B1) is at least one polyamine compound represented by general formula (II), (III), or (IV) below:, where, in general formula (II), s represents an integer of 1 to 100, n1 represents an integer of 2 to 20, L1 represents an n1-valent aliphatic hydrocarbon group having 1 to 20 carbon atoms or an n1-valent aromatic hydrocarbon group having 6 to 20 carbon atoms, and L2 represents an aliphatic hydrocarbon chain having 2 to 6 carbon atoms,
in general formula (III), t represents an integer of 1 to 100, n2 represents an integer of 1 to 19, L3 represents an (n2+1)-valent aliphatic hydrocarbon group having 1 to 20 carbon atoms or an (n2+1)-valent aromatic hydrocarbon group having 6 to 20 carbon atoms, and L4 represents an aliphatic hydrocarbon chain having 2 to 6 carbon atoms, and
in general formula (IV), u represents an integer of 1 to 100, n3 and n4 each represent an integer of 1 or more, a sum of n3 and n4 is 20 or less, L5 represents an (n3+1)-valent aliphatic hydrocarbon group having 1 to 20 carbon atoms or an (n3+1)-valent aromatic hydrocarbon group having 6 to 20 carbon atoms, L6 represents an (n4+1)-valent aliphatic hydrocarbon group having 1 to 20 carbon atoms or an (n4+1)-valent aromatic hydrocarbon group having 6 to 20 carbon atoms, and L7 represents an aliphatic hydrocarbon chain having 2 to 6 carbon atoms.