Patent ID: 11931808
Assignee: MITSUI MINING & SMELTING CO., LTD.
Field: Materials, metallurgy (Chemistry)
Classification: CPC B  H | IPC B  H

Claim 0:
1. A bonding composition comprising copper powder, a liquid medium, and a reducing agent, wherein:
the reducing agent contains at least one amino group and a plurality of hydroxyl groups;
the reducing agent has a boiling point that is higher than a boiling point of the liquid medium;
the reducing agent has a melting point that is equal to or below the sintering temperature of the copper powder; and
the reducing agent is represented by formula (1) or (2) below:, wherein:
R1 to R5 each independently represent a hydrogen atom, a hydroxyl group, a saturated or unsaturated aliphatic group having 1 to 10 carbon atoms, or a saturated or unsaturated aliphatic group having 1 to 10 carbon atoms and containing a hydroxyl group; and at least two of R1 to R5 contain a hydroxyl group; and
R6 to R11 each independently represent a hydrogen atom, a hydroxyl group, a hydrocarbon group having 1 to 10 carbon atoms, or a hydrocarbon group having 1 to 10 carbon atoms and containing a hydroxyl group; R12 represents a hydrocarbon group having 1 to 10 carbon atoms or a hydrocarbon group having 1 to 10 carbon atoms and containing a hydroxyl group; and at least two of R6 to R11 contain a hydroxyl group.