Patent ID: 8372792

Claim:
A cleaner composition for removing lead-free soldering flux, consisting of a halogen-free organic solvent (A) formed of a compound represented by Formula (1-1) and/or a compound represented by Formula (1-2); an amine-based compound (B) represented by Formula (2); a chelating agent having no amino group (C); as required, water, and as required, nonionic surfactants (excluding the compounds used as Components (A) and (B)), anionic surfactants (excluding polyoxyethylene phosphoric acid ester-based surfactants), cationic surfactants, antifoaming agents, antirusts, and antioxidants, the cleaner composition containing 0.01 to 30 parts by weight of the amine-based compound (B), 0.01 to 10 parts by weight of the chelating agent having no amino group (C), and 0 to 10 parts by weight of water, per 100 parts by weight of the halogen-free organic solvent (A) wherein R 1 represents C 1-6 alkyl group, R 2 represents methyl group or hydrogen atom, X 1 represents C 1-5 alkyl group or hydrogen atom, and “a” represents an integer ranging from 2 to 4, wherein R 3 represents C 1-6 alkyl group, R 4 represents methyl group or hydrogen atom, X 2 represents C 1-5 alkyl group or hydrogen atom, and “b” represents an integer ranging from 2 to 4, wherein R 5 represents C 1-7 alkyl group, Y represents C 1-5 alkyl group or hydrogen atom, “c” is an integer ranging from 1 to 15, and “d” is an integer ranging from 0 to 15.