Patent ID: 8434667

Claim:
A flux composition comprising, as initial components: a carboxylic acid; and, a polyamine fluxing agent represented by formula I: wherein R 1 , R 2 , R 3 and R 4 are independently selected from a hydrogen, a substituted C 1-80 alkyl group, an unsubstituted C 1-80 alkyl group, a substituted C 7-80 arylalkyl group and an unsubstituted C 7-80 arylalkyl group; wherein R 7 is selected from an unsubstituted C 5-80 alkyl group with at least two tertiary carbons, a substituted C 5-80 alkyl group with at least two tertiary carbons, an unsubstituted C 12-80 arylalkyl group with at least two tertiary carbons and a substituted C 12-80 arylalkyl group with at least two tertiary carbons; and, wherein the two nitrogens shown in formula I are separately bound to one of the at least two tertiary carbons of R 7 ; with the proviso that when the polyamine fluxing agent represented by formula I is according to formula Ia: then zero to three of R 1 , R 2 , R 3 and R 4 is(are) a hydrogen.