EP 3 800 003 A1 [0061] As shown above, the flux composition obtained by mixing rosin or a rosin derivative, an organic acid, and alkanolamine caused migration to occur by the water-drop test, and the insulation resistance value was also lowered. [0062] The flux composition using the rosin-modified product of the present invention suppressed migration caused by the water-drop test and the insulation resistance value was not lowered. [0063] The rosin-modified product and the flux composition using the rosin-modified product of the present invention could suppress the occurrence of migration due to the attachment of a water droplet or the like. [0064] The present embodiment can provide a fluxcomposition comprising a rosin-modifiedproductbeing a reactantofrosin ora rosin derivative andan alkanolamine represented by a following Formula (1), wherein the rosin-modified product has an amide bond obtained by condensing a COOH group of a rosin or a rosin derivative and an NH$_{3-n}$ group in the following Formula (1), or an ester bond obtained by condensing a COOH group of a rosin or a rosin derivative and an OH group in the following Formula (1). [0065] The present embodiment can provide a method formanufacturinga fluxcomposition byusing a rosin-modified product,which isobtainedby mixing and heating a rosin or a rosin derivative, an organic acid and an alkanolamine having a following Formula (1). being produced by a reaction of a rosin or a rosin derivative, an organic acid and an alkanolamine. 1. A rosin-modified product being a reactant of a rosin or a rosin derivative and an alkanolamine represented by a following Formula (1) 2. A flux composition comprising the rosin-modified product according to claim 1. 3. The flux composition according to claim 2 further comprising a reactant of two molecules of alkanolamine. 4. The flux composition according to claim 2 or 3, wherein a mixing amount of the rosin-modified product is 5% by weight to 65% by weight based on a total amount of a flux. 5. The flux composition according to any one of claims 2 to 4 further comprising a phosphoric acid ester or a phosphonic acid ester, wherein a mixing amount of the phosphoric acid ester or the phosphonic acid ester is 1.0% by weight to 15% by weight based on a total amount of a flux.  (1) NH$_{3-n}$-(R-OH)$_{n}$ (n  ≤  3)  (1) NH$_{3-n}$-(R-OH)$_{n}$ (n  ≤  3)  (1) NH$_{3-n}$-(R-OH)$_{n}$ (n  ≤ 3) ; or Claims Ho 13