EP 3 800 003 A1 [0030] Thereactantofa rosin orarosin derivative and alkanolamine may include the compositionofStructuralFormula (2), the composition of Structural Formula (3), or both the composition of Structural Formula (2) and the composition of Structural Formula (3) (as described above, the above-described Structural Formulas (2) and (3) are an aspect of using diethanolamine as alkanolamine, but in the case of using another alkanolamine, a part corresponding to diethanolamine is replaced by the alkanolamine). [0031] The contents of the rosin or the rosin derivative, the organic acid, and the alkanolamine, which are used when producing the rosin-modified product, may be 40% by weight to 80% by weight of the rosin or the rosin derivative, 1% by weight to 15% by weight of the organic acid, and 1% by weight to 30% by weight of the alkanolamine. [0032] It could be confirmed that, in a case where the content of the rosin or the rosin derivative that is used when producing the rosin-modified product is less than 40% by weight, the rosin-modified product is sticky. On the otherhand, it could be confirmed that, in a case where the content of the rosin or the rosin derivative that is used when producing the rosin-modified product is more than 80% by weight, the migration suppression effect is weak. [0033] It could be confirmed that, in a case where the content of the organic acid that is used when producing the rosin-modified product is more than 15% by weight, an unreacted organic acid is precipitated to become an unstable rosin-modified product. [0034] It could be confirmed that, in a case where the content of the alkanolamine that is used when producing the rosin-modified product is more than 30% by weight, the insulation resistance value is decreased by unreacted al- 5 Formula (3) Formula (2)