Manufacturing method of additives for papermaking and additives for papermaking

摘要

PROBLEM TO BE SOLVED: To provide a method for producing an additive for papermaking, which can obtain an additive for papermaking which maintains the moistening effect of paper and can reduce the contents of dihalohydrin and monohalohydrin. An epihalohydrin (C) is added to a mixed solution of a saturated aliphatic monoalcohol (A), an aliphatic dibasic acid and / or a derivative thereof, and a polyamide polyamine (B) which is a condensate of a polyalkylene polyamine. It comprises a step of adding and carrying out an addition reaction and then carrying out a crosslinking reaction to obtain a reaction product (D), wherein the mixed solution contains 5 to 70 parts by weight of the component (A) with respect to 100 parts by weight of the component (B). A method for producing an additive for papermaking. [Selection diagram] None