| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an additive for paper which is capable of simultaneously imparting sufficient sizability and good flexibility to the paper in good valance while suppressing deterioration in interlaminar strength. <P>SOLUTION: The additive for the paper comprises: an amide-amine compound (a) that is obtained by reacting 1 mol of a polyamine mixture comprising 25-60 mol% of a compound A represented by the formula (1) and 40-75 mol% of a compound B represented by the formula (2), with 2-5 mol of a 12-24C aliphatic monocarboxylic acid, and has an amine value of 40-220 mgKOH/g; and a polyoxy alkylene polyamine (b). The additive for the paper contains 5-40 pts.mass of the polyoxy alkylene polyamine (b) with respect to 100 pts.mass of the amide-amine compound (a). (In the formula, x+y represents an integer of 0 to 2, and z represents an integer of 3 to 5.) <P>COPYRIGHT: (C)2013,JPO&INPIT |
