Patent ID: 10730989

Abstract:
In a method for producing a (meth)acrylamide polymer papermaking additive obtaining a (meth)acrylamide polymer by obtaining a first polymer by polymerizing a first polymerization component containing a (meth)acrylamide and polymerizing a second polymerization component containing a tertiary amino monomer under the presence of the first polymer, the first polymerization component and/or the second polymerization component contain(s) a (meth)allyl sulfonate, a ratio of the tertiary amino monomer in the first polymerization component with respect to 100 mol of the (meth)acrylamide in the first polymerization component is 0.1 mol or less, and a ratio of the (meth)acrylamide in the second polymerization component with respect to 100 mol of the tertiary amino monomer in the second polymerization component is 1.0 mol or less.