A method for producing an aqueous dispersion of hollow polymer particles, a method for producing a composition for paper coating, and a method for producing coated paper.

摘要

The present invention includes the following: a core forming step of forming core polymer particles (A) by copolymerizing a monomer mixture (a); a first shell layer forming step of forming a first shell layer (B) which substantially surrounds the core polymer particles (A) and is not swollen by a base by copolymerizing a monomer mixture (b) in the presence of the core polymer particles (A); a core swelling step of swelling the core polymer particles (A) by adding a base to an aqueous dispersion containing the core polymer particles (A) on which the first shell layer (B) has been formed in an amount of 0.1 to 30 parts by weight with respect to a total of 100 parts by weight of a monomer contained in the monomer mixture (a) and the monomer mixture (b); and a shell swelling step of swelling the first shell layer (B) by adding a monomer mixture (c) to an aqueous dispersion containing the core polymer particles (A) on which the first shell layer (B) has been formed in an amount of 0.1 to 45 parts by weight with respect to a total of 100 parts by weight of a monomer contained in the monomer mixture (a) and the monomer mixture (b), in which a difference in water contents represented by (a water content in the core polymer particles (A) on which the first shell layer (B) has been formed after the shell swelling step) - (a water content in the core polymer particles (A) on which the first shell layer (B) has been formed before the shell swelling step) is 1 to 45%.