HOLLOW POLYMER PARTICLE, COLORED HOLLOW POLYMER PARTICLE AND THEIR PRODUCTION METHODS

摘要

Disclosed is a hollow polymer particle which is composed of a shell wall having a thickness of 5-80 nm and mainly made of a copolymer which is obtained by polymerizing a monomer group (I) containing a radically polymerizable water-soluble monomer (A) and a radically polymerizable water-insoluble monomer (B). Also disclosed is a method for producing a hollow polymer particle wherein a monomer group (I) containing a radically polymerizable water-soluble monomer (A) and a radically polymerizable water-insoluble monomer (B) is radically polymerized in an aqueous medium by using a water-soluble polymerization initiator.