(METH)ACRYLIC CROSSLINKED FINE PARTICLE AND MANUFACTURING METHOD THEREFOR

摘要

PROBLEM TO BE SOLVED: To provide a (meth)acrylic crosslinked fine particle capable of simply reducing residual crosslinked monomer regardless of a used amount of a polymerization initiator.SOLUTION: A (meth)acrylic crosslinked fine particle contains a surfactant and celluloses and the crosslinked monomer is 170 ppm (mass basis) or less. The celluloses preferably have viscosity of 50 to 10,000 mPa s at a temperature of 20°C when its solution with 2 mass% concentration is prepared. The celluloses include alkyl substituted cellulose, (poly)hydroxyalkyl substituted cellulose and carboxyalkyl substituted cellulose.