ORGANIC POLYMER FINE PARTICLES

摘要

The purpose of the present invention is to provide organic polymer fine particles which are highly suppressed in falling off from a film in cases where the organic polymer fine particles are used in an anti-blocking agent for the film. Organic polymer fine particles according to the present invention are formed of a (meth)acrylic polymer that is crosslinked by a bifunctional crosslinkable monomer. The organic polymer fine particles are characterized in that: the structural unit based on the bifunctional crosslinkable monomer is from 5% by mass to 35% by mass (inclusive) in the crosslinked (meth)acrylic polymer; the precipitation start time is 16 seconds or more; the Al content and the sulfur atom content as determined by high-frequency inductively coupled plasma (ICP) atomic emission spectrometry are 1 ppm or less and 300 ppm or less, respectively; and a hindered phenol antioxidant or a component derived from a hindered phenol antioxidant is contained therein.