EXPANDABLE STYRENE POLYMER PARTICLE

摘要

PURPOSE:To avoid blocking during pre-expansion of the title particles, improve fusion of the particles with one another during molding, and prevent separation of a coating agent during handling the particles before the pre-expansion by coating the surface of the particle with specific compds. CONSTITUTION:The surface of 100 pts.wt. the title particle is coated with 0.01-0.3 pts.wt. fatty acid ester of glycerol and 0.01-0.5 pt.wt. compd. consisting of zinc stearate and/or an inorg. compd.