EXPANDABLE VINYL AROMATIC POLYMERS WITH ENHANCED HEAT INSULATION AND PROCESS FOR THE PREPARATION THEREOF

摘要

Expandable vinyl aromatic polymers comprising: a) a matrix obtained by polymerizing 50-100% by weight of one or more vinyl aromatic monomers and 0-50% by weight of at least one co-polymerizable monomer; b) 1-10% by weight calculated with respect to polymer (a), of an expanding agent englobed in the polymeric matrix; c) 0.01-20% by weight, calculated with respect to polymer (a), of a filler including carbon black, electrically conductive, with a surface area, measured according to ASTM D-3037/89, ranging from 5 to 200 m2/g.