EXPANDABLE POLYSTYRENE COMPOSITION

摘要

Expandable polystyrene composition comprising: (1) 100 parts by weight of a polymer of styrene preferably having a weight-average molecular mass Mw ranging from 150 000 to 450 000 daltons, (2) from 2 to 20 parts by weight of at least one blowing agent, and (3) from 0.05 to less than 1.0 part by weight of a carbon black having a BET specific surface area, measured according to the method ASTM D 6556, ranging from 550 to 1600 m<SUP>2</SUP>/g is disclosed.