Foam plates with lowered heat conductivity

摘要

Foam boards with a density of 20-200 g/l and cross-section NOTLESS 50 cm<2> are based on styrene copolymers containing 0.1-10 wt.% carbon particles and flameproof. The carbon particles comprise graphite with a particle size of 1-100 mu m and the foam has a flameproof finish to fire test B 2 (to DIN 4102). Also claimed is a method of making the boards.