The present invention relates to a self-extinguishing polymeric composition comprising: a) a stabilizing polymeric composition containing i) from 80% to 99.5% by weight of one or more vinylaromatic polymers compatible with each other; and ii) from 0.5% to 20% by weight of at least one block copolymer containing: 1) at least one vinylaromatic polymer block compatible N with (i) and constituting a weight quantity equal to or higher than 15% by weight with respect to the whole block copolymer, and 2) at least one vinyl copolymer block containing epoxy groups so that there is from 0.7% to 19% by weight of oxirane oxygen calculated on the total of block copolymer; and b) from 0.03 phr by weight to 10 phr by weight, calculated on the basis of component (a), of at least one halogenated flame retardant.
                            本发明涉及一种自熄灭聚合物组合物,该组合物包括: a) 一种稳定聚合物组合物,该组合物含有 i) 一种或多种彼此相容的
乙烯基芳香族聚合物,其重量占 80% 至 99.5%;和 ii) 至少一种嵌段共聚物,其重量占 0.5%至 20%(重量百分比)的至少一种嵌段共聚物,该嵌段共聚物含有:1) 至少一种与(i)相容的
乙烯基芳香族聚合物嵌段,其重量相当于或高于整个嵌段共聚物重量的 15%,以及 2) 至少一种含有环氧基团的
乙烯基共聚物嵌段,从而使 0.b) 至少一种卤代阻燃剂,以组分(a)为基础计算,重量百分比为 0.03 至 10。