BASF和Dow公学两家公司已向德国政府表示,他们在德国销售的聚苯乙烯硬泡沫板有80%将不用卤素发泡剂生产;余下的20%用卤素发泡的聚苯乙烯板到2000年也将停止在德国出售。这两家公司表示,他们计划用二氧化碳作发泡剂替代品生产聚苯乙烯泡沫板。 德国政府立法规定,从2000年起禁止 The two BASF and Dow companies have stated to the German government that 80% of the polystyrene rigid foam boards sold in Germany will not be produced with halogen foaming agents; the remaining 20% ​​use halogen-blown polystyrene boards. In 2000 will also stop selling in Germany. The two companies stated that they plan to use carbon dioxide as a substitute for foaming agent to produce polystyrene foam boards. German government stipulates that it will be banned from 2000