Ultradur B4406G6Q717 BASF Corporation PBT is an UL V0 injection molding, PBT grade with 30% glass fiber reinforcement.

聚对苯二甲酸丁二醇酯，又名聚对苯二甲酸四次甲基酯。与PET一起统称为热塑性聚酯。用于电子电气，汽车和机械设备等。