High-performance filtration membranes


BASF polysulfones are used to create synthetic semipermeable membranes that filter out dissolved molecules based on molecular weight. This membrane technology is used in dialysis filters to remove wastes and excess fluids from the body and clean a patient's blood.


BASF Ultrason®, for example, is offered in various molecular weights. It is naturally transparent and has a high-use temperature capability (160° C - 220° C), with excellent chemical and hydrolytic resistance.