Abstract: The present invention provides polypropylene made by dispersing at least one, cracking-resistant polymer therein for controlled rheology treatment to yield a polypropylene polymer with a high melt flow rate and good molding characteristics.

Abstract: A UV disinfecting device for flowing fluids, having a frame (1) and a certain number of lamp units (3) with UV lamps, whereby the lamp units each have at least one electrical connection and are held by the frame (1) substantially parallel and spaced from each other. For securing the lamp units (3), clamps (10, 14) are provided, which are particularly favorable for fluid flow. Preferably, each lamp is encased in a respective casing tube (6) having one or more elastomeric end stoppers (7) and the clamps are metallic leaf springs which engage the stoppers. The electrical leads pass through the stoppers. This facilitates easy replacement of failing lamps.