High impact visbroken polymeric blends

A high melt flow rate, high impact, visbroken polymeric composition comprising a a high propylene content first polymeric component which is selected from the group consisting of block copolymers of propylene and ethylene, reactor-made intimate mixtures of polypropylene and randomly oriented copolymers of propylene and ethylene, and blends of polypropylene and randomly oriented copolymers of propylene and ethylene and a second polymeric component having a higher impact than said first component, and which is selected from the group consisting of low density polyethylene, ethylene-vinyl acetate copolymers, acrylate-modified polyethylenes, high density polyethylene, ethylene-propylene rubber (EPR or EPDM), and blends thereof, wherein the two components are first blended and then visbroken.