| 主权项 |
1. A method of forming a composition, comprising:
introducing to an extruder a propylene-based polymer in an amount from 50 wt % to 99 wt % based on the weight of the composition, the propylene-based polymer containing from 5 wt % to 40 wt % of ethylene and/or C4-C20 α-olefins derived units and having a heat of fusion, as determined by DSC, of from 0.5 J/g to 80 J/g; introducing to the extruder a co-agent selected from multifunctional acrylates, multifunctional methacrylates, functionalized polybutadiene resins, functionalized cyanurate, allyl isocyanurate, and combinations thereof, wherein the co-agent is introduced at a position within the extruder where the temperature is from 23° C. to 125° C; wherein the co-agent is introduced using a pump selected from a progressive cavity pump, a diaphragm pump, and a peristaltic pump; and forming the composition in the extruder. |
