Propylene-based impact copolymers

A propylene-based impact copolymer (ICP) comprising:

• a polypropylene homopolymer having an Mw/Mn within a range of from 3.0 to 5.0;
• and
• within a range of from 10 wt % to 45 wt % of single-reactor propylene copolymer based on the weight of the ICP, wherein the propylene copolymer comprises from 20 wt % to 44 wt % ethylene, 1-butene, 1-hexene and/or 1-octene derived units and from 80 to 56 wt % propylene-derived units based on the weight of the propylene copolymer, the propylene copolymer having a Mz/Mw of less than 3.0;
• the propylene-based impact copolymer having a melt flow rate (230° C./2.16 kg) within a range of from 10 g/10 min to 50 g/10 min and an elongation at break of greater than 60% and
• wherein the polypropylene homopolymer forms a continuous phase and the propylene copolymer forms rubber domains having an average size within a range of from 0.40 μm to 0.90 μm.

A thermoplastic polyolefin composition comprising a propylene-based impact copolymer (ICP) comprising a polypropylene homopolymer and within a range of from 10 wt % to 45 wt % of propylene copolymer based on the weight of the ICP,

• wherein the propylene copolymer comprises from 20 wt % to 44 wt % ethylene, 1-butene, 1-hexene and/or 1-octene derived units and from 80 to 56 wt % propylene-derived units based on the weight of the propylene copolymer,
• the propylene-based impact copolymer having a melt flow rate (230° C./2.16 kg) within a range of from 10 g/10 min to 50 g/10 min and an elongation at break of greater than 60%;
• and the composition comprising
• within a range of from 5 wt % to 30 wt % of an ethylene-based plastomer, within the range from 6 to 30 wt % of filler, and within a range of from 20 wt % to 80 wt % of the ICP, wherein the weight percentages are based on the total weight of the composition;
• and
• wherein the polypropylene homopolymer forms a continuous phase and the propylene copolymer forms rubber domains having an average size within a range of from 0.40 μm to 0.90 μm.

A thermoplastic polyolefin composition comprising a propylene-based impact copolymer (ICP), comprising a polypropylene homopolymer and within a range of from 10 wt % to 45 wt % of propylene copolymer based on the weight of the ICP;

• wherein the propylene copolymer comprises from 20 wt % to 44 wt % ethylene, 1-butene, 1-hexene and/or 1-octene derived units and from 80 to 56 wt % propylene-derived units based on the weight of the propylene copolymer
• the propylene-based impact copolymer having a melt flow rate (230° C./2.16 kg) within a range of from 10 g/10 min to 50 g/10 min and an elongation at break of greater than 60%;
• and the composition comprising
• within a range of from 2 wt % to 25 wt % of an ethylene-based plastomer, within a range from 0.5 to 6 wt % of filler, and within a range of from 70 wt % to 98 wt % of the ICP, wherein the weight percentages are based on the total weight of the composition.