Patent ID: 8871868

Claim:
A composition comprising: a matrix phase comprising 50 to 95 weight % of a polypropylene polymer comprising from 0 to 6 mole % of units derived from one or more alpha-olefins selected from the group consisting of ethylene, 1-butene, 1-pentene, 1-hexene, 1-heptene, 1-octene, 1-nonene, 1-decene, 1-undecene and 1-dodecene; and a dispersed copolymer phase comprising from 5 to 50 weight % of the total composition, the dispersed copolymer phase comprising: from 40 to 90 weight % of a first copolymer comprising 35 to 85 weight % of ethylene and 15 to 65 weight % of a first rubber comonomer comprising one or more C 3 -C 12 α-olefin, and from 10 to 60 weight % of a second copolymer comprising 65 to 95 weight % of ethylene and 5 to 35 weight % of a second rubber comonomer comprising one or more C 3 -C 12 α-olefin, wherein the weight percent of ethylene in the second copolymer is greater than the weight percent of ethylene in the first copolymer.