Interpolymer compositions of ethylene, α-olefin and nonconjugated polyene, methods of making the same, and foam and articles prepared from the same

A foam formed from a composition comprising at least the following:

• A) from “greater than zero” to “less than 100” phr (based on sum weight of Components A and B) of an interpolymer comprising, in polymerized form, ethylene, an α-olefin and a nonconjugated polyene, and wherein the interpolymer comprises less than, or equal to, 5 weight percent of the polyene, based on the total amount of polymerized monomers, and wherein the interpolymer has a molecular weight distribution (Mw/Mn) less than 3;
• B) from “less than 100” to “greater than zero” phr (based on sum weight of Components A and B) of an interpolymer comprising, in polymerized form, ethylene, an α-olefin and a nonconjugated polyene, and wherein the interpolymer comprises greater than, or equal to, 5 weight percent of the polyene, based on the total amount of polymerized monomer;
• and
• wherein the total polyene content is less than 7 weight percent (based on the total amount of polymerized monomers in the interpolymers of Components A and B), and
• wherein the weight ratio of the polyenes in the interpolymers of Components A and B (polyene(A)/polyene(B)) is less than, or equal to, 0.8.