The subject invention discloses a thermoplastic composition which is
comprised of a blend of a thermoplastic polyolefin resin and a modified
elastomer, wherein said thermoplastic polyolefin resin selected at least
from the group of polyethylene, isotactic polypropylene, syndiotactic
polypropylene, polypropylene impact copolymers containing about 1-7% by
weight of ethylene, butene, hexene, or octene, polyolefin copolymers such
as ethylene-butene, hexene, or octene, polybutene, reactor grade modified
polypropylene, metallocene polypropylene, oxypolypropylene, wherein said
modified elastomer is comprised of a conjugated diene selected from
1,3-butadiene and isoprene, wherein said modified elastomer is highly
branched, wherein said modified elastomer is characterized by having a G'
and G" frequency crossover of no more than 4 radians/s at 100.degree. C.,
wherein the thermoplastic polyolefin is present in an amount which is
within the range of about 5 parts by weight to about 95 parts by weight,
and wherein the modified elastomer is present in an amount which is within
the range of 5 parts by weight to about 95 parts by weight, based upon the
total weight of the thermoplastic composition.