Patent ID: 8389634

Claim:
A thermoplastic blend composition consisting of: A) from 75 to 99 weight percent, based on the total weight of the thermoplastic blend composition, of a thermoplastic polyolefin composition, which consists of the following: (a) from 50 to 83.5 weight percent of polypropylene, HDPE, or a mixture thereof; and (b) from 16.5 to 50 weight percent of a first ethylene/α-olefin interpolymer having a density from 0.870 to less than, or equal to, 0.903 g/cm 3 ; and B) from 1 to 25 weight percent, based on the total weight of the thermoplastic blend composition, of an extender, consisting of a second ethylene/α-olefin interpolymer, other than component A)(b), and having the following properties: (a) a density of at least 0.855, and less than, or equal to, 0.8900 g/cm 3 and (b) a Brookfield Viscosity, at 350° F., from 3000 cP to 17,000 cP, and wherein the second ethylene/α-olefin interpolymer is a copolymer; and at least one additive selected from the group consisting of fillers, antioxidants, cling additives, antiblock additives, colorants, pigments, waxes, nucleating agents, extender oils, flame retardants, tackifiers, and combinations thereof, and wherein the melt index of said thermoplastic blend composition is increased by at least 5 percent, relative to that of said thermoplastic polyolefin composition.