| 摘要 |
A composition comprising a polymer selected from a polyolefin, a polyamide or mixtures thereof, in admixture with an acrylic polymer additive, wherein: the extensional viscosity of the composition is greater than the extensional viscosity of the same composition not containing the acrylic polymer additive; or, the shear viscosity of the composition is greater than the shear viscosity of the same composition not containing the acrylic polymer additive; or, both the extensional viscosity and the shear viscosity of the composition is greater than the extensional viscosity and shear viscosity, respectively, of the same composition not containing the acrylic polymer additive, when measured at an identical applied specific shear rate in the range of 3000 S<SUP>-1 </SUP>to 500 S<SUP>-1 </SUP>under substantially the same conditions.
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