Patent ID: 7863364

Claim:
A process for making an article for subjecting to dynamic loading comprising: (i) shaping a polymer-containing composition in the green state, the composition comprising: (a) a continuous phase of a polymeric component comprising at least 15 wt % based on the total weight of the polymer component of a propylene elastomer comprising from about 5 to about 35 wt % units derived from ethylene and having a heat of fusion of less than 70 J/g and an isotactic triad tacticity of 50 to 99% and optionally containing units derived from a diene, the polymeric component having a density of less than 0.9 g/cm 3 ; (b) a reinforcing filler component in an amount of from 20 to 120 phr based on the total weight of the polymer component; (c) a peroxide curative and (d) a fibrous reinforcement; and (ii) curing the shaped composition to a cure state as determined by ODR @ 170Â° C., 30 min. MH-ML of from 5 to 80 dNm.