Thermoplastic polymer compositions and their production and use

摘要: A thermoplastic polymer composition incorporating at least about 50 wt % polypropylene, 20 of an elastomer such as EP rubber and 4 plastomer. The plastomer is preferably a single site catalyzed ethylene based copolymer having density less than 0.915. By adjusting the amount in composition, considerable control secured over post-mold shrinkage components produced through injection molding operations utilizing composition. can be prepared reactor blend or melt blend. particularly useful producing large bumpers exterior trim fascia for automobiles.