A COMPOSITION COMPRISING A GRAFT COPOLYMER PRODUCT AND UNBOUND MALEIC ANHYDRIDE MOIETIES AND A PROCESS OF PRODUCING THE SAME

摘要

A composition comprising: (a) a graft copolymer product comprising (i) backbone comprising polypropylene or derived from polypropylene, and (ii) bound maleic anhydride moieties; said graft copolymer characterized as either having a low molecular weight, a viscosity of from 200 to 400 cps at 190° C, and an SAP of no more than 150, or having a high molecular weight, a viscosity of from 200 to 2000 cps at 190° C, and an SAP of no more than 80; and (b) unbound maleic anhydride moieties, wherein said bound maleic anhydride moieties are present in a concentration of at least 50% by weight of the total bound and unbound maleic anhydride present in the compatibilizing agent, and wherein said composition has a weight ratio of backbone to maleic anhydride of 5:1 to 40:1.