Patent ID: 8802774
Filing Date: 2014-08-12
Classification: C08L

Abstract:
1. A formulated composition comprising: a) polypropylene; b) a compatibilizer; and, c) an elastomer wherein the composition exhibits an Izod strength in kJ/m wherein the compatibilizer comprises a block composite wherein the block composite comprises a soft copolymer, a hard polymer and a diblock copolymer having a soft segment and a hard segment, wherein the hard segment of the block copolymer is the same composition as the hard polymer in the block composite and the soft segment of the block copolymer is the same composition as the soft copolymer of the block composite; and wherein the block composite has an Mw/Mn of 1.7 to 3.5, the blocks of the diblock copolymers are joined end-to-end and the hard polymer comprises propylene units present in an amount greater than 90 mol percent.