Patent ID: 7837899
Filing Date: 2010-11-23
Classification: C08L

Abstract:
1. A composition comprising a) a polyolefin, b) a nano-scale filler with one dimension <200 nm, and c) a gradient block copolymer dispersing agent prepared by controlled free radical polymerization (CFRP), wherein block copolymer is formed from the group of monomers consisting of maleic anhydride and octadecyl acrylate, wherein component (b) is present in an amount of from 0.1 to 40%, based on the weight of component (a) and component (c) is present in an amount of from 0.1 to 20%, based on the weight of component (a) and component c) has a polydispersity ranging from 1.05 to 2.0.