Patent ID: 9145498
Filing Date: 2015-09-29
Classification: B32B,C08K,C08L,D06M,D06N,E04D

Abstract:
1. A multi-layer structure, comprising: a layer having a formulation comprising: i) an olefin block copolymer comprising an ethylene content of at least 50 mole percent of the whole polymer, the olefin block copolymer having a polydispersity from 1.7 to 3.5, a density of from 0.850 g/cc to 0.925 g/cc, and a melt index from 0.1 g/10 min to 30 g/10 (according to ASTM D-1238 at 190° C./2.16 kg), the olefin block copolymer being an ethylene/octene block copolymer and being present in an amount from 10 wt % to 25 wt % based on the total weight of the formulation; ii) a propylene/α-olefin copolymer comprising between 60 and less than 100 weight percent units derived from propylene and between greater than 0 and 40 weight percent units derived from at least one of ethylene and a C iii) a halogen-free flame-retardant, a polymer to flame retardant ratio being less than 0.35, and the halogen-free flame retardant being present in an amount of greater than 60 wt % based on total weight of formulation.