Patent ID: 7893159

Claim:
A film comprising: (a) from 30 wt % to less than 50 wt % of a propylene-alpha olefin copolymer having substantially isotactic propylene sequences and at least seventy weight percent (70 wt %) units derived from propylene and from ten to twenty-five weight percent (10-25 wt %) units derived from a C 2 , or a C 4 -C 10 alpha olefin, the propylene-alpha olefin exhibiting a heat of fusion by DSC analysis of from 0 Joule/gram to 37 Joules/gram and a melt flow rate of between 0.1 and 100 gram/10 minutes according to ASTM D-1238, Condition 230° C./2.16 kg; and (b) greater than 50 wt % to 70 wt % of a styrenic block copolymer, wherein the film exhibits the following: (1) 2% secant tensile modulus as measured using the geometry of ASTM D1708 at a 500%/minute strain rate of less than 17 MPa; (2) elongation at break of at least 900%; (3) tensile strength of at least 5 MPa as measured using the sample geometry of ASTM-D1708 and a 500%/minute strain rate; (4) a relative immediate set after an initial application of 400% strain of less than 2X, where X is the set exhibited by component (b) alone after the initial application of 400% strain.