Patent ID: 6896956

Claim:
An oriented, opaque, sealable and peelable film, comprising: (a) a non-sealable first outer layer comprising a thermoplastic polymer; (b) a cavitated first core layer comprising a thermoplastic polymer and a cavitating agent; (c) a second core layer comprising a peelable blend comprising (i) from 20-80 wt % of a polyethylene and (ii) from 80-20 wt % of a polyolefin incompatible with polyethylene (i) of second core layer (c), wherein second core layer (c) is positioned such that cavitated first core layer (b) is between first outer layer (a) and second core layer (c); and (d) a sealable second outer layer comprising a thermoplastic polymer, wherein sealable second outer layer (d) is positioned such that second core layer (c) is between cavitated first core layer (b) and sealable second outer layer (d).