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1. (WO2001034389) METALLIZED MULTI-LAYER FILM

Pub. No.:    WO/2001/034389    International Application No.:    PCT/US2000/030092
Publication Date: Fri May 18 01:59:59 CEST 2001 International Filing Date: Thu Nov 02 00:59:59 CET 2000
IPC: B32B 27/32
C08L 23/10
C08L 23/12
C08L 51/06
Applicants: MOBIL OIL CORPORATION
Inventors: KONG, Dan-Cheng
SEXTON, Donald, F.
Title: METALLIZED MULTI-LAYER FILM
Abstract:
A metallized biaxially oriented film has at least one polypropylene layer and a metallized skin layer. This skin layer is formed from a blend of polymers including syndiotactic polypropylene. The polymer which is blended with the syndiotactic polypropylene may be a butylene-propylene copolymer or a graft copolymer of propylene and maleic anhydride. The film may include a separate non-metallized biaxially oriented film laminated to the metallized biaxially oriented film. The metal layer provides a barrier to oxygen and water vapor. The metallized film can be processed through package forming machines without damage to the metal barrier layer.