Polyester-containing biaxially-oriented polypropylene films and

Details Polyester-containing biaxially-oriented polypropylene films and Polyester-containing biaxially-oriented polypropylene films and

1995-06-07

1997-06-10

Thurlow, Jeffery R.

Stock material or miscellaneous articles

Hollow or container type article

Polymer or resin containing

15624414, 15624417, 26417128, 26417314, 26417315, 26417319, 2642893, 2642902, 264300, 428 359, 428 3691, 428447, 428483, 428451, 428517, B29C 5514, B32B 702

Patent

active

056373660

ABSTRACT:
Polyester-containing multilayer biaxially-oriented polypropylene films are provided. According to the invention, a two- or three-layer polyester-containing cap layer is bonded to a monoaxially oriented polypropylene core, followed by orientation of the resulting composite in a direction transverse to the direction of orientation of the core layer. At least one tie layer is interposed between the core and the polyester. Advantageously, the polyester contains silicone fluid as a processing aid.

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patent: 5353927 (1994-10-01), Stupar et al.
patent: 5353985 (1994-10-01), Nageli et al.
patent: 5380587 (1995-01-01), Musclow et al.
patent: 5387449 (1995-02-01), Kunz et al.

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