Monolayer polymeric film and method of fabrication

Details Monolayer polymeric film and method of fabrication Monolayer polymeric film and method of fabrication

1997-10-10

2000-10-24

Watkins, III, William P.

Stock material or miscellaneous articles

Surface property or characteristic of web, sheet or block

428141, 428520, 428346, 2642105, 2642884, 264423, 264469, 26417719, 26417723, 2642356, B32B 3126

Patent

active

061364398

ABSTRACT:
A monolayer printable polymeric film and method for making the film. The film is formed by mixing a structural material, such as polypropylene or polyethylene, with a printable material, such as vinyl-acetate or methacrylate, to form a unitary mixture prior to processing. The unitary mixture is extruded and heated so as to cause the printable material to bloom to the surface of the unitary mixture. Stretching of the mixture at temperatures greater than permissible for multi-layered films formed of separate structural and printable materials heat sets and relaxes or stress relieves the film that is formed. The result is a monolayer film that is stiffer and that lays much flatter than the prior multi-layered films that were prone to curling. The mixture is preferably heated to 270.degree. F. or greater during the stretching process.

REFERENCES:
patent: 4578414 (1986-03-01), Sawyer et al.
patent: 4835218 (1989-05-01), Yoshimura et al.
patent: 5120888 (1992-06-01), Nohr et al.
patent: 5135800 (1992-08-01), Nagaoka et al.
patent: 5151309 (1992-09-01), Dollinger
patent: 5206273 (1993-04-01), Chen et al.
patent: 5232966 (1993-08-01), Chen et al.
patent: 5242650 (1993-09-01), Rackovan et al.
patent: 5286525 (1994-02-01), Chen et al.
patent: 5427727 (1995-06-01), Tung
patent: 5435963 (1995-07-01), Rackovan et al.
patent: 5451283 (1995-09-01), Josephy et al.
patent: 5496635 (1996-03-01), Francis et al.
patent: 5520760 (1996-05-01), Freedman

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