Heat sealable films and articles

Details Heat sealable films and articles Heat sealable films and articles

1993-08-20

1995-10-31

Ryan, Patrick J.

Stock material or miscellaneous articles

Composite

Of addition polymer from unsaturated monomers

428 357, 428200, 428349, 4284111, 428515, 428516, 428523, 428913, B32B 2700

Patent

active

054628075

ABSTRACT:
The invention concerns a certain class of polymers, their production into films and applications for their use. These polymers have unique properties which make them particularly well suited for use in polymeric films. These films are very useful in applications requiring heat sealability, particularly those applications containing an ionomer film.
It has been discovered that polymers derived from metallocene catalyst systems surprisingly heat seal extremely well, as compared to polymer produced by conventional Ziegler-Natta catalysts, to a class of polymers known as ionomers.

REFERENCES:
patent: 4429079 (1984-01-01), Shibata et al.
patent: 5032463 (1991-07-01), Smith
patent: 5169728 (1992-12-01), Murphy et al.
patent: 5206075 (1993-04-01), Hodgson, Jr.
patent: 5244996 (1993-09-01), Kawasaki et al.
patent: 5298326 (1994-03-01), Norpoth et al.
patent: 5336746 (1994-08-01), Tsutsui et al.
patent: 5358792 (1994-10-01), Mehta et al.

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