High barrier propylene compositions and their use in packaging a

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Polymers from only ethylenic monomers or processes of...

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526351, 428500, 428523, 428910, C08F 1006, B32B 2732

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active

057959463

ABSTRACT:
Film is provided wherein, at least one layer comprises polymer, a molecular majority of which is derived from propylene, having water vapor transmission rate of less than or equal to about (-7.4428 g.times..mu.m/m.sup.2 .times.day.times.% polymer crystallinity) (% polymer crystallinity)+627.32 g.times..mu.m/m.sup.2 .times.day, or (-0.0189 g.times.mil/100 in.sup.2 .times.day.times.% polymer crystallinity) (% polymer crystallity)+1.593 g.times.mil/100 in.sup.2 .times.day.

REFERENCES:
patent: 5169924 (1992-12-01), Asanuma et al.
patent: 5468440 (1995-11-01), McAlpin et al.
patent: 5534595 (1996-07-01), Asanuma et al.

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