Moisture and gas permeable non-porous ionomeric films

Details Moisture and gas permeable non-porous ionomeric films Moisture and gas permeable non-porous ionomeric films

2006-05-16

2006-05-16

Bissett, Melanie (Department: 1711)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

C524S397000, C524S398000, C428S516000, C428S500000

Reexamination Certificate

active

07045566

ABSTRACT:
Moisture and gas permeable ionomeric films are described. The films described herein are obtained from blends of ionomers with an organic acid salt in the amount of at least about 5 wt %, and have MVTR greater than films obtained from conventional ionomers. Particularly preferred are the potassium salts of stearic, oleic, isostearic, and isooleic acids. Films comprising a liquid-absorbent ionomer film layer and an impermeable layer are provided. The films are suitable for preparation of tubular casings and shrinkbags, in particular, casings for smoked foodstuffs.

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