IP Verse

Smokable Polymeric Casing

Patent No. EP1559323 (titled "Smokable Polymeric Casing") was filed by Viskase Companies on Jan 25, 2005. The application was issued on May 7, 2014.

Patent Summary

This seamless, tubular, biaxially stretched, heat-shrinkable thermoplastic film for food packaging comprises 15–45 wt.% polyvinyl alcohol (PVA) resin, 55–85 wt.% aliphatic polyamide, and 3–5 wt.% antiblock agent. The PVA resin must have a hydrolysis degree of 70–100 mol-%, less than 2 wt.% water (DIN 51777/Karl-Fischer), and less than 2 wt.% methanol. The PVA resin includes a polymer (A) consisting of 15.0–99.9 wt.% structural units of formula (1) (R1 = H or methyl), 0.0–50.0 wt.% units of formula (2) (R2 = C1-C6 alkyl), and 0.0–50.0 wt.% units of formula (3) (R3-R6 = organic rests, 1–500 g/mole). The resulting film is designed to be smokable, providing porosity for flavor/color penetration while maintaining oxygen barrier properties.

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KALLEFeb 5, 2015PLATE

Dossier Documents

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  • Date

    Description

EP1559323

VISKASE COMPANIES
Application Number
EP05001395A
Filing Date
Jan 25, 2005
Status
Revoked
May 17, 2021
Publication Date
May 7, 2014
External Links
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