AT363384T

Thick shrink film having high oxygen transmission rate

Abstract

A multilayer film comprising: (A) a first layer which is a first outer film layer and which serves as a heat seal layer, the first layer comprising a first polymer, the first layer having a thickness of 2 to 20 percent the total thickness of the multilayer film; (I) ethylene / butyl acrylate: and (B) at least one second layer which serves as a layer of high oxygen transmission, the at least a second layer essentially of at least one member selected from the group consisting being composed (ii) homogeneous ethylene / alpha-olefin having a density less than 0 92 g / cc; (Iii) ethylene / methyl acrylate having a content of methyl acrylate mer from 20 to 24 mole percent; (Iv) ethylene / vinyl acetate having a content of vinyl acetate mer 10 to 30 mole percent; (V) block copolymer styrene butadiene; and at least one second layer has a thickness from 80 to 98 percent of the total thickness of the multilayer film; characterized in that the total thickness of the multilayer film is at least 0, (1, 6 mils) 038 mm and the film has an oxygen transmission rate of at least 10,000 cc / m2 / 24 STP.

Term

No projected expiry on record.

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15 members in 9 offices

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Priority claims
DocumentOfficeKindDate
37978403United States of AmericaA

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US2004175518A1United States of AmericaA1
AU2004217906A1AustraliaA1
CA2517891A1CanadaA1
WO2004078475A1World Intellectual Property Organization (WIPO)A1
EP1599337A1European Patent Office (EPO)A1
EP1599337B1European Patent Office (EPO)B1
AT363384TThis recordAustriaT
DE602004006723D1GermanyD1
ES2286619T3SpainT3
DE602004006723T2GermanyT2
US7338708B2United States of AmericaB2
NZ542133ANew ZealandA
AU2004217906B2AustraliaB2
AU2004217906B9AustraliaB9
CA2517891CCanadaC