Heat shrinkable laminate film
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United States of America Patent
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Jun 7, 1994
Grant Date -
N/A
app pub date -
Feb 8, 1993
filing date -
Mar 13, 1992
priority date (Note) -
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status (Latency Note)
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Abstract
A heat shrinkable laminate film is disclosed which includes a core layer formed of an ethylene-vinyl alcohol copolymer, two intermediate layers provided on opposite surfaces of the core layer and each formed of a copolymer selected from (a) copolymers of an unsaturated carboxylic acid or a derivative thereof and propylene and (b) copolymers of an unsaturated carboxylic acid or a derivative thereof and an alpha-olefin-propylene copolymer containing not greater than 10% by weight of alpha-olefin comonomer, and two outer layers provided on respective surfaces of the intermediate layers and each formed of an ethylene polymer.
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