Coextruded multilayer sheet and tough sleeve label made therefrom
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United States of America Patent
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Apr 29, 1986
Grant Date -
N/A
app pub date -
Jan 14, 1985
filing date -
Jan 14, 1985
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A coextruded multilayer heat shrunk plastic sleeve label having a tough skin layer and a brittle polystyrene foam layer, the skin layer being extruded from a blend of low density polyethylene, a block copolymer of butadiene and styrene as a compatibility agent and optionally, small amounts of polystyrene. The amount of the block copolymer used is sufficient to provide limited adhesion between the skin and foam layers to maximize the toughness of the total label structure. The sleeve label can be sealed by ultrasonic, hot air and heat sealing.
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