Dual barrier laminate process
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United States of America Patent
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-
Nov 19, 1991
Grant Date -
N/A
app pub date -
Apr 11, 1990
filing date -
Apr 11, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The present invention provides a novel process for the coextrusion of a laminate containing more than a single barrier layer. The process overcomes the interfacial instability associated with thinning and spreading a composite stream containing a barrier layer of EVOH. Furthermore, the process prevents migration of EVOH particles from regrind.
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