Process for producing a blow-molded container
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United States of America Patent
Stats
-
Apr 24, 1990
Grant Date -
N/A
app pub date -
Apr 21, 1988
filing date -
Sep 4, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A process for the production of a laminate of thermoplastic material with a multi-layer wall by co-extrusion provides that added to the material for forming at least one of the layers of the laminate is a substance which makes it possible for that layer to be rendered recognizable in the laminate by the action of physical and/or chemical means. The added substance may be a fluorescing, phosphorescing or luminescing substance so that the layer containing that substance can be rendered visible in the wall of the laminate by the action of UV radiation of appropriate wavelength.
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