Method for producing injection molded multilayer articles
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United States of America Patent
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Apr 13, 1993
Issued Date -
N/A
app pub date -
Apr 11, 1991
filing date -
Dec 26, 1989
priority date (Note) -
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status (Latency Note)
Importance
Abstract
A method of making a multilayer plastic article by forming a multilayer stream of diverse thermoplastic materials and injection molding the multilayer stream directly into the article. The multilayer stream can be formed by coextrusion of the materials or by coextrusion followed by layer multiplication in one or more interfacial surface generators/static mixers. The coextruded stream, or a multiplied stream from the one or more ISG's, can also be divided into substreams and the substreams thereafter recombined prior to being injection molded so that the layers in one such substream are angularly oriented with respect to the layers in another substream.
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Cited Art Landscape
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