Coextrusion of liquid crystal polymers and thermoplastic polymers to form a container
AssigneeFoster-Miller, Inc.
InventorsAndrew C. Harvey, Richard W. Lusignea
Life of this patent
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Abstract
A flat and nearly mechanically isotropic polymer film or sheet, or a tube, can be formed by laminating two or more films, preferably by coextrusion of a liquid crystal polymer film and a thermoplastic polymer film. A liquid crystal polymer layer may be combined with one or more thermoplastic polymer layer in various arrangements. The liquid crystal, and possibly the thermoplastic as well, may have a controlled molecular orientation. The film may also be formed by passing a polymer through a set of two or three tubular rotors which are concentric and have facing surfaces which define inner and outer annular polymer flow channels.
Claims10
A multilayer container prepared from one or more liquid crystal polymers (LCPs) and one or more thermoplastic polymers (TPs) wherein at least one LCP layer has a controlled molecular orientation.
Dependencies are inferred from the claim text.