Process for forming a plastic article from a plurality of...

Details Process for forming a plastic article from a plurality of... Process for forming a plastic article from a plurality of...

B - Operations, Transporting

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B29C 51/14 (2006.01) B29C 43/16 (2006.01) B29C 51/02 (2006.01) B29C 67/00 (2006.01) B29C 69/00 (2006.01)

Patent

CA 1275031

ABSTRACT A process for forming a plastic article in which at least one or more layers are individually heated to temperatures below the melting point of the individual layers. Two or more such layers are immedi- ately stacked while retaining the peripheral portion of the layers. The stacked layers are then immediately formed into a plastic article which is then allowed to cool. Alternatively, after stacking of the layers, the stacked layers are immediately forged into a preform in a heated and lubricated mold and are then immediately thermoformed into a plastic article, which is then allowed to cool. The layers may be diverse (i.e. material, shape, molecular weight, additives, etc.) or similar and stacked so as to provide a layered angular orientation. 32,985-F

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