Multistage method and apparatus for continuously forming a composite article
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United States of America Patent
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Issued Date -
Jan 18, 2007
app pub date -
Jul 14, 2006
filing date -
Jul 15, 2005
priority date (Note) -
Abandoned
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Abstract
There is disclosed a multistage molding apparatus and method for continuously forming a composite article. The apparatus comprises a first stage for forming a skin, a second stage for applying a structural foam to the skin as the skin is being cured to form the composite article and a third stage for curing the composite article. The method comprises the steps of impregnating a skin forming material with a first resin at a first stage, curing the skin forming material to form a skin, while applying a foam to the impregnated skin forming material before the impregnated skin forming material is fully cured in a second stage, and curing the foamed skin to form the composite article at a third stage. There is also disclosed a composite article comprising a skin layer bonded to a foam layer.
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