Method of Decreasing Acetaldehyde Level in a Molded Article
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United States of America Patent
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Issued Date -
Aug 27, 2009
app pub date -
Feb 21, 2008
filing date -
Feb 21, 2008
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
There is provided a method for decreasing acetaldehyde level in a molded article. The method of decreasing acetaldehyde content in a molded article to be produced comprises introducing into a feed throat of an injection unit a PET material to be plasticized, the PET material having been dried in a pre-treatment chamber ; and introducing into the feed throat an un-treated agent configured to increase moisture level of the PET material to be plasticized. In some embodiments of the present invention, the un-treated agent is also configured to provide additional lubrication to the plasticizing screw.
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