CELLULAR POLYESTER MADE OF POST-CONSUMER FLAKES AND THE USE OF PRODUCTS MADE THEREOF
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United States of America Patent
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Issued Date -
Nov 3, 2011
app pub date -
Apr 29, 2010
filing date -
Apr 29, 2010
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Abandoned
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Abstract
Manufacturing of polyester based expanded materials made mostly of pre-cleaned and compounded post-consumer polyester by increasing the intrinsic viscosity (IV) during an extrusion process is described. By careful selection of processing conditions and parameters, it is possible to obtain low density polyester foam material with good cellular structure and under stable processing conditions.
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