PELLETS OF LIGHTLY VIS-BROKEN POLYPROPYLENE
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United States of America Patent
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Feb 23, 2017
app pub date -
Aug 21, 2015
filing date -
Aug 21, 2015
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Abstract
A process including vis-breaking of polypropylene in the presence of 3,6,9-triethyl-3,6,9-trimethyl-1,4,7-triperoxonane to obtain vis-broken polypropylene is provided. The vis-broken polypropylene may be pelletized to obtain pellets. A ratio of a melt flow rate (MI2) of the pellets to a melt flow rate (MI2) of the polypropylene prior to the vis-breaking may be greater than 1:1 and at most 4:1. The pellets may be used to form articles.
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