Process for producing molded propylene polymer product containing fibrous inorganic filler
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United States of America Patent
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Feb 26, 2013
Grant Date -
Mar 31, 2011
app pub date -
Dec 9, 2010
filing date -
Oct 3, 2008
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Abstract
A molded propylene polymer product improved in flexural properties and/or impact resistance is prepared by a process comprising the steps of blending fibrous inorganic filler-containing pellets with a propylene polymer-containing matrix resin composition, in which the pellets comprises 35-80 wt. % of a fibrous inorganic filler, 1-45 wt. % of an olefin polymer, 5-45 wt. % of an elastomer, and 0.3-10.0 wt. % of a specific lubricant; kneading the blended product under molten condition; and molding the kneaded product.
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