Production of molded fibrous basic magnesium sulfate filler-containing olefin polymer composition products
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United States of America Patent
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Jul 31, 2012
Grant Date -
Sep 22, 2011
app pub date -
Mar 14, 2011
filing date -
Mar 16, 2010
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Abstract
A molded fibrous basic magnesium sulfate filler-containing olefin polymer composition product is produced by a process comprising the steps of preparing a fibrous basic magnesium sulfate tiller-containing master batch composition which comprises an olefin polymer, a fibrous basic magnesium sulfate filler, an elastomer, a specific lubricant and a specific filler-surface treating agent; mixing the master batch composition and a propylene polymer-containing diluent resin; kneading the resulting mixture in a molten state; and molding the molten mixture to give the molded product.
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