Polyolefin composition with improved abrasion resistance
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United States of America Patent
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Nov 6, 2007
Grant Date -
Jan 27, 2005
app pub date -
Sep 15, 2003
filing date -
Sep 17, 2002
priority date (Note) -
Expired
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Abstract
A composition comprising: (I) 55 to 95% by weight of an heterophasic polyolefin composition comprising 8 to 50% by weight of a crystalline propylene polymer fraction and 50 to 92% by weight of an elastomeric propylene fraction; (II) 2 to 20% by weight of an oxidized polyethylene wax having an acid number of 5 to 35 mg KOHIg, a molecular weight Mn of 1,000 to 100,000, and a melting point comprised between 92.degree. C. and 140.degree. C.; and (III) 3 to 25% by weight of a styrene block copolymer.
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