Plasticized hetero-phase polyolefin blends

This invention relates to hetero-phase polyolefin compositions comprising: a) 30 to 99.7 wt% of a polypropylene-based TPO comprising at least 50 wt% propylene and at least 10 wt% ethylene, and b) 0.1 to 20 wt% of one or more non-functionalized plasticizer, and c) 0.2 to 50 wt% of one or more filler;...

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Bibliographic Details
Main Authors CHAPMAN BRYAN R, VALENTAGE JEFFREY, HILL JARED M, LUNDMARK BRUCE R
Format Patent
LanguageChinese
English
Published 14.03.2012
Subjects
CHEMISTRY
COMPOSITIONS BASED THEREON
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
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Summary:This invention relates to hetero-phase polyolefin compositions comprising: a) 30 to 99.7 wt% of a polypropylene-based TPO comprising at least 50 wt% propylene and at least 10 wt% ethylene, and b) 0.1 to 20 wt% of one or more non-functionalized plasticizer, and c) 0.2 to 50 wt% of one or more filler; based upon the weight of the composition, and having: i) an MFR of 5 dg/min or more, and ii) a flexural modulus of 500 MPa or more, and iii) a notched Charpy impact strength at -30 DEG C of 1 kJ/m or more or a notched Izod impact strength at -18 DEG C of 50 J/m or more. These compositions are especially useful in applications such as automotive parts that demand both high stiffness and high impact toughness, as well as good processibility during fabrication.
Bibliography:Application Number: CN2007833057