Flint Hills Resources, LP

Flint Hills Resources Polymers, LLC

Pierre Donaldson

Thoi H Ho

Lixin Sun

Billy R Bodiford

Gerald Cummings

Mark Wolverton

George Allen

Steve Hooker

Bill R Bodiford

Blended compositions that can include one or more thermoplastic polymers and one or more organic fillers and methods for making and using same. The blended composition can have a Notched Izod Impact Strength of at least 20 J/m to about 600 J/m, measured according to ASTM D256-10, and a melt index of about 1 g/10 min to about 100 g/10 min, measured according to ASTM D1238-13, procedure B. The thermoplastic copolymer can include a blend of a polypropylene homopolymer and a copolymer of propylene and a comonomer. The comonomer can include ethylene, a Cto Colefin, or any mixture thereof. The copolymer of propylene and the comonomer can include about 0.5 wt % to about 40 wt % of the comonomer. The blended composition can include about 5 wt % to about 30 wt % of the organic filler based on the combined weight of the thermoplastic copolymer and the organic filler.

Blended compositions, methods for making same, and articles made therefrom

Provided herein are propylene polymers which are capable of being used as thermoplastic polyolefins just as they emerge from the reactor system described, without further compounding of components which substantially modify the physical properties of the polymers, as such compounding is required of polymers of the prior art. Polymers according to the invention unexpectedly possess both low temperature ductility and high flexural modulus, which properties were related in inverse proportion to one another in the polymers of the prior art.

High modulus, high ductility polyolefins

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Longview, TX, United States of America

Pierre Donaldson