Importance

Loading Importance Indicators...

Abstract

A propylene copolymer composition includes a propylene copolymer of propylene from 70 to 95 wt % and at least two α-olefin comonomers from 3.0 to 25 wt %. The α-olefin comonomer with a lower molar mass may be included from 0.3 to 10 wt %. The propylene copolymer composition may have a melt flow rate (MFR) in a range from 5.4 to 250 g/10 min, a polydispersity index (PI) in a range from 1.0 to 3.7, and an analytical temperature rising elution fractionation full width at half maximum (ATREF FWHM) in a range from 1.0 to 15.4° C. The method includes reacting propylene and at least two α-olefin comonomers in one or more vertically-stirred gas phase reactors, extruding with additives, and optionally visbreaking to produce a propylene copolymer composition.

Loading the Abstract Image...

First Claim