Exxonmobil Chemical Patents Inc.

Yinjie Zhang

Saifudin M Abubakar

Xin Chen

Yi Ping Ni

Willy J J Leysen

Yanan Gong

Thomas Cugnon

Jieyu Jin

Yijin Zhang

Tie Y Ye

Disclosed are films including polypropylene impact copolymers for tarpaulin applications which can provide a combination of desired properties.

Films and methods of making the same

The present invention is related to a composition with about 80 wt % to about 95 wt % of a polymer blend, wherein the polymer blend comprises (a) about 3 wt % to about 25 wt % of a first propylene-based elastomer based on the polymer blend, and (b) about 75 wt % to about 97 wt % of a second propylene-based elastomer based on the polymer blend; and about 5 wt % to about 20 wt % of an ethylene-based polymer; wherein the first propylene-based elastomer and the second propylene-based elastomer each comprise the following: propylene and from about 2 to about 25 wt % units derived from one or more Cor C-Calpha-olefins; triad tacticity greater than about 90% and a heat of fusion less than about 75 J; and wherein the first propylene-based elastomer is different from the second propylene-based elastomer.

Propylene-based polymer compositions with improved crystallization

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Shanghai, China

Yinjie Zhang