Exxonmobil Chemical Patents Inc.

Exxonmobil Chemicals Patents, Inc.

Virendra K Tiwari

Liang Li

Eric Paul Jourdain

Jian Shen

Saifudin M Abubakar

Jun Tong

Milind Balwant Joshi

Saurabh C Sharma

Pradeep Pandurang Patki

Kaushik Das

Nilesh C Shah

In an embodiment, a slit film tape composition includes a propylene-based elastomer comprising 1-16 wt % ethylene based on a total weight of the propylene-based elastomer, the propylene-based elastomer having a melt flow rate (MFR) of 1-50 g/10 min; a polypropylene comprising 10-100 mol % propylene based on a total weight of the polypropylene, the polypropylene having a MFR of 2-35 g/10 min; and a filler. In another embodiment, a slit film tape composition includes a propylene-based elastomer comprising from 5-30 wt % ethylene based on a total weight of the propylene-based elastomer, the propylene-based elastomer having a MFR of 35-60 g/10 min; a polypropylene comprising 10-100 mol % propylene based on a total weight of the polypropylene, the polypropylene having a MFR of 2-35 g/10 min; and a filler.

Slit film tape compositions

Provided are compositions comprising: (a) an ethylene-propylene-diene terpolymer having a Mooney viscosity [ML(1+4) 125&#xb0; C.] of about 25 to about 300 and an ethylene content of at least about 60 wt % of the ethylene-propylene-diene terpolymer; and (b) a polyolefin elastomer. The presence of the polyolefin elastomer improves rheological properties of the composition to an extent that does not significantly compromise other properties, such as tensile strength at break and compression set.

Compositions comprising EPDM and a polyolefin elastomer, preparation and use thereof

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Karnataka, India

Virendra K Tiwari