Processes for producing high propylene content PEDM having low glass transition temperatures using tetrahydroindacenyl catalyst systems

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United States of America Patent

PATENT NO 10894841
APP PUB NO 20190284318A1
SERIAL NO

16356772

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Abstract

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The present disclosure provides methods for producing an olefin polymer by contacting a C3-C40 olefin, ethylene and a diene with a catalyst system including an activator and a metallocene catalyst compound comprising a substituted or unsubstituted indacenyl group and obtaining a C3-C40 olefin-ethylene-diene terpolymer typically comprising from 30 to 55 mol % ethylene, from 69.09 to 45 mol % C3 to C40 comonomer, and from 0.01 to 7 mol % diene wherein the Tg of the terpolymer is −28° C. or less. Preferably, a propylene-ethylene-ethylidene norbornene is obtained.

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Patent Owner(s)

  • EXXONMOBIL CHEMICAL PATENTS INC.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bai, Zhifeng Houston, US 26 23
Barsan, Florin Pearland, US 14 24
Canich, Jo Ann M Houston, US 146 3713
Eckert, Chase A Houston, US 6 5
Hagadorn, John R Houston, US 120 907
Mattler, Sarah J League City, US 20 81
Shah, Rhutesh K Katy, US 23 104

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