Process for forming polyolefins

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United States of America Patent

PATENT NO 9850330
SERIAL NO

15289597

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Processes of forming polyolefins are described herein. One or more specific embodiments of the processes generally include introducing olefin monomer selected from C2-C3 olefins into a first reaction zone under first polymerization conditions to form a first polyolefin; withdrawing a transfer effluent from the first reaction zone, the transfer effluent including first polyolefin and unreacted olefin monomer; introducing the transfer effluent, a comonomer selected from C4-C8 olefins, and additional olefin monomer to a second reaction zone under second polymerization conditions to form a second reactor product; maintaining an essentially constant comonomer:olefin monomer ratio in the second reaction zone; and withdrawing at least a portion of the second reactor product, wherein the second reactor product includes a bimodal polyolefin.

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Patent Owner(s)

Patent OwnerAddress
CHEVRON PHILLIPS CHEMICAL COMPANY LPP O BOX 4910 THE WOODLANDS TX 77387-4910

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kufeld, Scott E Houston, US 87 1251
Mutchler, Joel A Porter, US 58 369

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