Exxonmobil Chemical Patents Inc.

Univation Technologies, LLC

Shamah Lloyd

Chi-I Kuo

Richard B Pannell

Timothy Marlow Boller

Xuan Ye

Kevin A Stevens

Evan J Morris

Christopher S Breiner

Logan E Shephard

Eyerusalem H Mamo

Jonathan J Schaefer

Methods to produce heterogeneous polyethylene granules, the method including: contacting first olefin monomers and second olefin monomers with a catalyst system in a single reaction zone to produce heterogeneous polyethylene granules and recovering the heterogeneous polyethylene granules; wherein the catalyst system includes a product of a combination including: one or more catalysts having a Group 3 through Group 12 metal atom or lanthanide metal atom; at least one activator; and optionally, one or more support material compositions; and wherein the heterogeneous polyethylene granules include a product of a combination of: a first portion comprising a first polyethylene including the first olefin monomers and the second olefin monomers; a second portion including a second polyethylene including the first monomers and the second monomers; and wherein the first polyethylene has a higher second monomer weight percent than the second polyethylene, are provided.

Methods to produce heterogeneous polyethylene granules

Supported catalyst compositions, useful in olefin polymerization, and having improved flow properties are disclosed. The catalyst compositions may be characterized by low macro pore volume and high bulk density. Methods for preparing the catalyst compositions are also disclosed.

Supported catalyst compositions having improved flow properties and preparation thereof

Growing community of inventors

Houston, TX, United States of America

Shamah Lloyd