公开(公告)号：US20190389988A1

公开(公告)日：2019-12-26

申请号：US16449257

申请日：2019-06-21

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Xuan Ye ,  Jonathan J. Schaefer ,  Timothy M. Boller ,  Christopher S. Breiner ,  Chi-I Kuo ,  Kevin A. Stevens ,  Logan E. Shephard ,  Eyerusalem H. Mamo ,  Evan J. Morris ,  Shamah Lloyd

IPC: C08F210/16 ,  C08L23/06 ,  C08F4/6192 ,  C08F4/622 ,  C08F2/34 ,  C08K3/36

Abstract: 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.

公开(公告)号：US11492428B2

公开(公告)日：2022-11-08

申请号：US16449257

申请日：2019-06-21

Applicant: ExxonMobil Chemical Patents Inc.

Inventor： Xuan Ye ,  Jonathan J. Schaefer ,  Timothy M. Boller ,  Christopher S. Breiner ,  Chi-I Kuo ,  Kevin A. Stevens ,  Logan E. Shephard ,  Eyerusalem H. Mamo ,  Evan J. Morris ,  Shamah Lloyd

IPC: C08F210/16 ,  C08F4/659 ,  C08L23/06 ,  C08F2/34 ,  C08F4/6192 ,  C08F4/622 ,  C08K3/36

Abstract: 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.