Patents by Inventor Md Safatul Islam

Md Safatul Islam has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 12091380
    Abstract: The present disclosure provides processes and apparatus for producing poly alpha olefins. In at least one embodiment, a process to produce a poly alpha olefin includes introducing a first olefin monomer to a first catalyst and an activator in a first reactor to form a first reactor effluent comprising olefin dimers and olefin timers. The process includes heating the first reactor effluent to form an isomerized product and introducing the isomerized product to a filtration unit to form a filtration effluent. The process may include introducing the filtration effluent to a first distillation unit to form a first distillation effluent. The process may include introducing the first distillation effluent to a second distillation unit to form a second distillation effluent. The process includes introducing the first distillation effluent and/or the second distillation effluent to a second catalyst in a second reactor to form a second reactor effluent comprising the olefin timers.
    Type: Grant
    Filed: June 3, 2020
    Date of Patent: September 17, 2024
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Monica D. Lotz, Jennifer L. Rapp, Patrick C. Chen, Md Safatul Islam
  • Publication number: 20220289644
    Abstract: The present disclosure provides processes and apparatus for producing poly alpha olefins. In at least one embodiment, a process to produce a poly alpha olefin includes introducing a first olefin monomer to a first catalyst and an activator in a first reactor to form a first reactor effluent comprising olefin dimers and olefin timers. The process includes heating the first reactor effluent to form an isomerized product and introducing the isomerized product to a filtration unit to form a filtration effluent. The process may include introducing the filtration effluent to a first distillation unit to form a first distillation effluent. The process may include introducing the first distillation effluent to a second distillation unit to form a second distillation effluent. The process includes introducing the first distillation effluent and/or the second distillation effluent to a second catalyst in a second reactor to form a second reactor effluent comprising the olefin timers.
    Type: Application
    Filed: June 3, 2020
    Publication date: September 15, 2022
    Inventors: Monica D. Lotz, Jennifer L. Rapp, Patrick C. Chen, Md Safatul Islam
  • Patent number: 10968290
    Abstract: Unsaturated and hydrogenated polyalpha-olefin products can be made with a high selectivity toward vinylidenes and tri-substituted vinylenes combined, a high selectivity toward vinylidenes, and a low selectivity toward 1,2-di-substituted vinylenes by using a catalyst system comprising a metallocene compound having the following structure in the polymerization reaction:
    Type: Grant
    Filed: March 15, 2018
    Date of Patent: April 6, 2021
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Donna J. Crowther, Patrick C. Chen, Jacqueline A. Lovell, Md Safatul Islam
  • Patent number: 10654766
    Abstract: This disclosure relates to a continuous process for making a dimer from a terminal olefin in the presence of a catalyst system comprising a metallocene compound and alumoxane.
    Type: Grant
    Filed: May 24, 2018
    Date of Patent: May 19, 2020
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Patrick C. Chen, Delanyo K. Seshie, Md Safatul Islam
  • Patent number: 10351488
    Abstract: Unsaturated polyalpha-olefin (uPAO) materials comprising a mixture of vinylidene olefins, 1,2-di-substituted vinylene olefins, and tri-substituted vinylene olefins. The unsaturated PAO material can be made from alpha-olefin monomer(s) in the presence of a metallocene-compound-based catalyst system. The unsaturated PAO material can be used as intermediate material for making PAO materials having functional groups.
    Type: Grant
    Filed: May 11, 2017
    Date of Patent: July 16, 2019
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Md Safatul Islam, Patrick C. Chen, Delanyo K. Seshie, Sarah J. Mattler
  • Publication number: 20190062234
    Abstract: This disclosure relates to a continuous process for making a dimer from a terminal olefin in the presence of a catalyst system comprising a metallocene compound and alumoxane.
    Type: Application
    Filed: May 24, 2018
    Publication date: February 28, 2019
    Inventors: Patrick C. Chen, Delanyo K. Seshie, Md Safatul Islam
  • Publication number: 20180282443
    Abstract: Unsaturated and hydrogenated polyalpha-olefin products can be made with a high selectivity toward vinylidenes and tri-substituted vinylenes combined, a high selectivity toward vinylidenes, and a low selectivity toward 1,2-di-substituted vinylenes by using a catalyst system comprising a metallocene compound having the following structure in the polymerization reaction:
    Type: Application
    Filed: March 15, 2018
    Publication date: October 4, 2018
    Inventors: Donna J. Crowther, Patrick C. Chen, Jacqueline A. Lovell, Md Safatul Islam
  • Publication number: 20180037521
    Abstract: Unsaturated polyalpha-olefin (uPAO) materials comprising a mixture of vinylidene olefins, 1,2-di-substituted vinylene olefins, and tri-substituted vinylene olefins. The unsaturated PAO material can be made from alpha-olefin monomer(s) in the presence of a metallocene-compound-based catalyst system. The unsaturated PAO material can be used as intermediate material for making PAO materials having functional groups.
    Type: Application
    Filed: May 11, 2017
    Publication date: February 8, 2018
    Inventors: Md Safatul Islam, Patrick C. Chen, Delanyo K. Seshie, Sarah J. Mattler