Patents by Inventor Sanjay Govindbhai Chauhan

Sanjay Govindbhai Chauhan 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).

  • Publication number: 20220298271
    Abstract: The present disclosure relates to a process for preparation of a catalyst with a polyolefin coat. The process of the present disclosure is simple, economical and requires 50% less reaction time to obtain a desired catalyst with polyolefin coat. The catalyst obtained by the process of the present disclosure is capable of reducing generation of polymer fines by at least 50%, which leads to improved plant operability and throughput.
    Type: Application
    Filed: May 5, 2021
    Publication date: September 22, 2022
    Applicant: RELIANCE INDUSTRIES LIMITED
    Inventors: Virendra Kumar GUPTA, Umesh MAKWANA, Bhavesh Kiritbhai DESAI, Priyanshu Bharatkumar VYAS, Sanket Kirankumar SHAH, Hiren Manojkumar BHAJIWALA, Sanjay Govindbhai CHAUHAN
  • Patent number: 10259896
    Abstract: The present disclosure relates to a single-pot multi step process for the preparation of a shape controlled pro-catalyst. The process comprises the steps of: i. reacting magnesium metal and at least one alkanol to obtain spheroidal magnesium alkoxide; ii. treating the spheroidal magnesium alkoxide with at least one transition metal tetrahalide, at least one organic modifier, and optionally, at least one in-organic modifier in the presence of at least one solvent to obtain a reaction mixture; iii. cooling, settling the reaction mixture and decanting the supernatant; iv. adding at least one transition metal tetrahalide, at least one solvent and optionally, at least one organic or inorganic modifier; and v. iterating steps (iii) and (iv) to obtain the shape controlled pro-catalyst.
    Type: Grant
    Filed: May 22, 2015
    Date of Patent: April 16, 2019
    Assignee: Reliance Industries Limited
    Inventors: Virendrakumar Gupta, Sanjay Govindbhai Chauhan, Hiren Manojkumar Bhajiwala, Shakil Shabbir Sayyed, Suketu Vakil
  • Patent number: 10113018
    Abstract: The present disclosure relates to a single-pot process for the preparation of a shape controlled pro-catalyst. The process comprises the steps of i. reacting at least one alkanol with magnesium metal using at least one modifier and optionally, at least one solvent resulting in evolution of hydrogen gas, increasing the evolution of the hydrogen gas in a controlled manner by increasing the temperature in a graded manner to 100° C. to obtain a mass, and ii. subjecting the mass to drying to obtain a free flowing procatalyst.
    Type: Grant
    Filed: May 22, 2015
    Date of Patent: October 30, 2018
    Assignee: Reliance Industries Limited
    Inventors: Virendrakumar Gupta, Sanjay Govindbhai Chauhan, Hiren Manojkumar Bhajiwala, Shakil Shabbir Sayyed, Suketu Vakil
  • Publication number: 20170088645
    Abstract: The present disclosure relates to a single-pot multi step process for the preparation of a shape controlled pro-catalyst. The process comprises the steps of: i. reacting magnesium metal and at least one alkanol to obtain spheroidal magnesium alkoxide; ii. treating the spheroidal magnesium alkoxide with at least one transition metal tetrahalide, at least one organic modifier, and optionally, at least one in-organic modifier in the presence of at least one solvent to obtain a reaction mixture; iii. cooling, settling the reaction mixture and decanting the supernatant; iv. adding at least one transition metal tetrahalide, at least one solvent and optionally, at least one organic or inorganic modifier; and v. iterating steps (iii) and (iv) to obtain the shape controlled pro-catalyst.
    Type: Application
    Filed: May 22, 2015
    Publication date: March 30, 2017
    Applicant: Reliance Industries Limited
    Inventors: Virendrakumar Gupta, Sanjay Govindbhai Chauhan, Hiren Manojkumar Bhajiwala, Shakil Shabbir Sayyed, Suketu Vakil
  • Publication number: 20170081438
    Abstract: The present disclosure relates to a single-pot process for the preparation of a shape controlled pro-catalyst. The process comprises the steps of i. reacting at least one alkanol with magnesium metal using at least one modifier and optionally, at least one solvent resulting in evolution of hydrogen gas, increasing the evolution of the hydrogen gas in a controlled manner by increasing the temperature in a graded manner to 100 ° C. to obtain a mass, and ii. subjecting the mass to drying to obtain a free flowing procatalyst.
    Type: Application
    Filed: May 22, 2015
    Publication date: March 23, 2017
    Applicant: Reliance Industries Limited
    Inventors: Virendrakumar Gupta, Sanjay Govindbhai Chauhan, Hiren Manojkumar Bhajiwala, Shakil Shabbir Sayyed, Suketu Vakil