Patents by Inventor Bhasker Bantu
Bhasker Bantu 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).
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Patent number: 11180630Abstract: The present invention provides a metal salt of malonic acid derivative compound having chemical formula (I) as an ?-nucleating agent and process for preparing the same. The present invention also provides a polymer additive and thermoplastic composition comprising the metal salt of malonic acid derivative compound having chemical formula (I).Type: GrantFiled: December 31, 2018Date of Patent: November 23, 2021Assignee: INDIAN OIL CORPORATION LIMITEDInventors: Jatinder Singh Dhaliwal, Vishal Goel, Bhasker Bantu, Sameeksha Raizada, Shiva Naresh, Vimal Kakkarakkal Kottiyath, Raja Poddar, Gurpreet Singh Kapur
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Patent number: 10611865Abstract: The present invention provides a solid organomagnesium precursor having formula {Mg(OR?)X}.a{MgX2}.b{Mg(OR?)2}.c{R?OH}, wherein R? is selected from a hydrocarbon group, X is selected from a halide group, and a:b:c is in range of 0.01-0.5:0.01-0.5:0.01-5 and process for preparing the same, said process comprising contacting a magnesium source with a solvating agent, an organohalide and an alcohol to obtain the solid organomagnesium precursor. The present invention also provides a process for preparing a catalyst system using the organomagnesium precursor and its use thereof for polymerization of olefins.Type: GrantFiled: August 20, 2018Date of Patent: April 7, 2020Assignee: INDIAN OIL CORPORATION LIMITEDInventors: Sukhdeep Kaur, Gurmeet Singh, Bhasker Bantu, Naresh Kumar, Gurpreet Singh Kapur, Shashi Kant, Biswajit Basu, Ravinder Kumar Malhotra
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Publication number: 20190256683Abstract: The present invention provides a metal salt of malonic acid derivative compound having chemical formula (I) as an ?-nucleating agent and process for preparing the same. The present invention also provides a polymer additive and thermoplastic composition comprising the metal salt of malonic acid derivative compound having chemical formula (I).Type: ApplicationFiled: December 31, 2018Publication date: August 22, 2019Applicant: INDIAN OIL CORPORATION LIMITEDInventors: Jatinder Singh DHALIWAL, Vishal GOEL, Bhasker BANTU, Sameeksha RAIZADA, Shiva NARESH, Vimal Kakkarakkal KOTTIYATH, Raja PODDAR, Gurpreet Singh KAPUR
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Publication number: 20180355082Abstract: The present invention provides a solid organomagnesium precursor having formula {Mg(OR?)X}.a{MgX2}.b{Mg(OR?)2}.c{R?OH}, wherein R? is selected from a hydrocarbon group, X is selected from a halide group, and a:b:c is in range of 0.01-0.5:0.01-0.5:0.01-5 and process for preparing the same, said process comprising contacting a magnesium source with a solvating agent, an organohalide and an alcohol to obtain the solid organomagnesium precursor. The present invention also provides a process for preparing a catalyst system using the organomagnesium precursor and its use thereof for polymerization of olefins.Type: ApplicationFiled: August 20, 2018Publication date: December 13, 2018Applicant: INDIAN OIL CORPORATION LIMITEDInventors: Sukhdeep KAUR, Gurmeet SINGH, Bhasker BANTU, Naresh KUMAR, Gurpreet Singh KAPUR, Shashi KANT, Biswajit BASU, Ravinder Kumar MALHOTRA
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Patent number: 10100136Abstract: The present invention provides a solid organomagnesium precursor having formula {Mg(OR?)X}.a{MgX2}.b{Mg(OR?)2}.c{R?OH}, wherein R? is selected from a hydrocarbon group, X is selected from a halide group, and a:b:c is in range of 0.01-0.5:0.01-0.5:0.01-5 and process for preparing the same, said process comprising contacting a magnesium source with a solvating agent, an organohalide and an alcohol to obtain the solid organomagnesium precursor. The present invention also provides a process for preparing a catalyst system using the organomagnesium precursor and its use thereof for polymerization of olefins.Type: GrantFiled: December 6, 2016Date of Patent: October 16, 2018Assignee: INDIAN OIL CORPORATION LIMITEDInventors: Sukhdeep Kaur, Gurmeet Singh, Bhasker Bantu, Naresh Kumar, Gurpreet Singh Kapur, Shashi Kant, Biswajit Basu, Ravinder Kumar Malhotra
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Patent number: 10094399Abstract: The present invention relates to a process for preparing ultra-high molecular weight polyalphaolefin. The process consists of polymerizing alphaolefin monomers using the catalyst system consisting of supported Ziegler-Natta catalyst without internal donor in presence of co-catalyst based on alkyl aluminums. The resulting ultra-high molecular weight polyalphaolefins having intrinsic viscosity ?10 dL/g are used as drag reducing polymers for increasing throughput in the pipelines by reducing frictional resistance in turbulent flow.Type: GrantFiled: August 10, 2016Date of Patent: October 9, 2018Assignee: INDIAN OIL CORPORATION LIMITEDInventors: Sukhdeep Kaur, Mohasin Momin, Mahendra Singh Negi, Gurmeet Singh, Bhasker Bantu, Naresh Kumar, Gurpreet Singh Kapur, Shashi Kant
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Patent number: 9914789Abstract: A catalyst composition for use as precursor for Ziegler-Natta catalyst system, said catalyst composition comprising a combination of magnesium moiety, titanium moiety and an internal donor containing at least one 1,2-phenylenedioate compound of structure (A). Also, the present invention provides a process for preparing the aforesaid catalyst composition. Further, the present invention provides a Ziegler-Natta catalyst system incorporating the aforesaid catalyst composition and a method for polymerizing and/or copolymerizing olefins using the Ziegler-Natta catalyst system.Type: GrantFiled: August 10, 2016Date of Patent: March 13, 2018Assignee: INDIAN OIL CORPORATION LIMITEDInventors: Bhasker Bantu, Gurmeet Singh, Sukhdeep Kaur, Naresh Kumar, Gurpreet Singh Kapur, Shashi Kant, Ravinder Kumar Malhotra
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Patent number: 9896523Abstract: The present invention describes a process of preparing a catalyst for olefin polymerization comprising: (i) treating a magnesium metal with an organohalide along with an internal donor to obtain a reaction mixture having solid component (A); (ii) treating the reaction mixture having solid component (A) with an acyl halide to obtain a reaction mixture having solid component (B); and (iii) treating the reaction mixture having solid component (B) of step (ii) with a transition metal compound to obtain the catalyst. The present invention also relates to a process for preparation of a catalyst system from said catalyst and preparation of a polyolefins from the catalyst system.Type: GrantFiled: June 17, 2016Date of Patent: February 20, 2018Assignee: INDIAN OIL CORPORATION LIMITEDInventors: Gurmeet Singh, Naresh Kumar, Sukhdeep Kaur, Bhasker Bantu, Gurpreet Singh Kapur, Shashikant
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Patent number: 9890229Abstract: The present invention provides a liquid organomagnesium precursor having formula {Mg(OR?)X}.a{MgX2}.b{Mg(OR?)2}.c{R?OH}, wherein R? is selected from a hydrocarbon group, X is selected from a halide group, and a:b:c is in range of 0.1-99.8:0.1-99.8:0.1-99.8, and a process for preparing the same. The said process comprises contacting a magnesium source with an organohalide and alcohol in a solvent to form the liquid organomagnesium precursor. The present invention also provides a catalyst system using the organomagnesium precursor and its use thereof for polymerization of olefins. An illustrative example of the claimed process to make the organomagnesium precursor is: At 25° C., magnesium (powder or turnings) is added to organohalide, followed by alcohol in toluene. After heating to 90° C. and keeping there for 6 h the solution became viscous.Type: GrantFiled: September 24, 2013Date of Patent: February 13, 2018Assignee: INDIAN OIL CORPORATION LIMITEDInventors: Gurmeet Singh, Bhasker Bantu, Sukhdeep Kaur, Naresh Kumar, Gurpreet Singh Kapur, Shashi Kant, Biswajit Basu, Ravinder Kumar Malhotra
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Patent number: 9873752Abstract: The present invention describes a process for preparation of catalyst component comprising contacting magnesium based precursor along with an internal donor based on phenylene dioates with an acyl halides in a solvent to obtain a solid precatalyst component; and contacting the solid precatalyst component with transition metal compound to obtain the catalyst component. The present invention also relates to a process for preparation of a catalyst system from said catalyst component and preparation of a polyolefins having free flowing characteristics with bulk densities (BD) of at least about 0.3 g/cc from the catalyst system.Type: GrantFiled: January 26, 2016Date of Patent: January 23, 2018Assignee: INDIAN OIL CORPORATION LTD.Inventors: Gurmeet Singh, Bhasker Bantu, Sukhdeep Kaur, Naresh Kumar, Mahender Singh Negi, Mohasin Momin, Rashmi Rani, Gurpreet Singh Kapur, Shashikant
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Patent number: 9758602Abstract: The present invention describes a process for preparing catalyst for the polymerization of ethylene consisting essentially of the steps of (i) contacting a magnesium based precursor with a solvent; and (ii) then contacting the magnesium based precursor in the solvent with a transition metal compound to obtain the catalyst, wherein step (ii) is single contact step. The present invention also relates to a process for preparation of a catalyst system and a process of polymerizing and/or copolymerizing of ethylene to obtain a polyethylene using the catalyst.Type: GrantFiled: February 23, 2016Date of Patent: September 12, 2017Assignee: INDIAN OIL CORPORATION LIMITEDInventors: Gurmeet Singh, Naresh Kumar, Bhasker Bantu, Sukhdeep Kaur, Rashmi Rani, Mohasin Momin, Gurpreet Singh Kapur, Shashikant, Biswajit Basu, Ravinder Kumar Malhotra
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Publication number: 20170152330Abstract: The present invention relates to a process for preparing ultra-high molecular weight polyalphaolefin. The process consists of polymerizing alphaolefin monomers using the catalyst system consisting of supported Ziegler-Natta catalyst without internal donor in presence of co-catalyst based on alkyl aluminums. The resulting ultra-high molecular weight polyalphaolefins having intrinsic viscosity ?10 dL/g are used as drag reducing polymers for increasing throughput in the pipelines by reducing frictional resistance in turbulent flow.Type: ApplicationFiled: August 10, 2016Publication date: June 1, 2017Inventors: Sukhdeep KAUR, Mohasin MOMIN, Mahendra Singh NEGI, Gurmeet SINGH, Bhasker BANTU, Naresh KUMAR, Gurpreet Singh KAPUR, Shashi KANT
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Patent number: 9644050Abstract: The present invention describes a process for controlling particle size of a catalyst composition. The process comprising the steps of contacting an internal donor with an organomagnesium precursor solution to form an intermediate solution and treating the intermediate solution with a transition metal compound to form a catalyst composition, wherein particle size of the catalyst composition is controlled by controlling a contact time of the internal donor with the precursor solution during formation of the intermediate solution.Type: GrantFiled: July 8, 2015Date of Patent: May 9, 2017Assignee: Indian Oil Corporation LimitedInventors: Sukhdeep Kaur, Bhasker Bantu, Gurmeet Singh, Naresh Kumar, Shashikant, Gurpreet Singh Kapur, Biswajit Basu, Ravinder Kumar Malhotra
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Publication number: 20170081440Abstract: The present invention provides a solid organomagnesium precursor having formula {Mg(OR?)X}.a{MgX2}.b{Mg(OR?)2}.c{R?OH}, wherein R? is selected from a hydrocarbon group, X is selected from a halide group, and a:b:c is in range of 0.01-0.5:0.01-0.5:0.01-5 and process for preparing the same, said process comprising contacting a magnesium source with a solvating agent, an organohalide and an alcohol to obtain the solid organomagnesium precursor. The present invention also provides a process for preparing a catalyst system using the organomagnesium precursor and its use thereof for polymerization of olefins.Type: ApplicationFiled: December 6, 2016Publication date: March 23, 2017Applicant: INDIAN OIL CORPORATION LIMITEDInventors: Sukhdeep KAUR, Gurmeet SINGH, Bhasker BANTU, Naresh KUMAR, Gurpreet Singh KAPUR, Shashi KANT, Biswajit BASU, Ravinder Kumar MALHOTRA
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Patent number: 9593172Abstract: A catalyst composition for use as precursor for Ziegler-Natta catalyst system, said catalyst composition comprising a combination of magnesium moiety, titanium moiety and an internal donor containing at least one 1,2-phenylenedioate compound of structure (A). Also, the present invention provides a process for preparing the aforesaid catalyst composition. Further, the present invention provides a Ziegler-Natta catalyst system incorporating the aforesaid catalyst composition and a method for polymerizing and/or copolymerizing olefins using the Ziegler-Natta catalyst system.Type: GrantFiled: July 12, 2013Date of Patent: March 14, 2017Assignee: INDIAN OIL CORPORATION LIMITEDInventors: Bhasker Bantu, Gurmeet Singh, Sukhdeep Kaur, Naresh Kumar, Gurpreet Singh Kapur, Shashi Kant, Ravinder Kumar Malhotra
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Patent number: 9587041Abstract: The present invention provides a solid organomagnesium precursor having formula {Mg(OR?)X}.a{MgX2}.b{Mg(OR?)2}.c{R?OH}, wherein R? is selected from a hydrocarbon group, X is selected from a halide group, and a:b:c is in range of 0.01-0.5:0.01-0.5:0.01-5 and process for preparing the same, said process comprising contacting a magnesium source with a solvating agent, an organohalide and an alcohol to obtain the solid organomagnesium precursor. The present invention also provides a process for preparing a catalyst system using the organomagnesium precursor and its use thereof for polymerization of olefins. The organomagnesium precursor is prepared as follows: At 0° C., magnesium in diethyl ether is reacted with the organohalide. After all magnesium has reacted, the calculated amount of alcohol was added and after the completion of addition, the ether was evaporated and a solid compound obtained.Type: GrantFiled: September 24, 2013Date of Patent: March 7, 2017Assignee: INDIAN OIL CORPORATION LIMITEDInventors: Sukhdeep Kaur, Gurmeet Singh, Bhasker Bantu, Naresh Kumar, Gurpreet Singh Kapur, Shashi Kant, Biswajit Basu, Ravinder Kumar Malhotra
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Publication number: 20160376384Abstract: The present invention describes a process of preparing a catalyst for olefin polymerization comprising: (i) treating a magnesium metal with an organohalide along with an internal donor to obtain a reaction mixture having solid component (A); (ii) treating the reaction mixture having solid component (A) with an acyl halide to obtain a reaction mixture having solid component (B); and (iii) treating the reaction mixture having solid component (B) of step (ii) with a transition metal compound to obtain the catalyst. The present invention also relates to a process for preparation of a catalyst system from said catalyst and preparation of a polyolefins from the catalyst system.Type: ApplicationFiled: June 17, 2016Publication date: December 29, 2016Inventors: Gurmeet SINGH, Naresh KUMAR, Sukhdeep KAUR, Bhasker BANTU, Gurpreet Singh KAPUR, SHASHIKANT
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Publication number: 20160347880Abstract: A catalyst composition for use as precursor for Ziegler-Natta catalyst system, said catalyst composition comprising a combination of magnesium moiety, titanium moiety and an internal donor containing at least one 1,2-phenylenedioate compound of structure (A). Also, the present invention provides a process for preparing the aforesaid catalyst composition. Further, the present invention provides a Ziegler-Natta catalyst system incorporating the aforesaid catalyst composition and a method for polymerizing and/or copolymerizing olefins using the Ziegler-Natta catalyst system.Type: ApplicationFiled: August 10, 2016Publication date: December 1, 2016Applicant: INDIAN OIL CORPORATION LIMITEDInventors: Bhasker BANTU, Gurmeet SINGH, Sukhdeep KAUR, Naresh KUMAR, Gurpreet Singh KAPUR, Shashi KANT, Ravinder Kumar MALHOTRA
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Publication number: 20160347882Abstract: The present invention describes a process for preparing spherical particles of a catalyst composition, the process comprising contacting an organomagnesium precursor with a transition metal compound in presence of an internal donor to obtain a reaction mixture. Thereafter heating the reaction mixture from a first pre-determined temperature to a second pre-determined temperature and then heating the reaction mixture from second pre-determined temperature to a third pre-determined temperature to obtain spherical particles of the catalyst composition. The present invention also relates to a process for preparing of a spherical catalyst system from said spherical catalyst composition and preparing a spherical polyolefins having free flowing characteristics with bulk densities (BD) of at least about 0.4 g/cc from the spherical catalyst system.Type: ApplicationFiled: November 5, 2015Publication date: December 1, 2016Inventors: Gurmeet SINGH, Sukhdeep KAUR, Bhasker BANTU, Naresh KUMAR, SHASHIKANT, Gurpreet Singh KAPUR, Biswajit BASU, Ravinder Kumar MALHOTRA
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Publication number: 20160244537Abstract: The present invention describes a process for preparing catalyst for the polymerization of ethylene consisting essentially of the steps of (i) contacting a magnesium based precursor with a solvent; and (ii) then contacting the magnesium based precursor in the solvent with a transition metal compound to obtain the catalyst, wherein step (ii) is single contact step. The present invention also relates to a process for preparation of a catalyst system and a process of polymerizing and/or copolymerizing of ethylene to obtain a polyethylene using the catalyst.Type: ApplicationFiled: February 23, 2016Publication date: August 25, 2016Inventors: Gurmeet SINGH, Naresh KUMAR, Bhasker BANTU, Sukhdeep KAUR, Rashmi RANI, Mohasin MOMIN, Gurpreet Singh KAPUR, Shashikant, Biswajit BASU, Ravinder Kumar MALHOTRA