Patents by Inventor Prashant Samant

Prashant Samant 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: 10519123
    Abstract: A process for preparing an aromatic N-glycidylamine comprising a step of heating a mixture of an amine having at least one aromatic aminohydrogen atom with at least 0.7 equivalent of epichlorohydrin per aminohydrogen equivalent of the amine in presence of a catalyst dissolved in an inert organic solvent, at a pressure in a range of 200 mbar to 600 mbar; and adding a base to the mixture at a pressure in a range of 200 mbar to 600 mbar to facilitate dehydrochlorination of product of the previous step to obtain the aromatic N-glycidylamine.
    Type: Grant
    Filed: February 3, 2017
    Date of Patent: December 31, 2019
    Assignee: Grasim Industries Limited
    Inventors: Ashok Kumar Singh, Prashant Samant, Alif Lalani, Mukesh Kathalewar, Vishnu More
  • Patent number: 10217564
    Abstract: A capacitor including: a first electrode; a second electrode; and a dielectric material situated between the first electrode and the second electrode, where the dielectric material is a self-assembled block-copolymer film with a periodic morphology. The self-assembled block-copolymer film may have a lamellar morphology that is horizontally oriented into layers of copolymer parallel to the first electrode and second electrode.
    Type: Grant
    Filed: November 30, 2016
    Date of Patent: February 26, 2019
    Assignee: The University of Akron
    Inventors: Alamgir Karim, Saumil Prashant Samant
  • Publication number: 20190031632
    Abstract: A process for preparing an aromatic N-glycidylamine comprising a step of heating a mixture of an amine having at least one aromatic aminohydrogen atom with at least 0.7 equivalent of epichlorohydrin per aminohydrogen equivalent of the amine in presence of a catalyst dissolved in an inert organic solvent, at a pressure in a range of 200 mbar to 600 mbar; and adding a base to the mixture at a pressure in a range of 200 mbar to 600 mbar to facilitate dehydrochlorination of product of the previous step to obtain the aromatic N-glycidylamine.
    Type: Application
    Filed: February 3, 2017
    Publication date: January 31, 2019
    Inventors: Ashok Kumar Singh, Prashant Samant, Alif Lalani, Mukesh Kathalewar, Vishnu More
  • Patent number: 10023548
    Abstract: The invention relates to an improved process for making monomeric triglycidyl compounds, wherein the triglycidyl compounds include N, O-triglycidyl compounds containing at least one primary aromatic amine and one phenolic functional group attached to the same or a different aromatic ring. The methods of the present invention result in the production of N, O-triglycidyl compounds, such as those of formula I and II. The improved process is energy efficient, environment friendly, and results in increased yields of product. The methods of the present invention can be performed in the absence of protic organic co-solvents during the reaction of an epihalohydrin with an aminophenol, such as compounds of formula II and IV, which provides an intermediate halohydrin compound. The methods of the present invention may also be performed in the absence of a phase transfer catalyst.
    Type: Grant
    Filed: May 15, 2014
    Date of Patent: July 17, 2018
    Assignee: Aditya Birla Chemicals (Thailand) Ltd.
    Inventors: Kumar Dubey Pradip, Alok Khullar, Thipa Nayawat, Kamonsun Visatsingh, Patcharin Samuthsen, Prashant Samant
  • Publication number: 20170152236
    Abstract: The invention relates to an improved process for making monomeric triglycidyl compounds, wherein the triglycidyl compounds include N, O-triglycidyl compounds containing at least one primary aromatic amine and one phenolic functional group attached to the same or a different aromatic ring. The methods of the present invention result in the production of N, O-triglycidyl compounds, such as those of formula I and II. The improved process is energy efficient, environment friendly, and results in increased yields of product. The methods of the present invention can be performed in the absence of protic organic co-solvents during the reaction of an epihalohydrin with an aminophenol, such as compounds of formula II and IV, which provides an intermediate halohydrin compound. The methods of the present invention may also be performed in the absence of a phase transfer catalyst.
    Type: Application
    Filed: May 15, 2014
    Publication date: June 1, 2017
    Applicant: Aditya Birla Chemicals (Thailand) Ltd.
    Inventors: Kumar Dubey Pradip, Alok Khullar, Thipa Nayawat, Kamonsun Visatsingh, Patcharin Samuthsen, Prashant Samant
  • Publication number: 20170154730
    Abstract: A capacitor including: a first electrode; a second electrode; and a dielectric material situated between the first electrode and the second electrode, where the dielectric material is a self-assembled block-copolymer film with a periodic morphology. The self-assembled block-copolymer film may have a lamellar morphology that is horizontally oriented into layers of copolymer parallel to the first electrode and second electrode.
    Type: Application
    Filed: November 30, 2016
    Publication date: June 1, 2017
    Inventors: Alamgir Karim, Saumil Prashant Samant