Patents by Inventor Amiya Ratan Tripathy

Amiya Ratan Tripathy 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).

  • Curing agents for compounds
    Patent number: 11274189
    Abstract: Curing fluoroelastomers using curing agents of formula, R1N?CR2R3, wherein R1 is H; R2 is selected from the group consisting of H, NH2, and NR4R5; R3 is selected from the group consisting of Ph, SO2H, NR6R7, 2-pyridine, and CH2CONH2; R4 is H; R5 is selected from the group consisting of Ph, NH2, and CN; R6 is selected from the group consisting of H, NHPh, CCONH2, C1 to C8 linear alkyl group, and C1 to C8 branched alkyl group; and R7 is selected from the group consisting of Ph, COOC(CH3)3, NH2, CH2COOH, CSNH2, CNHNH3+Cl?, p-phenylCN, COPh,
    Type: Grant
    Filed: September 26, 2019
    Date of Patent: March 15, 2022
    Assignee: DuPont Polymers, Inc.
    Inventors: Christopher J Bish, Peter A Morken, Amiya Ratan Tripathy
  • Curable fluoroelastomer composition
    Patent number: 11174330
    Abstract: Fluoroelastomer compositions comprising fluoroelastomers having copolymerized units of a nitrile-containing cure site monomer are cured with certain hydrazone or oxime curatives.
    Type: Grant
    Filed: March 6, 2020
    Date of Patent: November 16, 2021
    Assignee: DUPONT POLYMERS, INC.
    Inventors: Amiya Ratan Tripathy, Peter A Morken, Christopher J. Bish
  • Curing agents for compounds
    Patent number: 10836893
    Abstract: A fluoroelastomer compound comprising at least one co-agent and at least one chemical entity comprising: (1) an azo functional group or (2) an oxazoline functional group, when cured into an article using a peroxide curing agent, the article exhibits no visible particles on the article surface when viewed at a magnification of 500 times that of an unmagnified image.
    Type: Grant
    Filed: December 7, 2015
    Date of Patent: November 17, 2020
    Assignee: DUPONT POLYMERS, INC.
    Inventors: Peter A. Morken, Amiya Ratan Tripathy
  • CURABLE FLUOROELASTOMER COMPOSITION
    Publication number: 20200207893
    Abstract: Fluoroelastomer compositions comprising fluoroelastomers having copolymerized units of a nitrile-containing cure site monomer are cured with certain hydrazone or oxime curatives.
    Type: Application
    Filed: March 6, 2020
    Publication date: July 2, 2020
    Inventors: AMIYA RATAN TRIPATHY, Peter A. Morken, Christopher J. Bish
  • Curable fluoroelastomer composition
    Patent number: 10604607
    Abstract: Fluoroelastomer compositions comprising fluoroelastomers having copolymerized units of a nitrile-containing cure site monomer are cured with certain hydrazone or oxime curatives.
    Type: Grant
    Filed: October 29, 2015
    Date of Patent: March 31, 2020
    Assignee: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Amiya Ratan Tripathy, Peter A. Morken, Christopher J. Bish
  • CURING AGENTS FOR COMPOUNDS
    Publication number: 20200024425
    Abstract: Curing fluoroelastomers using curing agents of formula, R1N?CR2R3, wherein R1 is H; R2 is selected from the group consisting of H, NH2, and NR4R5; R3 is selected from the group consisting of Ph, SO2H, NR6R7, 2-pyridine, and CH2CONH2; R4 is H; R5 is selected from the group consisting of Ph, NH2, and CN; R6 is selected from the group consisting of H, NHPh, CCONH2, C1 to C8 linear alkyl group, and C1 to C8 branched alkyl group; and R7 is selected from the group consisting of Ph, COOC(CH3)3, NH2, CH2COOH, CSNH2, CNHNH3+Cl?, p-phenylCN, COPh,
    Type: Application
    Filed: September 26, 2019
    Publication date: January 23, 2020
    Inventors: CHRISTOPHER J. BISH, PETER A. MORKEN, AMIYA RATAN TRIPATHY
  • Curing agents for compounds
    Patent number: 10472494
    Abstract: Curing fluoroelastomers using curing agents of formula, R1N?CR2R3, wherein R1 is H; R2 is selected from the group consisting of H, NH2, and NR4R5; R3 is selected from the group consisting of Ph, SO2H, NR6R7, 2-pyridine, and CH2CONH2; R4 is H; R5 is selected from the group consisting of Ph, NH2, and CN; R6 is selected from the group consisting of H, NHPh, CCONH2, C1 to C8 linear alkyl group, and C1 to C8 branched alkyl group; and R7 is selected from the group consisting of Ph, COOC(CH3)3, NH2, CH2COOH, CSNH2, CNHNH3+Cl?, p-phenylCN, COPh,
    Type: Grant
    Filed: September 26, 2015
    Date of Patent: November 12, 2019
    Assignee: DuPont Polymers, Inc.
    Inventors: Christopher J Bish, Peter A Morken, Amiya Ratan Tripathy
  • CURABLE FLUOROELASTOMER COMPOSITION
    Publication number: 20190048112
    Abstract: Fluoroelastomer compositions comprising fluoroelastomers having copolymerized units of a nitrile-containing cure site monomer are cured with certain hydrazone or oxime curatives.
    Type: Application
    Filed: October 29, 2015
    Publication date: February 14, 2019
    Inventors: Amiya Ratan Tripathy, Peter A. Morken, Christopher J. Bish
  • CURING AGENTS FOR COMPOUNDS
    Publication number: 20180371227
    Abstract: A fluoroelastomer compound comprising at least one co-agent and at least one chemical entity comprising: (1) an azo functional group or (2) an oxazoline functional group, when cured into an article using a peroxide curing agent, the article exhibits no visible particles on the article surface when viewed at a magnification of 500 times that of an unmagnified image.
    Type: Application
    Filed: December 7, 2015
    Publication date: December 27, 2018
    Inventors: Peter A. Morken, Amiya Ratan Tripathy
  • CURING AGENTS FOR COMPOUNDS
    Publication number: 20170088692
    Abstract: Curing fluoroelastomers using curing agents of formula, R1N?CR2R3 , wherein R1 is H; R2 is selected from the group consisting of H, NH2, and NR4R5; R3 is selected from the group consisting of Ph, SO2H, NR6R7, 2-pyridine, and CH2CONH2; R4 is H; R5 is selected from the group consisting of Ph, NH2, and CN; R6 is selected from the group consisting of H, NHPh, CCONH2, C1 to C8 linear alkyl group, and C1 to C8 branched alkyl group; and R7 is selected from the group consisting of Ph, COOC(CH3)3, NH2, CH2COOH, CSNH2, CNHNH3+Cl31 , p-phenylCN, COPh,
    Type: Application
    Filed: September 26, 2015
    Publication date: March 30, 2017
    Applicant: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: CHRISTOPHER J. BISH, PETER A. MORKEN, AMIYA RATAN TRIPATHY
  • Thermal Stability of FFKM Compounds
    Publication number: 20170022347
    Abstract: Compounds comprising a fluoroelastomer cured with peroxide curing agents and a metal sulfide, wherein the compounds comprise copolymerized units of unsaturated fluorinated olefins, a perfluoro(vinyl ether), and a cure site fluorinated monomer comprising one or more bromine atoms and/or one or more iodine atoms. Articles cured from these compounds; and processes of curing these compounds to result in articles.
    Type: Application
    Filed: July 21, 2015
    Publication date: January 26, 2017
    Applicant: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Amiya Ratan Tripathy, Christopher J. Bish