Patents by Inventor Rajni Gupta

Rajni Gupta 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: 11801214
    Abstract: A crosslinkable coating composition comprising: ingredient A that has at least two protons that can be activated to form a Michael carbanion donor; ingredient B that functions as a Michael acceptor having at least two ethylenically unsaturated functionalities each activated by an electron-withdrawing group; and a dormant carbamate initiator of Formula (1) wherein R1 and R2 can be independently selected from hydrogen, a linear or branched substituted or unsubstituted alkyl group having 1 to 22 carbon atoms; 1 to 8 carbon atoms; and An+ is a cationic species or polymer and n is an integer equal or greater than 1 with the proviso that An+ is not an acidic hydrogen; and optionally further comprising ammonium carbamate (H2NR1R2+?OC?ONR1R2). The crosslinkable coating composition can be used for a variety of coating applications including nail coating compositions.
    Type: Grant
    Filed: March 29, 2022
    Date of Patent: October 31, 2023
    Assignee: ELEMENTIS SPECIALTIES, INC.
    Inventors: Wouter Ijdo, Yanhui Chen, Prashant Deshmukh, Rajni Gupta, James A. Heck, Wayne Hoyte, Maurice Gray
  • Publication number: 20220251414
    Abstract: A crosslinkable coating composition comprising: ingredient A that has at least two protons that can be activated to form a Michael carbanion donor, wherein ingredient A is selected from the group consisting of an acetoacetate group containing compound, an acetoacetate group containing oligomer, an acetoacetate group containing polymer and combinations thereof; ingredient B that functions as a Michael acceptor having at least two ethylenically unsaturated functionalities each activated by an electron-withdrawing group; a surface modifying agent selected from the group consisting of perfluorosurfactants, polyacrylates, polyacrylate copolymers, fluorocarbon polyacrylates, fluorocarbon polyacrylate copolymers, polysiloxane and copolymers thereof and combinations thereof; and a chemical activator.
    Type: Application
    Filed: February 1, 2022
    Publication date: August 11, 2022
    Applicant: Elementis Specialties, Inc.
    Inventors: Yanhui CHEN, Maurice GRAY, Rajni GUPTA, Wouter Laurens IJDO
  • Publication number: 20220218587
    Abstract: A crosslinkable coating composition comprising: ingredient A that has at least two protons that can be activated to form a Michael carbanion donor; ingredient B that functions as a Michael acceptor having at least two ethylenically unsaturated functionalities each activated by an electron-withdrawing group; and a dormant carbamate initiator of Formula (1) wherein R1 and R2 can be independently selected from hydrogen, a linear or branched substituted or unsubstituted alkyl group having 1 to 22 carbon atoms; 1 to 8 carbon atoms; and An+ is a cationic species or polymer and n is an integer equal or greater than 1 with the proviso that An+ is not an acidic hydrogen; and optionally further comprising ammonium carbamate (H2NR1R2+?OC?ONR1R2). The crosslinkable coating composition can be used for a variety of coating applications including nail coating compositions.
    Type: Application
    Filed: March 29, 2022
    Publication date: July 14, 2022
    Applicant: Elementis Specialties, Inc.
    Inventors: Wouter Ijdo, Yanhui Chen, Prashant Deshmukh, Rajni Gupta, James A. Heck, Wayne Hoyte, Maurice Gray
  • Patent number: 11318082
    Abstract: A crosslinkable coating composition comprising: ingredient A that has at least two protons that can be activated to form a Michael carbanion donor; ingredient B that functions as a Michael acceptor having at least two ethylenically unsaturated functionalities each activated by an electron-withdrawing group; and a dormant carbamate initiator of Formula (1) wherein R1 and R2 can be independently selected from hydrogen, a linear or branched substituted or unsubstituted alkyl group having 1 to 22 carbon atoms; 1 to 8 carbon atoms; and An+ is a cationic species or polymer and n is an integer equal or greater than 1 with the proviso that An+ is not an acidic hydrogen; and optionally further comprising ammonium carbamate (H2NR1R2+?OC?ONR1R2). The crosslinkable coating composition can be used for a variety of coating applications including nail coating compositions.
    Type: Grant
    Filed: August 21, 2020
    Date of Patent: May 3, 2022
    Assignee: ELEMENTS SPECIALTIES, INC.
    Inventors: Wouter Ijdo, Yanhui Chen, Prashant Deshmukh, Rajni Gupta, James A. Heck, Wayne Hoyte, Maurice Gray
  • Publication number: 20210108088
    Abstract: A coating composition containing a crosslinkable coating composition. The coating system comprises: ingredient A that has at least two protons that can be activated to form a Michael carbanion donor; ingredient B that functions as a Michael acceptor having at least two ethylenically unsaturated functionalities each activated by an electron-withdrawing group; and a catalyst system. In one embodiment, the catalyst system comprises diethyl carbonate, quaternary ammonium hydroxide or quaternary ammonium alkoxide, ethanol and 4-6 wt. % water. In another embodiment, the catalyst system comprises carbon dioxide, quaternary ammonium hydroxide or quaternary ammonium alkoxide, ethanol and 2-4 wt. % water. In certain embodiments, the coating composition optionally further comprising ammonium carbamate (H2NR8R9+—OC?ONR8R9), wherein R8 R9 are each independently selected from hydrogen, a linear or branched substituted or unsubstituted alkyl group having 1 to 22 carbon atoms; 1 to 8 carbon atoms; 1 to 3 carbon atoms.
    Type: Application
    Filed: December 21, 2020
    Publication date: April 15, 2021
    Applicant: Elementis Specialties, Inc.
    Inventors: Rajni GUPTA, Wouter IJDO, Yanhui CHEN, Prashant DESHMUKH, James A. HECK, Wayne HOYTE, Maurice GRAY
  • Patent number: 10894886
    Abstract: A coating composition containing a crosslinkable coating composition. The coating system comprises: ingredient A that has at least two protons that can be activated to form a Michael carbanion donor; ingredient B that functions as a Michael acceptor having at least two ethylenically unsaturated functionalities each activated by an electron-withdrawing group; and a catalyst system. In one embodiment, the catalyst system comprises diethyl carbonate, quaternary ammonium hydroxide or quaternary ammonium alkoxide, ethanol and 4-6 wt. % water. In another embodiment, the catalyst system comprises carbon dioxide, quaternary ammonium hydroxide or quaternary ammonium alkoxide, ethanol and 2-4 wt. % water. In certain embodiments, the coating composition optionally further comprising ammonium carbamate (H2NR8R9+—OC?ONR8R9), wherein R8R9 are each independently selected from hydrogen, a linear or branched substituted or unsubstituted alkyl group having 1 to 22 carbon atoms; 1 to 8 carbon atoms; 1 to 3 carbon atoms.
    Type: Grant
    Filed: June 13, 2018
    Date of Patent: January 19, 2021
    Assignee: Elementis Specialties, Inc.
    Inventors: Rajni Gupta, Wouter Ijdo, Yanhui Chen, Prashant Deshmukh, James A. Heck, Wayne Hoyte, Maurice Gray
  • Publication number: 20210007963
    Abstract: A crosslinkable coating composition comprising: ingredient A that has at least two protons that can be activated to form a Michael carbanion donor; ingredient B that functions as a Michael acceptor having at least two ethylenically unsaturated functionalities each activated by an electron-withdrawing group; and a dormant carbamate initiator of Formula (1) wherein R1 and R2 can be independently selected from hydrogen, a linear or branched substituted or unsubstituted alkyl group having 1 to 22 carbon atoms; 1 to 8 carbon atoms; and An+ is a cationic species or polymer and n is an integer equal or greater than 1 with the proviso that An+ is not an acidic hydrogen; and optionally further comprising ammonium carbamate (H2NR1R2+?OC?ONR1R2). The crosslinkable coating composition can be used for a variety of coating applications including nail coating compositions.
    Type: Application
    Filed: August 21, 2020
    Publication date: January 14, 2021
    Applicant: Elementis Specialties, Inc.
    Inventors: Wouter IJDO, Yanhui CHEN, Prashant DESHMUKH, Rajni GUPTA, James A. HECK, Wayne HOYTE, Maurice GRAY
  • Patent number: 10799443
    Abstract: A crosslinkable coating composition comprising: ingredient A that has at least two protons that can be activated to form a Michael carbanion donor; ingredient B that functions as a Michael acceptor having at least two ethylenically unsaturated functionalities each activated by an electron-withdrawing group; and a dormant carbamate initiator of Formula (1) wherein R1 and R2 can be independently selected from hydrogen, a linear or branched substituted or unsubstituted alkyl group having 1 to 22 carbon atoms; 1 to 8 carbon atoms; and An+ is a cationic species or polymer and n is an integer equal or greater than 1 with the proviso that An+ is not an acidic hydrogen; and optionally further comprising ammonium carbamate (H2NR1R2+?OC?ONR1R2). The crosslinkable coating composition can be used for a variety of coating applications including nail coating compositions.
    Type: Grant
    Filed: March 18, 2020
    Date of Patent: October 13, 2020
    Assignee: ELEMENTIS SPECIALTIES, INC.
    Inventors: Wouter Ijdo, Yanhui Chen, Prashant Deshmukh, Rajni Gupta, James A. Heck, Wayne Hoyte, Maurice Gray
  • Publication number: 20200214966
    Abstract: A crosslinkable coating composition comprising: ingredient A that has at least two protons that can be activated to form a Michael carbanion donor; ingredient B that functions as a Michael acceptor having at least two ethylenically unsaturated functionalities each activated by an electron-withdrawing group; and a dormant carbamate initiator of Formula (1) wherein R1 and R2 can be independently selected from hydrogen, a linear or branched substituted or unsubstituted alkyl group having 1 to 22 carbon atoms; 1 to 8 carbon atoms; and An+ is a cationic species or polymer and n is an integer equal or greater than 1 with the proviso that An+ is not an acidic hydrogen; and optionally further comprising ammonium carbamate (H2NR1R2+?OC?ONR1R2). The crosslinkable coating composition can be used for a variety of coating applications including nail coating compositions.
    Type: Application
    Filed: March 18, 2020
    Publication date: July 9, 2020
    Applicant: Elementis Specialties, Inc.
    Inventors: Wouter IJDO, Yanhui CHEN, Prashant DESHMUKH, Rajni GUPTA, James A. HECK, Wayne HOYTE, Maurice GRAY
  • Patent number: 10624833
    Abstract: A crosslinkable coating composition comprising: ingredient A that has at least two protons that can be activated to form a Michael carbanion donor; ingredient B that functions as a Michael acceptor having at least two ethylenically unsaturated functionalities each activated by an electron-withdrawing group; and a dormant carbamate initiator of Formula (1) wherein R1 and R2 can be independently selected from hydrogen, a linear or branched substituted or unsubstituted alkyl group having 1 to 22 carbon atoms; 1 to 8 carbon atoms; and An+ is a cationic species or polymer and n is an integer equal or greater than 1 with the proviso that An+ is not an acidic hydrogen; and optionally further comprising ammonium carbamate (H2NR1R2+?OC?ONR1R2). The crosslinkable coating composition can be used for a variety of coating applications including nail coating compositions.
    Type: Grant
    Filed: June 13, 2017
    Date of Patent: April 21, 2020
    Assignee: ELEMENTIS SPECIALTIES, INC.
    Inventors: Wouter Ijdo, Yanhui Chen, Prashant Deshmukh, Rajni Gupta, James A. Heck, Wayne Hoyte, Maurice Gray
  • Publication number: 20180355185
    Abstract: A coating composition containing a crosslinkable coating composition. The coating system comprises: ingredient A that has at least two protons that can be activated to form a Michael carbanion donor; ingredient B that functions as a Michael acceptor having at least two ethylenically unsaturated functionalities each activated by an electron-withdrawing group; and a catalyst system. In one embodiment, the catalyst system comprises diethyl carbonate, quaternary ammonium hydroxide or quaternary ammonium alkoxide, ethanol and 4-6 wt. % water. In another embodiment, the catalyst system comprises carbon dioxide, quaternary ammonium hydroxide or quaternary ammonium alkoxide, ethanol and 2-4 wt. % water. In certain embodiments, the coating composition optionally further comprising ammonium carbamate (H2NR8R9+—OC?ONR8R9), wherein R8R9 are each independently selected from hydrogen, a linear or branched substituted or unsubstituted alkyl group having 1 to 22 carbon atoms; 1 to 8 carbon atoms; 1 to 3 carbon atoms.
    Type: Application
    Filed: June 13, 2018
    Publication date: December 13, 2018
    Applicant: Elementis Specialties, Inc.
    Inventors: Rajni GUPTA, Wouter IJDO, Yanhui CHEN, Prashant DESHMUKH, James A. HECK, Wayne HOYTE, Maurice GRAY
  • Publication number: 20180353400
    Abstract: A nail polish composition containing a crosslinkable coating composition.
    Type: Application
    Filed: June 13, 2018
    Publication date: December 13, 2018
    Applicant: Elementis Specialties, Inc.
    Inventors: Wouter IJDO, Yanhui CHEN, Prashant DESHMUKH, Rajni GUPTA, James A. HECK, Wayne HOYTE, Maurice GRAY
  • Publication number: 20180353421
    Abstract: A clear coating composition for use over nail polish.
    Type: Application
    Filed: June 13, 2018
    Publication date: December 13, 2018
    Applicant: Elementis Specialties, Inc.
    Inventors: Wouter IJDO, Yanhui CHEN, Prashant DESHMUKH, Rajni GUPTA, James A. HECK, Wayne HOYTE, Maurice GRAY
  • Publication number: 20180000720
    Abstract: A crosslinkable coating composition comprising: ingredient A that has at least two protons that can be activated to form a Michael carbanion donor; ingredient B that functions as a Michael acceptor having at least two ethylenically unsaturated functionalities each activated by an electron-withdrawing group; and a dormant carbamate initiator of Formula (1) wherein R1 and R2 can be independently selected from hydrogen, a linear or branched substituted or unsubstituted alkyl group having 1 to 22 carbon atoms; 1 to 8 carbon atoms; and An+ is a cationic species or polymer and n is an integer equal or greater than 1 with the proviso that An+ is not an acidic hydrogen; and optionally further comprising ammonium carbamate (H2NR1R2+?OC?ONR1R2). The crosslinkable coating composition can be used for a variety of coating applications including nail coating compositions.
    Type: Application
    Filed: June 13, 2017
    Publication date: January 4, 2018
    Applicant: Elementis Specialties, Inc.
    Inventors: Wouter IJDO, Yanhui CHEN, Prashant DESHMUKH, Rajni GUPTA, James A. HECK, Wayne HOYTE, Maurice GRAY
  • Publication number: 20150376490
    Abstract: A composition and method to control viscosity with respect to temperature for an oil-based drilling fluid by adding a polyamide drilling fluid additive to the oil based drilling fluid. In some embodiments, a polyamide drilling fluid additive includes a reaction product of (i) a carboxylic acid with a single carboxylic moiety; (ii) a carboxylic acid with two carboxylic moieties, a carboxylic acid with three carboxylic moieties and combinations thereof; and (iii) a polyamine having an amine functionality of two or more; and placing the placing the oil based drilling fluid into the subterranean formation.
    Type: Application
    Filed: June 30, 2014
    Publication date: December 31, 2015
    Applicant: ELEMENTIS SPECIALTIES, INC.
    Inventors: David DINO, Kamal Said Kamal ELSAYED, Yanhui CHEN, Jeffrey THOMPSON, Rajni Gupta