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).
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Patent number: 11801214Abstract: 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: GrantFiled: March 29, 2022Date of Patent: October 31, 2023Assignee: ELEMENTIS SPECIALTIES, INC.Inventors: Wouter Ijdo, Yanhui Chen, Prashant Deshmukh, Rajni Gupta, James A. Heck, Wayne Hoyte, Maurice Gray
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Publication number: 20220251414Abstract: 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: ApplicationFiled: February 1, 2022Publication date: August 11, 2022Applicant: Elementis Specialties, Inc.Inventors: Yanhui CHEN, Maurice GRAY, Rajni GUPTA, Wouter Laurens IJDO
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Publication number: 20220218587Abstract: 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: ApplicationFiled: March 29, 2022Publication date: July 14, 2022Applicant: Elementis Specialties, Inc.Inventors: Wouter Ijdo, Yanhui Chen, Prashant Deshmukh, Rajni Gupta, James A. Heck, Wayne Hoyte, Maurice Gray
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Patent number: 11318082Abstract: 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: GrantFiled: August 21, 2020Date of Patent: May 3, 2022Assignee: ELEMENTS SPECIALTIES, INC.Inventors: Wouter Ijdo, Yanhui Chen, Prashant Deshmukh, Rajni Gupta, James A. Heck, Wayne Hoyte, Maurice Gray
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Publication number: 20210108088Abstract: 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: ApplicationFiled: December 21, 2020Publication date: April 15, 2021Applicant: Elementis Specialties, Inc.Inventors: Rajni GUPTA, Wouter IJDO, Yanhui CHEN, Prashant DESHMUKH, James A. HECK, Wayne HOYTE, Maurice GRAY
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Patent number: 10894886Abstract: 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: GrantFiled: June 13, 2018Date of Patent: January 19, 2021Assignee: Elementis Specialties, Inc.Inventors: Rajni Gupta, Wouter Ijdo, Yanhui Chen, Prashant Deshmukh, James A. Heck, Wayne Hoyte, Maurice Gray
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Publication number: 20210007963Abstract: 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: ApplicationFiled: August 21, 2020Publication date: January 14, 2021Applicant: Elementis Specialties, Inc.Inventors: Wouter IJDO, Yanhui CHEN, Prashant DESHMUKH, Rajni GUPTA, James A. HECK, Wayne HOYTE, Maurice GRAY
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Patent number: 10799443Abstract: 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: GrantFiled: March 18, 2020Date of Patent: October 13, 2020Assignee: ELEMENTIS SPECIALTIES, INC.Inventors: Wouter Ijdo, Yanhui Chen, Prashant Deshmukh, Rajni Gupta, James A. Heck, Wayne Hoyte, Maurice Gray
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Publication number: 20200214966Abstract: 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: ApplicationFiled: March 18, 2020Publication date: July 9, 2020Applicant: Elementis Specialties, Inc.Inventors: Wouter IJDO, Yanhui CHEN, Prashant DESHMUKH, Rajni GUPTA, James A. HECK, Wayne HOYTE, Maurice GRAY
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Patent number: 10624833Abstract: 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: GrantFiled: June 13, 2017Date of Patent: April 21, 2020Assignee: ELEMENTIS SPECIALTIES, INC.Inventors: Wouter Ijdo, Yanhui Chen, Prashant Deshmukh, Rajni Gupta, James A. Heck, Wayne Hoyte, Maurice Gray
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Publication number: 20180355185Abstract: 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: ApplicationFiled: June 13, 2018Publication date: December 13, 2018Applicant: Elementis Specialties, Inc.Inventors: Rajni GUPTA, Wouter IJDO, Yanhui CHEN, Prashant DESHMUKH, James A. HECK, Wayne HOYTE, Maurice GRAY
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Publication number: 20180353400Abstract: A nail polish composition containing a crosslinkable coating composition.Type: ApplicationFiled: June 13, 2018Publication date: December 13, 2018Applicant: Elementis Specialties, Inc.Inventors: Wouter IJDO, Yanhui CHEN, Prashant DESHMUKH, Rajni GUPTA, James A. HECK, Wayne HOYTE, Maurice GRAY
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Publication number: 20180353421Abstract: A clear coating composition for use over nail polish.Type: ApplicationFiled: June 13, 2018Publication date: December 13, 2018Applicant: Elementis Specialties, Inc.Inventors: Wouter IJDO, Yanhui CHEN, Prashant DESHMUKH, Rajni GUPTA, James A. HECK, Wayne HOYTE, Maurice GRAY
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Publication number: 20180000720Abstract: 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: ApplicationFiled: June 13, 2017Publication date: January 4, 2018Applicant: Elementis Specialties, Inc.Inventors: Wouter IJDO, Yanhui CHEN, Prashant DESHMUKH, Rajni GUPTA, James A. HECK, Wayne HOYTE, Maurice GRAY
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Publication number: 20150376490Abstract: 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: ApplicationFiled: June 30, 2014Publication date: December 31, 2015Applicant: ELEMENTIS SPECIALTIES, INC.Inventors: David DINO, Kamal Said Kamal ELSAYED, Yanhui CHEN, Jeffrey THOMPSON, Rajni Gupta