Patents by Inventor Amarnath Singh
Amarnath Singh 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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Publication number: 20240089180Abstract: The disclosure provides an approach for backward compatibility of federated data centers. A method includes of synchronizing an object configuration includes creating an object at a global network manager, where the object is associated with one or more properties, and where each of the one or more properties is associated with a minimum virtualized networking version. The method includes determining at the global network manager a minimum compatibility version of the object that is a largest minimum virtualized networking version associated with the one or more properties. The method includes determining a span associated with the object, where the span includes one or more local network managers. The method includes, based on the minimum compatibility version and the span, synchronizing the object at each of the one or more local network managers or determining not to synchronize the object at each of the one or more local network managers.Type: ApplicationFiled: September 12, 2022Publication date: March 14, 2024Inventors: Sukhdev SINGH, Suresh MUPPALA, Amarnath PALAVALLI, Josh DORR, Pavlush MARGARIAN
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Publication number: 20240066499Abstract: The present invention describes a method to remove metals present in a mixture comprising one or more organic amines comprising the step of contacting the mixture with a silica-polyethyleneimine adsorbent.Type: ApplicationFiled: March 21, 2022Publication date: February 29, 2024Inventors: Yujun Liu, Xue Chen, Stephen W. King, Towhid Hasan, Jerrod Ruddick, James York, Amarnath Singh
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Publication number: 20220402835Abstract: The present invention relates to processes for preparing isoprene and mono-olefins comprising at least six carbon atoms.Type: ApplicationFiled: November 11, 2020Publication date: December 22, 2022Inventors: Marinus A. Bigi, Michael A. Brammer, Glenn A. Miller, Amarnath Singh
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Publication number: 20220288574Abstract: The present invention generally relates to processes for the recovery of rhodium from a catalyst purge stream from a C6 or higher olefin hydroformylation process.Type: ApplicationFiled: October 20, 2020Publication date: September 15, 2022Inventors: Marinus A. Bigi, Michael A. Brammer, Thomas C. Eisenschmid, Glenn A. Miller, George R. Phillips, Amarnath Singh
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Publication number: 20160130466Abstract: A method for forming a polyurethane coating on an industrial roller includes applying a coating that is a product of a coating forming reaction mixture, which includes a prepolymer component and a curative component, to an industrial roller. The prepolymer component includes a polycarbonate prepolymer, which is a product of a prepolymer forming reaction mixture that includes an isocyanate component and a polycarbonate polyol, and the prepolymer component is present in the coating forming reaction mixture in an amount from 30 wt % to 80 wt %, based on a total weight of the coating forming reaction mixture. The curative component includes a chlorinated aromatic diamine curative agent, and the curative component is present in the coating forming reaction mixture in an amount from 5 wt % to 20 wt %, based on the total weight of the coating forming reaction mixture. Further, the coating is cured to form a polyurethane coating layer on the industrial roller.Type: ApplicationFiled: June 25, 2014Publication date: May 12, 2016Inventors: Subodh P Jagtap, Marcin Grigoriew, Harpreet Singh, William H. Heath, Amarnath Singh
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Patent number: 9222008Abstract: A two-component curable adhesive or sealant composition is provided. The first component may comprise a mixture of at least one polyol selected from the group comprising a polyester polyol, a polyester-polycarbonate copolymer polyol, and combinations thereof, a resin, and optionally a solvent. The second component may comprise a prepolymer obtained by reacting a polyester-polycarbonate copolymer polyol which is the reaction product of a polyester polyol which is the reaction product of one or more organic acids, and one or more glycols having a functionality of two or more and one or more polycarbonate polyols, at least one organic polyisocyanate component, and at least one chain extending agent and optionally a solvent. Alternatively, the first component may comprise a polyester-polycarbonate copolymer polyol, a resin, and optionally a solvent. The second component may comprise a polyisocyanate curative and optionally a solvent.Type: GrantFiled: December 4, 2012Date of Patent: December 29, 2015Assignees: Dow Global Technologies LLC, Rohm and Haas CompanyInventors: Harpreet Singh, Viviano Bertolone, Orazio Rubulotta, Jorge Jimenez, William H. Heath, Amarnath Singh, William A. Koonce
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Patent number: 9181392Abstract: Embodiments of the invention provide for methods of producing a polycarbonate polyol. The method includes charging a vessel with butanediol, charging the vessel with a polymerization catalyst, and adding to the vessel dimethyl carbonate at a rate of at least 2.0 g of DMC per minute per kg of BDO to produce polycarbonate polyol at a polycarbonate polyol yield of at least 80% of a theoretical yield.Type: GrantFiled: March 13, 2013Date of Patent: November 10, 2015Assignee: Dow Global Technologies LLCInventors: William H. Heath, Harpreet Singh, Amarnath Singh, Jorge Jimenez, Qiuyun Xu
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Patent number: 9181391Abstract: Polyester-co-carbonate polyols and methods for producing the same are provided. The method comprises reacting one or more alcohols having an OH functionality of two or more with one or more organic diacids to form a reaction mixture, adding a first amount of dialkyl carbonate to the reaction mixture to remove water remaining from the reaction mixture by azeotropic drying, adding a transesterification catalyst to the dialkyl carbonate containing reaction mixture and adding a second amount of dialkyl carbonate to the catalyst containing reaction mixture.Type: GrantFiled: February 4, 2013Date of Patent: November 10, 2015Assignee: Dow Global Technologies LLCInventors: William H. Heath, Harpreet Singh, Amarnath Singh, Jorge Jimenez, Qiuyun Xu
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Patent number: 9096707Abstract: Embodiments of the invention provide for paper mill equipment that can better withstand the conditions of a paper mill. Embodiments encompass paper mill equipment that incorporate a polyurethane layer having a hysteresis value of less than 70% and a permanent set of less than 30%. The polyurethane layer includes a polyurethane produced by curing a mixed composition. The mixed composition includes at least a urethane prepolymer (A) and at least a curing agent (B) having an active hydrogen group (H). The urethane prepolymer (A) has at least one terminal isocyanate group and is obtained by reacting at least a polyisocyanate compound (a) with at least a polycarbonate diol compound (b) having a number average molecular weight of at least 1500 g/mol. The curing agent (B) includes at least an amine compound. The elastomer compositions are also useful to coat the acid pickling roller in the steel industry.Type: GrantFiled: February 7, 2013Date of Patent: August 4, 2015Assignee: Dow Global Technologies LLCInventors: Harpreet Singh, William H. Heath, Amarnath Singh, Asfar N. Chowdhury, Marcin Grigoriew, Kaoru Aou
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Patent number: 8987401Abstract: Methods of producing a composition comprising a crosslinkable silane-terminated polymer having at least one crosslinkable silyl group in each molecule are provided.Type: GrantFiled: June 14, 2012Date of Patent: March 24, 2015Assignee: Dow Global Technologies LLCInventors: Kamesh R. Vyakaranam, Ling Zhang, Venkat S. Minnikanti, Rajat Duggal, William A. Koonce, Amarnath Singh, Phillip S. Athey
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Publication number: 20150031815Abstract: A two-component curable adhesive or sealant composition is provided. The first component may comprise a mixture of at least one polyol selected from the group comprising a polyester polyol, a polyester-polycarbonate copolymer polyol, and combinations thereof, a resin, and optionally a solvent. The second component may comprise a prepolymer obtained by reacting a polyester-polycarbonate copolymer polyol which is the reaction product of a polyester polyol which is the reaction product of one or more organic acids, and one or more glycols having a functionality of two or more and one or more polycarbonate polyols, at least one organic polyisocyanate component, and at least one chain extending agent and optionally a solvent. Alternatively, the first component may comprise a polyester-polycarbonate copolymer polyol, a resin, and optionally a solvent. The second component may comprise a polyisocyanate curative and optionally a solvent.Type: ApplicationFiled: December 4, 2012Publication date: January 29, 2015Applicants: ROHM AND HAAS COMPANY, DOW GLOBAL TECHNOLOGIES LLCInventors: Harpreet Singh, Viviano Bertolone, Orazio Rubulotta, Jorge Jimenez, William H. Heath, Amarnath Singh, William A. Koonce
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Publication number: 20150025217Abstract: Embodiments of the invention provide for methods of producing a polycarbonate polyol. The method includes charging a vessel with butanediol, charging the vessel with a polymerization catalyst, and adding to the vessel dimethyl carbonate at a rate of at least 2.0 g of DMC per minute per kg of BDO to produce polycarbonate polyol at a polycarbonate polyol yield of at least 80% of a theoretical yield.Type: ApplicationFiled: March 13, 2013Publication date: January 22, 2015Applicant: Dow Global Technologies LLCInventors: William H. Heath, Harpreet Singh, Amarnath Singh, Jorge Jimenez, Qiuyun Xu
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Publication number: 20150018512Abstract: Polyester-co-carbonate polyols and methods for producing the same are provided. The method comprises reacting one or more alcohols having an OH functionality of two or more with one or more organic diacids to form a reaction mixture, adding a first amount of dialkyl carbonate to the reaction mixture to remove water remaining from the reaction mixture by azeotropic drying, adding a transesterification catalyst to the dialkyl carbonate containing reaction mixture and adding a second amount of dialkyl carbonate to the catalyst containing reaction mixture.Type: ApplicationFiled: February 4, 2013Publication date: January 15, 2015Inventors: William H. Heath, Harpreet Singh, Amarnath Singh, Jorge Jimenez, Qiuyun Xu
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Publication number: 20140352904Abstract: Embodiments of the invention provide for paper mill equipment that can better withstand the conditions of a paper Mill. Embodiments encompass paper mill equipment that incorporate a polyurethane layer having a hysteresis value of less than 70% and a permanent set of less than 30%. The polyurethane layer includes a polyurethane produced by curing a mixed composition. The mixed composition includes at least a urethane prepolymer (A) and at least a curing agent (B) having an active hydrogen group (H). The urethane prepolymer (A) has at least one terminal isocyanate group and is obtained by reacting at least a polyisocyanate compound (a) with at least a polycarbonate diol compound (b) having a number average molecular weight of at least 1500 g/mol. The curing agent (B) includes at least an amine compound. The elastomer compositions are also useful to coat the acid pickling roller in the steel industry.Type: ApplicationFiled: February 27, 2013Publication date: December 4, 2014Applicant: Dow Global Technologies LLCInventors: Harpreet Singh, William H. Heath, Amarnath Singh, Asfar N. Chowdhury, Marcin Grigoriew, Kaoru Aou
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Publication number: 20140107288Abstract: Embodiments of the invention generally relate to polyols having resistance to hydrocarbons and articles made therefrom. More specifically, embodiments of the invention generally relate to hydrophilic polyester-polycarbonate polyols having resistance to hydrocarbons at high temperatures and articles made therefrom. The novel hydrophilic polyester-polycarbonate polyols described herein may be used in adhesive or elastomer applications requiring enhanced oil and/or diesel resistance. The disclosed polyols are liquid at room temperature, which facilitates processing into polyurethane products As described herein, an elastomer made from such hydrophilic polyester-polycarbonate polyols and methylene diphenyl diisocyanate (MDI) retained >90% of tensile strength after 500 hours ageing at 121 degrees Celsius. A comparative example made from a polyester polyol retained 50% of tensile strength under similar conditions.Type: ApplicationFiled: March 27, 2012Publication date: April 17, 2014Applicant: Dow Global Technologies LLCInventors: Harpreet Singh, Jorge Jimenez, William H. Heath, Woo-Sung Bae, Amarnath Singh
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Publication number: 20140100348Abstract: Methods of producing a composition comprising a crosslinkable silane-terminated polymer having at least one cross-linkable silyl group in each molecule are provided.Type: ApplicationFiled: June 14, 2012Publication date: April 10, 2014Applicant: DOW GLOBAL TECHNOLOGIES LLCInventors: Kamesh R. Vyakaranam, Ling Zhang, Venkat S. Minnikanti, Rajat Duggal, William A. Koonce, Amarnath Singh, Phillip S. Athey
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Publication number: 20140088245Abstract: Disclosed are hydrophobic polyester-polycarbonate polyols which are the reaction product of (a) a polyester polyol and (b) one or more polycarbonate polyols. The polyester polyol (a) is the reaction product of: (i) one or more hydrophobic monomers, (ii) one or more organic acids, and (iii) one or more alcohols having an OH functionality of 2 or more. The polyester-polycarbonate polyols may be both amorphous and liquid at room temperature and have excellent hydrolytic stability. The hydrolytic and chemical performance of the polyester-polycarbonate polyols described herein is superior to that of commercially available hydrophobically modified polyester polyols and to that of commercially available polyester-polycarbonate polyols as described herein.Type: ApplicationFiled: March 30, 2012Publication date: March 27, 2014Applicant: Dow Global Technologies LLCInventors: Harpreet Singh, Jorge Jimenez, William H. Heath, Woo-Sung Bae, Amarnath Singh
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Publication number: 20130331510Abstract: Embodiments of the invention generally relate to polyurethanes having resistance to hydrocarbons and articles made therefrom. In one embodiment, a hydrocarbon resistant polycarbonate elastomer containing article is provided. The hydrocarbon resistant polycarbonate elastomer is prepared from a reaction mixture comprising (a) one or more difunctional polycarbonate polyols comprising repeating units from one or more alkane diols having 2 to 20 carbon atoms with a number average molecular weight between 500 and 3,000, and (b) one or more organic polyisocyanate components, wherein the article is selected from filter caps, conduits, containers, seals, mechanical belts, liners, coatings, rollers and machine parts.Type: ApplicationFiled: February 14, 2012Publication date: December 12, 2013Applicant: DOW GLOBAL TECHNOLOGIES LLCInventors: Harpreet Singh, Michael J. Barnes, William H. Heath, Amarnath Singh