Patents Examined by Rosalynd Keys
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Patent number: 11964932Abstract: Provided are a tricyclodecane dimethanol composition, in which a ratio of structural isomers is controlled, and a preparation method thereof.Type: GrantFiled: May 20, 2022Date of Patent: April 23, 2024Assignee: SK Chemicals Co., Ltd.Inventors: Hee Il Chae, Ju-Sik Kang, Jeong Ho Park, Song Lee, Yu Mi Chang
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Patent number: 11945770Abstract: The present disclosure provides for processes and systems for the purification of alkyl sulfide product streams including dimethyl sulfide (DMS). In some aspects, the disclosure provides for the removal of carbon disulfide (CS2) from DMS via hydrolytic catalysis. In further embodiments, the disclosed catalytic processes are performed using mixed-metal catalyst systems such as cobalt-molybdenum (CoMo) and nickel-molybdenum (NiMo) catalyst systems.Type: GrantFiled: March 6, 2023Date of Patent: April 2, 2024Assignee: Chevron Phillips Chemical Company LPInventors: Kenneth M. Lassen, Ugochukwu Nwagwu, Jonathan Powell, Daniel M. Hasenberg
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Patent number: 11945772Abstract: A method including the step contacting an olefin, an alcohol, a metallosilicate catalyst and a solvent, wherein the solvent comprises structure (I): wherein R1 and R2 are each selected from the group consisting of an aryl group and an alkyl group with the proviso that at least one of R1 and R2 is an aryl group, further wherein n is 1-3.Type: GrantFiled: September 29, 2020Date of Patent: April 2, 2024Assignee: Dow Global Technologies LLCInventors: Wen-Sheng Lee, Mingzhe Yu, Jing L. Houser, Sung-Yu Ku, Wanglin Yu, Stephen W. King, Paulami Majumdar, Le Wang
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Patent number: 11932596Abstract: An object of the present invention is to provide, for example, a novel method for synthesizing a fluorovinyl ether compound from a fluorine-containing vinyl compound.Type: GrantFiled: December 30, 2022Date of Patent: March 19, 2024Assignee: DAIKIN INDUSTRIES, LTD.Inventors: Naoyuki Hoshiya, Akihiro Gotou, Yosuke Kishikawa
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Patent number: 11897837Abstract: The invention relates to a process for the co-production of alkyl mercaptan and of dialkyl disulfide, comprising the following successive steps: a) reaction of a C1-C4 alcohol in the presence of hydrogen sulfide (H2S) to form a stream (M) comprising an alkyl mercaptan, water, and possibly unreacted hydrogen sulfide, b) purification of the stream (M) to obtain a stream (N) enriched in alkyl mercaptan, c) recovery of a first portion of the stream (N) including the alkyl mercaptan purified in step b), d) oxidation with sulfur of the second portion of the stream (N) of alkyl mercaptan, to form a stream (O) comprising a dialkyl disulfide, hydrogen sulfide, and possibly unreacted alkyl mercaptan, e) purification of the stream (O) to separate, on the one hand, the enriched dialkyl disulfide and, on the other hand, the hydrogen sulfide and possibly the alkyl mercaptan that has not reacted in step d), f) recycling of the hydrogen sulfide and possibly of the alkyl mercaptan isolated in step e) into the stream (M) obType: GrantFiled: May 10, 2022Date of Patent: February 13, 2024Assignee: Arkema FranceInventors: Georges Fremy, Jean-Michel Raymond, Eric Lamant
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Patent number: 11873274Abstract: A system and method of regenerating triethylene glycol (TEG) in natural gas dehydration, including removing water from TEG in a TEG regeneration still column having a fired-heater reboiler that includes a burner and a reboiler vessel. The TEG bath temperature in the reboiler vessel and the oxygen gas content in a stack effluent from the burner are controlled automatically via a control system adjusting flow of air and fuel to the burner while maintaining a specified weight ratio of the air to the fuel.Type: GrantFiled: March 15, 2021Date of Patent: January 16, 2024Assignee: Saudi Arabian Oil CompanyInventor: Abdullah Y. Al-Aiderous
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Patent number: 11851397Abstract: Methods for synthesizing a mercaptan compound include the steps of contacting a nickel-molybdenum catalyst with H2S at a sulfiding temperature of less than or equal to 235° C. to form a supported sulfur-containing catalyst, and then contacting an alcohol compound or an olefin compound, H2S, and the supported sulfur-containing catalyst to form a reaction mixture containing the mercaptan compound.Type: GrantFiled: October 5, 2021Date of Patent: December 26, 2023Assignee: Chevron Phillips Chemical Company LPInventors: Jason L. Kreider, Daniel M. Hasenberg, Brian Gerlach, Dale M. Solaas, Kenneth M. Lassen
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Patent number: 11834395Abstract: An embodiment of the present invention provides a method for preparing hydrogenated bisphenol A, comprising: (a) heating a reactor in which bisphenol A, a solvent, and a ruthenium supported catalyst are added; (b) supplying hydrogen into the reactor to react; and (c) blocking the supply of hydrogen to react.Type: GrantFiled: September 14, 2022Date of Patent: December 5, 2023Assignee: KOREA KUMHO PETROCHEMICAL CO., LTD.Inventors: Kee Yoon Roh, Jung Hee Jang, Je Young Park, Nam Hyun Cho
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Patent number: 11820738Abstract: The present invention is to provide a means that can reduce coloring of secondary alcohol alkoxylate. The present invention relates to a method for producing a secondary alcohol alkoxylate which comprises feeding an alkylene oxide from a plurality of positions in a tubular reactor to a secondary alcohol to react them, wherein the alkylene oxide is fed in such a manner that a feeding interval is extended and a feeding rate is increased each with a specific proportion.Type: GrantFiled: January 27, 2022Date of Patent: November 21, 2023Assignee: NIPPON SHOKUBAI CO., LTD.Inventors: Tomoki Miyatake, Akimasa Watanabe, Shunsuke Iwakura
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Patent number: 11814344Abstract: A process synthesizes a compound with at least one alkylene group and at least one thiol or thiolate group. The process involves reacting a compound with at least one five-membered cyclic monothiocarbonate group with a starter selected from a compound with at least one thiol group, from a compound with at least one hydroxy group, or from a basic inorganic composed; to obtain a compound with at least one alkylene group and at least one thiol or thiolate group and carbon dioxide.Type: GrantFiled: April 23, 2020Date of Patent: November 14, 2023Assignee: BASF SEInventors: Peter Rudolf, Elliot Christ, Bernd Bruchmann, Indre Thiel, Thomas Maximilian Wurm
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Patent number: 11807596Abstract: The purpose of the present invention is to provide: novel thiol compounds; a method for synthesizing said thiol compounds; curing agents containing said thiol compounds; resin compositions containing said thiol compounds and an epoxy compound; and resin compositions containing said thiol compounds and an ene compound having a carbon-carbon double bond in a molecule. Furthermore, the purpose of the present invention is to provide adhesives and sealants having these resin compositions as ingredients. The thiol compounds of the present invention are represented by chemical formula (I) to chemical formula (VII).Type: GrantFiled: October 25, 2018Date of Patent: November 7, 2023Assignee: SHIKOKU CHEMICALS CORPORATIONInventors: Naoto Okumura, Akihito Otsuka, Takeshi Kumano, Kazuyuki Fujikawa, Yusuke Araki
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Patent number: 11795145Abstract: Provided are a methane-production inhibitor capable of inhibiting methane production for a long period of time, and a method for inhibiting methane production using the composition. A methane-production inhibitor composition contains one or more compounds selected from compounds represented by formula [I] as an effective ingredient, and a method for inhibiting methane production uses the composition. (In formula [I], X represents an —OR1 group, a hydroxyl group, or a halogen atom, Y represents an —OR2 group or an —SO2R3 group, R1 represents a benzoyl group, R2 represents a methylsulfonyl group or a chloromethylsulfonyl group, and R3 represents a chloromethyl group or a hydroxymethyl group.Type: GrantFiled: April 16, 2021Date of Patent: October 24, 2023Assignee: KUMIAI CHEMICAL INDUSTRY CO., LTD.Inventor: Yudai Hotta
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Patent number: 11787758Abstract: Provided are two-stage processes by which primary alcohols such as ethanol or 1-butanol are converted into distillate-range ethers and olefins utilizing Guerbet coupling followed by intermolecular dehydration. The ethers can be used, for example, as cetane-improvers in diesel fuel, while the olefins can be hydrogenated to afford paraffins.Type: GrantFiled: May 20, 2021Date of Patent: October 17, 2023Assignee: ExxonMobil Technology and Engineering CompanyInventors: Nathaniel M. Eagan, Michael P. Lanci, George W. Huber, Paolo Andres Cuello Penaloza, J. Scott Buchanan
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Patent number: 11787760Abstract: The present invention relates to a process for preparing ethers, particularly unsymmetrical ethers, and preferably ethers suitable for use as base stocks for lubricant compositions. In particular, the process involves the reaction of a branched-chain aldehyde and a branched-chain alcohol to form an enol ether and conversion of the enol ether to a saturated ether by reduction.Type: GrantFiled: November 5, 2019Date of Patent: October 17, 2023Assignee: BP P.L.C.Inventors: Jon Deeley, Gareth Armitage, Fiona Jackson, Gregory Price
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Patent number: 11780796Abstract: The present disclosure relates to a method of decomposing a phenolic by-product, including: a step of feeding and thermally cracking a phenolic by-product stream to and in a decomposition apparatus, recovering an active ingredient from a top discharge stream, and discharging a high-boiling substance through a bottom discharge stream; a step of pressurizing each of a side discharge stream of the decomposition apparatus and a bottom discharge stream of the decomposition apparatus; a step of mixing the pressurized side discharge stream of the decomposition apparatus and the pressurized bottom discharge stream of the decomposition apparatus with each other to form a mixed stream; and a step of passing a part of the mixed stream through a reboiler, circulating the part of the mixed stream to the decomposition apparatus, and discharging a residual mixed stream.Type: GrantFiled: November 23, 2020Date of Patent: October 10, 2023Assignee: LG Chem, Ltd.Inventors: Min Suk Kang, Sang Beom Lee, Chi Hyun Jang
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Patent number: 11767281Abstract: A process for manufacturing Pure Propofol with a purity of more than 99.90% is disclosed, said process comprising dissolving Crude Propofol in a solvent in which it is soluble to form a solution, treating the solution with aqueous alkali to form an aqueous alkali layer and a solvent layer, separating the aqueous alkali layer from the solvent layer using a phase separation technique, distilling off the solvent from the solvent layer, and distilling a residue of the solvent containing Propofol using steam or boiling water in a presence of dilute alkali and antioxidant like metabisulfite, under normal pressure or mild vacuum.Type: GrantFiled: February 4, 2021Date of Patent: September 26, 2023Inventor: Nandkumar Kashinath Chodankar
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Patent number: 11760710Abstract: A method is disclosed for treating a residual stream from bisphenol manufacture, wherein the residual stream comprises unreacted phenols, bisphenol isomers, trisphenols, organic sulfides and water. The method comprises contacting at least a portion of the residual stream or a reaction product thereof with an acidic catalyst under conditions sufficient to allow acid-catalyzed hydrolysis of organic sulfides in the residual stream to the corresponding thiols and produce an effluent stream, and then distilling at least a portion of the effluent stream to recover distillate products comprising phenols and thiols and produce a bottoms product comprising bisphenol isomers and trisphenols, and having a lower content of organic sulfides than the residual stream.Type: GrantFiled: July 6, 2018Date of Patent: September 19, 2023Assignee: BADGER LICENSING LLCInventor: David Palmer
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Patent number: 11760935Abstract: Polymerizable compounds, processes and intermediates for their preparation, compositions containing them, polymers made from the compounds or compositions, and uses of the polymerizable compounds, compositions and polymers.Type: GrantFiled: March 29, 2021Date of Patent: September 19, 2023Assignee: MERCK PATENT GMBHInventors: Thorsten Kodek, Oliver Heppert, Timo Uebel, Rocco Fortte, Leo Weegels
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Patent number: 11760709Abstract: The present disclosure provides a method for preparing resorcinol through micro-channel reaction. In the method, resorcinol is prepared through micro-channel reaction using m-aminophenol as a raw material, a diazo salt is synthesized at 0° C. or more, hydrolysis of the diazo salt is performed at 90° C. or less, and then reaction conditions are reduced; the reaction time is decreased from traditional 10 hours to less than 2 minutes, and therefore the reaction time is significantly shortened; the purity of a product is 75% or more, which is significantly improved.Type: GrantFiled: May 25, 2021Date of Patent: September 19, 2023Assignee: INNER MONGOLIA SHENG TANG INTERNATIONAL MONGOLIANInventors: Weidong Liu, Yantao Hao, Guodong Liang, Qinqin Gao, Pengshuai Li, Ting Zhang
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Patent number: 11739038Abstract: A novel method of producing 1-chloro-3-(4-chlorophenoxy)benzene can include performing hydrogenation reduction of 1-bromo-2-chloro-4-(4-chlorophenoxy)benzene or 1-bromo-4-chloro-2-(4-chlorophenoxy)benzene.Type: GrantFiled: March 10, 2021Date of Patent: August 29, 2023Assignee: Kureha CorporationInventors: Tsutomu Mukade, Hiroshi Hoshino, Hisataka Kobayashi, Rumi Sano, Natsuki Nemoto