Patents Assigned to MEXICHEM FLUORS S.A DE C. V.
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Patent number: 12018203Abstract: According to the present invention, there is provided a composition comprising 1,1-difluoroethylene (R-1132a), difluoromethane (R-32), 2,3,3,3-tetrafluoropropene (R-1234yf) and carbo dioxide (CO2, R-744). The invention also provides a composition R-1132a, R-32, R-1234yf and at least one compound selected from the group consisting of: pentafluoroethane (R-125), 1,1-difluoroethane (R-152a), 1,1,1,2-tetrafluoroethane (R-134a), trans-1,3,3,3-tetrafluoropropene (R-1234ze(E)) and 1,1,1,2,3,3,3-heptafluoropropane (R-227ea); optionally, the composition comprises at least one further compound selected from the group consisting of trifluoroethylene (R-1123), propane (R-290), propylene (R-1270), isobutane (R-600a) and carbon dioxide (CO2, R-744). The present invention also provides a composition comprising R-1132a, R-32 and R-1234yf.Type: GrantFiled: February 11, 2020Date of Patent: June 25, 2024Assignee: MEXICHEM FLUOR S.A. DE C.V.Inventor: Robert Low
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Patent number: 11999690Abstract: A method for preparing a partially fluorinated ester comprising acyl and alkoxy groups wherein the acyl group comprises a branched or linear fluorine containing C3-C8 group with one of the structures: (Formulae (I), (II)) wherein X and Y are independently selected from: —H, —CH3, —F, —Cl, —CH2F, —CF3—OCF3, —OCH2CF3, OCH2CF2CHF2 and —CH2CF3 (wherein both X and Y cannot be H) comprising reacting an unsaturated halocarbon: (Formula (III)) wherein A and B are independently selected from the group comprising —H, —CH3, —F, —Cl, —CH2F, —CF3, —OCF3, —OCH2CF3, OCH2CF2CHF2 and —CH2CF3 (wherein both A and B cannot be H) with carbon monoxide and an alcohol, in the presence of a catalyst methods.Type: GrantFiled: September 20, 2019Date of Patent: June 4, 2024Assignee: Mexichem Fluor S.A. de C.V.Inventors: Andrew P. Sharratt, John Charles McCarthy
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Publication number: 20240050404Abstract: A pharmaceutical composition comprises a drug component. The drug component comprises at least one pharmaceutically acceptable salt of glycopyrrolate, beclomethasone diproprionate, and at least one long acting beta-2-agonist (LABA) selected from formoterol and the pharmaceutically acceptable salts thereof. The pharmaceutical composition further comprises a propellant component. The propellant component consists of one or more hydrofluorocarbon and hydrocarbon propellant compounds, at least 90 weight % of which is 1,1-difluoroethane (HFA-152a). The drug component is the sole drug component in the pharmaceutical composition. The pharmaceutical composition is in the form of a solution and optionally comprises ethanol, but is free of other polar solvents/co-solvents.Type: ApplicationFiled: October 18, 2023Publication date: February 15, 2024Applicant: MEXICHEM FLUOR S.A. DE C.V.Inventors: Stuart CORR, Timothy James Noakes
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Publication number: 20240050405Abstract: A pharmaceutical composition comprises a drug component. The drug component comprises at least one pharmaceutically acceptable salt of glycopyrrolate, budesonide, and at least one long acting beta-2-agonist (LABA) selected from formoterol and the pharmaceutically acceptable salts thereof. The pharmaceutical composition further comprises a propellant component. The propellant component consists of one or more hydrofluorocarbon and hydrocarbon propellant compounds, at least 90 weight % of which is 1,1-difluoroethane (HFA-152a). The drug component is the sole drug component in the pharmaceutical composition. The pharmaceutical composition is in the form of a suspension and optionally comprises ethanol, but is free of other polar solvents/co-solvents.Type: ApplicationFiled: October 18, 2023Publication date: February 15, 2024Applicant: MEXICHEM FLUOR S.A. DE C.V.Inventors: Stuart CORR, Timothy James Noakes
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Patent number: 11897832Abstract: A method for preparing a partially fluorinated alcohol, comprises reacting an epoxide: wherein R1, R2, R3 and R4 are independently selected from the group comprising H, F, Cl, Br, I, CF3, alkyl, fluoroalkyl, haloalkyl with a fluorinating agent.Type: GrantFiled: March 18, 2020Date of Patent: February 13, 2024Assignee: MEXICHEM FLUOR S.A. DE C.V.Inventors: Andrew Sharratt, David Grundy, Ira Saxena
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Patent number: 11883372Abstract: A pharmaceutical composition is described. The composition comprises: (i) a drug component consisting of salmeterol xinafoate and fluticasone propionate. and (ii) a propellant component at least 90 wt % of which is 1,1-difluoroethane (HFA-152a). The drug component is the sole drug component in the pharmaceutical composition.Type: GrantFiled: March 15, 2022Date of Patent: January 30, 2024Assignee: MEXICHEM FLUOR S.A. DE C.V.Inventors: Stuart Corr, Timothy James Noakes
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Patent number: 11884776Abstract: The present invention relates to compounds according to formula (Ia) or formula (Ib); wherein each W is independently selected from the group consisting of H, F, Cl, Br, I and (CY2)mCY3; each Y is independently selected from the group consisting of F, Cl, Br and I; each Z is independently selected from the group consisting of H, OH, (CW2)pCW3, CY3, OCW3, O(CW2)pCW3, OCW((CY2)mCY3)CWCW2, (CW2)pOH, polyalkylene glycol and 15 polyolester; n is an integer from 2 to 49; m is an integer from 0 to 3; p is an integer from 0 to 9; the molecular weight average (Mw) is ?5500; and the polydispersity index is ?1.45; compositions comprising these compounds and methods for their production.Type: GrantFiled: January 9, 2023Date of Patent: January 30, 2024Assignee: MEXICHEM FLUOR S.A. DE C.V.Inventor: Andrew Sharratt
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Publication number: 20240018403Abstract: A composition comprises (i) from about 2 to about 50% by weight 1,1-difluoroethene (vinylidene fluoride, R-1132a), (ii) from about 2 to about 95% by weight difluoromethane (R-32), and (iii) 2,3,3,3-tetrafluoropropene (R-1234yf).Type: ApplicationFiled: September 25, 2023Publication date: January 18, 2024Applicant: MEXICHEM FLUOR S.A DE C.V.Inventor: ROBERT E. LOW
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Patent number: 11826348Abstract: A pharmaceutical composition is described. The composition may include a drug component and a propellant component. The drug component comprises at least one pharmaceutically acceptable salt of glycopyrrolate, beclomethasone diproprionate, and at least one long acting beta-2-agonist (LABA) selected from formoterol and the pharmaceutically acceptable salts thereof. The propellant component comprises 1,1-difluoroethane (HFA-152a).Type: GrantFiled: June 29, 2021Date of Patent: November 28, 2023Assignee: MEXICHEM FLUOR S.A. DE C.V.Inventors: Stuart Corr, Timothy James Noakes
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Patent number: 11826349Abstract: A pharmaceutical composition is described. The composition may include a drug component and a propellant component. The drug component comprises at least one pharmaceutically acceptable salt of glycopyrrolate, budesonide, and at least one long acting beta-2-agonist (LABA) selected from formoterol and the pharmaceutically acceptable salts thereof. The propellant component comprises 1,1-difluoroethane (HFA-152a).Type: GrantFiled: June 29, 2021Date of Patent: November 28, 2023Assignee: MEXICHEM FLUOR S.A. DE C.V.Inventors: Stuart Corr, Timothy James Noakes
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Publication number: 20230357075Abstract: A fluorite synthetic stone comprises: (a) a glass matrix comprising Ca, Si and O, and having a predetermined weight ratio of Ca to Si; and (b) CaF2 crystals dispersed in the glass matrix at a concentration of at least about 70 wt.%. A method of making fluorite synthetic stones includes formulating a particulate mixture comprising: CaF2 crystals at a concentration of at least about 70 wt.%; and an excipient having a predetermined weight ratio of Ca to Si. Aggregates are prepared from the particulate mixture. The aggregates are heat treated to form a plurality of fluorite synthetic stones, where each synthetic stone comprises: a glass matrix comprising Ca, Si and O; and CaF2 crystals dispersed in the glass matrix at a concentration of at least about 70 wt.%.Type: ApplicationFiled: April 28, 2023Publication date: November 9, 2023Applicant: MEXICHEM FLUOR S.A. DE C.V.Inventors: Luis Angel Gutierrez L., Gabriel A. García Martínez, Iván Martínez Costa, Rosa Rivera Martínez, Paloma Venegas Rodríguez, Carlos Cárdenas Daw
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Patent number: 11773308Abstract: The invention provides a composition comprising 1,1-difluoroethene (R-1132a), difluoromethane (R-32), 2,3,3,3-tetrafluoropropene (R-1234yf), optionally carbon dioxide (CO2, R-744), and, optionally, 1,1,2-trifluoroethene (R-1123).Type: GrantFiled: September 2, 2021Date of Patent: October 3, 2023Assignee: MEXICHEM FLUOR S.A DE C.V.Inventor: Robert E. Low
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Patent number: 11767277Abstract: The present invention provides a process for preparing 3,3,3-trifluoropropene (1243zf), the process comprising: (a) fluorinating CCl3CH2CH2Cl (250fb) to produce a reaction product comprising CF3CH2CH2Cl (253fb) in the liquid phase in a first reactor, using HF as the fluorinating agent; and (b) (i) dehydrohalogenating 253fb to produce 1243zf in the vapour phase in the present of a catalyst in a second reactor; or (b)(ii) dehydrohalogenating 253fb to produce 1243zf in a second reactor, wherein the reaction product comprising 253fb produced in step (a) has subjected to one or more purification steps before step (b). The present invention also provides an azeotropic or near-azeotropic composition comprising HF and 253fb.Type: GrantFiled: April 30, 2021Date of Patent: September 26, 2023Assignee: Mexichem Fluor S.A. de C.V.Inventors: Emma Jayne Hodgson, Clare Mary Skae, Gary Lloyd, Claire Elizabeth McGuinness, Clive Robert Giddis, James Henry Murray
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Publication number: 20230270669Abstract: A pharmaceutical composition is described. The composition comprises: (i) a drug component comprising at least one antiviral compound that is suitable for treating viruses that cause adverse effects in the lungs; and (ii) a propellant. The composition can be delivered to the lungs using a metered dose inhaler (MDI).Type: ApplicationFiled: September 2, 2021Publication date: August 31, 2023Applicant: MEXICHEM FLUOR S.A. DE C.V.Inventor: Stuart CORR
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Patent number: 11718597Abstract: A method for preparing a tetrafluoro-1,2-epoxypropane comprising reacting a 3-acetoxy-2-bromo-tetrafluoropropane with an alkaline or alkaline earth metal hydroxide solution to provide a tetrafluoro-1,2-epoxypropane, and partially fluorinated polyethers of formula [OCRR1CR2R3]n wherein n is from 5 to 100, R is F or H, R1 is CF3, R2 is F or H and R3 is H.Type: GrantFiled: June 1, 2022Date of Patent: August 8, 2023Assignee: MEXICHEM FLUOR S.A.DE C.V.Inventors: James Henry Murray, Andrew Paul Sharratt
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Patent number: 11692114Abstract: A refrigerant composition comprising carbon dioxide (CO2; R-744) and from 1 to 32 weight % difluoromethane (R-32) based on the total weight of the composition is described. Also described is the use of the refrigerant composition for providing heating and cooling and a refrigeration, air-conditioning or heat pump system comprising the refrigerant composition.Type: GrantFiled: August 14, 2019Date of Patent: July 4, 2023Assignee: MEXICHEM FLUOR S.A. DE C.V.Inventor: Robert E. Low
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Patent number: 11692115Abstract: The invention provides a composition comprising 1,1-difluoroethene (R-1132a), difluoromethane (R-32), 2,3,3,3-tetrafluoropropene (R-1234yf), optionally carbon dioxide (CO2, R-744), and, optionally, 1,1,2-trifluoroethene (R-1123).Type: GrantFiled: September 2, 2021Date of Patent: July 4, 2023Assignee: MEXICHEM FLUOR S.A DE C.V.Inventor: Robert E. Low
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Patent number: 11690823Abstract: A pharmaceutical composition is described. The composition may include a drug component and a propellant component. The drug component comprises at least one pharmaceutically acceptable salt of glycopyrrolate and at least one long acting beta-2-agonist (LABA) selected from formoterol and the pharmaceutically acceptable salts thereof. At least 90 weight % of the propellant component is 1,1-difluoroethane (HFA-152a).Type: GrantFiled: September 7, 2021Date of Patent: July 4, 2023Assignee: MEXICHEM FLUOR S.A. DE C.V.Inventors: Stuart Corr, Timothy James Noakes
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Patent number: 11680219Abstract: A composition comprising a heat transfer portion and a lubricating portion, wherein the lubricating portion comprises one or more compounds according to formula (I) of the present disclosure, wherein W is H; Y is independently selected from the group consisting of F, Cl, Br and I; Z is independently selected from the group consisting of H, OH, (CW2)PCW3, CY3, OCW3, O(CW2)pCW3, OCW((CY2)mCY3)CWCW2, polyalkylene glycol and polyolester; n is an integer from 2 to 250; m is an integer from 0 to 3; and p is an integer from 0 to 9.Type: GrantFiled: October 6, 2021Date of Patent: June 20, 2023Assignee: MEXICHEM FLUOR S.A. DE C.V.Inventors: Robert Elliot Low, Andrew Paul Sharratt, Emma Jane Hodgson
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Publication number: 20230151150Abstract: The present invention relates to compounds according to formula (Ia) or formula (Ib); wherein each W is independently selected from the group consisting of H, F, Cl, Br, I and (CY2)mCY3; each Y is independently selected from the group consisting of F, Cl, Br and I; each Z is independently selected from the group consisting of H, OH, (CW2)pCW3, CY3, OCW3, O(CW2)pCW3, OCW((CY2)mCY3)CWCW2, (CW2)pOH, polyalkylene glycol and 15 polyolester; n is an integer from 2 to 49; m is an integer from 0 to 3; p is an integer from 0 to 9; the molecular weight average (Mw) is ?5500; and the polydispersity index is ?1.45; compositions comprising these compounds and methods for their production.Type: ApplicationFiled: January 9, 2023Publication date: May 18, 2023Applicant: MEXICHEM FLUOR S.A. DE C.V.Inventor: Andrew Sharratt