Patents Assigned to MEXICHEM FLUORS S.A DE C. V.
  • Patent number: 12018203
    Abstract: 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: Grant
    Filed: February 11, 2020
    Date of Patent: June 25, 2024
    Assignee: MEXICHEM FLUOR S.A. DE C.V.
    Inventor: Robert Low
  • Patent number: 11999690
    Abstract: 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: Grant
    Filed: September 20, 2019
    Date of Patent: June 4, 2024
    Assignee: Mexichem Fluor S.A. de C.V.
    Inventors: Andrew P. Sharratt, John Charles McCarthy
  • Publication number: 20240050404
    Abstract: 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: Application
    Filed: October 18, 2023
    Publication date: February 15, 2024
    Applicant: MEXICHEM FLUOR S.A. DE C.V.
    Inventors: Stuart CORR, Timothy James Noakes
  • Publication number: 20240050405
    Abstract: 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: Application
    Filed: October 18, 2023
    Publication date: February 15, 2024
    Applicant: MEXICHEM FLUOR S.A. DE C.V.
    Inventors: Stuart CORR, Timothy James Noakes
  • Patent number: 11897832
    Abstract: 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: Grant
    Filed: March 18, 2020
    Date of Patent: February 13, 2024
    Assignee: MEXICHEM FLUOR S.A. DE C.V.
    Inventors: Andrew Sharratt, David Grundy, Ira Saxena
  • Patent number: 11883372
    Abstract: 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: Grant
    Filed: March 15, 2022
    Date of Patent: January 30, 2024
    Assignee: MEXICHEM FLUOR S.A. DE C.V.
    Inventors: Stuart Corr, Timothy James Noakes
  • Patent number: 11884776
    Abstract: 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: Grant
    Filed: January 9, 2023
    Date of Patent: January 30, 2024
    Assignee: MEXICHEM FLUOR S.A. DE C.V.
    Inventor: Andrew Sharratt
  • Publication number: 20240018403
    Abstract: 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: Application
    Filed: September 25, 2023
    Publication date: January 18, 2024
    Applicant: MEXICHEM FLUOR S.A DE C.V.
    Inventor: ROBERT E. LOW
  • Patent number: 11826348
    Abstract: 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: Grant
    Filed: June 29, 2021
    Date of Patent: November 28, 2023
    Assignee: MEXICHEM FLUOR S.A. DE C.V.
    Inventors: Stuart Corr, Timothy James Noakes
  • Patent number: 11826349
    Abstract: 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: Grant
    Filed: June 29, 2021
    Date of Patent: November 28, 2023
    Assignee: MEXICHEM FLUOR S.A. DE C.V.
    Inventors: Stuart Corr, Timothy James Noakes
  • Publication number: 20230357075
    Abstract: 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: Application
    Filed: April 28, 2023
    Publication date: November 9, 2023
    Applicant: 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
  • Patent number: 11773308
    Abstract: 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: Grant
    Filed: September 2, 2021
    Date of Patent: October 3, 2023
    Assignee: MEXICHEM FLUOR S.A DE C.V.
    Inventor: Robert E. Low
  • Patent number: 11767277
    Abstract: 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: Grant
    Filed: April 30, 2021
    Date of Patent: September 26, 2023
    Assignee: 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
  • Publication number: 20230270669
    Abstract: 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: Application
    Filed: September 2, 2021
    Publication date: August 31, 2023
    Applicant: MEXICHEM FLUOR S.A. DE C.V.
    Inventor: Stuart CORR
  • Patent number: 11718597
    Abstract: 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: Grant
    Filed: June 1, 2022
    Date of Patent: August 8, 2023
    Assignee: MEXICHEM FLUOR S.A.DE C.V.
    Inventors: James Henry Murray, Andrew Paul Sharratt
  • Patent number: 11692114
    Abstract: 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: Grant
    Filed: August 14, 2019
    Date of Patent: July 4, 2023
    Assignee: MEXICHEM FLUOR S.A. DE C.V.
    Inventor: Robert E. Low
  • Patent number: 11692115
    Abstract: 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: Grant
    Filed: September 2, 2021
    Date of Patent: July 4, 2023
    Assignee: MEXICHEM FLUOR S.A DE C.V.
    Inventor: Robert E. Low
  • Patent number: 11690823
    Abstract: 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: Grant
    Filed: September 7, 2021
    Date of Patent: July 4, 2023
    Assignee: MEXICHEM FLUOR S.A. DE C.V.
    Inventors: Stuart Corr, Timothy James Noakes
  • Patent number: 11680219
    Abstract: 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: Grant
    Filed: October 6, 2021
    Date of Patent: June 20, 2023
    Assignee: MEXICHEM FLUOR S.A. DE C.V.
    Inventors: Robert Elliot Low, Andrew Paul Sharratt, Emma Jane Hodgson
  • Publication number: 20230151150
    Abstract: 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: Application
    Filed: January 9, 2023
    Publication date: May 18, 2023
    Applicant: MEXICHEM FLUOR S.A. DE C.V.
    Inventor: Andrew Sharratt