Patents Assigned to MEXICHEM FLUORS S.A DE C. V.
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Patent number: 10954184Abstract: The present invention provides compounds of formula (I): wherein W is independently selected from the group consisting of H, F, Cl, Br and I; 10 X is independently selected from the group consisting of H, F, Cl, Br, I, CW3 and OR on the basis that at least one X is OR; R is independently selected from the group consisting of C(O) (CH2)m(CF2)nY and CW2C(CW2OC(O)(CH2)m(CF2)nY)3; m is an integer from 0 to 2; 15 n is an integer from 2 to 8; Y is C(Z)3; and Z is independently selected from the group consisting of H, F, Cl, Br and I. Such compounds may be utilised as lubricants, for example in heat transfer compositions.Type: GrantFiled: December 7, 2016Date of Patent: March 23, 2021Assignee: MEXICHEM FLUOR S.A. DE C.V.Inventors: Robert Elliot Low, Andrew Paul Sharratt, Emma Jane Hodgson
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Patent number: 10899686Abstract: The present invention provides an integrated process for preparing 2,3,3, 3-tetrafluoropropene (1234yf), the process comprising: (a) vapour phase catalytic fluorination of a first composition comprising 3,3,3-trifluoro-2-chloro-prop-1-ene (CF3C—CNCH2, 1233xf) with hydrogen fluoride (HF) in a fluorination reactor to produce a fluorination product stream comprising 1,1,2,2-pentafluoropropane (245cb), HF and HCI; (b) vapour phase catalytic dehydrofluorination composition comprising 245cb in a dehydrofluorination reactor to produce a dehydrofluorination product stream comprising 1234yf and HF; wherein the fluorination product stream and the dehydrofluorination product stream are combined and subjected to (c) purification to produce a composition comprising 245cb and a 1234yf product stream.Type: GrantFiled: July 14, 2016Date of Patent: January 26, 2021Assignee: MEXICHEM FLUOR S.A. DE C.V.Inventors: Sheryl Louise Johnson, Stephen Andrew Flaherty, James Henry Murray, Fiona Louise Smith, Jonathan Junhay Man, Clive Robert Giddis
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Patent number: 10888546Abstract: A pharmaceutical composition is described. The composition comprises: (i) a drug component comprising at least one pharmaceutically acceptable salt of giycopyrrolate; and (ii) a propellant component comprising 1,1-difluoroethane (HFA-152a).Type: GrantFiled: September 18, 2017Date of Patent: January 12, 2021Assignee: MEXICHEM FLUOR S.A. DE C.V.Inventors: Stuart Corr, Timothy James Noakes
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Publication number: 20200407296Abstract: The invention relates to a process comprising contacting a composition comprising a (hydro)halocarbon and a compound of formula Rf—C?CX with a basic solution comprising an hydroxide, an alkoxide and/or an amide to reduce the concentration of Rf—C?CX, wherein Rf is a perfluorinated alkyl group and X is H, F, Cl, Br, or I. The invention further relates to process for preparing a (hydro)halocarbon comprising (i) converting a starting material, optionally in the presence of HF and/or a catalyst, to a composition comprising the (hydro)halocarbon and a compound of formula Rf—C?CX, wherein Rf is a perfluorinated alkyl group and X is H, F, Cl, Br, or I; (ii) contacting the composition with a basic solution comprising an hydroxide, an alkoxide and/or an amide to reduce the concentration of the compound of formula Rf—C?CX; and (iii) recovering the (hydro)halocarbon.Type: ApplicationFiled: September 11, 2020Publication date: December 31, 2020Applicant: Mexichem Fluor S.A. de C.V.Inventor: Andrew Paul Sharratt
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Patent number: 10800720Abstract: The invention relates to a process comprising contacting a composition comprising a (hydro)halocarbon and a compound of formula Rf—C?CX with a basic solution comprising an hydroxide, an alkoxide and/or an amide to reduce the concentration of Rf—C?CX, wherein Rf is a perfluorinated alkyl group and X is H, F, Cl, Br, or I. The invention further relates to process for preparing a (hydro)halocarbon comprising (i) converting a starting material, optionally in the presence of HF and/or a catalyst, to a composition comprising the (hydro)halocarbon and a compound of formula Rf—C?CX, wherein Rf is a perfluorinated alkyl group and X is H, F, Cl, Br, or I; (ii) contacting the composition with a basic solution comprising an hydroxide, an alkoxide and/or an amide to reduce the concentration of the compound of formula Rf—C?CX; and (iii) recovering the (hydro)halocarbon.Type: GrantFiled: January 19, 2018Date of Patent: October 13, 2020Assignee: MEXICHEM FLUOR S.A. DE C.V.Inventor: Andrew Paul Sharratt
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Patent number: 10792256Abstract: A pharmaceutical composition is described. The composition comprises: (i) a drug component comprising at least one salmeterol compound selected from salmeterol and the pharmaceutically acceptable derivatives thereof; and (ii) a propellant component comprising 1,1-difluoroethane (HFA-152a).Type: GrantFiled: September 18, 2017Date of Patent: October 6, 2020Assignee: MEXICHEM FLUOR S.A. DE C.V.Inventors: Stuart Corr, Timothy James Noakes
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Publication number: 20200281874Abstract: A pharmaceutical composition is described. The composition comprises: (i) a drug component comprising at least one salmeterol compound selected from salmeterol and the pharmaceutically acceptable derivatives thereof; and (ii) a propellant component comprising 1,1-difluoroethane (HFA-152a).Type: ApplicationFiled: May 26, 2020Publication date: September 10, 2020Applicant: MEXICHEM FLUOR S.A. DE C.V.Inventors: Stuart Corr, Timothy James Noakes
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Publication number: 20200281875Abstract: A pharmaceutical composition is described. The composition comprises: (i) a drug component comprising at least one salmeterol compound selected from salmeterol and the pharmaceutically acceptable derivatives thereof; and (ii) a propellant component comprising 1,1-difluoroethane (HFA-152a).Type: ApplicationFiled: May 26, 2020Publication date: September 10, 2020Applicant: MEXICHEM FLUOR S.A. DE C.V.Inventors: Stuart Corr, Timothy James NOAKES
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Patent number: 10766648Abstract: A propellant filling apparatus (10) comprising a filling booth (11) for receiving within it one or more containers for filling with a propellant; a propellant inlet (12) to the filling booth (11) that is capable of supplying propellant into one or more containers within the filling booth (11) from a propellant supply; an inert gas inlet (13) supplying inert gas from an inert gas supply (14) into the filling booth (11), a discharge outlet (16) from the filling booth (11); an extraction fan (17) that is capable of adjusting its fan speed to maintain the pressure of gas in the filling booth (11) to be lower than atmospheric pressure; and an oxygen detector (27) that is capable of detecting levels of oxygen in the filling booth (11) and triggering circulation of inert gas in the filling booth (11) when the level of oxygen in the filling booth (11) falls below an oxygen threshold level.Type: GrantFiled: September 18, 2017Date of Patent: September 8, 2020Assignee: MEXICHEM FLUOR S.A. DE C.V.Inventors: Paul Alan Dowdle, Stuart Corr, Paul Watkinson
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Patent number: 10767913Abstract: The invention provides a composition comprising 1,1-difluoroethene (R-1132a); a second component selected from the group consisting of hexafluoroethane (R-116), ethane (R-170) and mixtures thereof; and, optionally carbon dioxide (CO2, R-744).Type: GrantFiled: July 25, 2019Date of Patent: September 8, 2020Assignee: Mexichem Fluor S.A. De C.V.Inventors: Robert E. Low, Andrew P. Sharratt
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Patent number: 10766849Abstract: A compound of formula (I): wherein W is independently selected from the group consisting of H, F, CI, Br, and I; X is independently selected from the group consisting of H, F, CI, Br, and I; Y is independently selected from the group consisting of F, CI, Br, and I; Z is independently selected from the group consisting of H, F, CI, Br, and I; n is an integer from 1 to 8; and n? is an integer from 1 to 12.Type: GrantFiled: October 21, 2015Date of Patent: September 8, 2020Assignee: MEXICHEM FLUOR S.A. DE C.V.Inventors: Andrew Paul Sharratt, Robert Elliott Low, Emma Jane Hodgson
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Publication number: 20200255360Abstract: The present invention provides a process for preparing 3,3,3-trifluoropropene (1243zf), the process comprising: (a) fluorinating CCI3CH2CH2CI (250fb) to produce a reaction product comprising CF3CH2CH2CI (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 presence 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: ApplicationFiled: April 30, 2020Publication date: August 13, 2020Applicant: MEXICHEM FLUOR S.A. DE C.V.Inventors: CLARE MARY SKAE, GARY LLOYD
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Publication number: 20200255761Abstract: A composition comprising a heat transfer portion and a lubricating portion, wherein the lubricating portion comprises one or more compounds according to formula (I): wherein W is independently selected from the group consisting of H, F, Cl, Br and I; 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, 0(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: ApplicationFiled: April 27, 2020Publication date: August 13, 2020Applicant: MEXICHEM FLUOR S.A. DE C.V.Inventors: Robert Elliot LOW, Andrew Paul SHARRATT, Emma Jane HODGSON
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Publication number: 20200247734Abstract: The present invention provides a process for preparing 1,1,1,2,2-pentafluoropropane (245cb), the process comprising gas phase catalytic dehydrochlorination of a composition comprising 1,1,1-trifluoro-2,3-dichloropropane (243db) to produce an intermediate composition comprising 3,3,3-trifluoro-2-chloro-prop-1-ene (CF3CCI?CH2, 1233xf), hydrogen chloride (HCl) and, optionally, air; and gas phase catalytic fluorination with hydrogen fluoride (HF) of the intermediate composition to produce a reactor product composition comprising 245c, HF, HCl and air; wherein the process is carried out with a co-feed of air.Type: ApplicationFiled: April 22, 2020Publication date: August 6, 2020Applicant: MEXICHEM FLUOR S.A. DE C.V.Inventors: SHERYL LOUISE JOHNSON, STEPHEN ANDREW FLAHERTY, CLIVE ROBERT GIDDIS
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Publication number: 20200239403Abstract: A compound of formula (I): wherein W is independently selected from the group consisting of H, F, Cl, Br, and I; X is independently selected from the group consisting of H, F, Cl, Br, and I; Y is independently selected from the group consisting of F, Cl, Br, and I; Z is independently selected from the group consisting of H, F, Cl, Br, and I; n is an integer from 1 to 8; and n? is an integer from 1 to 12.Type: ApplicationFiled: February 19, 2020Publication date: July 30, 2020Applicant: MEXICHEM FLUOR S.A. DE C.V.Inventors: Andrew Paul SHARRATT, Robert Elliott LOW, Emma Jane HODGSON
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Publication number: 20200224071Abstract: The invention provides a composition comprising 1,1-difluoroethene (R-1132a), difluoromethane (R-32), 2,3,3,3-tetra-fluoropropene (R-1234yf), optionally carbon dioxide (CO2, R-744), and, optionally, 1,1,2-trifluoroethene (R-1123).Type: ApplicationFiled: August 6, 2018Publication date: July 16, 2020Applicant: MEXICHEM FLUOR S.A. DE C.V.Inventor: ROBERT E LOW
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Patent number: 10669219Abstract: The present invention provides a process for preparing 1,1,1,2,2-pentafluoropropane (245cb), the process comprising gas phase catalytic dehydrochlorination of a composition comprising 1,1,1-trifluoro-2,3-dichloropropane (243db) to produce an intermediate composition comprising 3,3,3-trifluoro-2-chloro-prop-1-ene (CF3CCI?CH2, 1233xf), hydrogen chloride (HCI) and, optionally, air; and gas phase catalytic fluorination with hydrogen fluoride (HF) of the intermediate composition to produce a reactor product composition comprising 245cb, HF, HCI and air; wherein the process is carried out with a co-feed of air.Type: GrantFiled: July 14, 2016Date of Patent: June 2, 2020Assignee: MEXICHEM FLUOR S.A. DE C.V.Inventors: Sheryl Louise Johnson, Stephen Andrew Flaherty, Clive Robert Giddis
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Patent number: 10647643Abstract: The present invention provides a method for purifying a fluid comprising a first drying stage which comprises contacting a first fluid stream comprising one or more hydro(chloro)fluoroolefins and water with a source of sulphuric acid to produce a first treated fluid stream comprising the hydro(chloro)fluoroolefin(s) and a first spent sulphuric acid stream, wherein the first treated fluid stream comprises a lower concentration of water than the first fluid stream.Type: GrantFiled: July 14, 2016Date of Patent: May 12, 2020Assignee: MEXICHEM FLUOR S.A. DE C.V.Inventors: Emma Jayne Hodgson, James Henry Murray, Gary Lloyd
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Publication number: 20200130875Abstract: In the field of medical dosing device filling, a propellant conditioning assembly (10) comprises an input conduit (12) to receive a propellant at a constant pressure from a propellant reservoir (102). The conditioning assembly (10) also includes a bifurcation (18) to divide the input conduit (12) into first and second conditioning conduits (20, 22). The first conditioning conduit (20) includes a cooler device (24) to selectively cool a diverted first propellant stream (26) that flows through the first conditioning conduit (20), and the second conditioning conduit (22) includes a heater device (32) to selectively heat a diverted second propellant stream (34) that flows through the second conditioning conduit (22). The conditioning assembly (10) still further includes an output conduit (44) to receive the first and second propellant streams (26, 34).Type: ApplicationFiled: March 21, 2018Publication date: April 30, 2020Applicant: MEXICHEM FLUOR S.A. DE C.V.Inventors: PAUL ANTHONY WATKINSON, PAUL ALAN DOWDLE
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Publication number: 20200071585Abstract: A composition comprising: (i) 1,1-difluoroethene (vinylidene fluoride, R-1132a); (ii) carbon dioxide (CO2, R-744); (iii) pentafluoroethane (R-125); and (iv) one or more of trifluoromethane (R-23) and hexafluoroethane (R-116).Type: ApplicationFiled: May 17, 2018Publication date: March 5, 2020Applicant: MEXICHEM FLUOR S.A. DE C.V.Inventor: ROBERT LOW